PCV system blockage and oil leaks
ModerateEngineFive-cylinder petrol engines build crankcase pressure when the breather system blocks, pushing oil out of seals and making the engine smoky or sweaty.
Most affected: 2.4, 2.4T, 2.5T, T5
Estimated cost: £250–£650Affects: 2000–2009Often appears around: 80k-150k miles
Typical symptoms
- •Whistling from dipstick area
- •Oil leaks around cam seals
- •Idle disturbance or smoke
What to inspect before you buy
- ✓Glove test over the oil filler
- ✓Inspect for heavy oil sweat
- ✓Ask if the PCV system has been renewed