BMW M3 M4 F80 F82 S55 Rod Bearing Failure
BMW
3 Series
2014
S55 3.0 Twin Turbo
⚡ Quick Summary
Severity Level
High
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Can become a safety issue if left unresolved
Urgency Level
🟠 Fix Soon
The S55 twin turbo in F80 M3/F82 M4 has documented connecting rod bearing wear, particularly on track-driven or oil-change-extended examples. BMW issued updated bearing specification. Preventive bearing replacement costs £1,200-2,500. Signs: metallic noise from engine under load.
Onarım / Çözüm
No confirmed fixes yet. Share yours below.
⚠️ Yanlış Teşhis mi?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this BMW 3 Series 2014 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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