Automotive / Engine Components
Repair Manual for Audi Rear Final Drive 0BF/0BE Sport Differential
Comprehensive repair manual for Audi 0BF and 0BE Sport Differential. Includes detailed procedures for driveshaft removal, hydraulic control unit service, oil and ATF maintenance, and component replacement.
Quick answers from the manual
Quick answer
- This manual provides technical instructions for the repair, maintenance, and component replacement of the Audi 0BF and 0BE Sport Differential rear final drive systems. p. 1, 3
Key actions
- Checking and filling gear oil and ATF levels. p. 75, 77, 79, 81
- Removing and installing the rear final drive. p. 59, 60, 66, 70
- Replacing flange shaft seals. p. 86, 88, 93, 98
Problems and fixes
Noises or vibrations
Check the intermediate bearing for tension before replacing the driveshaft.
p. 22, 33Maintenance and reset
- Adaptation of All Wheel Drive Control Module J492 after replacement. p. 18, 41, 45
- Adaptation of sensors (G437/G640) after replacement. p. 18, 57, 59
- Adaptation of rear final drive after replacement. p. 73, 77
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Driveshaft flange diameter | 75.5 mm (most models) or 68 mm (0BE MKL) | Diameter of the driveshaft flange. | p. 7, 15 |
| Driveshaft bolt torque | 30 Nm + 90° | Tightening specification for driveshaft bolts. | p. 23, 24, 35 |
Where to find it in the PDF
- General Technical Data p. 1, 17
- Final Drive and Differential Repair p. 18, 111
Table of contents
Quick Guide for Repair
This manual provides technical information for the repair and maintenance of the Audi 0BF and 0BE Sport Differential. All work must be performed by qualified personnel. Key procedures include driveshaft removal, hydraulic control unit service, and fluid maintenance. Always verify the final drive code and PR number in the Parts Catalog before beginning any repair to ensure correct allocation.
Identification and Allocation
The 0BF and 0BE rear final drives are identified by the hydraulic control unit with side chambers. The final drive code (e.g., LFW) and build date are located on the housing. When replacing the unit, the final drive code, PR number, and vehicle engine code must be verified.
General Repair Information
Maintain the highest level of care and cleanliness. Incorrect repairs can cause malfunctions. Always follow safety precautions, including using proper tools and ensuring the vehicle is level when checking fluid levels. Self-locking bolts and nuts must always be replaced.
Driveshaft Procedures
The driveshaft can be removed from either the transmission side or the rear final drive side. Always store and transport the driveshaft in a fully extended position. Use the specified counterhold tools (T10172) to loosen or tighten bolts. Mark the position of parts before removal to prevent imbalance. Always replace self-locking driveshaft bolts.
Electrical and Electronic Components
The All Wheel Drive Control Module (J492) requires adaptation using a Vehicle Diagnostic Tester after replacing components like the control module, sensors (G437, G640), or the final drive itself. Do not replace both oil pressure/temperature sensors simultaneously to avoid erasing adaptation values.
Rear Final Drive Disassembly and Assembly
The hydraulic control unit, including the All Wheel Drive Pump (V415), sensors, and clutch valves (N445, N446), can be serviced. Ensure the adapter is correctly inserted into the hydraulic pump recesses before installation. Use the specified tightening sequences for all bolts.
Oil and ATF Procedures
The 0BF and 0BE units have separated oil chambers for ATF (hydraulics) and gear oil (differential). Use only specified fluids. Always check levels with the vehicle level and the final drive in the installed position. ATF filling and bleeding must be performed using the Vehicle Diagnostic Tester.
Flange Shaft Seals
Flange shaft seals can only be replaced with the final drive removed. Use the specified seal installers and ensure the seal is not bent during installation. Coat the outer circumference and sealing lips with ATF or gear oil as instructed.
Manufacturer information
Audi AG
Practical help
Common problems
Leaks on the rear final drive
Leaks must be corrected immediately. If they cannot be repaired, the rear final drive must be replaced.
Impaired performance after component replacement
Ensure the All Wheel Drive Control Module (J492) is adapted using a Vehicle Diagnostic Tester.
Driveshaft imbalance
Mark the position of parts before removal and ensure markings align during installation.
Bolts breaking during installation
Clean thread bores of locking fluid residue using a thread tap before installing new bolts.
Before use
- Verify the final drive code and PR number.
- Ensure qualified personnel are performing the work.
- Check for leaks on sealing surfaces.
- Have a Vehicle Diagnostic Tester available for adaptation.
- Ensure the vehicle is level for fluid checks.
- Use only specified ATF and gear oil.
Model compatibility
- 0BF is installed in Audi A4 (2008+), A5 (2008+), A6 (2011+), A7 (2011+), A8 (2010+).
- 0BE is installed exclusively with the V8 TDI Engine in the Audi A8 (2010+).
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.