Mercedes-Benz S-Class W220 — Reliability

W220 2002–2005 1 engine

Reliability Summary

Engine OM648 — 84/100 BUY
Known Issues 2

Engine in this model

BUY 84

OM648

3.2L CDI Diesel I6

The 2002-2006 3.2 CDI straight-six in the W211 E 320 CDI and W220 S 320 CDI - successor to the OM613...

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Known Issues Across All Engines

Issue Engine Severity Onset
EGR valve fouling (city use) OM648 moderate 129,000 km
Injector seal leaks (black death) and glow plugs OM648 minor 160,000 km