Under this service action, updated engine control module (ECM) software will be installed to provide...
Volkswagen technical service bulletin Circular 24TT_20260421 for 2026 Volkswagen Tiguan.
- Bulletin number
- Circular 24TT_20260421
- Component
- Engine
- Summary
- Under this service action, updated engine control module (ECM) software will be installed to provide robustness improvements to the ECM calibration for the turbocharger variable turbine geometry (VTG) actuator endpoints. This has no impact on vehicle emissions. Updated affected vehicles chart. Added note to the work instructions regarding fault code P160900.
Owners of these vehicles have filed 15 complaints in the engine category.
Vehicles covered
- Volkswagen Tiguan 2026 2026
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