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BMW B47
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BMW B47
Verdict
SOLID · 64/100
Est. cost /3yr
€1,500-3,000 over 3 years depending on EGR cooler and injector condition at purchase
Oil interval
10,000 km
Recalls
1
Worst issue
EGR Cooler Failure / Coolant Leak
HIGHBMW B47
F20 · LCI
EGR Cooler Failure / Coolant Leak
€600-1,800
Timing Chain Guide Wear (Front-Mounted)
€400-1,200
Injector Seal Wear / Cold Start Diesel Clatter
€200-700
EGR Valve Carbon Fouling
€150-500
Boost Pipe / Intercooler Hose Whistle
€150-500
Oil Pressure Sensor / Variable Oil Pump Fault
€100-800
BMW B47
F20 · LCI
•Cold-start the engine and listen for both a metallic chain rattle and a separate diesel injector clatter, note whether either fades as the engine warms
•Check coolant level and colour, milky or low coolant with no external leak points to EGR cooler failure
•Scan the full ECU fault memory including stored and inactive codes for EGR, DPF, turbo, and oil pressure faults
•Test drive with hard acceleration and listen for whistling, which usually means a split intercooler or turbo inlet hose
•Check DPF status via OBD and ask about typical driving pattern, frequent short urban trips accelerate EGR and DPF fouling
•Verify full service history with oil change intervals no longer than 10,000 km
•Confirm the actual power output and turbo count (single vs bi-turbo) against the V5/logbook and engine code stamped on the block, since generic B47 spec sheets often mix up different power tunes
BMW B47
F20 · LCI
EGR cooler
Check for coolant seepage and confirm recall status before purchase, replace proactively if coolant level is dropping
80,000-140,000 km
Timing chain guides and tensioner (front-mounted)
Listen for cold-start rattle and have chain stretch checked by a specialist, replace guide and tensioner kit if worn, no engine removal required
100,000-160,000 km
Injector seals
Investigate any persistent cold-start clatter early to avoid seal leaks worsening
80,000-140,000 km
Intercooler and turbo inlet hoses
Inspect all boost hoses and clamps for splits or softening, replace any showing wear
50,000-100,000 km
BMW B47
F20 · LCI
EGR Cooler
Potential internal coolant leak from the EGR cooler, which can lead to coolant loss, overheating, and in rare cases engine bay fire risk. Affected close to 35,000 BMW and MINI vehicles under a DVSA recall.
BMW B47
F20 · LCI
✓Front-mounted timing chain is far more serviceable and less catastrophic than the N47's rear-mounted chain
✓Significant reliability improvement over the N47 predecessor overall
✓Map-controlled variable oil pump improves efficiency and reduces unnecessary pump wear
✓Strong torque for a 2.0L four-cylinder diesel in higher-output tunes
✓Common rail system well proven across the wider BMW diesel range
✓Good parts availability due to fitment across many BMW and MINI models
BMW B47
F20 · LCI
Real consumption
5 L/100km
Official consumption
Not available
Oil interval
10,000 km
Oil spec
BMW Longlife-04 approved 5W-30 or 0W-30 (e.g. Castrol Edge 5W-30 LL or Mobil 1 ESP 5W-30), avoid LL-01 spec oils for DPF longevity
Est. cost /3yr
€1,500-3,000 over 3 years depending on EGR cooler and injector condition at purchase
BMW B47
F20 · LCI
150 hp · 320 Nm
2015-2019
190 hp · 400 Nm
2015-2019
224 hp · 500 Nm
2014-present
The bi-turbo, 500 Nm, 228 hp spec attached to this record does not match a standard F20 118d, which uses the single-turbo 150 hp B47D20A. That higher output belongs to the B47D20O1 tune fitted to other BMW models like the X3 20d and 225d Active Tourer. When buying, confirm the actual engine code stamped on the block and the real power output on the V5 rather than relying on generic spec sheets. Mechanically, the single-turbo 118d is simpler with one fewer turbo actuator to fail, while the bi-turbo 120d and higher-output variants share the same EGR cooler and injector wear patterns but add turbo actuator complexity.