ZF 4HP22 transmission

Torque

The ZF 4HP22 can handle from 100 to 380 NM of input torque.

4HP22

Austin

Austin Tempest

1997–2002 4.0

BMW

E30

1984–1985 318i M10/B18

1984–1985 323i M20/B23

1983–1988 325e M20/B27: Type A

1986–1992 325i M20/B25: Type A

1987–1991 325ix M20/B25: Type A

E28

1981–1987 518i M10/B18: Type B

1981–1987 520i M20/B20: Type B

1986–1988 524d M21/D24: Type B

1983–1987 524td M21/D24: Type B

1983–1988 525e M20/B27: Type A

1981–1987 525i M30/B25: Type A

1981–1987 528e M20/B27

1981–1987 528i M30/B28: Type A

1983–1984 533i M30/B32

1984–1988 535i M30/B34: Type A

E24

1983–1989 633CSi M30/B32

1983–1987 635CSi M30/B34

E23

1983–1984 733i M30/B32

1984–1987 735i M30/B34: Type A

1984–1987 745i (South African version) M88/3: Type A

E34

1988–1992 520i M20/B20, M50/B20: Type A

1988–1992 524td M21/D24: Type B

1988–1992 525i M20/B25, M50/B25: Type A

1988–1992 530i M30/B30, M60/B30: Type A

1988–1993 535i M30/B35: Type A

E32

1986–1994 730i M30/B30: Type A

1986–1992 735i M30/B35: Type A

1986–1992 735iL M30/B35: Type A

Chevrolet

Opala

1988–1992 2.5 (151): Type A

1988–1992 4.1 (250): Type A

Jaguar

XJ40

1987–1993 3.6

X300

1994–1997 3.2

XJS

Jaguar xj6 1994-1997

1987–1997 3.6

Land Rover

Defender

1997 90 V8 4.0L North America Spec

1998 90 V8 4.0L Defender 50th Special Edition

Discovery (Series I)

1992–1999 V8 3.9L

Discovery (Series II)

1999–2002 V8 4.0L

Range Rover

1987–2002 (except 4.6)

Lincoln

Continental

1984–1985 2.4 litre (BMW-Steyr turbodiesel)

Maserati

Biturbo

1988–1997 2.5 V6

1988–1997 2.8 V6

Quattroporte

1994–1998 2.8 V6

Peugeot

505

1986–1997 2.0 (XN,): Type A

1986–1997 2.0 (ZEJ): Type A

1986–1997 2.2 (N9T,): Type A

1986–1997 2.2 (ZDJ): Type A

1986–1997 2.5 (XD3): Type A

1986–1997 2.8 (ZN3J): Type A

604

1987–1989 2.5

Volvo

740

pre–1985 GL, GLE 2.3 (non turbo) B230F: Type B

1986–after GL, GLE 2.3 (non turbo) B230F: Type A

1984–1986 2.4L TD (ZF 4HP22L)

760

1986–1991 2.3L

1983–1986 GLE 2.4 Turbo Diesel D24T: Type B

940

1991–1995 2.3

4HP22EH

Four-wheel drive configuration

Land Rover

Discovery (Series II)

1999–2004 TD5 Diesel

4HP22HL

Rear-engine design rear-wheel drive configuration

Porsche

1989–1993 Porsche 911 Carrera II 3.6

1993–1998 Porsche 993 3.6

4HP22 failures

The 4HP22 transmission can be rendered undriveable when held on P or N setting and too high engine rotation speed is applied for too long, for instance during emissions testing. Examples of situations that could lead to transmission failure include warming up the catalytic converter on petrol engine-powered vehicle with too high RPM, or while measuring amount of smoke on diesel engine-powered vehicle and keeping the throttle full for too long time. The correct procedure would be to stop the engine for at least 90 seconds, do the test (without selecting again D or R, this means without re-pressurizing the gearbox) for no longer than a minute, and if the procedure must be repeated, stop again for at least 90 seconds and repeat. Another issue is the governor valve sticking, which can be caused by contamination. i.e. clutch plates or other parts disintegrating. The fine debris finds its way past the filter and tends to accumulate in the governor, causing it to stick. A temporary solution is to remove and clean the governor. The problem will often recur as debris from damaged parts continues to build up in the governor. If the problem continues after cleaning the governor then it may be necessary it replace the autobox. Usual symptoms are failing to shift after 1st gear while the gearbox is still cold, and then failing to kickdown to 1st while at a stop. The governor is located at the end of the gearbox and usually it starts to work again after a cleanup.