M271 EVO (CGI turbo) vs OM648

Side-by-side reliability comparison

Higher reliability score
OM648 BEST 90/100
+32 points over M271 EVO (CGI turbo)
0 / 100
CAUTION M271 EVO (CGI turbo) Mercedes-Benz
0 / 100
BEST OM648 Mercedes-Benz

Specifications

M271 EVO (CGI turbo)
OM648
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
CAUTION
BEST
Reliability
58
90
Years
2009--2015
2002--2006
Displacement
1796 cc
3222 cc
Layout
I4
I6
Type
Petrol Turbo
Diesel
Power
156--204 hp
204 hp
Known Issues
3
2
Total Risk Cost
€1,950--€5,500
€450--€1,100

Character

M271 EVO (CGI turbo)

"Turbo CGI successor to the Kompressor. Toothed chain fixed the stretch problem, but camshaft adjusters and tensioner wear early — Mercedes extended the adjuster warranty to 10 years in the US. Budget for the timing job."

OM648

"Modern OM606 successor. Excellent highway cruiser. Strong torque."

Issues Comparison

M271 EVO (CGI turbo) 3

◆ CRITICAL
Camshaft adjuster and tensioner wear — timing drift, chain can jump €1,500--€4,000 50,000 km--160,000 km
● MODERATE
Camshaft sensor magnets leak oil into wiring harness and ECU €150--€800 N/A--N/A
● MODERATE
Intake-valve carbon build-up (direct injection) €300--€700 80,000 km--130,000 km

OM648 2

● MODERATE
EGR valve fouling (city use) €300--€700 80,000 km--160,000 km
○ MINOR
Glow plugs + injector seals €150--€400 80,000 km--160,000 km

Models

M271 EVO (CGI turbo) 5

C-Class W204 2009--2014 C-Class W204 2009--2014 SLK R172 2011--2015 E-Class W212 2009--2013 C-Class W204 2009--2014

OM648 6

C-Class W203 2002--2005 E-Class W210 2002--2002 E-Class W210 2002--2002 S-Class W220 2002--2002 S-Class W220 2002--2005 E 320 CDI W211 2002--2009 Sedan
Full M271 EVO (CGI turbo) Report Full OM648 Report