M271 EVO (CGI turbo) vs OM654

Side-by-side reliability comparison

Higher reliability score
OM654 BEST 85/100
+27 points over M271 EVO (CGI turbo)
0 / 100
CAUTION M271 EVO (CGI turbo) Mercedes-Benz
0 / 100
BEST OM654 Mercedes-Benz

Specifications

M271 EVO (CGI turbo)
OM654
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
CAUTION
BEST
Reliability
58
85
Years
2009--2015
2016--present
Displacement
1796 cc
1950 cc
Layout
I4
I4
Type
Petrol Turbo
Diesel
Power
156--204 hp
150--245 hp
Known Issues
3
2
Total Risk Cost
€1,950--€5,500
€500--€1,500

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."

OM654

"Best modern MB diesel. Aluminium block, low friction. Long-distance champion."

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

OM654 2

○ MINOR
DPF — better than older MB diesels but still diesel €300--€1,000 80,000 km--150,000 km
○ MINOR
Minor EGR fouling (best-in-class but not immune) €200--€500 100,000 km--180,000 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

OM654 47

A-Class W176 2016--2018 A-Class W176 2016--2018 GLA X156 2016--2020 B-Class W246 2016--2018 C-Class W205 2017--2018 GLC X253 2019--2022 C-Class W205 2018--2021 C-Class W205 2018--2021 C-Class W205 2018--2021 GLC X253 2019--2022 GLC X253 2019--2022 E-Class W213 2016--2023 E-Class W213 2016--2023 E-Class W213 2018--2023 GLE W167 2019--present C-Class W206 2021--present E-Class W214 2024--present C-Class W206 2021--present E-Class W214 2024--present GLC X254 2022--present C-Class W206 2021--present E-Class W214 2024--present GLC X254 2022--present GLC X254 2022--present A-Class W177 2019--2025 GLA H247 2020--present CLA C118 2019--present A-Class W177 2018--2025 CLA C118 2019--present GLA H247 2020--present B-Class W247 2019--2023 E-Class W214 2024--present S-Class W222 2017--2020 S-Class W222 2018--2020 GLE W167 2019--present G-Class W463 2nd 2019--present E-Class W213 2018--2023 GLE W167 2019--present E-Class W213 2018--2023 S-Class W222 2018--2020 S-Class W223 2020--present S-Class W223 2020--present G-Class W463 2nd 2018--present G-Class W463 2nd 2024--present C 220d Wagon S205 2014--2021 Wagon E 220d Wagon S213 2016--2024 Wagon GLC 220d Coupe C253 2016--2023 SUV
Full M271 EVO (CGI turbo) Report Full OM654 Report