BMW 3 Series G20 — Reliability
Reliability Summary
Engine
B58 — 89/100
BEST
Known Issues
7
Engine in this model
Known Issues Across All Engines
| Issue | Engine | Severity |
|---|---|---|
| Oil pump plastic ring cracks — oil pressure loss (2018-2022 engines) | B58 | high |
| Coolant loss — expansion tank or cap, electric water pump, low-temperature circuit | B58 | moderate |
| PCV diaphragm in the valve cover and valve cover gasket — oil smoke, oil leaks | B58 | moderate |
| VANOS solenoid wear | B58 | minor |
| Crankshaft guide bearing wear — early manual F30 340i (service action) | B58 | minor |
| Oil filter shears off in its housing | B58 | minor |
| Plastic charge pipe crack | B58 | minor |