Air Leak Checks
- Ensure exhaust system has no leaks. Connect CO tester, using Adapter (VAG 1363/3), on CO tap tube. Start engine and allow it to idle at closed throttle position.
- Spray air intake system with Leak Detector Spray (G 001 800 A1). Air intake leaks will draw in leak detector spray. The spray reduces air/fuel mixture ignition and engine RPM, and decreases CO reading. Repair leaks as necessary.
TEMPERATURE REGULATOR
| Temperature °F (°C) | Control Flap Position |
|---|---|
| Less Than 68 (20) | Cold Air Intake Closed |
| Between 68-86 (20-30) | Open To Both Hot & Cold Air Intake |
| More Than 86 (30) | Hot Air Intake Closed |