BMW 325i E46 — Reliability

E46 Sedan Compact 2000–2006 1 engine

Reliability Summary

Engine M54 — 93/100 BEST
Known Issues 4

Engine in this model

BEST 93

M54

2.2-3.0L NA I6

Peak old-school BMW. Raspy, high-revving, raw. The benchmark. 300k+ km routine.

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Known Issues Across All Engines

Issue Engine Severity Onset
Cooling plastics — water pump impeller critical M54 moderate 80,000 km – 150,000 km
DISA valve failure (intake manifold flap) M54 moderate 80,000 km – 160,000 km
Double VANOS oil seal wear M54 moderate 100,000 km – 180,000 km
Valve cover gasket oil leak M54 minor 100,000 km – 200,000 km