Audi Q5: Catalytic converter
Applies to vehicles: with gasoline engine
It is very important that your emission control system (catalytic
converter) is functioning properly to ensure that your vehicle is running in an
environmentally sound manner.
- Always use lead-free gasoline.
- Never run the tank down all the way to empty.
- Never put too much motor oil in your engine.
- Never try to push- or tow-start your vehicle.
The catalytic converter is an efficient ''clean up" device built into the
exhaust system of the vehicle. The catalytic converter burns many of the
pollutants in the exhaust gas before they are released into the atmosphere.
The exclusive use of unleaded fuel is critically important for the life of the
catalytic converter and proper functioning of the engine.
WARNING
The temperature of the exhaust system is high, both when driving and
after stopping the engine.
- Never touch the exhaust tail pipes once they have become hot. This
could result in burns.
- Do not park or operate the vehicle in areas where the hot exhaust
system may come in contact with dry grass, brush, fuel spill or other
material which can cause a fire.
- Do not apply additional undercoating or rustproofing on or near
the exhaust manifold, exhaust pipes, catalytic converter or heat shields.
During driving, the substance used for undercoating could overheat and cause
a fire.
Note
- Be aware that just one tank filling with leaded fuel will already
seriously degrade the performance of the catalytic converter.
- Do not exceed the correct engine oil level.
- Do not drive until the fuel tank becomes completely empty. The engine
could misfire. Unburned fuel could also get into the exhaust system and this
could cause the catalytic converter to overheat.
- Do not turn off the ignition while the vehicle is moving.
- Do not continue to operate your vehicle under these conditions, as
otherwise fuel can reach the catalytic converter. This could result in
overheating of the converter, requiring its replacement.
- To assure efficient operation of the Emission Control System:
- Have your vehicle maintained property and in accordance with the
service recommendations in your Warranty & Maintenance booklet.
- Lack of proper maintenance as well as improper use of the vehicle
will impair the function of the emission control system and could lead
to damage.
For the sake of the environment
Even when the Emission Control System is operating properly, the exhaust
gas can have a sulfur-like exhaust gas smell under some operating states. This
depends on the sulfur content of the fuel being used. Using a different brand of
fuel may help, or filling the tank with lead-free super grade gasoline.
READ NEXT:
Applies to vehicles: with diesel engine
The diesel particulate filter filters nearly all of the soot particles out of
the exhaust. The filter cleans itself automatically under normal driving
conditi
General
Your personal style of driving will determine the economy of your vehicle,
as well as exhaust and noise levels.
Fuel economy, environmental impact, and wear on your engine, brakes and tires
A badly tuned engine unnecessarily wastes a lot
of fuel.
Have your vehicle serviced at regular intervals.
By having your vehicle regularly serviced by an
authorized Audi dealer helps to ensure that
SEE MORE:
Special tools and workshop equipment
required
Torque Wrench 1331 5-50Nm -VAG1331-
Piston Resetting Tool -T10145-
Brake 1LB/1LC with Shims. Refer to → Chapter "Brake Pads, Removing and
Installing, Brake 1LB/1LC with Shims"
If old brake pads are being replaced with new ones, then it is ne
Removing
- Versions with insert: Remove the center console insert.
Refer to
→ Chapter "Center Console Insert, Removing and Installing".
- Versions with multimedia system control head: Multimedia
System Control Head -E380- removing Refer to
→ Communication; Rep. Gr.91;