Clutch Slipping
When the engine revs rise but the car does not speed up accordingly, especially in high gears or uphill, the clutch is slipping.
High risk
Have it checked soon. A slipping clutch overheats and can leave you without drive.
Short answer · How do I know my clutch is slipping?
Typical signs are rising revs without acceleration, a burning smell after hills and the clutch biting higher than it used to. Clutches are wear parts; oil contamination and a hydraulic fault that keeps the clutch partly pressed can also cause slip.
Safe checks you can do
- Test in a high gearAt low speed in a high gear, accelerate firmly: revs rising without speed means slip.Only where it is safe and legal.
- Note the biting pointVery high take-up suggests a worn clutch.
- Check for leaksOil on the clutch or a leaking slave cylinder.
Questions that narrow it down
- Is there a burning smell?Overheated clutch.
- Has the car towed heavy loads?Faster wear.
- Is the pedal returning fully?A hydraulic fault can keep it partly pressed.
Possible causes
Listed without ranking. Use the questions above to see which ones fit your car.
- Worn clutch plateNormal wear.
- Oil contaminationFrom a seal leak.
- Hydraulic faultClutch not fully engaged.
- Worn pressure plateWeak clamping.
Questions about Clutch Slipping
How long does a clutch last?
It depends heavily on driving; city driving and towing wear it faster.
Is the flywheel checked too?
Yes, a workshop inspects it during clutch replacement.