P189C — Function restriction due to insufficient pressure build-up
Reference detail for fault code P189C on the DQ200 DSG transmission family.
What P189C indicates
Stored when the hydraulic system cannot reach or maintain the pressure required for correct clutch and shift operation. Commonly stored together with P17BF on the DQ200 when the pressure accumulator housing is cracked, but can also be triggered by other hydraulic or electrical causes.
Symptoms
- Limp mode
- Delayed or refused gear engagement
- Warning lamp
- Loss of drive
Possible causes
- Cracked pressure accumulator housing
- Hydraulic leak in the mechatronic unit
- Worn hydraulic pump
- Low hydraulic fluid level
Related components
Mechatronic unit · Pressure accumulator
| Fault code | P189C |
|---|---|
| Transmission | DQ200 (7-speed dry DSG) |
| Factory code | 0AM/0CW |
| Category | Hydraulic pressure |
| Status | Verified |
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Related pages for the DQ200
DQ200 repair
Symptoms, mechatronic issues and what repair involves for this family.
DQ200 mechatronics
Replacement mechatronic unit and exchange options for this family.
DQ200 parts
Selected parts most often involved in repair for this family.
DQ200 fault codes
Every documented code for this family in one table.
Have a fault code to check?
Send us the code and the vehicle details and we will confirm the correct unit or part by email.