BMW 1 Series F20 — Reliability
Reliability Summary
Engine
N55 — 79/100
BUY
Known Issues
9
Engine in this model
Known Issues Across All Engines
| Issue | Engine | Severity |
|---|---|---|
| VANOS solenoids and VANOS housing bolts (recall 2010-2012) | N55 | moderate |
| Oil filter housing gasket (OFHG) leak | N55 | moderate |
| Valve cover gasket and PCV valve in the cover — oil leaks, oil consumption | N55 | moderate |
| Intake valve carbon build-up (direct injection) | N55 | moderate |
| Electric water pump failure | N55 | moderate |
| High-pressure fuel pump failure — mainly 2010-2011 engines | N55 | moderate |
| Turbo wastegate rattle | N55 | minor |
| Coolant pipe / banjo bolt seals | N55 | minor |
| Plastic charge pipe crack | N55 | minor |