M271 vs OM606

Side-by-side reliability comparison

Higher reliability score
OM606 BEST 96/100
+61 points over M271
0 / 100
AVOID M271 Mercedes-Benz
0 / 100
BEST OM606 Mercedes-Benz

Specifications

M271
OM606
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
AVOID
BEST
Reliability
35
96
Years
2002--2014
1993--2001
Displacement
1796 cc
2996 cc
Layout
I4
I6
Type
Petrol Supercharged
Diesel
Power
184--204 hp
134--174 hp
Known Issues
3
2
Total Risk Cost
€2,300--€5,500
€280--€700

Character

M271

"Single-row timing chain stretches causing catastrophic failure. Avoid."

OM606

"Legendary. 500k+ miles documented. Tunable to 500hp. One of most reliable engines ever."

Issues Comparison

M271 3

◆ CRITICAL
Single-row timing chain stretch — catastrophic €1,500--€3,500 60,000 km--150,000 km
▲ HIGH
Supercharger clutch / belt failure €600--€1,500 80,000 km--150,000 km
● MODERATE
Valve cover gasket oil leak €200--€500 80,000 km--150,000 km

OM606 2

○ MINOR
Glow plug failure (only meaningful issue) €80--€200 80,000 km--∞
○ MINOR
Injection pump seal wear (age-related) €200--€500 200,000 km--∞

Models

M271 15

C-Class W202 1993--2000 E-Class W210 1995--2002 C-Class W202 1994--2000 C-Class W202 1996--2000 C-Class W204 2009--2014 E-Class W212 2009--2013 C-Class W204 2007--2014 C-Class W204 2007--2014 SLK R172 2011--2020 E-Class W211 2002--2009 SLK R171 2004--2011 C-Class W203 2002--2007 C-Class W203 2002--2007 CLK W209 2002--2009 CLK 200 Kompressor C209 2002--2009 Coupe

OM606 2

300D W124 1993--1997 Sedan E 300D W210 1995--2003 Sedan
Full M271 Report Full OM606 Report