Code result
P277F
Clutch B Unexpected Mechanical Gear Disengagement
High severity
What it means
Clutch B inside the dual-clutch transmission disengaged mechanically without a corresponding command.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Clutch release piston seal failure
highOne of the most commonly reported causes for this code — check this first.
Sudden hydraulic pressure loss
mediumA plausible cause — test and verify before replacing parts.
Related help
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