P0806moderate severityPowertrain
Clutch Position Sensor Circuit Range/Performance
on 2003 BMW M5 4.9L V8 S62 · RWD
What this code means
The clutch position sensor signal is outside the expected range or does not track properly. Clutch engagement calculations become unreliable.
Symptoms
- Rough clutch engagement
- Delayed shifts
- Transmission warning light
Common causes
- Misadjusted clutch sensor
- Faulty clutch position sensor
- Worn clutch components
- Wiring resistance or corrosion
Diagnostic steps
- Read live sensor data during clutch travel
- Compare readings to specification
- Inspect and adjust sensor if applicable
- Test wiring for resistance faults
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Powertrain codes on this vehicle
29CC
Misfire Cylinder 1
29CD
Misfire Cylinder 2
29CE
Misfire Cylinder 3
29CF
Misfire Cylinder 4
29D0
Misfire Cylinder 5
29D1
Misfire Cylinder 6
29D2
Misfire Cylinder 7
29E0
Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1