Audi A3, Q3 & TT Rear Final Drive 02D, 0AV, 0BR, 0BS, 0BY Repair Manual

Description

Audi A3, Q3 & TT Rear Final Drive 02D, 0AV, 0BR, 0BS, 0BY Repair Manual

This Audi A3, Q3 & TT Rear Final Drive 02D, 0AV, 0BR, 0BS, 0BY Repair Manual (Edition 06.2011) is a 131-page technical document covering the rear final drive assemblies and integrated Haldex all-wheel-drive clutch systems fitted to the Audi A3 (from model year 2004), Audi Q3 (from model year 2012), and Audi TT (from model year 2007). It is organized under two repair groups:

• 00 – General, Technical Data
• 39 – Final Drive, Differential

Manual Overview

• Manual type: Rear final drive and Haldex clutch repair manual
• Brand/model coverage: Audi A3, Audi Q3, Audi TT
• Final drive codes: 02D, 0AV, 0BR, 0BS, 0BY
• Language: English
• Page count: 131 pages
• File format: PDF
• Edition: 06.2011
• Document number: D3E80023195

Chapters Covered

• 00 – General, Technical Data
  • General Information: Components, Contact Corrosion, General Repair Information, Haldex Clutch Oil and Axle Oil, Rear Final Drive Identification, Safety Precautions
  • Description and Operation: Powertrain Overview
  • Specifications: Code Letters, Assembly Allocation, Ratios and Capacities (Audi A3 and Audi TT)

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• 39 – Final Drive, Differential
  • General Information: Rear Final Drive Identification, Gear Oil Level Checking (02D/0AV and 0BR/0BS/0BY), Haldex Clutch Oil Level Checking or Filling, High Performance Haldex Clutch Oil Changing
  • Description and Operation: All Wheel Drive Control Module J492 overviews (Haldex-Clutch Generation II and IV), Bonded Rubber Bushing Overview, Electric and Electronic Components and Installation Locations, Driveshaft with Non-Separable Center Support, Haldex-Clutch overviews, Driveshaft Overview, Rear Final Drive Overview
  • Specifications: Fastener Tightening Specifications
  • Diagnosis and Testing: Vehicle Diagnosis Tester connection and checking, Haldex-Clutch function checks for both generations
  • Removal and Installation: All Wheel Drive Control Module J492, Bonded Rubber Bushing, Haldex Clutch Grooved Ball Bearing, Haldex Clutch Oil Filter, Haldex Clutch Pumps V181, Driveshafts (separable and non-separable center support), Rear Flexible Disc, Rear Final Drive removal/installation, Flange/Driveshaft seals
  • Disassembly and Assembly: Driveshaft with Separable Center Support
  • Special Tools

Together these sections walk a technician from correctly identifying which final drive code is installed on a given car, through checking and changing fluids, diagnosing the Haldex all-wheel-drive clutch electronically, and carrying out the physical removal, installation, and disassembly work on the final drive, driveshafts, and related mounting hardware.

Haldex Clutch Generations and Identification

A central theme of this Audi A3, Q3 & TT Rear Final Drive 02D, 0AV, 0BR, 0BS, 0BY Repair Manual is distinguishing between the two Haldex clutch generations installed across these final drives. The 02D and 0AV final drives use the Generation II Haldex clutch, while the 0BR, 0BS, and 0BY final drives use the Generation IV Haldex clutch. The manual explains how to read the final drive identification codes stamped on the housing (part number, code letters, and build date) so the correct procedures, fluids, and parts are matched to the unit actually installed on the vehicle, rather than assumed from the model year alone.

Fluid Capacities and Fastener Torque Data

The manual documents final drive gear oil capacity (0.95 liters) and Haldex clutch oil capacity (0.85 liters) across the covered codes, along with the reduced replacement-fill capacity used during a standard fluid change (0.65 liters for Generation II units, 0.70 liters for Generation IV units). It also includes a dedicated Fastener Tightening Specifications table listing torque values in Nm for components such as the AWD control module mounting, Haldex clutch housing, flexible discs, driveshaft flange nut, oil filler plugs, and pendulum support bolts — several of which are marked as one-time-use fasteners that must be replaced whenever removed.

Transmission and Engine Allocation

Each final drive part number is cross-referenced in the manual to the transmissions it was installed behind — including the 6-speed manual 02Q and 0A6, the 6-speed Direct Shift automatic 02E, and the 7-speed DSG 0BH — along with the engine variants it was paired with, ranging from 2.0L TFSI four-cylinder engines up to the 3.2L V6. Gear ratios (27:17 = 1.588) and driveshaft flange diameters (100 mm) are listed for each final drive part number and identification code, letting a technician confirm exact compatibility before ordering parts or beginning a repair.

Why This Audi Rear Final Drive Repair Manual Matters

Working on an all-wheel-drive Audi rear final drive without the correct procedures risks damaging the Haldex clutch, mismatching fluids between the separate final drive and Haldex oil circuits, or under/over-torquing safety-critical fasteners like the driveshaft flange nut and pendulum support bolts. This Audi A3, Q3 & TT Rear Final Drive 02D, 0AV, 0BR, 0BS, 0BY Repair Manual gives independent technicians and enthusiasts the same identification logic, fluid specifications, torque values, and step-by-step removal and installation sequences used in the dealer workshop, covering both Haldex clutch generations in one reference. It downloads instantly as a PDF after purchase, requires no shipping or waiting, and can be viewed on a phone, tablet, laptop, or printed out for use at the workbench.