Mercedes-Benz CLS-Class (C257)
Maintenance specs for 1 variant of the Mercedes-Benz CLS-Class (C257) — from 2018 to 2021.
2018–2021 Mercedes-Benz CLS-Class (C257)
3.0L Turbo I6 + EQ Boost (M256) · AWD (4MATIC)
362 hp / 369 lb-ft
Transmission
Type9-Speed Automatic (9G-TRONIC)
FluidMB 236.17
Drain & fill7 qt
Full capacity9.5 qt
Power Steering
TypeElectric (no fluid)
Differentials
Rear fluidMB 235.74
Rear capacity1.6 qt
Transfer Case
FluidMB 236.13
Capacity1 qt
Fuel
Tank21.1 gal
TypePremium 91
Service Intervals
Oil change10,000 mi
Trans service60,000 mi
Coolant flush60,000 mi
Brake fluid20,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter30,000 mi
Cabin filter20,000 mi
Drive belt60,000 mi