BMW 118i 120i G20 G42 M135i M235i B48 Carbon Intake
BMW
2021
B48 2.0 Turbo
⚡ Quick Summary
Severity Level
Low
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟢 Low Priority
The B48 direct injection in M135i/M235i/118i G-series accumulates carbon on intake valves above 80,000 miles. Walnut blasting costs £300-500.
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 2021 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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