- Engine / equipment
- VW Passat B6 2.0 TDI 170 PS (pump-injector)
- Period mentioned
- 2005–2009
- Symptoms
- The glow plug preheating fails, which on a diesel usually shows when starting from cold.
- Possible cause described
- According to L'argus (February 2009), the preheating problems on the Passat 2.0 TDI 170 PS came from the Wehrle preheating control unit, which was replaced with a Beru or Bosch one.
- Check for the garage
- Have the garage read the preheating fault codes and check the make of the control unit: if it is a Wehrle, the fix is to replace it with a Beru or Bosch one. Check the glow plugs too.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.
KNOWN FAULT · Volkswagen
Glow plug preheating faults from the Wehrle control unit (Passat 2.0 TDI 170 PS)
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
No verified estimate; ask the garage for a quote.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Have the garage read the preheating fault codes and check the make of the control unit: if it is a Wehrle, the fix is to replace it with a Beru or Bosch one. Check the glow plugs too.
What are the symptoms?
The glow plug preheating fails, which on a diesel usually shows when starting from cold.
Which cars and years does it affect?
- Brands
- Volkswagen
- Engine / equipment
- VW Passat B6 2.0 TDI 170 PS (pump-injector)
- Period mentioned
- 2005–2009
Taking it to a garage?
Models with this entry
- Volkswagen Passat B62005–2010
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