BMW 330i Drive Belt & Tensioner Replacement DIY (2019-Present BMW G20, G22 430i, G42 230i)

►The accessory drive belt ensures your BMW's battery stays charged and the AC stays cold. Thanks to a couple of rollers and a belt tensioner, it takes drive from the crankshaft pulley and transfers it to the alternator and AC compressor pulleys. Replacing the accessory belt is a part of standard maintenance, even if it doesn't seem all that important. Damage or wear to the rollers, belt, or tensioner can be enough to cause a failure, stranding you without proper electrical power.

Constant use wears out the accessory drive belt components. The first bits to wear are generally the bearings in the belt rollers, pulleys designed to keep the belt on track. They'll become audible when spinning, giving off a whirring or humming sound. If left for long enough, the belt can also crack as the rubber dries out. All of these faults should happen after 80,000 miles, so there's likely a chance you have a while to prepare for the service.

In this video, Mike Hidalgo, FCP Euro's Professional DIYer, replaces the accessory drive belt and tensioner on a BMW G20 330i.

00:00 - Intro
02:28 - Tools Needed
03:31 - Job Start/Intake Removal
07:37 - Charge Pipe Removal
08:32 - Belt Removal
16:16 - Tensioner Replacement
16:53 - Belt Installation
20:43 - Charge Pipe Installation
22:02 - Intake Installation
24:32 - Wrap-Up

Buy These Parts Here
Tensioner: https://www.fcpeuro.com/products/bmw-...

Serpentine Belt: https://www.fcpeuro.com/products/serp...

BMW 340i Series:

2016–2018 BMW 340i Accessory Drive Belt Tensioner Assembly

2016–2018 BMW 340i xDrive Accessory Drive Belt Tensioner Assembly

BMW 740i Series:

2016–2021 BMW 740i Accessory Drive Belt Tensioner Assembly

2017–2021 BMW 740i xDrive Accessory Drive Belt Tensioner Assembly

BMW M240i Series:

2017–2021 BMW M240i & xDrive Accessory Drive Belt Tensioner Assembly

BMW 230i Series:

2017–2020 BMW 230i & xDrive Accessory Drive Belt Tensioner Assembly

BMW 330i Series:

2017–2021 BMW 330i & xDrive Accessory Drive Belt Tensioner Assembly

2017–2019 BMW 330i GT xDrive Accessory Drive Belt Tensioner Assembly

BMW 340i GT xDrive:

2017–2019 BMW 340i GT xDrive Accessory Drive Belt Tensioner Assembly

BMW 440i Series:

2017–2020 BMW 440i & xDrive Accessory Drive Belt Tensioner Assembly

2017–2020 BMW 440i Gran Coupe & xDrive Gran Coupe Accessory Drive Belt Tensioner Assembly

BMW 430i Series:

2017–2021 BMW 430i & xDrive Accessory Drive Belt Tensioner Assembly

2017–2022 BMW 430i Gran Coupe & 430i xDrive Gran Coupe Accessory Drive Belt Tensioner Assembly

BMW 530i Series:

2017–2021 BMW 530i & xDrive Accessory Drive Belt Tensioner Assembly

BMW 540i Series:

2017–2020 BMW 540i & xDrive Accessory Drive Belt Tensioner Assembly

BMW X3 Series:

2018–2022 BMW X3 Accessory Drive Belt Tensioner Assembly

BMW X4 Series:

2019–2022 BMW X4 Accessory Drive Belt Tensioner Assembly

BMW X2 Series:

2019–2021 BMW X2 M35i Accessory Drive Belt Tensioner Assembly

BMW X5 Series:

2019–2021 BMW X5 xDrive40i & sDrive40i Accessory Drive Belt Tensioner Assembly

BMW M340i Series:

2020–2021 BMW M340i & xDrive Accessory Drive Belt Tensioner Assembly

BMW X7:

2019 BMW X7 xDrive40i Accessory Drive Belt Tensioner Assembly

BMW Z4 Series:

2019–2021 BMW Z4 sDrive30i & M40i Accessory Drive Belt Tensioner Assembly

Mini Cooper Series:

2020–2022 Mini Cooper Base, S, & John Cooper Works Accessory Drive Belt Tensioner Assembly

2020–2021 Mini Cooper Clubman Accessory Drive Belt Tensioner Assembly

BMW X1:

2020–2021 BMW X1 Accessory Drive Belt Tensioner Assembly

BMW 840i Series:

2020–2021 BMW 840i, Gran Coupe, & xDrive Accessory Drive Belt Tensioner Assembly

2020–2021 BMW 840i xDrive Gran Coupe Accessory Drive Belt Tensioner Assembly

BMW M235i xDrive Gran Coupe:

2020–2021 BMW M235i xDrive Gran Coupe Accessory Drive Belt Tensioner Assembly

BMW 228i xDrive Gran Coupe:

2020–2021 BMW 228i xDrive Gran Coupe Accessory Drive Belt Tensioner Assembly

BMW M4 & M3:

2021 BMW M4 & M3 Accessory Drive Belt Tensioner Assembly


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