P3071high severityPowertrain
Transmission Temperature Exceeded Safe Operating Limit
on 2004 Audi A6 3.0L V6 · AWD
What this code means
The transmission fluid temperature has exceeded the maximum safe operating temperature. Extended operation at high temperature causes fluid breakdown and component damage.
Symptoms
- Transmission temperature warning light
- Limp mode activated
- Reduced shift quality
- Torque converter lockup forced
- Burning smell from transmission area
- Transmission fluid discolored
Common causes
- Towing beyond vehicle capacity
- Transmission cooler blockage
- Cooling fan failure
- Transmission cooler line restriction
- Stop-and-go driving in extreme heat
Diagnostic steps
- Read transmission temperature PID
- Inspect transmission cooler and lines
- Check cooling fan operation
- Inspect cooler line flow rate
- Check transmission fluid condition
Repair notes
Allow transmission to cool. Flush and replace transmission fluid if it has been overheated. Clean or replace transmission cooler. Address root cause of overheating.
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