BMW 3 Series Throttle Body Failure — Rough Idle Stall
BMW
3 Series
2005
N52 Petrol
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
The electronic throttle body on N52-engined BMW 3 Series can develop actuator or position sensor faults causing rough idle, stalling and P2101/P2111. A throttle body adaptation reset via BMW coding software often resolves the issue. Hardware replacement costs £150-350.
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 3 Series 2005 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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