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BMW Information | Auxiliary Drive Belt Positioning - N43 - E90

Reference information for fitting position of the auxiliary drive belt on a BMW E90 - N43 engine type.

When removing the auxiliary belt, it is advisable to take a picture of the pulley positions to aid refitting. This diagram can help if you print it out and store it in the vehicle for future reference, such as a breakdown situation.

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Reference

1. HAYNES: BMW 3-Series 2008-2012 - ISBN: 978 0 85733 901 0

2. Wikipedia: BMW N43 Engine

3. Pelican: Replacing your drive belt E90