Get Service and care -> Emission control system (dpf) Guide for Audi Q5 SUV Third Generation (2024-2026)

Checking and topping up fluids

AdBlue when you refill and will continue to indi-

cate a low AdBlue level. The message will disap-

pear as soon as the tank has thawed.

Refilling AdBlue from a bottle

Applies to: vehicles with selective catalytic reduction

Refill bottles are available from qualified work-

shops. Approved refill bottles contain about 1.9

litres of AdBlue.

Emission control system

General information

►

Take the cap off the refill bottle ð

refilling AdBlue on page 231, ð

filling AdBlue on page 232.

in Before

in Before re-

WARNING

►

Screw the bottle clockwise onto the filler neck

as far as it will go.

To empty the bottle, lightly press the bottom of

the bottle. Keep pressing the bottom of the

bottle until the bottle is empty, or until no

more fluid runs into the tank.

Unscrew the bottle anti-clockwise without ap-

plying pressure.

Remove the bottle and screw the tank cap back

on ðpage 233, After refilling AdBlue.

The exhaust system is very hot when the vehi-

cle is being driven and after the engine has

been switched off.

– Never touch the tailpipes when they are hot

– risk of burns!

– Because of the high temperatures which can

occur in the exhaust system, do not park the

vehicle where the exhaust can come into

contact with flammable materials under the

car (e.g. on grass or at the forest edge) – risk

of fire!

►

CAUTION

– Do not apply any underseal agents in the

area around the exhaust system – risk of

fire!

Use only refill bottles of the correct type ap-

proved for your vehicle. AdBlue may leak out

if you use another system.

Catalytic converter

Applies to: vehicles with petrol engine

After refilling AdBlue

Applies to: vehicles with selective catalytic reduction

Please refer to the safety information

Closing the filler neck

ðpage 233, General information.

►

Screw the AdBlue cap clockwise onto the filler

The vehicle must only be used with unleaded pet-

rol, otherwise the catalytic converter will be ir-

reparably damaged.

neck until the AdBlue cap clicks audibly ð

Before refilling AdBlue on page 231, ð

Before refilling AdBlue on page 232.

Never allow the fuel tank to run completely dry,

as the irregular supply of fuel can cause misfir-

ing. This allows unburnt fuel to enter the exhaust

system, which can cause overheating and dam-

age to the catalytic converter.

►

Press the left side of the flap to close it (you

should hear it click into place).

After refilling

The vehicle must be driven so that the system

can detect the AdBlue which has been added.

This process can take several minutes.

Particulate filter

Applies to: vehicles with particulate filter

►

If the AdBlue tank had run dry and a range of

Please refer to the safety information

ðpage 233, General information.

0 km was shown on the display, switch on the

ignition for approx. 30 seconds before starting

the engine.

The particulate filter can filter out almost all soot

particles contained in the exhaust gas. In normal

driving conditions the filter is self-cleaning.

AdBlue can freeze at very low temperatures. Re-

strictions may therefore be encountered when re-

filling. In this case, the system may not detect

Should the self-cleaning function of the filter not 

233

Checking and topping up fluids

be able to operate, e.g. if the vehicle is continu-

ously used only for short trips, the filter will be-

come obstructed with soot and a driver message

will appear. The particulate filter requires clean-

ing (regeneration).

driving at a constant speed is the correct meth-

od for your vehicle (based on the engine) ð

The engine must be warmed up prior to the re-

generation trip.

►

Drive at a speed of between 50 km/h and

Driver messages:

120 km/h ð

. As a result of the increase in



Particulate filter: can be cleaned by driving

temperature, the soot in the filter will be

burned off.

Do not stop the regeneration trip until the indi-

cator lamp goes out.

vehicle. You can continue driving. See owner's

manual

►

This procedure causes the particulate filter to re-

generate itself and may take some time (approx.

30 minutes).



Particulate filter: can be cleaned by driving

vehicle. You can continue driving. See owner's

manual

If the indicator lamp does not go out, drive to a

qualified workshop and have the fault rectified.

Different regeneration procedures are required,

depending on the type of engine (petrol or die-

sel).

Information on the particulate filter

As a result of the high temperatures which occur

during the regeneration of the particulate filter,

the radiator fan may continue to run after the en-

gine is switched off, even if the engine has not

yet reached operating temperature.

Regenerating the particulate filter by driving

and coasting

Applies to: vehicles with petrol engine

Before starting the regeneration trip, check

whether regenerating the particulate filter by

driving and coasting is the correct method for

Applies to vehicles with diesel engine: If the indi-

cator lamp requesting you to refuel the vehicle

 also appears in the instrument cluster during

the regeneration trip, the particulate filter regen-

eration process may be interrupted. Drive to a

filling station and then resume the regeneration

trip after refuelling the vehicle.

your vehicle (based on the engine) ð

The engine must be warmed up prior to the re-

generation trip.

►

Drive at a speed of at least 80 km/h ð

►

Then take your foot off the accelerator com-

pletely for a few seconds and let the vehicle

coast in gear.

To maximise the service life of the particulate fil-

ter, always use suitable engine oil and the correct

fuel. You should also avoid driving the vehicle

continuously on short trips.

►

Repeat this procedure (accelerate to at least

80 km/h and coast again) until the indicator

lamp goes out.

This procedure causes the particulate filter to re-

generate itself and may take some time.

WARNING

It is essential, when regenerating the particu-

late filter, that you adjust your speed to suit

the weather, road, terrain and traffic condi-

tions. The recommendation must never lead

to the driver disregarding local traffic regula-

tions.

If the indicator lamp does not disappear after a

while, drive to a qualified workshop and have the

fault rectified.

Regenerating the particulate filter by driving

at a constant speed

Applies to: vehicles with diesel engine

CAUTION

Before starting the regeneration trip, check

whether regenerating the particulate filter by

Before starting the regeneration trip, check

which method (driving at a constant speed or



234

Service and care -> Emission control system (dpf) for Your Audi Q5 SUV Third Generation (2024-2026)

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