What are the most common BMW 3 Series problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2013 BMW 3 Series has 2 documented issues. The most frequently reported are: 2012-2013 335i/335is Overheat Warnings Need Coolant-Pump Diagnosis, Lower-Engine Whine Requires N20/N26 Timing-Chain Diagnosis. Of these, 2 are rated critical and should be addressed promptly.

What is the 2012-2013 BMW 3 Series 2012-2013 335i/335is Overheat Warnings Need Coolant-Pump Diagnosis?

BMW SIB 01 13 21 identifies 2012-2013 E92/E93 335i, 335is and specified xDrive coupe/convertible vehicles with N54T or N55 engines in the electric coolant-pump settlement population. The bulletin provides a diagnosis-and-repair path when a warning or fault is present; it does not… Severity: high.

What is the 2012-2015 BMW 3 Series Lower-Engine Whine Requires N20/N26 Timing-Chain Diagnosis?

BMW SIB 11 03 17 identifies specified F30, F31 and F34 3 Series variants with N20 or N26 engines produced through February 2015. A whining noise from the lower engine area that rises with engine speed can be associated with wear in the timing-chain or oil-pump drive-chain system;… Severity: high.

BMW · Known Issues

2013 BMW 3 Series Problems: 2 Known Issues

2013 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated July 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2013 BMW 3 Series has 2 documented known issues, with 2 rated critical. The most serious are 2012-2013 335i/335is Overheat Warnings Need Coolant-Pump Diagnosis and Lower-Engine Whine Requires N20/N26 Timing-Chain Diagnosis. DIY maintenance guides at au7o.io.

2013 BMW 3 Series Problems: 2 Known Issues

All 2 Known Issues

2012-2013 BMW 3 Series: 2012-2013 335i/335is Overheat Warnings Need Coolant-Pump Diagnosis#

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2012-2015 BMW 3 Series: Lower-Engine Whine Requires N20/N26 Timing-Chain Diagnosis#

Common Symptoms

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Frequently Asked Questions

What are the most common BMW 3 Series problems?

Is the BMW 3 Series reliable?

What is the 2012-2013 BMW 3 Series 2012-2013 335i/335is Overheat Warnings Need Coolant-Pump Diagnosis?

What is the 2012-2015 BMW 3 Series Lower-Engine Whine Requires N20/N26 Timing-Chain Diagnosis?