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Audi Alternator Pulley - A3 2006-08 w/ 2.0L 4 Cylinder Turbocharged Engine
Product Part Number:
Product Information:

INA - Audi A3 Alternator Freewheel Clutch Pulley (VAG OEM Supplier) (A.K.A. over-running alternator pulley)

This Audi A3 alternator pulley is manufactured by INA Schaeffler Group Automotive. It is an official OE product and is the same alternator pulley that was fitted on your Audi A3 from the factory! Blauparts partnership with an OE manufacturer means we can ensure absolute quality control to you through a direct supply chain. We offer the latest version of this pulley with the latest improved material revisions. Don't take a chance on low quality aftermarket alternator clutch pulleys being sold today. For complete piece of mind, you can purchase the highest quality official OE alternator pulley with confidence from Blauparts, your Audi VW specialist for over 25 years.

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Please ensure your vehicle is listed below.
Vehicle Applications:
A3 4dr Hatchback - Non-Quattro w/ 2.0L 4 Cylinder 16 Valve Turbocharged Engine Code BPY
A3 4dr Hatchback - Non-Quattro w/ 2.0L 4 Cylinder 16 Valve Turbocharged Engine
Technical Information:
Function: The function of the over-running alternator pulley is to disengage and dampen the alternator from the rotational energy of the engine. This allows the accessory belt system to run more smoothly, minimize belt noise, and variation. Also, rotational inertia is decreased, lowering drive belt slippage during deceleration and hard acceleration. Long term the over-running alternator pulley gives reduced stress on accessory drive belt components.

Diagnosing: Accessory belt (aka serpentine belt) problems can be easily misdiagnosed, especially those with an over-running alternator pulley. After hearing belt noises coming from the accessory belt area and upon visual inspection, many notice excessive belt and tensioner vibration and flapping. Oftentimes this is misdiagnosed as a bad belt and weak accessory belt tensioner spring. In most cases the excessive belt vibration and flapping is caused by the over-running alternator pulley going bad.
How To Change or Replace the Audi Over-Running Alternator Pulley
How To Diagnose a Noisy Chattering Audi Over Running Alternator Pulley