Engine control and emission control system
Introduction to the subject
In this chapter you will find information on the following subjects:
More information:
- Shifting
- Refueling
- Fuel
- Engine oil
- Vehicle battery
- Notice about data recorded by vehicle control modules
- Towing
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 rust proofing 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.
Indicator lights
Read and follow the introductory information and safety information first
| Lights up | Possible cause | Proper response |
|---|---|---|
| Engine control malfunction (Electronic Power Control). | Have engine checked immediately by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. | |
| Engine control/monitoring system malfunction (engine Malfunction Indicator Light - MIL) | Ease off the accelerator. Carefully drive to the nearest authorized Volkswagen dealer or authorized Volkswagen Service Facility. Have engine checked. |
| Flashes | Possible cause | Proper response |
|---|---|---|
| Misfire, which can damage the catalytic converter. | Ease off the accelerator. Carefully drive to the nearest authorized Volkswagen dealer or authorized Volkswagen Service Facility. Have engine checked. |
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.
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.
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 .
If you experience misfires, loss of power or the engine is not running smoothly while driving, reduce speed immediately and have the vehicle checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Otherwise, gasoline could reach the exhaust system and get into the atmosphere. The catalytic converter could also be damaged by overheating!
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