BMW F30 3 Series B47 EGR Valve Carbon Fouling
BMW
3 Series
2015
B47 2.0d
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟡 Monitor Closely
The B47 diesel in F30 318d/320d develops EGR carbon fouling above 80,000 miles causing limp mode and P0400 codes. Less frequent than N47 but still a maintenance item. Cleaning costs £150-280.
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 2015 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🚗 More About This Vehicle
Explore more BMW models
📖 Related Repair Guides
Help other owners by sharing your experience.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.