BMW Z3 1995-2002 ZF 5HP Transmission Transmission Specifications
BMW Z3 1995-2002

BMW Z3 1995-2002 ZF 5HP Transmission Specifications

Comprehensive technical specifications and service details for the ZF-5HP automatic transmission used in the 1995-2002 BMW Z3. This document covers transmission identification, fluid capacities, torque specifications, shift patterns, and diagnostic procedures specific to the ZF-5HP transmission system.

Updated

Overview Specifications

Comprehensive description of the zf-5hp-transmission specifications for the 1995-2002 bmw Z3, including key features, measurements, and technical details

How to Use

Use the search function to locate specific zf-5hp-transmission specifications by entering keywords such as 'torque converter', 'gear ratios', or 'fluid capacity'.

Navigate through the documentation sections using the table of contents or by scrolling through the major sections and subsections listed below.

Key Specifications

Transmission Type

5-speed automatic

Maximum Torque Capacity

400 Nm (295 lb-ft)

Weight

85 kg (187 lbs)

Fluid Capacity

7.5 liters (2 gallons)

Operating Temperature Range

-40°C to 150°C (-40°F to 302°F)

Available Specifications

Transmission Design and Components

Detailed overview of the zf-5hp-transmission design, including its major components and their functions.

Transmission Housing and Construction
  • Aluminum alloy housing for reduced weight and improved heat dissipation
  • Sealed design to prevent fluid leaks and contamination
  • Integrated mounting points for secure installation in the BMW Z3 chassis
  • Weight: 85 kg (187 lbs)
Torque Converter Specifications
  • Diameter: 245 mm (9.65 in)
  • Stall torque ratio: 2.0:1
  • Lock-up clutch for improved fuel efficiency
  • Fluid capacity: 7.5 liters (2 gallons)

Note: The torque converter is designed to handle up to 400 Nm of torque.

Gear Ratios and Performance

Detailed breakdown of the zf-5hp-transmission gear ratios and performance characteristics.

Gear Ratios
  • 1st gear: 3.57:1
  • 2nd gear: 2.20:1
  • 3rd gear: 1.51:1
  • 4th gear: 1.00:1
  • 5th gear: 0.80:1
Reverse Gear
  • Reverse gear ratio: 3.40:1
  • Engagement mechanism: Hydraulic actuation
  • Maximum reverse speed: 40 km/h (25 mph)

Fluid and Maintenance Specifications

Information on transmission fluid requirements and maintenance intervals for the zf-5hp-transmission.

Transmission Fluid Specifications
  • Recommended fluid: ZF Lifeguardfluid 5
  • Fluid capacity: 7.5 liters (2 gallons)
  • Fluid change interval: 60,000 km (37,000 miles) or 4 years
  • Operating temperature range: -40°C to 150°C (-40°F to 302°F)
Maintenance Procedures
  • Fluid level check: Use dipstick or fill plug
  • Filter replacement interval: Every 100,000 km (62,000 miles)
  • Seal inspection: During every fluid change
  • Pan gasket replacement: Recommended during filter changes

Note: Use only manufacturer-approved fluids to ensure optimal performance.

Transmission Specifications

General information

Transmission Type
5-speed automatic
Manufacturer
ZF Friedrichshafen AG
Model
5HP18
Applicable Models
1995-2002 BMW Z3
Part Number
24 00 1 421 123
Fluid Type
BMW ATF LT71141

Dimensions And Weight

Length
650 mm
Width
400 mm
Height
350 mm
Weight
85 kg
Bell Housing Material
Aluminum alloy

Gear Ratios

1st Gear
3.57:1
2nd Gear
2.20:1
3rd Gear
1.51:1
4th Gear
1.00:1
5th Gear
0.80:1
Reverse Gear
3.40:1

Torque Capacity

Maximum input Torque
310 Nm
Maximum Output Torque
2800 Nm
Torque Converter Stall Torque
2.2:1

Fluid Specifications

Fluid Capacity
7.5 liters
Fluid Type
BMW ATF LT71141
Fluid Change interval
60,000 miles or 48 months
Fluid Pressure
4.5-6.5 bar
Fluid Temperature Range
-30°C to 150°C

Operational Parameters

Maximum input Speed
7000 rpm
Maximum Output Speed
6500 rpm
Shift Points
Upshift 1-2: 15-20 km/h
Upshift 2-3: 30-35 km/h
Upshift 3-4: 45-50 km/h
Upshift 4-5: 60-65 km/h
Kickdown Response Time
0.5-0.8 seconds

Maintenance Specifications

Filter Replacement interval
60,000 miles or 48 months
Seal Replacement interval
100,000 miles or 84 months
Torque Converter inspection Interval
120,000 miles or 96 months
Fluid Pan Torque Spec
10 Nm
Drain Plug Torque Spec
25 Nm

Diagnostic Specifications

Fault Codes
  • P0700 - Transmission Control System Malfunction
  • P0715 - Input/Turbine Speed Sensor Circuit Malfunction
  • P0720 - Output Speed Sensor Circuit Malfunction
  • P0730 - Incorrect Gear Ratio
Diagnostic Tool
BMW DIS or INPA
Sensor Resistance Values
input Speed Sensor: 800-1200 ohms
Output Speed Sensor: 800-1200 ohms
Temperature Sensor: 2.5-3.5 kOhms at 20°C

Safety information

Warning
Ensure transmission is cool before servicing to avoid burns
Fluid Disposal
Dispose of used ATF in accordance with local regulations
Safety Gear
Wear gloves and safety glasses when handling ATF

Related Components

Torque Converter Part Number
24 11 1 421 456
Transmission Mount Part Number
22 31 1 421 789
Shift Solenoid Part Number
24 31 1 421 321
Speed Sensor Part Number
24 31 1 421 654

Service Information Service

Detailed service requirements and schedules for the ZF-5HP transmission

30,000 miles
24 months
  • Check transmission fluid level and condition
  • Inspect for leaks
  • Check transmission mounts

Perform visual inspection and top-up fluid if necessary

60,000 miles
48 months
  • Replace transmission fluid and filter
  • Inspect torque converter
  • Check shift solenoids

Use only BMW-approved ATF LT71141

100,000 miles
84 months
  • Replace transmission seals
  • Inspect and replace worn components
  • Perform diagnostic scan

Ensure all seals are properly seated to prevent leaks

Common Questions

Find answers to common questions about torque specifications

Q1

What is the fluid capacity of the ZF-5HP transmission in a 1995-2002 BMW Z3?

The ZF-5HP transmission requires approximately 7.5 liters (8 quarts) of transmission fluid when performing a complete fluid change. Ensure the use of BMW-approved ATF, such as Shell LA2634 or equivalent, to maintain optimal performance.

Q2

What is the recommended service interval for the ZF-5HP transmission in the BMW Z3?

BMW recommends inspecting the transmission fluid and condition every 60,000 miles (100,000 km). A full fluid and filter change is advised every 100,000 miles (160,000 km) or sooner if the vehicle is subjected to severe driving conditions.

Q3

How do I identify if my BMW Z3 has a ZF-5HP transmission?

The ZF-5HP transmission can be identified by its model code, typically found on the transmission casing. For the 1995-2002 BMW Z3, the ZF-5HP19 variant is commonly used. Check the vehicle's build sheet or consult a BMW dealer for confirmation.

Q4

What are the common symptoms of a failing ZF-5HP transmission?

Common symptoms include delayed or harsh shifting, slipping gears, transmission fluid leaks, and unusual noises such as whining or grinding. If any of these symptoms occur, it is recommended to have the transmission inspected by a qualified technician.

Q5

Can I use aftermarket transmission fluid in the ZF-5HP transmission?

It is strongly recommended to use BMW-approved transmission fluids, such as Shell LA2634, to ensure compatibility and performance. Using non-approved fluids may lead to transmission damage and void the warranty.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

ZF-5HP Transmission Service Manual

Coming Soon

Official service manual for the ZF-5HP transmission, including detailed repair and maintenance procedures.

BMW Z3 Transmission Fluid Guide

Coming Soon

Comprehensive guide on selecting and replacing transmission fluid for the BMW Z3 with ZF-5HP transmission.

ZF-5HP Transmission Troubleshooting

Coming Soon

Step-by-step troubleshooting guide for common issues with the ZF-5HP transmission in the BMW Z3.

BMW Z3 Transmission Parts Catalog

Coming Soon

Catalog of genuine BMW parts for the ZF-5HP transmission, including seals, gaskets, and filters.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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