OVERVIEW
Secure the original door lock cylinder hardware
Genuine VW/Audi N-012-411-1 is the small retaining ring assigned to the original exterior front door-handle lock-cylinder assembly on the confirmed applications below. It seats in the matching groove to retain the associated lock hardware in its intended axial position.
A missing or distorted retaining ring can allow an otherwise serviceable lock assembly to come apart or lose its correct location. This listing supplies the individual ring for an identified original lock arrangement. The lock cylinder, follower, tumbler plates, seals, keys and complete door handle are separate components.
Technical details
- Complete factory number: N-012-411-1.
- Factory specification: 11 × 1 mm securing ring according to the original parts catalog.
- Design: split external retaining ring with tool engagement holes, as shown in the archive photograph.
- Quantity supplied: one individual securing ring.
The 11 × 1 mm designation is the functional catalog specification, not a measurement of the shipping package. Match the original part number, groove and lock assembly before ordering. Similar retaining rings with different thicknesses or diameters may fail to seat correctly or may interfere with the lock mechanism.
Common reasons to replace
- The original ring has been lost while a door handle or lock cylinder was dismantled.
- The ring has been overstretched, bent or damaged during removal and no longer sits securely in its groove.
- Corrosion or wear has weakened the original retainer.
- A lock-cylinder or follower repair requires replacement retaining hardware in the original assigned position.
Inspect the groove, lock cylinder and follower before fitting a replacement. A cracked follower, worn cylinder, damaged key or failed central-locking component needs separate diagnosis. Installing a ring does not repair those faults or restore a damaged retaining groove.
Vehicle fitment
These entries identify confirmed original front door-handle lock-cylinder applications. Match the actual lock assembly, particularly if a handle or cylinder has been changed. The early 1998 A4 quattro VIN restriction shown below must be observed. This table does not establish use at every retaining-ring position on the vehicle.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi 90 | 1993–1994 | 2.8L V6 gasoline | B4 sedan; front-wheel drive | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
| Audi 90 | 1993 | 2.8L V6 gasoline | B4 sedan; quattro | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
| Audi 90 | 1995 | 2.8L V6 gasoline | B4 sedan; quattro | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
| Audi 100 | 1993 | 2.8L V6 gasoline | C4; front-wheel drive | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
| Audi 100 | 1992; 1994 | 2.8L V6 gasoline | C4; quattro | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
| Audi Coupe Quattro | 1990 | 2.3L 20-valve gasoline inline-five | B3 coupe; quattro | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
| Audi A4 | 1996 | 2.8L V6 gasoline | B5 sedan; front-wheel drive | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
| Audi A4 | 1998 | 1.8L turbo gasoline or 2.8L V6 gasoline | B5; quattro; VIN through 8D-W-007799 | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. Restricted to the catalog's early VIN group through 8D-W-007799. |
| Audi 200 Quattro | 1991 | 2.2L 20-valve turbo gasoline inline-five | C3; quattro | Original front door-handle lock-cylinder securing ring, 11 × 1 mm catalog specification. Match the lock cylinder, follower and original ring groove; one ring supplied. No engine or transmission fastening variant is specified for the ring at this original lock-cylinder position. |
Installation guidance
Follow the door-handle and lock-cylinder service procedure for the exact vehicle. Keep the small components and their orientation organized during dismantling. Use suitable retaining-ring pliers, expand the ring only as far as necessary, and protect the lock components from scratches or distortion.
Make sure the ring is fully seated around the entire intended groove and that the retained component cannot move out of position. Reassemble the handle and test key rotation, mechanical locking, unlocking and handle operation before closing the door. Check any alarm or central-locking functions affected by the repair.
Ordering information
One purchased unit supplies one N-012-411-1 securing ring. Catalog quantities describe an entire assembly or vehicle and do not change the quantity supplied here. Check the complete original part number and fitted lock arrangement before purchase.