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What Are the Main Reliability Issues of the BMW 3 Series?

Model: BMW Serie 3 F31, F30 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Checks and maintenance

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Video tutorial

In this brief and simple guide, you will learn the steps to discover the main reliability issues of the BMW 3 Series. In the diesel engine version, when replacing the timing belt, the guides tend to wear out as well; you must replace them when performing the timing belt service.

Another issue related to the diesel engine is that coolant leaks are frequently noticed due to gaskets hardening over time; additionally, when traveling at high speeds, some air may enter through the doors, caused by poor sealing of the gaskets.


Updated on 16 July 2026 by ScegliAuto


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by ScegliAuto

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