File · BMW-N20-TIMING-CHAIN

N20 / N26 timing-chain guide failure

Manufacturer

BMW

Years

2012–2015

Where people complain about this

Reddit reply — long

That sounds like the **N20 / N26 timing-chain guide failure** issue — it's a known defect on BMW 320i/328i/428i from 2012–2015.

Plastic timing-chain guides crack and disintegrate, often leading to total engine failure. Repair commonly $7K–$10K.

Source: Coba v. BMW of N. Am.; NHTSA complaints.

If you've taken it to the dealer 2+ times for the same thing, you might have a lemon-law case. I built a free tool that checks your specific car against active class actions and NHTSA records — defectfiles.com. Takes about 60 seconds, no signup. Worst case it tells you nothing's there.

Reddit reply — short

Sounds like the N20 / N26 timing-chain guide failure issue — well-documented defect on BMW 2012–2015, Coba v. BMW of N. Am.; NHTSA complaints. If your dealer's tried to fix it 2+ times you may have a case. Free 60-sec check at defectfiles.com.

Driving a BMW 320i? Run yours through the check.

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