ZF 4HP transmission

4HP 20 · 4HP 22 · 4HP 24 4HP 14 · 4HP 16 · 4HP 18
Overview
Manufacturer	ZF Friedrichshafen
Production	1980 – 2003
Model years	1980 – 2003
Body and chassis
Class	4-Speed Longitudinal and transverse Automatic Transmission
Chronology
Predecessor	ZF 3HP Transmission Family
Successor	ZF 5HP Transmission Family

The 4HP is a four-speed Automatic transmission family with a hydrodynamic Torque converter with an electronic hydraulic control for passenger cars from ZF Friedrichshafen AG. In selector level position "P", the output is locked mechanically. The Simpson planetary gearset types were first introduced in 1980, the Ravigneaux planetary gearset types in 1984 and produced through 2003 in different versions and were used in a large number of vehicles.

1980: Simpson Planetary Gearset Types

The 4HP 20 was introduced in 1995 and has been used in a variety of cars from Citroën, Lancia, Mercedes-Benz, Peugeot, and Renault. ^[1] The maximum torque capacity is 330  N⋅m (243  lb⋅ft ).

The 4HP 22 was produced for vehicles with rear wheel drive or 4X4 layout. Introduced in 1980, it was produced through 2003, and has been used in a variety of cars from BMW, General Motors, Jaguar, Land Rover, Maserati, Peugeot, Porsche, and Volvo.

The 4HP 24 was introduced in 1987 and was used in a variety of cars from Audi, BMW, Jaguar, and Land Rover.

1984: Ravigneaux Planetary Gearset Types

The 4HP 14 was introduced in 1984 and produced through 2001 for Citroën, Peugeot, and Daewoo Front-wheel drive vehicles. The electronic-hydraulic control makes controlled power shifts and various shift programs possible.

The 4HP 16 is designed for use in vehicles with Front-wheel drive and a Transverse engine. The transmission is operated via selector lever and possibly also via switch. It has a controller slip Lock-up clutch.

The 4HP 18 is for both longitudinal and transverse installation. Introduced in 1987, and produced through 1998, it was used in a variety of cars from Alfa Romeo, Audi, Citroën, Dodge, Eagle, Fiat, Lancia, Porsche and Saab.

Specifications

Nomenclature

Position	Value	German	Meaning
4HP 22FLE	4	Number of Gears
4HP 22FLE	H	Hydraulische Kupplung	Hydraulic Clutch
4HP 22FLE	P	Planeten- radsätze	Planetary Gearsets
4HP 22FLE		Torque Class
4HP 22FLE	F H	Front- motor Heck- motor	Front-Engine Design Rear-Engine Design
4HP 22FLE	L Q	Längs- motor Quer- motor	Longitudinal Engine Transverse Engine
4HP 22FLE	E A	Elektronische Steuerung Allrad- antrieb	Electronic Control Four-Wheel Drive

1980: Simpson Planetary Gearset Types

Gear Teeth and Ratios [lower-alpha 1]		Planetary Gearset Teeth [lower-alpha 2]			Count	Total	Avg.
		Simpson		Simple
Model Type	Version First Delivery	${\displaystyle S_{1}}$ [lower-alpha 3] ${\displaystyle R_{1}}$ [lower-alpha 4]	${\displaystyle S_{2}}$ [lower-alpha 5] ${\displaystyle R_{2}}$ [lower-alpha 6]	${\displaystyle S_{3}}$ [lower-alpha 7] ${\displaystyle R_{3}}$ [lower-alpha 8]	Brakes Clutches	Ratio Span	Gear Step
Gear ${\displaystyle n}$		R		1	2	3	4
Step ${\displaystyle i_{n-1}/i_{n}}$		–R : 1			1 : 2	2 : 3	3 : 4
4HP 22 Big Engines	380  N⋅m (280  lb⋅ft ) 1980	35 73	35 73	31 83	4 3	3.4055	1.5045
Ratio ${\displaystyle i_{n}}$		−2.0857 ${\displaystyle -{\tfrac {73}{35}}}$		2.4795 ${\displaystyle {\tfrac {181}{73}}}$	1.4795 ${\displaystyle {\tfrac {108}{73}}}$	1.0000 ${\displaystyle {\tfrac {1}{1}}}$	0.7281 ${\displaystyle {\tfrac {83}{114}}}$
Step		0.8412			1.6759	1.4795	1.3735
4HP 22 Small Engines	220  N⋅m (162  lb⋅ft ) 1980	35 73	41 73	31 83	4 3	3.7539	1.5541
Ratio ${\displaystyle i_{n}}$		−2.0857 ${\displaystyle -{\tfrac {73}{35}}}$		2.7331 ${\displaystyle {\tfrac {6,983}{2,555}}}$	1.5616 ${\displaystyle {\tfrac {114}{73}}}$	1.0000 ${\displaystyle {\tfrac {1}{1}}}$	0.7281 ${\displaystyle {\tfrac {83}{114}}}$
Step		0.7631			1.7501	1.5616	1.3735
Ratio		${\displaystyle -{\tfrac {R_{1}}{S_{1}}}}$	${\displaystyle {\tfrac {S_{1}(S_{2}+R_{2})+R_{1}S_{2}}{S_{1}R_{2}}}}$		${\displaystyle {\tfrac {S_{2}+R_{2}}{R_{2}}}}$	${\displaystyle {\tfrac {1}{1}}}$	${\displaystyle {\tfrac {R_{3}}{S_{3}+R_{3}}}}$

1. Differences in gear ratios have a measurable, direct impact on vehicle dynamics, performance, waste emissions as well as fuel mileage
2. Layout
   (1) Planetary gearset 1 is on the input (turbine) side
   (2) Output shaft is ring 3 (ring gear of gearset 3)
3. Sun gear of gearset 1
4. Ring gear of gearset 1
5. Sun gear of gearset 2
6. Ring gear of gearset 2
7. Sun gear of gearset 3
8. Ring gear of gearset 3

1984: Ravigneaux Planetary Gearset Types

Gear Teeth and Ratios [lower-alpha 1]		Planetary Gearset Teeth [lower-alpha 2] Ravigneaux		Count	Total	Avg.
Model	Version First Delivery	${\displaystyle {S_{1}}}$ [lower-alpha 3] ${\displaystyle {R_{1}}}$ [lower-alpha 4]	${\displaystyle {S_{2}}}$ [lower-alpha 5] ${\displaystyle {R_{2}}}$ [lower-alpha 6]	Brakes Clutches	Ratio Span	Gear Step
Gear	R		1	2	3	4
Step ${\displaystyle i_{n-1}/i_{n}}$	–R : 1			1 : 2	2 : 3	3 : 4
4HP 14	1984	34 29 [lower-alpha 7]	29 82	2 3	3.2647	1.4835
Ratio ${\displaystyle i_{n}}$	−2.8276 ${\displaystyle -{\tfrac {82}{29}}}$		2.4118 ${\displaystyle {\tfrac {41}{17}}}$	1.3688 ${\displaystyle {\tfrac {861}{629}}}$	1.0000 ${\displaystyle {\tfrac {1}{1}}}$	0.7387 ${\displaystyle {\tfrac {82}{111}}}$
Step	1.1724			1.7619	1.3688	1.3537
4HP 18	FLE 1991	38 34 [lower-alpha 7]	34 98	2 3	3.4737	1.5145
Ratio ${\displaystyle i_{n}}$	−2.8824 ${\displaystyle -{\tfrac {49}{17}}}$		2.5789 ${\displaystyle {\tfrac {49}{19}}}$	1.4067 ${\displaystyle {\tfrac {294}{209}}}$	1.0000 ${\displaystyle {\tfrac {1}{1}}}$	0.7424 ${\displaystyle {\tfrac {49}{66}}}$
Step	1.1176			1.8333	1.4067	1.3469
Ratio	${\displaystyle -{\tfrac {R_{2}}{S_{2}}}}$		${\displaystyle {\tfrac {R_{1}R_{2}}{S_{1}S_{2}}}}$	${\displaystyle {\tfrac {R_{2}(S_{1}+R_{1})}{S_{1}(S_{2}+R_{2})}}}$	${\displaystyle {\tfrac {1}{1}}}$	${\displaystyle {\tfrac {R_{2}}{S_{2}+R_{2}}}}$

1. Differences in gear ratios have a measurable, direct impact on vehicle dynamics, performance, waste emissions as well as fuel mileage
2. Layout
   Output shaft is ring 2 (ring gear of outer Ravigneaux gearset part)
3. Sun 1: sun gear of gearset 1: inner Ravigneaux gearset
4. Ring 1: ring gear of gearset 1: inner Ravigneaux gearset
5. Sun 2: sun gear of gearset 2: outer Ravigneaux gearset
6. Ring 2: ring gear of gearset 2: outer Ravigneaux gearset
7. inner and outer sun gears of the Ravigneaux planetary gearset are inverted

Applications

1980: Simpson Planetary Gearset Types

4HP 20

Front-engine design · Transverse engine · Front-wheel drive configuration ^[1]

• 1996–2004 Peugeot 406 V6 3.0
• 1996–2003 Mercedes-Benz Vito
• 1996–2003 Mercedes-Benz V-Class
• 1997–2001 Citroën Xantia V6 2.9
• 1997–2001 Citroën XM V6 2.9
• 1997–1999 Peugeot 605 V6 2.9
• 1998–2002 Alfa Romeo 166 V6 2.5, V6 3.0
• 1998–2005 Lancia Kappa, Phedra V6 3.0
• 1998–2008 Renault Laguna 3.0
• 1998–2002 Renault Espace V6 3.0
• 1999–2000 Renault Safrane V6 3.0 24V
• 2001–2008 Citroën C5 and Citroën C8 V6 2.9, Peugeot 807 V6 2.9 and Peugeot 607 with DW12 2.2 HDi
• 2004–2010 Peugeot 407 with DW12 2.2 HDi
• 2003–2006 Fiat Ducato 2.8 JTD (244 Series)

4HP 22

Longitudinal engine design · Rear-wheel drive configuration ^[1]

• BMW
  • E30
    • 1984–1988 316 M10/B18
    • 1987–1988 316i M10/B18
    • 1988–1994 316i M40/B16
    • 1984–1987 318i M10/B18
    • 1987–1994 318i M40/B18
    • 1982–1993 320i M20/B20
    • 1982–1986 323i M20/B23
    • 1985–1990 324d M21/D24
    • 1987–1990 324td M21/D24
    • 1983–1988 325e M20/B27: ^[2] Type A
    • 1985–1993 325i M20/B25: ^[2] Type A
    • 1986–1992 325ix M20/B25: ^[2] Type A
  • E28
    • 1981–1987 518i M10/B18: ^[3] Type B
    • 1981–1987 520i M20/B20: ^[3] Type B
    • 1986–1988 524d M21/D24: ^[3] Type B
    • 1983–1987 524td M21/D24: ^[3] Type B
    • 1983–1988 525e M20/B27: ^[3] Type A
    • 1981–1987 525i M30/B25: ^[3] Type A
    • 1981–1987 528e M20/B27
    • 1981–1987 528i M30/B28: ^[3] Type A
    • 1983–1984 533i M30/B32
    • 1984–1988 535i M30/B34: ^[3] Type A
  • E24
    • 1983–1989 633CSi M30/B32
    • 1983–1987 635CSi M30/B34
  • E23
    • 1983–1984 733i M30/B32
    • 1984–1987 735i M30/B34: ^[4] Type A
    • 1984–1987 745i (South African version) M88/3: ^[5] Type A
  • E34
    • 1988–1992 520i M20/B20: Type A
    • 1988–1992 524td M21/D24: ^[6] Type B
    • 1988–1990 525i M20/B25: Type A
    • 1988–1992 530i M30/B30: Type A
    • 1988–1993 535i M30/B35: ^[6] Type A
  • E32
    • 1986–1994 730i M30/B30: ^[7] Type A
    • 1986–1992 735i M30/B35: ^[7] Type A
    • 1986–1992 735iL M30/B35: ^[7] Type A
• Chevrolet
  • Opala
    • 1988–1992 2.5 (151): ^{[8] [9]} Type A
    • 1988–1992 4.1 (250): ^{[8] [9]} Type A
• Jaguar
  • XJ40
    • 1987–1993 3.6
  • X300
    • 1994–1997 3.2
  • XJS
    • 1987–1991 3.6
• Land Rover
  • Defender
    • 1997 90 V8 4.0 L North America Spec
    • 1998 90 V8 4.0 L Defender 50th Special Edition
  • Discovery (Series I)
    • 1992–1999 V8 3.9 L
  • Discovery (Series II)
    • 1999–2002 V8 4.0 L
  • Range Rover
    • 1987–2002 (except 4.6 L)
• Lincoln
  • Continental
    • 1984–1985 2.4 L (BMW-Steyr turbodiesel)
• Lotus
  • Lotus Excel
    • Excel SA 1986 –1991 Twin Cam 4 Cyl Lotus 2.2 L 180 bhp
• 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 ^{[10] [11] [12]} ): Type A
    • 1986–1997 2.0 (ZEJ ^{[10] [12]} ): Type A
    • 1986–1997 2.2 (N9T ^[12] ): Type A
    • 1986–1997 2.2 (ZDJ ^{[10] [11] [12] [13]} ): Type A
    • 1986–1997 2.5 (XD3 ^{[11] [14]} ): Type A
    • 1986–1997 2.8 (ZN3J ^[12] ): Type A
  • 604
    • 1987–1989 2.5
• Volvo
  • 740
    • 1984–1985 GL, GLE 2.3 (non turbo) B230F: ^[15] Type B
    • 1986–after GL, GLE 2.3 (non turbo) B230F: ^[16] Type A
    • 1984–1987 2.4 L Turbo-Diesel D24T ^[17]
  • 760
    • 1986–1991 2.3 L
    • 1985–1989 2.3 Turbo B230ET
    • 1983–1989 GLE 2.4 Turbo-Diesel D24T/D24TIC ^[18]
  • 940
    • 1990–1994 2.3 (non turbo, Europe & Australia) B230FB
    • 1990–1998 2.4 L Turbo-Diesel D24TIC

4HP 22EH

Longitudinal engine design · Four-wheel drive configuration ^[1]

• Land Rover
  • Discovery (Series II)
    • 1999–2004 TD5 Diesel

4HP 22HL

Rear-engine design · Longitudinal engine orientation · Rear-wheel drive configuration ^[1]

• Porsche
  • 1989–1993 Porsche 911 Carrera II 3.6
  • 1993–1998 Porsche 993 3.6

4HP 24

Longitudinal engine design · Rear-wheel drive configuration ^[1]

• 1986–1994 BMW E32 750i M70/B50
• 1986–1994 BMW E32 750iL M70/B50
• 1986–1994 Jaguar XJ40
• 1989–1994 BMW E31 850Ci M70/B50
• 1989–1994 BMW E31 850i M70/B50
• 1989–1996 Jaguar XJS 4.0
• 1995–1997 Jaguar XJ6 (X300) 4.0
• 1994–2002 Range Rover V8 4.6 L
• 1999–2002 Range Rover V8 4.0 L
• 2003–2004 Land Rover Discovery V8 4.6 L

4HP 24A

Longitudinal engine design · Four-wheel drive version ^[1]

• 1990–1991 Audi V8 3.6 V8
• 1992–1994 Audi V8 4.2 V8
• 1994–1996 Audi D2 A8 4.2 V8 quattro
• 1995–1997 Audi S6 4.2 V8 C4 100

1984: Ravigneaux Planetary Gearset Types

4HP 14

Front-engine design

• 1984–1993 Citroën BX 1.6
• 1985–1993 Citroën BX 1.9
• 1987–1993 Peugeot 205 1.6
• 1987–1993 Peugeot 205 1.9
• 1987–1989 Peugeot 305 1.5
• 1987–1996 Peugeot 309 1.6 ^[19]
• 1987–1996 Peugeot 309 1.9
• 1987–1997 Peugeot 405 1.6
• 1987–1997 Peugeot 405 1.8
• 1987–1997 Peugeot 405 1.9
• 1990–1996 Volvo 400 series ^[20]
• 1991–1998 Rover 800 (XX/R17)
• 1992–1993 Citroën ZX 1.6
• 1992–1998 Citroën ZX 1.8
• 1993–1998 Citroën Xantia 1.8
• 1993–1998 Citroën Xantia 2.0
• 1993–2001 Peugeot 306 1.8
• 1993–2001 Peugeot 306 2.0
• 1996–1997 Daewoo Nubira 1.5
• 1996–1997 Daewoo Nubira 1.8
• 1996–1997 Daewoo Leganza 1.8
• 1996–1997 Daewoo Leganza 2.0

4HP 18FL

Front-engine design · Longitudinal engine ^{[1] [21]}

• 1988–1992 Renault 25 V6 2.8
• 1988–1992 Eagle Premier/Dodge Monaco V6 3.0

4HP 18FLA · Audi Quattro 4x4

Front-engine design · longitudinal engine · quattro Four-wheel drive ^[1]

• 1992–1994 Audi S4 (C4) 5-cyl 2.2 Turbo
• 1992–1994 Audi 100 (C4) CS 2.8 V6
• 1995–1997 Audi A6 (C4) quattro 2.8 V6
• 1995–1997 Audi S6 (C4) quattro 5-cyl 2.2 Turbo

4HP 18FLE · Audi FWD

Front-engine design · Longitudinal engine · (non-quattro) ^{[1] [22]}

• 1991–1994 Porsche 968 4-cyl 3.0
• 1992–1993 Audi 100 2.8 V6
• 1992–1994 Audi 100 CS 2.8 V6
• 1992–1994 Audi 100 S 2.8 V6
• 1995–1997 Audi A6 2.8 V6
• 1995–1997 Audi A6 2.5 TDI (AEL) (AAT)

4HP 18Q

Front-engine design · Transverse engine · Front-wheel drive ^[1]

• 1987–1989 Fiat Croma 2.0
• 1987–1989 Fiat Croma 2.5
• 1987–1998 Saab 9000
• 1989–1993 Alfa Romeo 164 V6 3.0
• 1989–1998 Citroën XM 2.0
• 1989–1998 Citroën XM V6 3.0
• 1989–1994 Fiat Croma 2.0
• 1989–1994 Lancia Thema 2.0
• 1989–1992 Lancia Thema V6 3.0
• 1989–1999 Peugeot 605 2.0
• 1989–1999 Peugeot 605 V6 3.0

4HP 18QE

Front-engine design · Transverse engine · Front-wheel drive ^[1]

• 1993–1997 Alfa Romeo 164 V6 3.0
• 1993–1994 Lancia Thema V6 3.0

4HP 18EH

Front-engine design · Transverse engine · Front-wheel drive ^[1]

• 1994–1998 Lancia Kappa V6 3.0

See also

• List of ZF transmissions

References

1. "ZF North America Application Chart (automatic)" (PDF). ZF-Group.com. Archived from the original (PDF) on 4 January 2006. Retrieved 11 February 2006.
2. "BMW E30 3 Series Specifications".
3. "BMW E28 Specifications".
4. "BMW E23 735i user manual, PDF p. 125" (PDF).
5. "South African version BMW E23 745i user manual, PDF p. 117" (PDF).
6. "BMW E34 user manual, 1989, p. 111". Archived from the original on June 29, 2013.
7. "BMW E32 user manual, PDF p. 51" (PDF).
8. "Chevrolet Opala Specifications".
9. "Chevrolet Opala Original table of gear ratios". Archived from the original on May 8, 2014.
10. A. K. Legg, Peugeot 505 Owners Workshop Manual, Haynes Publishing Group, 1989, ISBN   0-85696-762-9, p. 132
11. Octavio Trentini, Reparación y ajuste de automoviles Peugeot 505, Cosmopolita publisher, 1995, ISBN   950-9069-69-8, p. 148, 149
12. Peugeot 505 User manual, Peugeot, 1987, Paris, p. 146, 147
13. Peugeot 505 User manual, Peugeot, 1987, Madrid, p. 109
14. Peugeot 505 User manual, Peugeot, 1987, Madrid, p. 131
15. "Volvo 740 User manual, 1985".
16. "Volvo 740 User manual, 1986, PDF p. 126, 127" (PDF).
17. Volvo 240-740-760 Essence, Diesel (in French). France: Revue Technique Automobile. pp. 5–6. ISBN   978-2726847947.
18. "Volvo 760 GLE user manual, 1984, PDF p. 110" (PDF).
19. "Peugeot 309 1987 Automatic brochure". Peugeot.
20. "Vraagbaak Volvo 440/460/480 Benzinemodellen" by P.H. Olving, April 2011, ISBN   9789021534091
21. Transmissions Parts catalogue : https://global-uploads.webflow.com/5d4ad27f935075baaeb45f60/5fb67c61d98f56954b343a33_2020.11.18%20APC%20Catalog%20without%20images.pdf
22. 4HP18 FLA Transmission filter : https://www.allomatic.com/transmission-filters/515426

External links

• "ZF North America Application Chart (automatic)" (PDF). ZF-Group.com. Archived from the original (PDF) on 4 January 2006. Retrieved 11 February 2006.