Topic: Driveline & Transmission

ZF4HP22 Automatic Rebuild

Article by: Unknown author Article applies to: all models with the ZF 4HP22/24 transmissions. Problem: ‘A’ clutch burnout: transmission will not move the car forward or there is a long delay once the car is put into gear. Replacement: Teflon Seal replacement The cause of the problem: the steel seals […]

Gearbox Rear Seal Replacement

Article by: Johan Problem: Every time I went for a long drive I noticed a burned ATF smell when getting out of the car. I also had to fill the gearbox every 1500 km to keep it shifting smoothly. The underside of my car was completely covered with ATF. When […]

Gearbox Replacement

Article by: Johan Article applies to: all models with the ZF4HP22 automatic transmission. Problem: The ZF4HP22 gearbox in my car has shifted a bit rough from 3rd to 4th for a while now. But a fluid change, the first time with a new filter, every now and then had prolonged […]