Audi Serpentine Drive Belt - Genuine Audi 078903137BJ

Product Information

Your vehicles serpentine belt is designed to drive your engines accessories such as the water pump, alternator, power steering pump, and A/C compressor. Depending on the configuration of your vehicles accessory array your vehicle may have a single or multiple serpentine belts. Compared to traditional v-belts serpentine belts have a long and reliable service life and rarely require maintenance before replacement.

Due to the materials that modern serpentine belts are made out of it is possible for them to last anywhere from 50,000 miles to upwards of 80,000 miles. When replacing your vehicles serpentine belt it is highly recommended to inspect all related pulleys and tensioners. In most cases it is recommended to replace the belt and pulleys/tensioners at the same time.

• Cracks or fraying
• Squealing or squeaking from engine bay
• Stretching causing low friction over pulleys
• Chemical spills such as oil or coolant leaks
• Accessories not providing proper output as intended

About Genuine Audi

The original parts used by Audi to build your car are available as replacement parts under the “Genuine Audi” brand. Manufactured under the direction of Audi, expect excellent quality and a premium price since these parts are available exclusively through the Audi Dealership network.

You may not realize this, but the parts that make up your Audi are not necessarily manufactured by Audi. No cause for concern, as Audi designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for Audi for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine Audi parts box and find an OEM branded part inside, simply with the addition of an Audi logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.