Transmission general data
3-speed automatic transmission 3HP22 was
produced by ZF company in 1973. This transmission was intended for rear drive passenger vehicles with motors M10, M20,
M30
of BMW product range (big coupes and sedans, 3, 5, 6 and 7 series). This automatic transmission
transmits the torque up to 320 Nm.
Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type3ATRWD3202.42Dexron II
Technical issues and repair guidelines
One of the most common sources of problems in this 3HP22 transmission is the governor. The governor is a shifting pressure regulator on the output shaft of the transmission. The gear shifting point according to the car speed depends on the above mentioned governor.The wear-out of niches for plastic rings on the hub of the last transmission clutch is considered to be another soft spot. This problem also may lead to the governor pressure loss.
How to repair this transmission (Videos)3HP22 valve body rebuild
Instruction manuals and useful linksLink typeSourceDescriptionwebwikipediaZF 3HP22 transmission