Engine control and emission control system
Introduction to the subject
In this chapter you will find information on the following subjects:
WARNING
The vehicle exhaust system and the catalytic converter get very hot. This can cause a fire and serious personal injury.
- Never park where parts of the hot exhaust system and catalytic converter could ignite flammable materials, such as brush, leaves, dry grass, spilled fuel, etc.
- Never apply additional undercoating or rustproofing on or near the exhaust manifold, exhaust pipes, catalytic converter, or heat shields.
WARNING
California Proposition 65 Warning
- Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects and reproductive harm. In addition, certain fluids contained in vehicles and certain products of component wear contain or emit chemicals known to the State of California to cause cancer and birth defects and reproductive harm.
Catalytic converter
Read and follow the introductory information and safety information first
The catalytic converter provides exhaust gas after-treatment to help reduce pollutants in the exhaust gas. To help ensure long service life of the exhaust system and gasoline engine catalytic converter:
- Only use unleaded fuel .
- Never completely empty the fuel tank.
- Do not exceed the correct oil level .
- Do not tow the vehicle to start it, but use a jump-start instead .
Tips and troubleshooting
Read and follow the introductory information and safety information first
When the ignition is switched on, several warning and indicator lights come on briefly for a function check. They go out after a few seconds.
Exhaust system malfunction
- Ease off the accelerator.
- Carefully drive to the nearest authorized Volkswagen dealer or authorized Volkswagen Service Facility to have engine checked.
Engine control/monitoring system misfire
- Ease off the accelerator.
- Carefully drive to the nearest authorized Volkswagen dealer or authorized Volkswagen Service Facility to have engine checked.
If the engine misfires or loses power
- Reduce speed immediately.
- Drive to nearest qualified workshop at medium engine speeds and low engine loads.
- If these symptoms occur directly after refuelling, switch off the engine immediately to avoid any subsequent damage.
- Have the vehicle checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
WARNING
Failure to heed warning lights and instrument cluster text messages can cause the vehicle to break down in traffic and result in a collision and serious personal injury.
- Never ignore warning lights or text WARNINGS.
- Always stop the vehicle as soon as it is safe to do so.
NOTE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.

As long as the indicator lights or
are on, expect engine malfunctions, increased fuel consumption, and loss of engine efficiency.
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