Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Bmw M4 2d ConvertibleSerpentine Belt Diagram & Size
OEM serpentine belt spec from the factory service manual for the 2015-2018 (2015-2018).
Quick Answer
This vehicle's factory manual
2017 Bmw M4 2d Convertible: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
What You'll Need
These links search Amazon; confirm the belt or pulley against your engine, equipment and VIN before ordering. As an Amazon Associate, we earn from qualifying purchases.
Serpentine Belt
Bmw M4 2d Convertible Replacement Belt
Search Amazon →
Tool
Belt Tensioner Tool
Search Amazon →
Related Part
Idler / Tensioner Pulley
Search Amazon →
For belt noise, inspect the belt drive and follow the vehicle's service procedure. Belt manufacturer Dayco advises against using belt dressing to solve serpentine-belt problems. Read Dayco's belt-service guidance.
Related for Your 2017 Bmw M4 2d Convertible
Frequently Asked Questions
- What size serpentine belt does a 2017 Bmw M4 2d Convertible use?
- Refer to the factory service manual for the exact serpentine belt specification for your 2017 Bmw M4 2d Convertible.
- How do I know if my Bmw M4 2d Convertible 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.