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Vehicle

Mercedes-Benz S-Class

Where Mercedes introduces technology first, which diagnostically means where new failure modes appear first. Air suspension, night vision, brake-by-wire — each arrived here years before the mainstream, with the module count to match.

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Mercedes-Benz S-Class
Alexander Migl · CC BY-SA 4.0 (external)

Generations

  • W221 2005–2013

    Air suspension and active body control; the first generation where a marginal battery reliably manufactures a screen of faults.

    Body styles
    Sedan
    Platform
    Mercedes W221
    Engines
    • 3.5 V6 — M272 · petrol · 205–225 kW (275–302 hp) · 350 Nm (258 lb-ft) · M272 and M276
    • 4.7 twin-turbo V8 — M278 · petrol · 320–335 kW (429–449 hp) · 700 Nm (516 lb-ft)
    • 5.5 V8 — M273 · petrol · 285 kW (382 hp) · 530 Nm (391 lb-ft)
    • 6.2 V8 — M156 · petrol · 386 kW (518 hp) · 630 Nm (465 lb-ft) · S 63 AMG, M156
    • 6.0 twin-turbo V12 — M275 · petrol · 450–463 kW (603–621 hp) · 1000 Nm (738 lb-ft) · S 65 AMG, M275
    • 3.0 V6 CDI — OM642 · diesel · 190 kW (255 hp) · 620 Nm (457 lb-ft)
    • 4.0 V8 CDI — OM629 · diesel · 235 kW (315 hp) · 730 Nm (538 lb-ft)
    • 5.5 turbo — M157 · petrol · 400–420 kW (536–563 hp) · 800–900 Nm (590–664 lb-ft)
    • 2.1 turbo — OM651 · diesel · 150 kW (201 hp) · 500 Nm (369 lb-ft)
    Transmissions
    7G-Tronic automatic · 5-speed 5G-Tronic automatic · 7-speed 7G-Tronic automatic
    Drivetrain
    Rear-wheel drive · 4MATIC four-wheel drive

  • W222 2013–2020

    Plug-in hybrid variants join, so the hybrid and charging blocks reach the nameplate.

    Body styles
    Sedan
    Platform
    Mercedes W222
    Engines
    • 3.0 straight-six mild hybrid — M256 · mild hybrid · 270–320 kW (362–429 hp) · 500–520 Nm (369–384 lb-ft)
    • 4.7 twin-turbo V8 — M278 · petrol · 335 kW (449 hp) · 700 Nm (516 lb-ft)
    • 4.0 twin-turbo V8 — M176 · petrol · 345–450 kW (463–603 hp) · 700 Nm (516 lb-ft) · S 63 AMG, M177
    • 6.0 twin-turbo V12 — M277 · petrol · 390 kW (523 hp) · 830 Nm (612 lb-ft) · S 65 AMG, M279
    • 3.0 straight-six diesel — OM656 · diesel · 210–250 kW (282–335 hp) · 600–700 Nm (443–516 lb-ft)
    • 3.0 V6 diesel — OM642 · diesel · 190 kW (255 hp) · 620 Nm (457 lb-ft)
    • 3.0 PHEV — plug-in hybrid · S 560 e
    • 2.0 turbo — M264 · petrol · 145–220 kW (194–295 hp) · 320–400 Nm (236–295 lb-ft)
    • 3.0 turbo — M276 · petrol · 245–270 kW (329–362 hp) · 480 Nm (354 lb-ft)
    • 5.5 turbo — M157 · petrol · 430 kW (577 hp) · 900 Nm (664 lb-ft)
    • 2.2 turbo — OM651 · hybrid · 150 kW (201 hp) · 500 Nm (369 lb-ft)
    • 2.9 turbo — petrol
    Transmissions
    7G-Tronic automatic · 9G-Tronic automatic · 7-speed 7G-Tronic automatic · 9-speed 9G-Tronic automatic
    Drivetrain
    Rear-wheel drive · 4MATIC four-wheel drive

  • W223 2020–present

    Rear-axle steering and a 48-volt system on most engines.

    Body styles
    Sedan
    Platform
    Mercedes MRA2
    Engines
    • 3.0 straight-six mild hybrid — M256 · mild hybrid · 270–320 kW (362–429 hp) · 450–600 Nm (332–443 lb-ft)
    • 4.0 twin-turbo V8 mild hybrid — M176 · mild hybrid · 370–450 kW (496–603 hp) · 700–900 Nm (516–664 lb-ft) · M176 and M177
    • 3.0 straight-six diesel — OM656 · mild hybrid · 210–250 kW (282–335 hp) · 600–750 Nm (443–553 lb-ft)
    • 3.0 PHEV — plug-in hybrid · S 580 e
    • 2.5 turbo — M256 · petrol
    • 6.0 turbo — M279 · petrol · 450–463 kW (603–621 hp) · 900–1000 Nm (664–738 lb-ft)
    • 4.0 turbo — M177 · petrol · 395–450 kW (530–603 hp) · 750–900 Nm (553–664 lb-ft)
    Transmissions
    9G-Tronic automatic
    Drivetrain
    Rear-wheel drive · 4MATIC four-wheel drive

Service information

Information, not instruction

CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.

Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.

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