Haldex Coupling Pump Failure
ModerateGearbox & TransmissionThe Haldex AWD coupling pump becomes clogged with sludge or its pressure sensor fails, disabling the 4WD system and triggering traction warnings.
Most affected: All AWD models
Typical symptoms
- •"Traction Reduced" message
- •Traction control warning light
- •Front wheels spinning on wet surfaces
What to inspect before you buy
- ✓Haldex oil change history (every 40k miles)
- ✓AWD operation test
- ✓Stored fault codes