OVERVIEW
Genuine VW/Audi WHT-005-156 is an individual drivetrain O-ring. The confirmed Q7 applications below specify it at the original transfer-box flange/protective-ring assembly location. It replaces the assigned ring during a repair requiring that exact seal.
Technical details and what is included
- Factory part number: WHT-005-156 / WHT005156.
- Component type: individual O-ring.
- Factory nominal seal size: 28 × 2 mm.
- Quantity supplied: one ring.
- Flange, protective ring, securing ring, shaft oil seals and transfer-box assembly are separately specified.
The nominal seal designation identifies the ring size and is not a packaged shipping measurement. Match the original part assignment and sealing groove before installation. This O-ring is a separate component from a radial shaft oil seal; similar-looking rings used at other driveline connections require their own verification.
Common reasons to replace
- The original ring is damaged, cut or deformed.
- A diagnosed sealing fault is traced to the assigned O-ring location.
- The ring is disturbed during flange or related transfer-box service.
- The factory repair procedure calls for renewal during reassembly.
Inspect the mating parts and groove before fitting a replacement. Surface damage, an incorrect assembly or a leaking radial shaft seal requires separate repair. A replacement ring cannot correct a damaged flange or housing, and a general driveline leak does not identify this ring as the cause.
Vehicle fitment
These profiles require the original eight-speed automatic and matching transfer-box arrangement. Confirm the transmission and transfer-box code together with the factory seal location.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi Q7 | 2011–2015 | 3.0L TFSI supercharged gasoline V6 | 4L; quattro; original compatible transfer box; Eight-speed automatic; PR-G1G | Original transfer-box flange/protective-ring assembly location assigned WHT005156, nominal 28 × 2 mm. Match original transfer-box code, sealing groove and catalog point. One O-ring supplied; shaft oil seals, flange, protective ring and securing ring are separate. |
| Audi Q7 | 2011–2015 | 3.0L TDI diesel V6 | 4L; quattro; original compatible transfer box; Eight-speed automatic; PR-G1G | Original transfer-box flange/protective-ring assembly location assigned WHT005156, nominal 28 × 2 mm. Match original transfer-box code, sealing groove and catalog point. One O-ring supplied; shaft oil seals, flange, protective ring and securing ring are separate. |
| Volkswagen Touareg | 2011–2017 | 3.6L FSI gasoline VR6 | 7P SUV; 4Motion; eight-speed automatic | Original 28 × 2 mm transfer-box flange/protective-ring O-ring assigned WHT005156. Match transfer-box code and exact sealing groove. Other shaft oil seals and the separate 25 × 2 mm O-ring are not interchangeable; one O-ring supplied. |
| Volkswagen Touareg | 2011–2016 | 3.0L TDI diesel V6 | 7P SUV; 4Motion; eight-speed automatic | Original 28 × 2 mm transfer-box flange/protective-ring O-ring assigned WHT005156. Match transfer-box code and exact sealing groove. Other shaft oil seals and the separate 25 × 2 mm O-ring are not interchangeable; one O-ring supplied. |
| Volkswagen Touareg Hybrid | 2011–2015 | 3.0L supercharged gasoline V6 with hybrid drive | 7P SUV; 4Motion; eight-speed automatic | Original 28 × 2 mm transfer-box flange/protective-ring O-ring assigned WHT005156. Match transfer-box code and exact sealing groove. Other shaft oil seals and the separate 25 × 2 mm O-ring are not interchangeable; one O-ring supplied. |
Installation and service guidance
Follow the factory access and disassembly procedure for the actual transfer-box location. Keep the sealing groove and mating surfaces clean, inspect them for damage and compare the new ring with the original specified profile.
Install the ring without twisting, cutting or trapping it. Use only the lubrication and assembly method specified for that sealing point; do not choose a lubricant from the ring's color or appearance.
Renew any separately specified securing hardware or shaft seals required by the repair procedure. Reassemble the flange and protective components using the factory settings and checks, then inspect the repaired location after the prescribed verification procedure.
Use the vehicle repair information for exact fastener values, fluid specifications and service requirements. This listing supplies the O-ring only, and it does not establish interchangeability with other nominally similar seals.