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Technical data
Engine
̄ Engine
Model R 320 CDI 4MATIC (251.122)
1
R 350 (251.156)
1,2
R 350 4MATIC (251.165)
1
1
The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Light Truck Center for the corresponding data of all special bodies and special
equipment.
2
USA only.
Engine 642 272
Mode of operation Diesel 4-stroke engine 4-stroke engine, gasoline injection
No. of cylinders 6 6
Bore 3.27 in (83.00 mm) 3.66 in (92.90 mm)
Stroke 3.62 in (92.00 mm) 3.39 in (86.00 mm)
Total piston displacement 182 cu in (2987 cm
3
) 213 cu in (3498 cm
3
)
Compression ratio 17.7:1 10.7:1
Output acc. to SAE J 1349 215 hp/4000 rpm
(160 kW/4000 rpm)
268 hp/6000 rpm
3
(200 kW/6000 rpm)
3
Premium fuel required. Performance may vary with fuel octane rating.
Maximum torque acc. to SAE J 1349 400 lb-ft/1600 - 2400 rpm
(543 Nm/1600 - 2400 rpm)
258 lb-ft/2400 - 5000 rpm
(350 Nm/2400 - 5000 rpm)
Maximum engine speed 4500 rpm 6500rpm
Firing order 1-4-2-5-3-6 1-4-3-6-2-5
Poly-V-belt 2035 mm 2404mm