problem with mk4 tdi 150

[ando]

Hi guys really need your help,

i have a mk 4 golf pd 150 that has been remapped by revotech and a powertech induction kit fitted. everything was wonderful for a time, however i now have trouble when accelerating. the problem is between 2000-2800rpm only, in 3rd, 4th, 5th gear (not 1st, 2nd, 6th gear). The revs increases without the car accelerating, quickly moving from 2000-2800, then back down to 2500 (ish) before accelerating normally. now it only does this when i accelerate hard and only at this point on the rev range. if i keep the revs above 3000 (peak torque) then its behaves perfectly in all gears. i have had the air flow meter changed, and after speaking to a mechanic over the phone they tell me the clutch sounds as if it is slipping, the car has done less than 50000 miles and is fine apart from 2000-2800rpm??? the car shows no other signs of clutch wear. if anyone has any advice or solutions i would be very ablidged, thanks.

[steve baker]

Hi
Not sure this will help you but, my standard 150 has been driven hard always and had a clutch at 69,000 miles. It went suddenly and could be provoked to slip at high speed in 5th and sixth gears only at around 2200rpm ( max boost I think) because the revs rise so quickly beyond 2000rpm it was impossible to tell if it was slipping in 1st or 2nd.

[ando]

yep, just had it checked and after much umming and arrring it is the clutch slipping going to replace it with a performance clutch and see how that goes. Cheers for the support.