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Mercedes-Benz S-Class W223 (2020–present): specs

Mercedes-Benz S-Class W223 (2020–present) photo
Photo: Dinkun Chen, Wikimedia Commons, CC BY-SA 4.0

The Mercedes-Benz S-Class W223 is a sedan in production since 2020. It is the 5th of 5 generations of the S-Class in our catalog.

Engines: 3.0 Turbo (S500) (M256), 435 hp. Transmission: automatic; all-wheel drive. Length 5,179 mm, wheelbase 3,106 mm, fuel tank 76 L.

No facelift so far. Sold in Kazakhstan, Russia, Kyrgyzstan.

Specifications

Production years2020–present
Bodysedan
Engine3.0 Turbo (S500)
Engine codeM256
Displacement3 L
Fuelpetrol
Power435 hp
Torque520 Nm
Transmissionautomatic, 9-speed
Gearbox model9AT 9G-Tronic
Driveall-wheel drive
Length5,179 mm
Width1,954 mm
Height1,503 mm
Wheelbase3,106 mm
Fuel tank76 L

Vehicle tax in Kazakhstan

EngineUnder 10 years
3.0 Turbo (S500)≈ 42,425 ₸

Approximate annual vehicle tax for 2026 (due by 1 April 2027), based on the 2026 MRP of 4,325 ₸. The exact amount depends on the engine displacement in the registration certificate and the year of manufacture. Exact calculator (in Russian) →

Mild hybrid

Pros and cons

Pros

  • Powerful versions: up to 435 hp
  • Conventional automatic, no robotized gearbox or CVT
  • Large fuel tank: 76 L
  • Currently in production — can be bought new

Cons

  • Engine Mercedes M254/M256/M276/M278/M176: complex engines, expensive to repair
  • Gearbox Mercedes 9G-Tronic: jerky shifts when worn, software updates

Common problems and what to check

Engine: Mercedes M254/M256/M276/M278/M176

  • engines are complex and expensive to repair; oil leaks and chain issues occur on M276/M278 at high mileage

What to check when buying: dealer service history; chain noise.

Tip: Service with specialists, oil MB 229.5 or higher.

Gearbox: Mercedes 9G-Tronic

  • jerks when worn, software updates

What to check when buying: shift smoothness.

Tip: Oil every 60–80k km.

Based on owner and workshop reports. A specific car may differ — get a pre-purchase inspection.

Tyre and wheel sizes

Factory sizes: tyres 235/55R18, 255/50R18, 255/45R19, 255/40R20; bolt pattern 5x112. All sizes, offsets and centre bore →

Compare with rivals

FAQ

What engine does the Mercedes-Benz S-Class W223 have?

3.0 Turbo (S500), code M256, 435 hp, 520 Nm.

What transmission does it have?

automatic (9AT 9G-Tronic).

What are the ground clearance and fuel tank size?

Fuel tank 76 l.

How much is the vehicle tax on the Mercedes-Benz S-Class W223 in Kazakhstan?

For 2026, about 42,425 ₸ for a car under 10 years old (base engine). Cars aged 10–20 years get a 0.7 coefficient, cars over 20 years a 0.5 coefficient.

Other generations

All makes and models →