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 […]

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 […]

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 […]

Article by: Paul Axford Applies to: All models with the M30 big six engine (this article was written with a 730i). The 730 and 735 big six automatics all have the ZF 4HP22 4-speed transmission, which is installed on hundreds of thousands of various European cars. Additional models with the […]

Article by: Don Gale Article applies to: all e32 and e34 models. I took some detailed dimensions noting the differences between a large e32 diff vs. medium case e34, for my friend Andrew, who has also has a boosted e32 735i 5-spd: Note: medium case axle hubs may come in […]

Article by: Don Gale Article applies to: all e32 and e34 models. I took some detailed dimensions noting the differences between a large e32 diff vs. medium case e34, for my friend Andrew, who has also has a boosted e32 735i 5-spd: Note: medium case axle hubs may come in […]