Mercedes S 420 2006 CDI Long

Mercedes S class 2005 4.0 diesel description

Sedan Mercedes S 420 2006 CDI Long has been produced from September, 2006 to January, 2009. It has eight-cylinder diesel engine with displacement of 4.0 litres, which produces power of 320 horsepower on 3600 rpm and torque 730 Nm (Newton metres) on 2200 revolutions per minute.

This 8-cylinder 32-valve engine camshaft is driven by double-row chain (What is an engine chain and belt? ). Engine has Common Rail fuel system and GTB1752VK turbine. The engine meets the Euro 4 emissions standard. Average engine life expectancy (mileage before serious repairs are needed) is from 280 000 to 480 000 kilometres. Note that engine life can be longer or shorter depending on maintenance.
More engine specs 
This Mercedes S class 4.0 engine oil type is 5W-30 and oil capacity is 10.5 litres.

Mercedes S 420 2006 CDI Long has classical rear wheel drive (RWD) and automatic gearbox with 7 gears.
Mercedes S 420 2006 CDI Long accelerates to speed 100 kilometres per hour in 6 seconds. The maximum speed of this car is 250 km/h.

The fuel consumption of this Mercedes S 420 2006 CDI Long in combined mode (combining urban and highway driving) is 9.6 litres per 100km (10.4 km/l), fuel consumption in city - 13.2 l/100km, highway fuel economy - 7.4 l/100km. Fuel tank capacity is 90 litres or 23.78 gallons, which gives a mileage up to 920 kilometers without refueling in urban cycle and even up to 1200 kilometers on highway.

Mercedes S class 2005

Mercedes S 420 2006 CDI Long technical data

Model: Mercedes S 420 2006 CDI Long
Body style: Sedan
Production period: 2006. September ... 2009. January 
Engine: 3996 cm3 Diesel, 8 cylinders CO2 emissions: 252 g/km
Power: 320 HP ON 3600 RPM Torque: 730 NM ON 2200 RPM
Gearbox: Automatic gearbox (7 gears) Drive type: Rear wheel drive (RWD)
Maximum speed: 250 km/h Acceleration 0-100 km/h: 6.0 seconds
Fuel consumption (l/100km): 9.6 (combined) 13.2 (urban) 7.4 (highway)
Fuel tank capacity: 90 litres (23.8 gallons)
Car dimensions: 5.21m (length) 1.87m (width) 1.47m (height)
Turning diameter: 12 meters
Trunk capacity: 560 litres
Gross weight: 2660 kg

Mercedes S 420 2006 CDI Long engine OM629

Engine reliability:

Overall, this engine can last around 280,000 to 480,000 km if properly maintained, using the correct quality oil and fuel, and carrying out regular checks and maintenance.
The engine has hydraulic valve tappets (lifters), which provide quieter operation and do not require periodic adjustment, but are more complex in design and can cause serious engine damage in the event of failure.
Engine displacement 3996 cm3
Number of cylinders 8
Bore (cylinder diameter) 86 mm
Stroke length (piston move) 86 mm
Compression ratio 17 : 1
Camshaft drive Double-row timing chain

Chain motors are considered more reliable, chain replacement usually is required less often than a timing belt, but they are often louder and vibrate more.

Fuel system Common Rail

Common rail fuel injection provides more engine power, is quieter, more environmentally friendly and offers better fuel economy, but is more expensive to maintain and repair.

Mercedes S 420 2006 CDI Long oil type 5W-30
Oil capacity 10.5 litres (11.1 quarts)
Power 306 - 320 HP ON 3600 RPM
Torque 700 - 730 NM ON 2200 RPM
Start of production (year) 2005
Duration of production 8 years

Often in the first years of production, engines tend to have various constructive problems, so it is recommended to choose a car with this engine from 2008 onwards.

Engine also used on Mercedes E klase Mercedes ML Mercedes GL

Generally, the use of an engine in several models and its long production run is an indication of the quality of the engine and the success of its design.

All Mercedes S class sedan [2005 - 2009] modifications

Modification Engine Power Consumption Drive type
Mercedes S 320 2005 CDI Dec 2005 — Sep 2008

Most fuel efficient diesel version

3.0 Diesel 235 HP 8.3 l/100km Rear wheel
Mercedes S 320 2005 CDI Long Dec 2005 — Sep 2008 3.0 Diesel 235 HP 8.4 l/100km Rear wheel
Mercedes S 320 2006 CDI 4Matic 4x4 Sep 2006 — Jan 2009

Most fuel efficient diesel version by real consumption

3.0 Diesel 235 HP 8.7 l/100km All wheel
Mercedes S 320 2006 CDI 4Matic Long 4x4 Sep 2006 — Jan 2009 3.0 Diesel 235 HP 8.9 l/100km All wheel
Mercedes S 350 2005

Most fuel efficient petrol version

3.5 Petrol 272 HP 10.1 l/100km Rear wheel
Mercedes S 350 2005 Long

Most fuel efficient petrol version

3.5 Petrol 272 HP 10.1 l/100km Rear wheel
Mercedes S 420 2006 CDI Sep 2006 — Jan 2009

Most powerfull diesel version (320 HP)

4.0 Diesel 320 HP 9.4 l/100km Rear wheel
Mercedes S 420 2006 CDI Long Sep 2006 — Jan 2009

Most powerfull diesel version (320 HP)

4.0 Diesel 320 HP 9.6 l/100km Rear wheel
Mercedes S 450 2006 Jul 2006 — Jan 2009 4.7 Petrol 340 HP 11.2 l/100km Rear wheel
Mercedes S 450 2006 Lang Jul 2006 — Jan 2009 4.7 Petrol 340 HP 11.0 l/100km Rear wheel
Mercedes S 450 2006 4Matic 4x4 Jul 2006 — Jan 2009 4.7 Petrol 340 HP 12.0 l/100km All wheel
Mercedes S 450 2006 4Matic Long 4x4 Jul 2006 — Jan 2009 4.7 Petrol 340 HP 11.7 l/100km All wheel
Mercedes S 500 2005 5.5 Petrol 388 HP 12.0 l/100km Rear wheel
Mercedes S 500 2005 Long 5.5 Petrol 388 HP 12.0 l/100km Rear wheel
Mercedes S 500 2006 4Matic 4x4 Jul 2006 — Jan 2009 5.5 Petrol 388 HP 12.0 l/100km All wheel
Mercedes S 500 2006 4Matic 4x4 Jul 2006 — Jan 2009 5.5 Petrol 388 HP 12.1 l/100km All wheel
Mercedes S 500 2006 4Matic Long 4x4 Jul 2006 — Jan 2009 5.5 Petrol 388 HP 12.0 l/100km All wheel
Mercedes S 600 2005 Long Dec 2005 — Jan 2009 5.5 Petrol 517 HP 14.0 l/100km Rear wheel
Mercedes S 65 2006 AMG Long Jun 2006 — Jan 2009

Most dynamic version - 100 km/h in 4.4 seconds

6.0 Petrol 612 HP 15.0 l/100km Rear wheel
Mercedes S 63 2006 AMG Nov 2006 — Jan 2009 6.2 Petrol 525 HP 15.0 l/100km Rear wheel
Mercedes S 63 2006 AMG Long Nov 2006 — Jan 2009 6.2 Petrol 525 HP 15.0 l/100km Rear wheel
Mercedes S class 2005 reviews
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