2025-2026 Mercedes G Class SUV Maintenance and care -> Engine compartment User Manual
MyCarUserManual.com
USER MANUALS FOR EVERY MAKE & MODEL

Maintenance and care -> Engine compartment for Your Mercedes G Class SUV Fifth Generation (2025-2026)

573
Engine compartment
Opening and closing the bonnet
&
DANGER
Risk of fatal injuries when carrying out maintenance work during
the charging process
During the charging process, the high-voltage on-board electrical sys‐
tem is under high voltage.
#
Do not perform any maintenance work during the charging
process.
&
WARNING
Risk of accident due to driving with the bonnet unlocked
The bonnet may open and block your view.
#
Never release the bonnet when driving.
#
Before every trip, ensure that the engine bonnet is locked.
&
WARNING
Risk of accident and injury when opening and closing the bonnet
The bonnet may suddenly drop into the end position.
There is a risk of injury for anyone in the engine bonnet's range of
movement.
#
Do not open or close the bonnet if there is a person in the
bonnet's range of movement.
&
WARNING
Risk of injury due to overheated vehicle
IF YOU OPEN THE BONNET IN THE EVENT OF AN OVERHEATED
VEHICLE OR FIRE IN THE ENGINE COMPARTMENT, THE FOLLOWING
SITUATIONS MAY OCCUR:
R
You may come into contact with hot gases.
R
You may come into contact with other escaping hot operating
fluids.
#
In the event of overheating or fire in the engine compartment,
keep the bonnet closed and call the fire service.
#
Allow the overheated vehicle to cool down first if you need to
open the bonnet.
G-Class - Owner's Manual
Maintenance and care Engine compartment
F465 0034 02
574
&
WARNING
Risk of injury due to moving parts
Components in the engine compartment may continue to run or start
unexpectedly even when the drive system is switched off.
Observe the following if you must open the bonnet:
#
Switch off the vehicle.
#
Never touch the danger zones surrounding moving compo‐
nents, e.g. the rotation area of the fan.
#
Remove jewellery and watches.
#
Keep items of clothing and hair away from moving parts.
&
WARNING
Risk of burns from hot components in the engine compartment
Certain components in the engine compartment can be very hot, e.g.
the drive system and the cooler.
#
Allow the drive system to cool down and touch only the com‐
ponents described below.
&
WARNING
Risk of injury from using the windscreen wipers when the bonnet
is open
If the windscreen wipers start moving when the bonnet is open, you
could be trapped by the wiper linkage.
#
Always switch off the windscreen wipers and the vehicle first if
you need to open the bonnet.
OPENING THE BONNET
#
To release the bonnet, pull on handle 1.
G-Class - Owner's Manual
Maintenance and care Engine compartment
F465 0034 02
575
#
Push handle 1 of the bonnet catch upwards and lift the bonnet by
approximately 40 cm.
The bonnet will be opened and held open automatically by the pneu‐
matic spring.
CLOSING THE BONNET
#
Lower the bonnet until the bonnet catch engages.
#
Then, press the bonnet firmly into the lock with both hands until it is
completely closed.
#
If the bonnet can still be lifted slightly, open the bonnet again and repeat
the previous step until it engages correctly.
Checking the coolant level
&
DANGER
Risk of fatal injuries when carrying out maintenance work during
the charging process
During the charging process, the high-voltage on-board electrical sys‐
tem is under high voltage.
#
Do not perform any maintenance work during the charging
process.
&
WARNING
Risk of injury due to overheated vehicle
IF YOU OPEN THE BONNET IN THE EVENT OF AN OVERHEATED
VEHICLE OR FIRE IN THE ENGINE COMPARTMENT, THE FOLLOWING
SITUATIONS MAY OCCUR:
R
You may come into contact with hot gases.
R
You may come into contact with other escaping hot operating
fluids.
#
In the event of overheating or fire in the engine compartment,
keep the bonnet closed and call the fire service.
#
Allow the overheated vehicle to cool down first if you need to
open the bonnet.
G-Class - Owner's Manual
Maintenance and care Engine compartment
F465 0034 02
576
&
WARNING
Risk of injury due to moving parts
Components in the engine compartment may continue to run or start
unexpectedly even when the drive system is switched off.
Observe the following if you must open the bonnet:
#
Switch off the vehicle.
#
Never touch the danger zones surrounding moving compo‐
nents, e.g. the rotation area of the fan.
#
Remove jewellery and watches.
#
Keep items of clothing and hair away from moving parts.
&
WARNING
Risk of scalding from hot coolant
You may scald yourself if you open the cap when the drive system is at
normal operating temperature.
#
Allow the drive system to cool down before opening the cap.
#
When opening the cap, wear protective gloves and safety
glasses.
#
Open the cap slowly to release pressure.
#
Park the vehicle on a level surface.
#
Check the coolant temperature display on the driver display
(/page392).
The coolant temperature must be below 40°C.
#
Slowly turn cap 1 anti-clockwise to release overpressure.
#
Continue turning cap 1 anti-clockwise and remove it.
#
If the coolant level is below the marker bar 2, refill with coolant that
has been approved for Mercedes-Benz.
%
Further information on coolant (/page706).
G-Class - Owner's Manual
Maintenance and care Engine compartment
F465 0034 02
577
Topping up the windscreen washer system
&
DANGER
Risk of fatal injuries when carrying out maintenance work during
the charging process
During the charging process, the high-voltage on-board electrical sys‐
tem is under high voltage.
#
Do not perform any maintenance work during the charging
process.
&
WARNING
Risk of injury due to overheated vehicle
IF YOU OPEN THE BONNET IN THE EVENT OF AN OVERHEATED
VEHICLE OR FIRE IN THE ENGINE COMPARTMENT, THE FOLLOWING
SITUATIONS MAY OCCUR:
R
You may come into contact with hot gases.
R
You may come into contact with other escaping hot operating
fluids.
#
In the event of overheating or fire in the engine compartment,
keep the bonnet closed and call the fire service.
#
Allow the overheated vehicle to cool down first if you need to
open the bonnet.
&
WARNING
Risk of injury due to moving parts
Components in the engine compartment may continue to run or start
unexpectedly even when the drive system is switched off.
Observe the following if you must open the bonnet:
#
Switch off the vehicle.
#
Never touch the danger zones surrounding moving compo‐
nents, e.g. the rotation area of the fan.
#
Remove jewellery and watches.
#
Keep items of clothing and hair away from moving parts.
&
WARNING
Risk of burns from hot components in the engine compartment
Certain components in the engine compartment can be very hot, e.g.
the drive system and the cooler.
#
Allow the drive system to cool down and touch only the com‐
ponents described below.
G-Class - Owner's Manual
Maintenance and care Engine compartment
F465 0034 02
578
&
WARNING
Risk of fire and injury from windscreen washer concentrate
Windscreen washer concentrate is highly flammable.
#
Avoid fire, naked flames, smoking and the creation of sparks
when using windscreen washer concentrate.
#
Turn cap 1 anti-clockwise and remove it.
#
Top up the washer fluid.
#
Replace cap 1 and turn it clockwise as far as it will go.
Keeping the air/water duct free
#
Keep the area between the bonnet and the windscreen free of deposits,
e.g. ice, snow or leaves.
G-Class - Owner's Manual
Maintenance and care Engine compartment
F465 0034 02

Related Topics

Maintenance and care
ASSYST PLUS service interval display Maintenance Management Telediagnostics Cleaning and care

Popular Owner Manuals

Audi
Audi
BMW
BMW
Citroen
Citroen
Ford
Ford
Honda
Honda
Peugeot
Peugeot