2017 Bmw M4Serpentine Belt Diagram & Size

OEM serpentine belt spec from the factory service manual for the 2016-2020 (2016-2020).

Quick Answer

Routing: DRIVE BELT FOR ALTERNATOR
Source: Factory service manual β€” 2017 Bmw M4 2016-2020.

This vehicle's factory manual

2017 Bmw M4: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.

Open this vehicle’s service manual

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Frequently Asked Questions

What size serpentine belt does a 2017 Bmw M4 use?
Refer to the factory service manual for the exact serpentine belt specification for your 2017 Bmw M4.
How do I know if my Bmw M4 serpentine belt is bad?
Common signs include squealing on startup (especially when cold), visible cracks or fraying on the ribbed side, power steering or A/C failure, and battery warning lights. The factory manual includes inspection criteria and replacement intervals.