Final Drive Identification, Rear Final Drive 0BC

WARNING: This page is about a different car, the 2013 Audi S4, 2012 Audi S4, 2011 Audi S4, and 2010 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Code letters, transmission allocations, ratio and capacities. Refer to TRANSMISSION/ENGINE ALLOCATION , and CAPACITIES .

When repairing the driveshaft or rear final drive. Refer to DRIVESHAFT and FINAL DRIVE .

Location on the Final Drive

Fig 1: Identifying Final Drive 0AR -Arrow 1- And Engine Code And Production Date -Arrow 2-

Courtesy of AUDI OF AMERICA, LLC

Final drive 0BC -arrow 1- and 0AR

Engine code and production date -arrow 2-

Fig 2: Final Drive 0AR & Identification And Date Of Construction

Courtesy of AUDI OF AMERICA, LLC

NOTE:

"0AR" can always be found on the rear final drive housing. Changes to the housings is what differentiate the "0BC" and "0AR" final drives.

They can also be distinguished by the location of the threaded holes -arrows- for securing the crossmember on the rear final drive.

Fig 3: Locating Final Drive Threaded Holes

Courtesy of AUDI OF AMERICA, LLC

The final drive "0BC" has 4 threaded holes -arrows- in the housing for securing the crossmember 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

Fig 4: Identifying Rear Final Drive Code Letters And Build Date

Courtesy of AUDI OF AMERICA, LLC

Example:	JKS	15	03	07
	I	I	I	I
	Codes	Day	Month	Production year -2007-

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 . This is the only to assure the correct allocation.