OVERVIEW
Genuine VW/Audi 8X4-833-406-B is the specified upper half of the right lower door hinge. On the confirmed A3 Cabriolet profiles, it is the door-mounted portion at the right front door's lower hinge position. The sedan profiles use the assigned door-side half of the right rear lower hinge; match the body and door position in the table.
Technical details and what is included
- Factory number: 8X4-833-406-B / 8X4833406B.
- Component: door hinge half.
- Positions: Cabriolet right front lower hinge or the listed sedan right rear lower hinge, door side; see application table.
- Factory half designation: upper part of the lower hinge.
- Quantity supplied: one individual hinge half.
- The archive photo shows the metal hinge component and its mounting and pivot features.
The term upper half describes this portion of the hinge assembly; it does not mean the upper hinge position on the door. The mating body-side half is a separate component. A left-hand half, another door position or a complete assembled hinge cannot be selected solely because the part looks similar.
Match the exact B suffix, mounting geometry and original hinge assembly before ordering. The catalog number appears in other body applications, but a shared part-family prefix does not establish that a front-door assignment on a Cabriolet is the same installation point as a sedan rear-door hinge.
Common reasons to replace
- Inspection identifies damage to the assigned hinge half.
- Wear at the hinge connection produces excess movement and the diagnosed repair requires this component.
- The mounting portion has been distorted during damage or previous repairs.
- The correct original hinge half is required while restoring the door's original attachment.
A sagging door, difficult closing or uneven panel gap can also result from another worn hinge portion, loose hardware, a striker problem or body damage. Inspect the complete door attachment and determine the affected component before ordering. Replacing this half alone does not establish that the mating half or surrounding structure is serviceable.
Vehicle fitment
Use the body style and mounting-position restrictions in the table. The Cabriolet rows identify the right front lower hinge, while the sedan rows identify the right rear lower hinge. These positions must not be interchanged by assumption. Verify the installed hinge by VIN and exact part assignment before disassembly.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A3 | 2015–2016 | 1.8L turbocharged gasoline inline-four | 8V Cabriolet; front-wheel drive; right front door; 6-speed S tronic DSG | Door-mounted upper half of the right lower hinge; Cabriolet body PR-K8K. Match exact B-suffix half and installed mating hinge. Does not establish sedan front-door fitment. |
| Audi A3 | 2015–2019 | 2.0L turbocharged gasoline inline-four | 8V Cabriolet; quattro; right front door; 6-speed S tronic DSG | Cabriolet right lower hinge, door-side upper half, PR-K8K. Confirm original hinge assembly and B revision; the body-side half and upper door hinge are separate. |
| Audi A3 | 2017 | 2.0L turbo gasoline inline-four | 8V sedan; right rear door | Right rear lower hinge, door-side upper half. Sedan rear-door assignment only; match original B-suffix hinge and mating half. Not the Cabriolet front-door position in the other rows. |
| Audi RS3 | 2017–2020 | 2.5L turbo gasoline inline-five | 8V sedan; quattro; right rear door | Right rear lower hinge, door-side upper half in original 8V sedan hinge arrangement. Match B-suffix component and mating body-side half. Foreign RS3 Sportback not included. |
Installation and adjustment guidance
Support the door using the prescribed workshop method before disturbing its hinge connection. Follow the factory removal procedure, protect the painted surfaces and inspect the mating half, pivot and attachment points before fitting the replacement.
Use the required mounting hardware and tightening sequence for the specific hinge. Renew any fasteners the procedure identifies as single-use. Align the door using the factory adjustment process rather than relying on the new hinge half to correct unrelated body or striker damage.
After refitting, check the door gaps, sealing contact, latch engagement and movement through the opening range. Confirm that the door closes correctly without interference. This listing supplies one hinge half; the mating half, mounting bolts, caps, door check and door assembly are separate.