You may download, display, print and reproduce this material in unaltered form only (retaining this notice and imagery metadata) for your personal, non-commercial use within your family or organisation. © Badsect0r 2013 - This work is copyright. Use of this information is done so at the sole risk of the person and/or persons using it.
As such I absolve myself from responsibility for any damages or losses caused by the use of said information.
I do not condone it's use by unauthorised or unqualified persons in the servicing of their own or anybody else's vehicle. Therefore, although the following article is written with a specific audience in mind, it should also be of some use to a much wider audience of "Do It Yourself" car enthusiasts as a whole.Īny information contained herein should be used for educational purposes only. It uses 4 solenoids and has a 7 pin plug.Īlthough the specifics described below do not apply to all versions of the valve body, the principals and procedures are often similar for other versions of the transmission and in some cases other transmissions entirely. It is an electronically and hydraulically controlled version of the transmission. The one described here is from my 1992 BMW E34 535i pictured above. There are many versions of this transmission in general use. It can be found in many vehicles, including those made by BMW, Jaguar, Maserati, Puegeot, Volvo, Porsche, and Landrover. Perform a complete valve body rebuild on a ZF 4HP22EH transmission with E9 (7 pin, 4 solenoid) valve body, in order to improve shift quality, and eliminate some anomolous behaviors of this notorious transmission.Įarly forms of this transmission were first introduced in 1980 and it was produced through to 2003.
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