438 Technical dataEngineModel
SLK 280 (171.454)
1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
SLK 350 (171.456)
1
SLK 55 AMG (171.473)
1
Engine
272
272
113
Mode of operation
4-stroke engine, gasoline
injection
4-stroke engine, gasoline
injection
4-stroke engine, gasoline
injection
No. of cylinders
6
6
8
Bore
3.47 in (88.00 mm)
3.66 in (92.90 mm)
3.82 in (97.00 mm)
Stroke
3.24 in (82.20 mm)
3.39 in (86.00 mm)
3.60 in (92.00 mm)
Total piston displacement
182.8 cu in (2 996 cm
3)
213.5 cu in (3 498 cm
3)
331.8 cu in (5 439 cm
3)
Compression ratio
11.3:1
10.7:1
11:1
Output according to
SAE J 1349
228 hp / 6 000 rpm
2
(170 kW / 6 000 rpm)
268 hp / 6 000 rpm
2
(200 kW / 6 000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
355 hp / 5 750 rpm
2
(265 kW / 5 750 rpm)
Maximum torque according
to SAE J 1349
221 lb-ft / 2 700 - 5 000 rpm
(300 Nm / 2 700 - 5 000 rpm)
258 lb-ft / 2 400 - 5 000 rpm
(350 Nm / 2 400 - 5 000 rpm)
376 lb-ft / 4 000 rpm
(510 Nm / 4 000 rpm)
Maximum engine speed
6500 rpm
6 500 rpm
6700 rpm
Firing order
1-4-3-6-2-5
1-4-3-6-2-5
1-5-4-2-6-3-7-8
Poly-V-belt
2404 mm
2 404 mm
2380 mm
