M271 vs OM654

Side-by-side reliability comparison

Higher reliability score
OM654 BEST 85/100
+50 points over M271
0 / 100
AVOID M271 Mercedes-Benz
0 / 100
BEST OM654 Mercedes-Benz

Specifications

M271
OM654
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
AVOID
BEST
Reliability
35
85
Years
2002--2014
2016--present
Displacement
1796 cc
1950 cc
Layout
I4
I4
Type
Petrol Supercharged
Diesel
Power
184--204 hp
150--245 hp
Known Issues
3
2
Total Risk Cost
€2,300--€5,500
€500--€1,500

Character

M271

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

OM654

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

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

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 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

OM654 47

B-Class W246 2012--2018 A-Class W176 2012--2018 GLA X156 2014--2020 A-Class W176 2016--2018 C-Class W205 2017--2018 C-Class W205 2018--2021 GLC X253 2019--2022 E-Class W213 2016--2023 GLC X253 2019--2022 E-Class W213 2016--2023 GLE W167 2019--present E-Class W213 2018--2023 C-Class W205 2018--2021 C-Class W205 2018--2021 GLC X253 2019--2022 GLC X254 2022--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 C-Class W206 2021--present GLC X254 2022--present E-Class W214 2024--present CLA C118 2019--present A-Class W177 2019--2025 CLA C118 2019--present B-Class W247 2019--2023 GLA H247 2020--present GLA H247 2020--present A-Class W177 2018--2025 E-Class W213 2018--2023 S-Class W222 2018--2020 GLE W167 2019--present E-Class W213 2018--2023 G-Class W463 2nd 2018--present E-Class W214 2024--present G-Class W463 2nd 2019--present G-Class W463 2nd 2024--present S-Class W222 2018--2020 S-Class W222 2017--2020 S-Class W223 2020--present GLE W167 2019--present S-Class W223 2020--present C 220d Wagon S205 2014--2021 Wagon E 220d Wagon S213 2016--2024 Wagon GLC 220d Coupe C253 2016--2023 SUV
Full M271 Report Full OM654 Report