2025
1 engine option
3.0L I6 Turbo M256
Mercedes-Benz CLS450 C257
7 generations · 7 engine options · data across all years of the CLS450 C257 platform.
3,395
Labor times
20,524
Torque specs
7,819
DTC codes
0
Repair procedures
56
Fluid specs
0
Open recalls
5-Year Cost of Ownership · 2025 3.0L I6 Turbo M256
$10,725
~$2,145/yr maintenance labor at $150/hr. Other engines/years vary — pick a generation below to see its breakdown.
Generations & engine options
Become a Founding Sponsor
Your name on every Mercedes-Benz CLS450 C257 procedure
For $99, we generate the full step-by-step repair set for the 2025 3.0L I6 Turbo M256 — free for everyone, forever, with your name on it.