P0797moderate severityPowertrain
Pressure Control Solenoid C Stuck On
on 2024 Audi RS7 4.0L Twin-Turbo V8 · AWD
What this code means
Pressure control solenoid C is stuck on and not releasing properly. This causes improper hydraulic pressure in the transmission.
Symptoms
- Harsh engagement
- Transmission slipping or binding
- Warning light on
Common causes
- Stuck pressure control solenoid C
- Debris in valve body
- Contaminated fluid
- Faulty transmission control module
Diagnostic steps
- Scan and confirm stuck-on code
- Check transmission fluid condition
- Command solenoid off with scan tool
- Inspect valve body and solenoid
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