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Mercedes-Benz S-Class S 420 CDI Long

SedanDieselAutomaticRWDYear 2006G
320
Horsepower · 235 kW
6.0s
0–100 km/h
250
km/h top speed
9.6
l/100 km

The Mercedes-Benz S-Class S 420 CDI Long is a sedan powered by a diesel engine delivering 320 hp (235 kW). It accelerates from 0 to 100 km/h in 6.0 s and reaches a top speed of 250 km/h. Fuel efficiency stands at 9.6 l/100 km combined, CO₂ emissions of 252 g/km. Drive is routed to the rear-wheel-drive axle via an automatic. This variant was introduced in 2006 as part of the Mercedes-Benz S-Class W221 (2005-2009) generation, and sits alongside 3 other variants in this generation. Full specifications — including engine displacement, transmission type, dimensions, weight, and historical list price — are available on the specifications page.

Updated Jun 2026 · Data curated by Cars-Data.com
Quick answers
What is the engine power of the Mercedes-Benz S-Class S 420 CDI Long?

The Mercedes-Benz S-Class S 420 CDI Long produces 320 hp (235 kW).

How fast does the Mercedes-Benz S-Class S 420 CDI Long accelerate from 0 to 100 km/h?

The Mercedes-Benz S-Class S 420 CDI Long accelerates from 0 to 100 km/h in 6.0 seconds.

What is the top speed of the Mercedes-Benz S-Class S 420 CDI Long?

The top speed of the Mercedes-Benz S-Class S 420 CDI Long is 250 km/h.

What is the fuel consumption of the Mercedes-Benz S-Class S 420 CDI Long?

The Mercedes-Benz S-Class S 420 CDI Long has a combined fuel consumption of 9.6 l/100 km.

What are the CO₂ emissions of the Mercedes-Benz S-Class S 420 CDI Long?

The Mercedes-Benz S-Class S 420 CDI Long emits 252 g/km of CO₂.

What transmission does the Mercedes-Benz S-Class S 420 CDI Long have?

The Mercedes-Benz S-Class S 420 CDI Long is equipped with a Automatic transmission.

Is the Mercedes-Benz S-Class S 420 CDI Long front, rear, or all-wheel drive?

The Mercedes-Benz S-Class S 420 CDI Long sends power through the REAR WHEEL DRIVE drivetrain.

What is the engine size of the Mercedes-Benz S-Class S 420 CDI Long?

The Mercedes-Benz S-Class S 420 CDI Long has a 3,996 cc engine with 8 cylinders.

What is the torque of the Mercedes-Benz S-Class S 420 CDI Long?

The Mercedes-Benz S-Class S 420 CDI Long produces 730 Nm of torque.

When was the Mercedes-Benz S-Class S 420 CDI Long introduced?

The Mercedes-Benz S-Class S 420 CDI Long was introduced in 2006.