OBD-II code · Powertrain (generic)
P00D8 Turbocharger/Supercharger Bypass Valve B Temperature Too High
Turbocharger/Supercharger Bypass Valve B Temperature Too High: the component is overheating, typically from extended load or slip. This affects turbo/supercharger boost-pressure control.
Is it safe to drive with P00D8?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCooling system inadequate
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Bypass Valve B, Intercooler
Related codes
- P00D7Turbocharger/Supercharger Bypass Valve A Temperature Too High
- P25FDTurbocharger/Supercharger Bypass Valve C Temperature Too High
- P00D5HO2S Sensor Correlation Bank 1 Sensor 1/Bank 1 Sensor 2
- P00D6HO2S Sensor Correlation Bank 2 Sensor 1/Bank 2 Sensor 2
- P00D9Ambient Air Temperature Sensor Circuit B
- P00DAAmbient Air Temperature Sensor Circuit B Range/Performance
- P00DBAmbient Air Temperature Sensor Circuit B Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.