OM654 vs OM606

Side-by-side reliability comparison

Higher reliability score
OM606 BEST 96/100
+11 points over OM654
0 / 100
BEST OM654 Mercedes-Benz
0 / 100
BEST OM606 Mercedes-Benz

Specifications

OM654
OM606
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
BEST
BEST
Reliability
85
96
Years
2016--present
1993--2001
Displacement
1950 cc
2996 cc
Layout
I4
I6
Type
Diesel
Diesel
Power
150--245 hp
134--174 hp
Known Issues
2
2
Total Risk Cost
€500--€1,500
€280--€700

Character

OM654

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

OM606

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

Issues Comparison

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

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

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

OM606 2

300D W124 1993--1997 Sedan E 300D W210 1995--2003 Sedan
Full OM654 Report Full OM606 Report