ZF
Source-verified model
ZF 3HP22
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.
Speeds
3
Type
AT
Drive
RWD
Max torque
320
ATF capacity (L)
2.4
ATF change (L)
2
ATF type
Dexron II
Other and alternative codes of this transmission
3HP22Q
3HP22Q FWD
3 HP 22 FWD
1043.000
1043000
1043 000
3HP22
3-HP-22
3 HP 22
ZF 3HP22 FWD
ZF 3HP22
ZF3HP22
verified naming
OEM designation
source name
Common problems & symptoms
Problems and symptoms reported for this transmission, compiled from repair sources. Not a complete list.
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Governor wear and failure
Governor on output shaft wears out, disrupting shifting pressure regulation and gear shift points based on vehicle speed
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Clutch hub niche wear
Niches for plastic rings on the last clutch hub wear out, a known weak point in the 3HP22 transmission.
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Governor pressure loss
Loss of governor pressure caused by worn clutch hub niches or governor failure, affecting shift timing and quality.
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Incorrect gear shift points
Gear shifting occurs at wrong vehicle speeds due to governor malfunction disrupting shift pressure regulation.
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About this transmission
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.
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.
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