Audi A6 Typ 4G: Identification
Final Drive Identification
Final Drive Identification, 0BC
The 0BC rear final drive unit is used with the following transmissions:
- 6-Speed Manual Transmission 0B2 All Wheel Drive (AWD)
- 6-Speed Manual Transmission 0B4 All Wheel Drive (AWD)
- 7-Speed DSG Transmission 0B5 All Wheel Drive (AWD)
- Automatic Transmission 0B6 All Wheel Drive (AWD)
- 8-Speed Automatic Transmission 0BK All Wheel Drive (AWD)
- 8 speed automatic transmission 0BW All Wheel Drive (AWD) (only Q5 hybrid)
Rear Final Drive Allocation
- Refer to → Chapter "Transmission/Engine Allocation"
Layout on Rear Final Drive
Final drive 0BC -arrow 1- and 0AR
Engine code and production date -arrow 2-
Final Drive 0BC -arrow- and 0AR
Note
- The designation "0AR" can always be found on the rear final drive housing. Changes to the housings is what differentiate the "0BC" and "0AR" final drives.
- Another characteristic is the location of the threaded holes -arrows- for securing the crossmember on the rear final drive.
- The final drive "0BC" has four threaded holes -arrows- for the crossmember mounting in the final drive housing. There is also an additional threaded hole for securing the final drive to the subframe under the flange/driveshaft.
Rear Final Drive Code Letters and Build Date
.png)
Additional data can be ignored.
Note
When installing a new rear final drive unit, the final drive code, the PR number and the vehicle engine code must be verified in the Parts Catalog. This is the only to assure the correct allocation.
Final Drive Identification, 0BE, 0BF
The "Rear Final Drive 0BF" is installed in Audi A4 from MY 2008, Audi A5 Coup from MY 2008, Audi A5 Cabriolet from 2009, Audi A6 from MY 2011, Audi A7 from MY 2011, and Audi A8 from My 2010.
Allocation to the following transmissions:
- 6-Speed Manual Transmission 0B2 All Wheel Drive (AWD)
- 6-Speed Manual Transmission 0B4 All Wheel Drive (AWD)
- 7-Speed DSG Transmission 0B5 All Wheel Drive (AWD)
- Automatic Transmission 0B6 All Wheel Drive (AWD)
- 8-Speed Automatic Transmission 0BK All Wheel Drive (AWD)
The "Rear Final Drive 0BE" is an enhanced version of the "0BF" and is installed exclusively with the V8 TDI Engine in the Audi A8 from MY 2010.
Allocation to the following transmission:
- 8-Speed Automatic Transmission 0BL All Wheel Drive (AWD)
Rear Final Drive Allocation
- Refer to → Chapter "Transmission/Engine Allocation"
Layout on Rear Final Drive
Clutch classification -arrow 1-.
Engine code and production date -arrow 2-.
Note
A characteristic of the rear final drive "0BF and 0BE" is the hydraulic control unit with the side chambers.
- -Arrow 1- code -LFW-
- -Arrow 2- Rear final drive build dates
.png)
- -Arrow 3- Classification (classification of the clutch friction values) for the right clutch. Example: -272D-
- -Arrow 4- Classification (classification of the clutch friction values) for the left clutch. Example: -4A10-
Additional data can be ignored.
Note
When the rear final drive is replaced, not only the final drive code but also the PR number and the vehicle engine code must be verified in the Parts Catalog. This is the only to assure the correct allocation.
Technical Data
Transmission/Engine Allocation
Refer to the Parts Catalog for the following information.
- Codes
- Production time period.
- Axle ratio
- Drive Axle flange allocation
- Allocated to the engine, manual transmission and automatic transmission using the code letters and the PR numbers
Capacities
Capacities, Rear Final Drive 0BC
- Checking gear oil level. Refer to → Chapter "Gear Oil, Checking Level".
Capacities, Rear Final Drive 0BD
- Checking gear oil level. Refer to → Chapter "Gear Oil, Checking Level".
Capacities, Rear Final Drive 0BF
Caution
Gear oil and ATF fluid change.
- For some RS models the gear oil as well as the ATF must be changed.
- Refer to →Maintenance Intervals; Rep. Gr.03 for the change interval.
- For all other vehicles there is no change interval.
Capacities, Rear Final Drive 0BE
Note
The rear final drive 0BE is only installed with the V8 TDI engine.
