OVERVIEW
Genuine VW/Audi four-pin connector housing with contact lock
7L0-973-812 is the individual four-position connector housing for the assigned original electrical connection. The factory catalogs identify a contact-locking mechanism as part of the housing configuration.
The confirmed applications below distinguish the Q7 air-supply-unit connection from the Touareg ABS harness coupling. The housing is supplied as a bare component; contacts, repair wires, seals and connected electrical components are separate.
Technical details and supplied quantity
- Manufacturer part number: 7L0-973-812; compact reference 7L0973812.
- Brand: Genuine VW/Audi.
- Component: four-pin / four-position connector housing.
- Configuration: original mating profile with contact-locking mechanism.
- Quantity: one individual bare housing per purchase.
Four positions describe the housing layout and do not establish universal compatibility with other four-pin connectors. Match the original part number, keying, terminal system and connected circuit. The Q7 application requires the specified air-suspension equipment.
Common reasons to replace
- The original housing or locking feature is broken.
- The body is damaged during harness service.
- A contact-retention location is damaged.
- A diagnosed connector repair requires renewal of the assigned housing.
Inspect the contacts, wiring and mating component separately. A new housing does not repair broken wires, damaged terminals or a failed pump, sensor or control unit. Diagnose the actual circuit fault before selecting the repair components.
Vehicle fitment
Use the housing only at the original connection assigned 7L0973812. The specific circuit and equipment restrictions are listed below.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi Q7 | 2007 | 3.6L FSI gasoline VR6 | 4L SUV; quattro; Original factory automatic transmission; specific harness connection determines fitment | Original air-supply-unit connection with four-corner air suspension PR 1BK. Does not apply to a coil-spring-only suspension connection. Match original housing part number, keying, mating profile and contact system. One bare housing supplied; contacts, repair wires, seals and connected module are separate. This is not a complete pump, ABS sensor or harness. |
| Audi Q7 | 2007 | 4.2L FSI gasoline V8 | 4L SUV; quattro; Original factory automatic transmission; specific harness connection determines fitment | Original air-supply-unit connection with four-corner air suspension PR 1BK. Does not apply to a coil-spring-only suspension connection. Match original housing part number, keying, mating profile and contact system. One bare housing supplied; contacts, repair wires, seals and connected module are separate. This is not a complete pump, ABS sensor or harness. |
| Volkswagen Touareg | 2008 | 3.6L FSI gasoline VR6 | 7L SUV; 4Motion; Original factory automatic transmission; specific harness connection determines fitment | Original four-position coupling in the anti-lock brake system wiring harness assigned 7L0973812. Match original housing part number, keying, mating profile and contact system. One bare housing supplied; contacts, repair wires, seals and connected module are separate. This is not a complete pump, ABS sensor or harness. |
| Volkswagen Touareg | 2008 | 4.2L FSI gasoline V8 | 7L SUV; 4Motion; Original factory automatic transmission; specific harness connection determines fitment | Original four-position coupling in the anti-lock brake system wiring harness assigned 7L0973812. Match original housing part number, keying, mating profile and contact system. One bare housing supplied; contacts, repair wires, seals and connected module are separate. This is not a complete pump, ABS sensor or harness. |
| Volkswagen Touareg | 2008 | 5.0L TDI diesel V10 | 7L SUV; 4Motion; Original factory automatic transmission; specific harness connection determines fitment | Original four-position coupling in the anti-lock brake system wiring harness assigned 7L0973812. Match original housing part number, keying, mating profile and contact system. One bare housing supplied; contacts, repair wires, seals and connected module are separate. This is not a complete pump, ABS sensor or harness. |
Installation and service guidance
Follow the factory electrical isolation and connector-repair procedure for the affected circuit. Record the original contact positions and housing orientation before releasing the connector. Use the prescribed release tools and avoid pulling on locked contacts by their wires.
Inspect and renew separately specified contacts, wire ends or seals when required. Install the correct terminal system in the new housing according to the vehicle wiring diagram and verify that the contact-locking features engage correctly.
Reconnect the housing to its matching component or coupling, then restore the original harness route without strain. Complete the prescribed circuit checks and any required system verification after reassembly.