Get Breakdown assistance Guide for Mercedes B Class SUV Second Generation (2011-2017)

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Vehicle tool kit

General notes

Vehicles with a TIREFIT kit: the TIREFIT kit is

located in the stowage well under the cargo

compartment floor.

Vehicles with a tire-change tool kit: the tire-

change tool kit is in the stowage well under the

cargo compartment floor.

Apart from certain country-specific variations,

the vehicles are not equipped with a tire-change

tool kit. Some tools for changing a wheel are

specific to the vehicle. For more information on

which tire changing tools are required and

approved to perform a wheel change on your

vehicle, consult a qualified specialist workshop.

Tools required for changing a wheel may

include, for example:

Jack

Wheel chock

Lug wrench

Alignment bolt

Vehicles with a TIREFIT kit

Tire inflation compressor

;

Tire sealant filler bottle

Towing eye

Open the tailgate.

Lift the cargo compartment floor upwards

(Y page 214).

Use the TIREFIT kit (Y page 243) or remove it.

Towing eye = is located under tire inflation

compressor :.

Vehicles with a tire-change tool kit

Open the tailgate.

Lift the cargo compartment floor upwards

(Y page 214).

Remove the tire-change tool kit.

The tire-change tool kit contains:

Jack

Lug wrench

One pair of gloves

Folding wheel chock

Flat tire

Preparing the vehicle

Your vehicle may be equipped with:

MOExtended tires (tires with run-flat proper-

ties) (Y page 242)

Vehicle preparation is not necessary on vehi-

cles with MOExtended tires

a TIREFIT kit (Y page 241)

Vehicles equipped with MOExtended tires are

not equipped with a TIREFIT kit at the factory. It

is therefore recommended that you additionally

equip your vehicle with a TIREFIT kit if you mount

tires that do not feature run-flat properties, e.g.

winter tires. A TIREFIT kit may be obtained from

a qualified specialist workshop.

Information on changing and mounting wheels

(Y page 275).

Stop the vehicle on solid, non-slippery and

level ground, as far away as possible from

traffic.

Switch on the hazard warning lamps.

Secure the vehicle against rolling away

(Y page 128).

If possible, bring the front wheels into the

straight-ahead position.

Switch off the drive system.

Vehicles without KEYLESS-GO: remove the

SmartKey from the ignition lock.

Vehicles with KEYLESS-GO: open the driv-

er's door.

The vehicle electronics now have status 0.

This is the same as the SmartKey having been

removed.

Make sure that the passengers are not endan-

gered as they do so. Make sure that no one is

near the danger area while a wheel is being

Flat tire

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Breakdown assistance

changed. Anyone who is not directly assisting

in the wheel change should, for example,

stand behind the barrier.

Get out of the vehicle. Pay attention to traffic

conditions when doing so.

Close the driver's door.

MOExtended tires (tires with run-flat

properties)

General notes

With MOExtended tires (tires with run flat char-

acteristics), you can continue to drive your vehi-

cle even if there is a total loss of pressure in one

or more tires. The affected tire must not show

any clearly visible damage.

You can recognize MOExtended tires by the

MOExtended marking which appears on the

sidewall of the tire. You will find this marking

next to the tire size designation, the load-bear-

ing capacity and the speed index (Y page 270).

MOExtended tires may only be used in conjunc-

tion with an active tire pressure monitor.

If a pressure loss warning message appears

in the multifunction display:

observe the instructions in the display mes-

sages (Y page 185).

check the tire for damage.

if driving on, observe the following notes.

The driving distance possible in run-flat mode is

approximately 50 miles (80 km) when the vehi-

cle is partially laden. When the vehicle is fully

laden it is approximately 19 miles (30 km).

In addition to the vehicle load, the driving dis-

tance possible depends upon:

Vehicle speed

Road condition

Outside temperature

The driving distance possible in run-flat mode

may be reduced by extreme driving conditions

or maneuvers, or it can be increased through a

moderate style of driving.

The driving distance possible in run-flat mode is

counted from the moment the tire pressure loss

warning appears in the multifunction display.

You must not exceed a maximum speed of

50 mph (80 km/h).

When replacing one or all tires, please observe

the following specifications for your vehicle's

tires:

size

type and

the "MOExtended" marking

If a tire has gone flat and cannot be replaced

with a MOExtended tire, a standard tire may be

used as a temporary measure. Make sure that

you use the proper size and type (summer or

winter tire).

Vehicles equipped with MOExtended tires are

not equipped with a TIREFIT kit at the factory. It

is therefore recommended that you additionally

equip your vehicle with a TIREFIT kit if you mount

tires that do not feature run-flat properties, e.g.

winter tires. A TIREFIT kit may be obtained from

a qualified specialist workshop.

Important safety notes

WARNING

When driving in emergency mode, the driving

characteristics deteriorate, e.g. when corner-

ing, accelerating quickly and when braking.

There is a risk of an accident.

Do not exceed the stated maximum speed.

Avoid abrupt steering and driving maneuvers,

and driving over obstacles (curbs, potholes,

off-road). This applies in particular to a laden

vehicle.

Stop driving in emergency mode if:

you hear banging noises.

the vehicle starts to shake.

you see smoke and smell rubber.

ESP

is intervening constantly.

there are tears in the sidewalls of the tire.

After driving in emergency mode, have the

wheel rims checked at a qualified specialist

workshop with regard to their further use. The

defective tire must be replaced in every case.

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TIREFIT kit

Important safety notes

TIREFIT is a tire sealant.

You can use TIREFIT to seal punctures of up to

0.16 in (4 mm), particularly those in the tire

tread. You can use TIREFIT at outside tempera-

tures down to Ò4 ‡ (Ò20 †).

WARNING

In the following situations, the tire sealant is

unable to provide sufficient breakdown assis-

tance, as it is unable to seal the tire properly:

there are cuts or punctures in the tire larger

than those mentioned above.

the wheel rim is damaged.

you have driven at very low tire pressures or

on a flat tire.

There is a risk of an accident.

Do not drive the vehicle. Contact a qualified

specialist workshop.

WARNING

The tire sealant is harmful and causes irrita-

tion. It must not come into contact with your

skin, eyes or clothing or be swallowed. Do not

inhale TIREFIT fumes. Keep tire sealant away

from children. There is a risk of injury.

If you come into contact with the tire sealant,

observe the following:

Rinse off the tire sealant from your skin

immediately with water.

If the tire sealant comes into contact with

your eyes, immediately rinse them thor-

oughly with clean water.

If tire sealant is swallowed, immediately

rinse your mouth out thoroughly and drink

plenty of water. Do not induce vomiting,

and seek medical attention immediately.

Immediately change out of clothing which

has come into contact with tire sealant.

If an allergic reaction occurs, seek medical

attention immediately.

Residue from the tire sealant may come out

of the filler hose after use. This could cause

stains.

Therefore, place the filler hose in the plastic

bag which contained the TIREFIT kit.

Environmental note

Have the used tire sealant bottle disposed of

professionally, e.g. at a qualified specialist

workshop.

Do not operate the tire inflation compressor

for longer than ten minutes at a time without

a break. It may otherwise overheat.

The tire inflation compressor can be operated

again once it has cooled down.

Comply with the manufacturer’s safety instruc-

tions on the sticker on the tire inflation com-

pressor.

Using the TIREFIT kit

Do not remove any foreign objects which have

penetrated the tire, e.g. screws or nails.

Remove the tire sealant bottle, the accompa-

nying TIREFIT sticker and the tire inflation

compressor from the stowage well under-

neath the cargo compartment floor

(Y page 241).

Affix part : of the TIREFIT sticker to the

instrument cluster within the driver's field of

vision.

Affix part ; of the TIREFIT sticker near the

valve on the wheel with the defective tire.

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Breakdown assistance

Remove filler hose B and connector = from

the bottom section of the tire inflation com-

pressor housing ;.

Slide the yellow filler hose connector into the

mounting on yellow cap A of tire sealant filler

bottle : until the connector engages.

With the sealing rings in front, slide yellow cap

A of tire sealant bottle : into the mounting

of tire inflation compressor ;.

Yellow cap A and both hooks must engage.

Remove the cap from valve C on the faulty

tire.

Screw filler hose D onto valve C.

Insert plug = into a 12 V socket in your vehi-

cle.

Observe the notes on sockets (Y page 218).

Turn the SmartKey to position 1 in the ignition

lock (Y page 109).

Press on and off switch ? on the tire inflation

compressor to ON.

The tire inflation compressor is switched on.

The tire is inflated.

First, tire sealant is pumped into the tire. The

pressure can briefly rise to approximately

500 kPa (5 bar/73 psi).

Do not switch off the tire inflation com-

pressor during this phase.

Let the tire inflation compressor run for a

maximum of ten minutes. The tire should then

have attained a pressure of at least 200 kPa

(2.0 bar/29 psi).

If a pressure of 200 kPa (2.0 bar/29 psi) has

been attained after five minutes, see "Tire pres-

sure reached" (Y page 245).

If a tire pressure of 200 kPa (2.0 bar/29 psi) has

not been attained after five minutes, see "Tire

pressure not reached" (Y page 244).

If tire sealant has escaped, clean it off affected

areas as quickly as possible. Use plain water if

possible.

If your clothes are soiled with tire sealant, have

them cleaned with perchloroethylene at a dry

cleaner as soon as possible.

Tire pressure not reached

If a tire pressure of 200 kPa (2.0 bar/29 psi) has

not been attained after ten minutes:

Switch off the tire inflation compressor.

Unscrew the filler hose from the valve of the

faulty tire.

Note that tire sealant may escape when you

unscrew the filler hose.

Very slowly drive forwards or reverse approx-

imately 30 ft (10 m).

Pump up the tire again.

After a maximum of ten minutes, the tire pres-

sure must be at least 200 kPa (2.0 bar/

29 psi).

WARNING

If the required tire pressure is not reached

after the specified time, the tire is too badly

damaged. The tire sealant cannot repair the

tire in this instance. Damaged tires and a tire

pressure that is too low can significantly

impair the vehicle's braking and driving char-

acteristics. There is a risk of accident.

Do not continue driving. Contact a qualified

specialist workshop.

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Tire pressure reached

WARNING

A tire temporarily sealed with tire sealant

impairs the driving characteristics and is not

suitable for higher speeds. There is a risk of

accident.

You should therefore adapt your driving style

accordingly and drive carefully. Do not exceed

the specified maximum speed with a tire that

has been repaired using tire sealant.

The maximum permissible speed for a tire

sealed with tire sealant is 50 mph (80 km/h).

The upper part of the TIREFIT sticker must be

affixed to the instrument cluster in the driver's

field of vision.

If a tire pressure of 200 kPa (2.0 bar/29 psi) has

been attained after ten minutes:

Switch off the tire inflation compressor.

Unscrew the filler hose from the valve of the

faulty tire.

Note that tire sealant may escape when you

unscrew the filler hose.

Stow the tire sealant bottle and the tire infla-

tion compressor.

Pull away immediately.

Stop after driving for approximately ten

minutes and check the tire pressure with the

tire inflation compressor.

The tire pressure must now be at least

130 kPa (1.3 bar/19 psi).

WARNING

If the required tire pressure is not reached

after driving for a short period, the tire is too

badly damaged. The tire sealant cannot repair

the tire in this instance. Damaged tires and a

tire pressure that is too low can significantly

impair the vehicle's braking and driving char-

acteristics. There is a risk of accident.

Do not continue driving. Contact a qualified

specialist workshop.

In cases such as the one mentioned above,

contact an authorized Mercedes-Benz Cen-

ter. Or call 1-800-FOR-MERCedes (in the

USA) or 1-800-387-0100 (in Canada).

Correct the tire pressure if it is still at least

130 kPa (1.3 bar/19 psi). See the Tire and

Loading Information placard on the driver's

side B-pillar or the tire pressure table in the

charge socket flap for values.

To increase the tire pressure: switch on the

tire inflation compressor.

To reduce the tire pressure: depress pres-

sure release button : next to pressure

gauge ;.

When the tire pressure is correct, unscrew the

filler hose from the valve of the sealed tire.

Note that tire sealant may escape when you

unscrew the filler hose.

Screw the valve cap onto the tire valve of the

sealed tire.

To remove the tire sealant bottle from the tire

inflation compressor, press together the lock-

ing tabs on the yellow cap.

Pull the tire sealant bottle out of the tire infla-

tion compressor.

The filler hose remains attached to the tire

sealant bottle.

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245

Breakdown assistance

Drive to the nearest qualified specialist work-

shop and have the tire changed there.

Have the tire sealant bottle and the filler hose

replaced as soon as possible at a qualified

specialist workshop.

Have the tire sealant bottle replaced every

four years at a qualified specialist workshop.

Batteries

12 V battery – important safety notes

Special tools and expert knowledge are required

when working on the batteries, e.g. removal and

installation. You should therefore have all work

involving the batteries carried out at a qualified

specialist workshop.

WARNING

The battery terminal clamps can remain under

voltage even after being disconnected. If work

on the battery is carried out incorrectly, a

short-circuit may result. There is a risk of fire.

Always have work on the batteries carried out

at a qualified specialist workshop. Never dis-

connect a battery yourself.

WARNING

Work carried out incorrectly on the battery

can lead, for example, to a short circuit and

thus damage the vehicle electronics. This can

lead to function restrictions applying to

safety-relevant systems, e.g the lighting sys-

tem, the ABS (anti-lock braking system) or the

ESP

(Electronic Stability Program). The oper-

ating safety of your vehicle may be restricted.

You could lose control of the vehicle, for

example:

when braking

in the event of abrupt steering maneuvers

and/or when the vehicle's speed is not

adapted to the road conditions

There is a risk of an accident.

In the event of a short circuit or a similar inci-

dent, contact a qualified specialist workshop

immediately. Do not drive any further. You

should have all work involving the battery car-

ried out at a qualified specialist workshop.

For further information about ABS and ESP

see (Y page 59) and (Y page 62).

WARNING

Electrostatic build-up can lead to the creation

of sparks, which could ignite the highly explo-

sive gases of a battery. There is a risk of an

explosion.

Before handling the battery, touch the vehicle

body to remove any existing electrostatic

build-up.

The highly flammable gas mixture forms when

charging the battery as well as when jump-start-

ing.

Always make sure that neither you nor the bat-

tery is electrostatically charged. A build-up of

electrostatic charge can be caused, for exam-

ple:

by wearing clothing made from synthetic

fibers

due to friction between clothing and seats

if you push or pull the battery across the car-

pet or other synthetic materials

if you rub the battery with a cloth

WARNING

During the charging process, a battery produ-

ces hydrogen gas. If a short circuit occurs or

sparks are created, the hydrogen gas can

ignite. There is a risk of an explosion.

Make sure that the positive terminal of a

connected battery does not come into con-

tact with vehicle parts.

Never place metal objects or tools on a bat-

tery.

It is important that you observe the descri-

bed order of the battery terminals when

connecting and disconnecting a battery.

When jump-starting, make sure that the

battery poles with identical polarity are

connected.

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Breakdown assistance

It is particularly important to observe the

described order when connecting and dis-

connecting the jumper cables.

Never connect or disconnect the battery

terminals while the engine is running.

WARNING

Battery acid is caustic. There is a risk of injury.

Avoid contact with skin, eyes or clothing. Do

not inhale any battery gases. Do not lean over

the battery. Keep children away from batter-

ies. Wash away battery acid immediately with

plenty of clean water and seek medical atten-

tion.

Environmental note

Batteries contain dangerous

substances. It is against the

law to dispose of them with

the household rubbish. They

must be collected separately

and recycled to protect the

environment.

Dispose of batteries in an

environmentally friendly

manner. Take discharged

batteries to a qualified spe-

cialist workshop or a special

collection point for used bat-

teries.

Have the battery checked regularly at a

qualified specialist workshop.

Observe the service intervals in the Mainte-

nance Booklet or contact a qualified specialist

workshop for more information.

Comply with safety precautions and take pro-

tective measures when handling batteries.

Risk of explosion.

Fire, open flames and smoking are

prohibited when handling the bat-

tery. Avoid creating sparks.

Battery acid is caustic. Avoid contact

with skin, eyes or clothing.

Wear suitable protective clothing,

especially gloves, apron and face-

guard.

Rinse any acid spills immediately

with clear water. Contact a physician

if necessary.

Wear eye protection.

Keep children away.

Observe this Operator's Manual.

For safety reasons, Mercedes-Benz recom-

mends that you only use batteries which have

been tested and approved for your vehicle by

Mercedes-Benz. These batteries provide

increased impact protection to prevent vehicle

occupants from suffering acid burns should the

battery be damaged in the event of an accident.

In order for the battery to achieve the maximum

possible service life, it must always be suffi-

ciently charged.

Like other batteries, the vehicle battery may

discharge over time if you do not use the vehicle.

In this case, have the battery disconnected at a

qualified specialist workshop. You can also

charge the battery with a charger recommended

by Mercedes-Benz. Contact a qualified special-

ist workshop for further information.

Have the battery condition of charge checked

more frequently if you use the vehicle mainly for

short trips or if you leave it standing idle for a

lengthy period. Consult a qualified specialist

workshop if you wish to leave your vehicle

parked for a long period of time.

Only replace a battery with a battery that has

been recommended by Mercedes-Benz.

Remove the SmartKey if you park the vehicle

and do not require any electrical consumers.

The vehicle will then use very little energy, thus

conserving battery power.

After an interruption to the power supply, such

as due to a discharged battery, you must reset

the clock via the multimedia system. You can

Batteries

247

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find further information in the separate operat-

ing instructions.

Charging the 12‑volt battery

WARNING

During charging and jump-starting, explosive

gases can escape from the battery. There is a

risk of an explosion.

Particularly avoid fire, open flames, creating

sparks and smoking. Ensure there is sufficient

ventilation while charging and jump-starting.

Do not lean over a battery.

WARNING

Battery acid is caustic. There is a risk of injury.

Avoid contact with skin, eyes or clothing. Do

not inhale any battery gases. Do not lean over

the battery. Keep children away from batter-

ies. Wash away battery acid immediately with

plenty of clean water and seek medical atten-

tion.

WARNING

A discharged battery can freeze at tempera-

tures below freezing point. When jump-start-

ing the vehicle or charging the battery, gases

can escape from the battery. There is a risk of

an explosion.

Allow the frozen battery to thaw out before

charging it or jump-starting.

Only use battery chargers with a maximum

charging voltage of 14.8 V.

Only charge the battery using the jump-

starting connection point.

The jump-starting connection point is in the

engine compartment (Y page 249).

Open the hood.

Connect the battery charger to the positive

terminal and ground point in the same order

as when connecting the donor battery in the

jump-starting procedure (Y page 249).

If the indicator/warning lamps do not light up in

the instrument cluster at low temperatures, it is

very likely that the discharged battery has fro-

zen. In this case you may neither jump-start the

vehicle nor charge the battery. The service life of

a thawed-out battery may be shorter. The start-

ing characteristics can be impaired, particularly

at low temperatures. Have the thawed-out bat-

tery checked at a qualified specialist workshop.

Only charge the installed battery with a battery

charger which has been tested and approved by

Mercedes-Benz. A battery charger unit specially

adapted for Mercedes-Benz vehicles and tested

and approved by Mercedes-Benz is available as

an accessory. It permits the charging of the bat-

tery in its installed position. Contact an author-

ized Mercedes-Benz Center for further informa-

tion and availability. Read the battery charger's

operating instructions before charging the bat-

tery.

High-voltage battery – important

safety notes

DANGER

The vehicle's high-voltage electrical system is

under high voltage. If you modify components

in the vehicle's high-voltage electrical system

or touch damaged components, you may be

electrocuted. The components in the vehi-

cle's high-voltage electrical system may be

damaged in an accident, although the damage

is not visible. There is a risk of fatal injury.

Following an accident, do not touch any high-

voltage components and never modify the

vehicle's high-voltage electrical system. Have

the vehicle towed away after an accident and

the vehicle's high-voltage electrical system

checked by a qualified specialist workshop.

WARNING

In the event of a vehicle fire, the internal pres-

sure of the high-voltage battery can exceed a

critical value. In this case flammable gas

escapes through a ventilation valve on the

underbody. The gas can ignite. There is a risk

of injury.

Leave the danger zone immediately. Secure

the danger area at a suitable distance, whilst

observing legal requirements.

248

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Breakdown assistance

The vehicle's high voltage electrical system is

under high voltage.

Do not handle high-voltage components or

the orange cables of the vehicle's high-volt-

age electrical system.

Do not touch high-voltage components or the

orange cables of the high-voltage electrical

system when a vehicle has been involved in a

crash.

Do not touch any damaged components or

the damaged orange cables of the vehicle's

high-voltage electrical system.

Do not remove the covers of the high-voltage

electrical system components that are

marked with a warning sticker.

Do not leave the vehicle parked for longer than

14 days with a high-voltage battery condition of

charge below 20%.

You can check the condition of charge in the

charge level display (Y page 153).

If you park the vehicle and leave it stationary for

longer periods, connect it to a power supply.

If you leave the vehicle parked for longer than

four weeks, the battery may be damaged by

exhaustive discharging.

If you leave the vehicle parked for longer than six

weeks, the vehicle may suffer damage as a

result of lack of use.

Visit a qualified specialist workshop and seek

advice.

You can obtain information about trickle

chargers from a qualified specialist work-

shop.

Very low or very high outside temperatures

can impair the function of the high-voltage

battery (Y page 119). This can also occur

when the vehicle engine is switched off

(Y page 119).

Jump-starting

For the jump-starting procedure, use only the jump-starting connection point, consisting of a pos-

itive terminal and a ground point, in the engine compartment.

WARNING

Battery acid is caustic. There is a risk of injury.

Avoid contact with skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the

battery. Keep children away from batteries. Wash away battery acid immediately with plenty of

clean water and seek medical attention.

WARNING

During charging and jump-starting, explosive gases can escape from the battery. There is a risk

of an explosion.

Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient ven-

tilation while charging and jump-starting. Do not lean over a battery.

WARNING

During the charging process, a battery produces hydrogen gas. If a short circuit occurs or sparks

are created, the hydrogen gas can ignite. There is a risk of an explosion.

Make sure that the positive terminal of a connected battery does not come into contact with

vehicle parts.

Never place metal objects or tools on a battery.

It is important that you observe the described order of the battery terminals when connecting

and disconnecting a battery.

When jump-starting, make sure that the battery poles with identical polarity are connected.

Jump-starting

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Breakdown assistance

It is particularly important to observe the described order when connecting and disconnecting

the jumper cables.

Never connect or disconnect the battery terminals while the engine is running.

WARNING

A discharged battery can freeze at temperatures below freezing point. When jump-starting the

vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion.

Allow the frozen battery to thaw out before charging it or jump-starting.

Avoid repeated and lengthy starting attempts.

Do not use a rapid-charging device to start the engine.

If the indicator/warning lamps do not light up in the instrument cluster at low temperatures, it is very

likely that the discharged battery has frozen. In this case you may neither jump-start the vehicle nor

charge the battery. The service life of a thawed-out battery may be shorter. Have the thawed-out

battery checked at a qualified specialist workshop.

If the 12 V battery is discharged, or after the vehicle has been jump-started, the

ServiceService

Required

Required DoDo NotNot ShiftShift GearsGears VisitVisit DealerDealer message appears. There is a malfunction in the

on-board voltage. Visit a qualified specialist workshop immediately.

The drive system cannot be started if the 12 V battery is discharged. This is not dependent on

whether the high-voltage battery is charged or not. The vehicle cannot be jump-started if the high-

voltage battery is discharged. The high-voltage battery must be charged first.

The drive system can be started using another vehicle.

Only use batteries with an equal nominal voltage (12 volts).

Make sure that the battery of the donor vehicle does not have a significantly lower capacity than

the discharged battery.

Use jumper cables with a sufficient cross-section and insulated terminal clamps from a qualified

specialist workshop, e.g. an authorized Mercedes-Benz Center.

Make sure that the two vehicles do not touch.

Route the jumper cables so that they cannot be caught by rotating components in the engine

compartment.

Do not disconnect the discharged battery from the vehicle's electrical system.

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Jump-starting

Breakdown assistance

Switch off the engine of both vehicles.

Shift the transmission to position P.

Switch off all electrical consumers.

Remove battery cover :.

Connect positive terminal ; on the vehicle with the flat battery to positive terminal = of the

donor vehicle using the red jumper cable. Begin with the flat battery.

Connect negative terminal ? of the donor vehicle to negative terminal A of the vehicle with the

flat battery using the black jumper cable, beginning with donor vehicle's battery B.

Start the engine of the donor vehicle and run it at idling speed.

Switch on the ignition in the vehicle with the flat battery.

If the drive system cannot be activated immediately, wait for approximately 60 seconds between

starting attempts.

If the drive system does not start, call a breakdown service.

Jumper cables and further information regarding jump-starting can be obtained at any qualified

specialist workshop.

Towing

Important safety notes

WARNING

Functions relevant to safety are restricted or

no longer available if:

the ignition is switched off

the brake system or the power steering is

malfunctioning

there is a malfunction in the power supply

or the vehicle's electrical system

If your vehicle is being towed, much more

force may be necessary to steer or brake.

There is a risk of an accident.

In such cases, use a tow bar. Before towing,

make sure that the steering moves freely.

WARNING

You can no longer steer the vehicle if the

steering wheel lock has been engaged. There

is a risk of an accident.

Always switch off the ignition when towing the

vehicle with a tow cable or a tow bar.

WARNING

When towing or tow-starting another vehicle

and its weight is greater than the permissible

gross weight of your vehicle, the:

the towing eye could detach itself

the vehicle/trailer combination could roll-

over.

There is a risk of an accident.

When towing or tow-starting another vehicle,

its weight should not be greater than the per-

missible gross weight of your vehicle.

Details on the permissible gross vehicle weight

of your vehicle can be found on the vehicle iden-

tification plate (Y page 282).

When Active Brake Assist or the HOLD func-

tion is activated, the vehicle brakes automat-

ically in certain situations. To avoid damage to

the vehicle, deactivate these systems in the

following or similar situations:

when towing the vehicle

in the car wash

Make sure that the electric parking brake is

released. If the electric parking brake is faulty,

visit a qualified specialist workshop.

Mercedes-Benz recommends that you use an

authorized Mercedes-Benz Center for this

purpose.

Towing

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Only secure the tow rope or tow bar at the

towing eyes. Otherwise, the vehicle could be

damaged.

Observe the following points when towing

with a tow rope:

Secure the tow rope on the same side on

both vehicles.

Ensure that the tow cable is not longer than

legally permitted. Mark the tow cable in the

middle, e.g. with a white cloth (30 x 30 cm).

This will make other road users aware that

the vehicle is being towed.

Only secure the tow cable to the towing

eye.

Observe the brake lamps of the towing

vehicle while driving. Always maintain a dis-

tance so that the tow rope does not sag.

Do not use steel cables or chains to tow

your vehicle. You could otherwise damage

the vehicle.

Do not use the towing eyes for recovery pur-

poses as this could damage the vehicle. If in

doubt, recover the vehicle with a crane.

When towing, pull away slowly and

smoothly. If the tractive power is too high, the

vehicles could be damaged.

The vehicle can be towed a maximum of

30 miles (50km). The towing speed of 30 mph

(50km/h) must not be exceeded.

If the vehicle has to be towed more than

30 miles (50km), the front axle must be raised

or the entire vehicle raised and transported.

Do not tow with sling-type equipment. This

could damage the vehicle.

To tow vehicles with KEYLESS-GO, use the

SmartKey instead of the Start/Stop button.

The transmission may otherwise shift to posi-

tion P when you open the driver's or front-

passenger door, which could damage the

transmission.

Observe the legal requirements for the relevant

countries when towing away.

Make sure that no charging cable is plugged in.

The parking lock cannot be released if a charg-

ing cable is plugged in.

It is better to have the vehicle transported than

to have it towed away.

If the vehicle can no longer be driven because of

an accident or breakdown, you have the follow-

ing options:

transporting the vehicle

As a rule, you should have the vehicle trans-

ported.

towing the vehicle with a tow rope or tow bar

Only tow the vehicle in exceptional cases.

Observe the following notes.

The vehicle may not be towed and must always

be transported if:

the multifunction display is not working

one of more of the following warning lamps is

lit up:

Drive system

12 V battery

one or both of the following display messages

have appeared:

Stop Switch Engine OffStop Switch Engine Off

Service Required Do Not ShiftService Required Do Not Shift

Gears Visit DealerGears Visit Dealer

you have to tow the vehicle over a longer dis-

tance than 30 miles (50 km).

The battery must be connected and charged.

Otherwise, you:

cannot turn the SmartKey to position 2 in the

ignition lock

cannot release the electric parking brake

cannot move the transmission to position N

The function of the electric parking brake and

the parking lock is dependent on the on-board

voltage.

If the on-board voltage is low or if there is a sys-

tem malfunction:

the electric parking brake may not be applied

in certain circumstances, or

the transmission may not be shifted to P

Switch off non-essential consumers, e.g. the

radio.

Disarm the automatic locking feature before the

vehicle is towed (Y page 166). You could other-

wise be locked out when pushing or towing the

vehicle.

252

Towing

Breakdown assistance

Installing/removing the towing eye

Installing the towing eye

The brackets for the screw-in towing eye are

located in the bumpers. They are at the rear and

at the front, under covers :.

Remove the towing eye from the stowage

space.

The towing eye is located in the stowage well

under the cargo compartment floor.

Vehicles with the TIREFIT kit: the towing eye is

beneath the tire inflation compressor.

Press the mark on cover : inwards in the

direction of the arrow.

Take cover : off the opening.

Screw in the towing eye clockwise to the stop.

Removing the towing eye

Unscrew and remove the towing eye.

Place the towing eye in the stowage well

beneath the cargo compartment floor in the

cargo compartment (Y page 241).

Vehicles with the TIREFIT kit: put back the tire

inflation compressor.

Towing a vehicle with both axles on

the ground

It is important that you observe the safety

instructions when towing away your vehicle

(Y page 251).

Vehicles with KEYLESS-GO: use the Smart-

Key instead of the Start/Stop button

(Y page 110).

The transmission automatically shifts to posi-

tion P when you open the driver's or front-

passenger door or when you remove the Smart-

Key from the ignition lock. In order to ensure

that the transmission stays in position N when

towing the vehicle, you must observe the fol-

lowing points:

Make sure that the vehicle is stationary.

Turn the SmartKey to position 2 in the ignition

lock.

Depress and hold the brake pedal.

Shift the transmission to position N.

Release the brake pedal.

Release the electric parking brake.

Switch on the hazard warning lamps

(Y page 89).

Leave the SmartKey in position 2 in the igni-

tion lock.

If the 12 V battery indicator lamp lights up, you

must observe the following points:

Pull over and stop the vehicle safely as soon

as possible, paying attention to road and traf-

fic conditions.

Shift the transmission to position P.

Apply the electric parking brake.

In order to signal a change of direction when

towing the vehicle with the hazard warning

lamps switched on, use the combination

switch as usual. In this case, only the indicator

lamps for the direction of travel flash. After

resetting the combination switch, the hazard

warning lamp starts flashing again.

Towing the vehicle with the front axle

raised

Observe the important safety notes when tow-

ing your vehicle with the front axle raised

(Y page 251).

The ignition must be switched off if the vehi-

cle is being towed with the front axle raised.

Otherwise, ESP

may intervene and damage

the brake system.

Towing

253

Breakdown assistance

Vehicles with KEYLESS-GO: use the Smart-

Key instead of the Start/Stop button

(Y page 110).

Make sure that the vehicle is stationary.

Turn the SmartKey to position 2 in the ignition

lock.

When the vehicle is stationary, depress the

brake pedal and keep it depressed.

Shift the transmission to position P.

Release the brake pedal.

Release the electric parking brake.

Switch off the automatic locking

(Y page 166).

Switch on the hazard warning lamps

(Y page 89).

Turn the SmartKey in the ignition lock to posi-

tion 0 and leave the SmartKey in the ignition

lock.

Towing the vehicle with the rear axle

raised

When towing your vehicle with the rear axle

raised, it is important that you observe the

safety instructions (Y page 251).

The ignition must be switched off if you are

towing the vehicle with the rear axle raised.

Intervention by ESP

could otherwise dam-

age the brake system.

The transmission automatically shifts to posi-

tion P when you open the driver's or front-

passenger door or when you remove the Smart-

Key from the ignition lock. In order to ensure

that the transmission stays in position N when

towing the vehicle, you must observe the fol-

lowing points:

Vehicles with KEYLESS-GO: use the Smart-

Key instead of the Start/Stop button

(Y page 110).

Make sure that the vehicle is stationary.

Turn the SmartKey to position 2 in the ignition

lock.

Depress and hold the brake pedal.

Shift the transmission to position N.

Release the brake pedal.

Apply the electric parking brake.

Switch off the automatic locking

(Y page 166).

Bring the front wheels into the straight-ahead

position.

Switch on the hazard warning lamps

(Y page 89).

Turn the SmartKey in the ignition lock to posi-

tion 0 and leave the SmartKey in the ignition

lock.

Transporting the vehicle

All vehicles

You may only secure the vehicle by the

wheels, not by parts of the vehicle such as

axle or steering components. Otherwise, the

vehicle could be damaged.

Turn the SmartKey to position 2 in the ignition

lock (Y page 109).

Shift the transmission to position N.

As soon as the vehicle has been loaded:

Prevent the vehicle from rolling away by

applying the electric parking brake.

Shift the transmission to position P.

Turn the SmartKey to position 0in the ignition

lock and remove it.

Secure the vehicle.

The towing eye can be used to pull the vehicle

onto a trailer or transporter for transporting pur-

poses.

Fuses

Important safety notes

WARNING

If you manipulate or bridge a faulty fuse or if

you replace it with a fuse with a higher amper-

age, the electric cables could be overloaded.

This could result in a fire. There is a risk of an

accident and injury.

Always replace faulty fuses with the specified

new fuses having the correct amperage.

Only use fuses that have been approved for

Mercedes-Benz vehicles and which have the

correct fuse rating for the system concerned.

Only use fuses marked with an "S". Other-

254

Fuses

Breakdown assistance

wise, components or systems could be dam-

aged.

Make sure that no moisture can enter the

fuse box when the cover is open.

When closing the cover, make sure that it is

lying correctly on the fuse box. Moisture seep-

ing in or dirt could otherwise impair the oper-

ation of the fuses.

The fuses in your vehicle serve to close down

faulty circuits. If a fuse blows, all the compo-

nents on the circuit and their functions stop

operating.

Blown fuses must be replaced with fuses of the

same rating, which you can recognize by the

color and value. The fuse ratings are listed in the

fuse allocation chart.

The fuse allocation chart is in the fuse box in the

front-passenger footwell (Y page 256).

If a newly inserted fuse also blows, have the

cause traced and rectified at a qualified special-

ist workshop, e.g. an authorized Mercedes-Benz

Center.

Before changing a fuse

Secure the vehicle against rolling away

(Y page 128).

Switch off all electrical consumers.

Vehicles without KEYLESS-GO: remove the

SmartKey from the ignition lock.

Vehicles with KEYLESS-GO: open the driv-

er's door.

The vehicle electronics now have status 0.

This is the same as the SmartKey having been

removed.

The fuses are located in various fuse boxes:

Fuse box in the engine compartment on the

left-hand side of the vehicle, when viewed in

the direction of travel

Fuse box in the front-passenger footwell

The fuse allocation chart is on the fuse box in the

front-passenger footwell (Y page 256).

Fuse box in the engine compartment

WARNING

When the hood is open and the windshield

wipers are set in motion, you can be injured by

the wiper linkage. There is a risk of injury.

Always switch off the windshield wipers and

the ignition before opening the hood.

Open the hood.

Use a dry cloth to remove any moisture from

the fuse box.

To open: unclip hood release cable ? from

bracket =.

Open retaining clamps ;.

Fold cover : up in the direction of the arrow

and remove it.

To close: check whether the seal is seated

correctly in cover :.

Insert cover : at the back into openings A

on the fuse box.

Slide hood release cable ? to the side and

hold if necessary.

Fold down cover :.

Clip hood release cable ? into bracket =.

Fuses

255

Breakdown assistance

Hook clamps ; into the fuse box and close.

Close the hood.

Fuse box in the front-passenger foot-

well

To open: open the front-passenger door.

Remove the floormat.

Fold out perforated floor covering : in the

direction of the arrow.

To release cover =, press retaining

clamp ;.

Fold out cover = in the direction of the arrow

to the catch.

Remove cover = forwards.

Fuse allocation chart ? is located on the

lower right-hand side of cover =.

To close: insert cover = on the left-hand side

of the fuse box into the retainer.

Cover = engages in the retainers.

Fold down cover = until clamps ; lock audi-

bly.

Fold back perforated floor covering :.

Install the floormats.

256

Fuses

Breakdown assistance

Breakdown assistance for Your Mercedes B Class SUV Second Generation (2011-2017)

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