P0755moderate severityPowertrain
Shift Solenoid B
on 1999 BMW 540iT E39 4.4L V8 · RWD
What this code means
Malfunction in shift solenoid B.
Symptoms
- Check Engine Light
- Shifting issues
- Limp mode
Common causes
- Faulty solenoid B
- Wiring damage
- Contaminated fluid
Diagnostic steps
- Test solenoid resistance
- Check wiring
- Check fluid
Repair notes
Replace shift solenoid B.
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