
Alternator Drive Belt – BMW N52 6 Cyl. 2003-2013 1,3,5,X3,X5,Z4
Step 1 - Purchase Parts

Accessory Drive Belt Kit
If you're not too thrilled about purchasing each part from separate vendors, this all-in-one kit by Contitech has everything you need to complete this repair in a single package delivered to your door with prime shipping. Included in the kit are the belt tensioner, deflection pulley, and accessory belt making it easy for those of us who prefer not to track each part number down individually. Highly recommended.
Step 2 - Repair Procedure

The N52 six-cylinder engine was found in many different BMW vehicles. The following instructions may differ slightly depending on year and model.

- Locate the belt tensioner pulley (3) on the front of the engine.
- Using a torx bit and a long handled socket wrench, turn the belt tensioner CLOCKWISE until it releases tension on the drive belt (1).
- While the tension is removed from the alternator drive belt, slip the belt off of the tensioner pulley (2). Remove the belt from the vehicle and replace.