Rear final drive marking 0BC (Audi A4 B8)

Designation 0BC for the rear final drive is assigned to the following gearboxes: 6-speed manual gearbox 0B2, all-wheel drive, 6-speed manual gearbox 0B4, all-wheel drive, 7-speed dual-clutch gearbox 0B5 for all-wheel drive vehicles, automatic gearbox 0B6, all-wheel drive, 8-speed automatic gearbox 0BK all-wheel drive.

Rear location. main transmission

Main gear 0BC "arrow 1" and 0AR. Letter designation and production date "arrow 2".

Main gear 0BC "arrow" and 0AR

Note: On the rear crankcase. the main transmission is always marked "0AR". The characteristic difference between the "0BC" and "0AR" main transmissions is the modified crankcase. Another distinctive feature is the position of the threaded holes "arrow" for fastening the rear cross member. main gear. The main gear "0BC" has 4 threaded holes "arrows" for fastening the cross beam, - in the main gear housing. transmission. In addition, an additional threaded hole for fastening the main. transmission to the subframe, located under the flange/cardan shaft.

Letter designation and date of manufacture of the back. head of transmission

Other data can be ignored. When replacing the rear. when selecting a transmission, consider not only the letter designation, but also the PR number and engine letter designation. This is the only way to ensure a perfect match.

Letter designations 0BC

Letter designation	JKP	JKQ	JKR
Drive shaft flange diameter	70.7 mm	75.5 mm	70.7 mm
Letter designation	JKS	CSS	KLL
Drive shaft flange diameter	75.5 mm	75.5 mm	70.7 mm
Transmission oil - filling volume	0.9 l
Letter designation	KRT	LYF	MNA
Drive shaft flange diameter	75.5 mm	75.5 mm	70.7 mm
Letter designation	MNB
Drive shaft flange diameter	75.5 mm
Transmission oil - filling volume	0.9 l

(The original text is available on the website: AUDImanual)