BMW 116d 118d F20 B37 Three-Cylinder Timing Chain
BMW
2015
B37 1.5d Three-Cyl
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
The B37 three-cylinder diesel in F20 116d/118d can develop timing chain rattle at cold start. Updated tensioner from BMW. Cost: £400-700.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this BMW 2015 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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