ZF 4HP transmission

(Redirected from ZF 4HP18 transmission)

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.

4HP 20 · 4HP 22 · 4HP 24
4HP 14 · 4HP 16 · 4HP 18
Overview
ManufacturerZF Friedrichshafen
Production1980 – 2003
Model years1980 – 2003
Body and chassis
Class4-Speed Longitudinal and transverse Automatic Transmission
Chronology
PredecessorZF 3HP Transmission Family
SuccessorZF 5HP Transmission Family

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

PositionValueGermanMeaning
4HP 22FLE4Number of Gears
4HP 22FLEHHydraulische
Kupplung
Hydraulic
Clutch
4HP 22FLEPPlaneten-
radsätze
Planetary
Gearsets
4HP 22FLETorque Class
4HP 22FLEF

H
Front-
motor
Heck-
motor
Front-Engine
Design

Rear-Engine
Design
4HP 22FLEL

Q
Längs-
motor
Quer-
motor
Longitudinal
Engine

Transverse
Engine
4HP 22FLEE

A
Elektronische
Steuerung
Allrad-
antrieb
Electronic
Control
Four-Wheel
Drive

1980: Simpson Planetary Gearset Types

Gear Teeth and Ratios[a]Planetary Gearset
Teeth[b]
CountTotalAvg.
SimpsonSimple
Model
Type
Version
First Delivery
[c]
[d]
[e]
[f]
[g]
[h]
Brakes
Clutches
Ratio
Span
Gear
Step
Gear R1234
Step
–R : 11 : 22 : 33 : 4
4HP 22
Big Engines
380 N⋅m (280 lb⋅ft)
1980
35
73
35
73
31
83
4
3
3.40551.5045
Ratio
−2.0857
2.4795
1.4795
1.0000
0.7281
Step0.84121.67591.47951.3735
4HP 22
Small Engines
220 N⋅m (162 lb⋅ft)
1980
35
73
41
73
31
83
4
3
3.75391.5541
Ratio
−2.0857
2.7331
1.5616
1.0000
0.7281
Step0.76311.75011.56161.3735
Ratio

1984: Ravigneaux Planetary Gearset Types

Gear Teeth
and Ratios[a]
Planetary Gearset
Teeth[b] Ravigneaux
CountTotalAvg.
ModelVersion
First Delivery
[c]
[d]
[e]
[f]
Brakes
Clutches
Ratio
Span
Gear
Step
GearR1234
Step
–R : 11 : 22 : 33 : 4
4HP 14198434
29[g]
29
82
2
3
3.26471.4835
Ratio
−2.8276
2.4118
1.3688
1.0000
0.7387
Step1.17241.76191.36881.3537
4HP 18FLE
1991
38
34[g]
34
98
2
3
3.47371.5145
Ratio
−2.8824
2.5789
1.4067
1.0000
0.7424
Step1.11761.83331.40671.3469
Ratio

Applications

1980: Simpson Planetary Gearset Types

4HP 20

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

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
  • Jaguar
    • XJ40
      • 1987–1993 3.6
    • X300
      • 1994–1997 3.2
    • XJS
      • 1987–1991 3.6
  • Land Rover
  • Lincoln
  • Lotus
    • Lotus Excel
      • Excel SA 1986 –1991 Twin Cam 4 Cyl Lotus 2.2 L 180 bhp
  • Maserati
  • Peugeot
  • 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]

4HP 22HL

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

4HP 24

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

4HP 24A

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

1984: Ravigneaux Planetary Gearset Types

4HP 14

Front-engine design

4HP 16

4HP 18FL

Front-engine design · Longitudinal engine[1][21]

4HP 18FLA · Audi Quattro 4x4

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

4HP 18FLE · Audi FWD

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

4HP 18Q

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

4HP 18QE

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

4HP 18EH

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

See also

References