M264 vs M104

Side-by-side reliability comparison

Higher reliability score
M104 BEST 85/100
+7 points over M264
0 / 100
BUY M264 Mercedes-Benz
0 / 100
BEST M104 Mercedes-Benz

Specifications

M264
M104
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
BUY
BEST
Reliability
78
85
Years
2017--present
1990--1997
Displacement
1991 cc
3199 cc
Layout
I4
I6
Type
Petrol Turbo
Petrol Na
Power
184--258 hp
193--231 hp
Known Issues
2
1
Total Risk Cost
€750--€2,500
€500--€2,000

Character

M264

"M274 evolution with 48V mild hybrid. More refined, fewer known issues."

M104

"W124/R129/W140 inline-6. One of Mercedes' most reliable engines. Bulletproof bottom end. Wiring harness biodegrades (uses soy-based insulation). Head gasket solid. 400k+ km possible."

Issues Comparison

M264 2

● MODERATE
Thermostat failure (inherited from M274) €250--€500 60,000 km--130,000 km
● MODERATE
EQ Boost 48V mild hybrid system complexity €500--€2,000 80,000 km--150,000 km

M104 1

▲ HIGH
Wiring harness biodegradation €500--€2,000 100,000 km--200,000 km

Models

M264 12

E-Class W214 2024--present C-Class W206 2021--present GLC X254 2022--present E-Class W214 2024--present E-Class W213 2019--2023 C-Class W205 2018--2021 GLC X253 2019--2022 E-Class W213 2020--2023 C-Class W205 2018--2021 C-Class W205 2018--2021 A 250 W177 2018--2024 Hatchback E 200 Wagon S213 2016--2024 Wagon

M104 0

No models listed.

Full M264 Report Full M104 Report