OVERVIEW
Restore the original supercharger drive connection
06E-903-137-AB is the Genuine VW/Audi ribbed belt for the supercharger drive on the specified 3.0L supercharged V6 applications. It transmits crankshaft rotation through the tensioner and idler to the mechanically driven supercharger, making the correct belt profile and original pulley arrangement essential.
A worn or slipping supercharger belt can interrupt the drive to the compressor. This is the belt for the specified supercharger circuit; identify the belt being serviced and compare the original routing before ordering.
Technical details
- Complete factory number: 06E-903-137-AB.
- Factory specification: 24.92 × 1270 mm nominal belt designation; factory routing Crk–Tens–Sc–Idler.
- Design: continuous multi-rib drive belt for the original crankshaft, tensioner, supercharger and idler arrangement.
- Quantity supplied: one individual supercharger drive belt.
The supplied item is the belt only. Tensioner, idler pulleys, supercharger, fasteners and the separate accessory drive belt are not included. Modified pulley diameters can require a different belt; the factory belt application assumes the original drive configuration.
Common reasons to replace
- The ribs show cracking, missing sections or separation.
- The belt has frayed edges or a damaged backing.
- Diagnosis confirms belt slip or noise in the supercharger drive.
- Oil or coolant contamination has damaged the belt.
- The belt is replaced during a repair that requires renewal under the applicable service procedure.
Inspect the tensioner, idlers and pulley alignment before fitting a replacement. A seized bearing, damaged pulley or fluid leak can quickly damage a new belt. Diagnose the cause of noise or poor supercharger drive rather than assuming the belt is the only fault.
Vehicle fitment
Applies to the listed vehicles with the factory 3.0L mechanically supercharged gasoline engine and original supercharger pulleys. Turbocharged and diesel engines use different drive arrangements.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A6 | 2009–2018 | 3.0L supercharged gasoline V6 | quattro sedan; 3.0T | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi A6 Avant | 2009–2011 | 3.0L supercharged gasoline V6 | quattro wagon; 3.0T | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi A7 | 2012–2018 | 3.0L supercharged gasoline V6 | quattro Sportback; 3.0T | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi A8 L | 2013–2018 | 3.0L supercharged gasoline V6 | quattro long-wheelbase sedan; 3.0T | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi Q5 | 2013–2017 | 3.0L supercharged gasoline V6 | 8R SUV; quattro; 3.0T | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi Q7 | 2011–2015, 2017–2019 | 3.0L supercharged gasoline V6 | quattro SUV; 3.0T | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi S4 | 2010–2016 | 3.0L supercharged gasoline V6 | B8/B8.5 quattro sedan | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi S5 | 2010–2017 | 3.0L supercharged gasoline V6 | quattro Cabriolet | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi S5 | 2013–2017 | 3.0L supercharged gasoline V6 | quattro Coupe; 3.0T | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Audi SQ5 | 2014–2017 | 3.0L supercharged gasoline V6 | 8R quattro SUV | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
| Volkswagen Touareg Hybrid | 2011–2015 | 3.0L supercharged gasoline V6 | Hybrid SUV; 3.0L supercharged gasoline V6 with electric motor; 4MOTION | Original supercharger drive and factory pulley sizes; verify original belt number. Excludes turbocharged and diesel engines. |
Installation guidance
Follow the engine-specific belt replacement procedure, release the tensioner using the prescribed tool and route the belt exactly as specified. Keep all ribs seated in the pulley grooves and avoid forcing the belt over a pulley edge.
Before starting, check every pulley contact and confirm the tensioner is positioned correctly. Carry out the specified operational check and investigate any tracking error, abnormal movement or persistent noise.
Ordering information
One individual Genuine VW/Audi supercharger belt. Confirm the original belt number, engine and pulley configuration; pulley kits and other drive components are separate.