Tiguan 4Motion (5N1) L4-2.0L Turbo (CCTA) (2009)
4. Using VAS tester run basic settings 32 for at least 5 minutes.
5. While running basic settings 32 for 5 minutes we can monitor fields 1 and 2 for fuel trim readings.
6. If fuel trim values improve and move closer to 0, valve replacement is recommended.
7. If values do not improve, re-install original part. Use of the GFF is permitted at this point.
Technical Background
Large number of crankcase breathers replaced due to mis-diagnosis.
Production Solution
Not applicable.
Service
Information only.
Warranty
Information only.
Required Parts and Tools
No Special Parts required.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Dept. and Repair
Manuals for the latest information.