m340i water pump/surpentine belt issue

G20Mack · 04-25-2023, 12:03 AM

Has anyone been experiencing this issue? 3rd time bmw has had to fix it giving out. My car is only is a 2021 with 19k miles

navyofficer · 04-25-2023, 08:45 AM

My 2021 M340i has 10,000 km and the dealership told me there was a service advisory to replace the coolant pump. They performed a replacement. No issues before or after.

oldracer88 · 05-01-2023, 07:56 AM

The coolant pump pulley on my 2021 M340i exploded and the dealer replaced the belt, pump, idler pulley and I had them change the front seal as these can get damaged when this type of problem occurs. Car has been fine since.

trinity75 · 03-13-2024, 08:43 AM

I also have a 2021 m340i (17,000 miles) and want to change an aftermarket charge pipe. Before installing the charge pipe, I want to replace a serpentine belt.

Does anyone know how to change the serpentine belt?

In advance, thank you for sharing your knowledge with us.

04-25-2023, 12:03 AM	#1
G20Mack New Member 5 Rep 13 Posts Drives: BMW M340i Join Date: Jan 2023 Location: El Paso iTrader: (0)	m340i water pump/surpentine belt issue Has anyone been experiencing this issue? 3rd time bmw has had to fix it giving out. My car is only is a 2021 with 19k miles Attached Images
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04-25-2023, 08:45 AM	#2
navyofficer New Member 10 Rep 8 Posts Drives: BMW M340i Join Date: Feb 2021 Location: Ottawa iTrader: (0) Garage List 2021 BMW M340i [0.00]	M340i water pump My 2021 M340i has 10,000 km and the dealership told me there was a service advisory to replace the coolant pump. They performed a replacement. No issues before or after.
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05-01-2023, 07:56 AM	#3
oldracer88 Registered 0 Rep 1 Posts Drives: 2021 BMW M340i xdrive Join Date: Jan 2023 Location: West Palm Beach, Florida iTrader: (0)	Water pump The coolant pump pulley on my 2021 M340i exploded and the dealer replaced the belt, pump, idler pulley and I had them change the front seal as these can get damaged when this type of problem occurs. Car has been fine since.
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03-13-2024, 08:43 AM	#4
trinity75 Registered 0 Rep 3 Posts Drives: 2021 BMW M340i Join Date: Feb 2024 Location: Ellicott city, MD iTrader: (0)	I also have a 2021 m340i (17,000 miles) and want to change an aftermarket charge pipe. Before installing the charge pipe, I want to replace a serpentine belt. Does anyone know how to change the serpentine belt? In advance, thank you for sharing your knowledge with us.
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