Mercedes-Benz CLS-Class 4-Door Coupé (C257) · CLS

C257

Third-generation four-door coupé elegance.

Production
2019
Body
Coupé
Chassis
C257
Mercedes-Benz CLS-Class 4-Door Coupé (C257) (C257)

The four-door coupé grew up — the second-generation CLS on the C257 chassis traded the original's shock-value styling for a more refined, more technologically advanced interpretation of the format Mercedes-Benz had invented.

Launched in 2018, the C257 CLS shared the MRA platform with the E-Class and adopted a cleaner, more sculptural body with frameless side windows and a fastback profile moderated for better rear accommodation. Turbocharged inline-six and V8 engines — including the CLS 53 AMG with EQ Boost mild-hybrid assistance — powered a car positioned as a design-led alternative to the conventional E-Class saloon. The widescreen MBUX cockpit and advanced driver-assistance systems reflected the CLS's role as a technology showcase.

Built from 2018 to 2023, the C257 CLS represented the second and final iteration of Mercedes-Benz's original four-door coupé concept — a more mature car that proved the format could evolve beyond its novelty origins.

C257 interior
Cabin details of the C257, as preserved in period photography.

Every model.

6 model designations for 2019 — engines, chassis codes and production figures for the C257.

ModelloModel yearTelaioMotoreCambioTotale
CLS 220 d2019–257.314654.920 —
CLS 300 d2019–257.318654.920 —
CLS 350 d 4MATIC2019–257.321656.929 —
CLS 400 d 4MATIC2019–257.323656.929 —
CLS 3502019–257.350264.920 —
CLS 450 4MATIC2019–257.359256.930 —
C257 side profile
Studio profile of the C257 — the proportions that defined this chassis.
C257 rear three-quarter view
Rear three-quarter view of the C257.

Engines.

Four- and six-cylinder diesels and petrols — the OM654, OM656, M264 and M256 — as fitted to the C257.

OM654

Inline-4 diesel
  • 654.920 CLS 220 d1.9 L · 1,950 cc

    194 PS

    143 kW · 191 hp a 3,800 giri/min

    400 N·m

    295 lb·ft a 1,600 giri/min

  • 654.920 CLS 300 d1.9 L · 1,950 cc

    245 PS

    180 kW · 242 hp a 4,200 giri/min

    500 N·m

    369 lb·ft a 1,600 giri/min

OM656

Inline-6 diesel
  • 656.929 CLS 350 d2.9 L · 2,925 cc

    286 PS

    210 kW · 282 hp a 4,600 giri/min

    600 N·m

    443 lb·ft a 1,200 giri/min

  • 656.929 CLS 400 d2.9 L · 2,925 cc

    340 PS

    250 kW · 335 hp a 4,400 giri/min

    700 N·m

    516 lb·ft a 1,200 giri/min

M264

Inline-4
  • 264.920 2.0 L · 1,991 cc

    299 PS

    220 kW · 295 hp a 5,800 giri/min

    400 N·m

    295 lb·ft a 3,000 giri/min

M256

Inline-6
  • 256.930 3.0 L · 2,999 cc

    367 PS

    270 kW · 362 hp a 5,500 giri/min

    500 N·m

    369 lb·ft a 1,600 giri/min