Page 437 of 473
436 Technical data
Rims and tires
ModelSLK 280 (Sport Package*)
SLK 350 (Sport Package*)
SLK 55 AMGSLK 55 AMG
SLK 55 AMG (Performance Package*)
Rims (light alloy)7.5 J x 17 H27.5 J x 18 H2
Wheel offset1.46 in (37 mm)1.46 in (37 mm)
Winter tires1,2,3
1Radial-ply tires2Not available as factory equipment.3For use with snow chains contact an authorized Mercedes-Benz Center.
205/50 R17 89H M+S.
or
225/45 R17 91H M+S.225/40 R18 92H XL (Extra Load) M+S. 
         
        
        
     
        
        Page 438 of 473
437 Technical data
Rims and tires
Mixed size tires
ModelSLK 280SLK 280*
SLK 280 (Appearance Package*)
SLK 350
SLK 350 (Appearance Package*)
Front axle:
Rims (light alloy)7Jx16 H27.5 J x 17 H2
Wheel offset1.34 in (34 mm)1.42 in (36 mm)
Summer tires1205/55 R16 91V225/45 R17 91W
or
225/45 R17 91W MOExtended*
2
Rear axle:
Rims (light alloy)8J x16 H28.5 J x17 H2
Wheel offset1.18 in (30 mm)1.18 in (30 mm)
Summer tires1,3225/50 R16 92V245/40 R17 91W
or
245/40 R17 91W MOExtended*
2
1Radial-ply tires2Must be used in conjunction with Run Flat Indicator* only.3Must not be used with snow chains. 
         
        
        
     
        
        Page 439 of 473
438 Technical data
Rims and tires
ModelSLK 280 (Sport Package*)
SLK 350 (Sport Package*)SLK 55 AMG
SLK 55 AMG (Performance Package*)
Front axle:
AMG rims (light alloy)7.5 J x 17 H27.5 J x 18 H2
Wheel offset1.46 in (37 mm)1.46 in (37 mm)
Summer tires1,3
1Radial-ply tires
225/45 ZR17 91Y
or
225/45 R17 91W MOExtended*
2
2Must be used in conjunction with Run Flat Indicator* only.
225/40 ZR18 92Y XL (Extra Load)
Rear axle:
AMG rims (light alloy)8.5 J x17 H28.5 J x18 H2
Wheel offset1.18 in (30 mm)1.18 in (30 mm)
Summer tires1,3
3Must not be used with snow chains.
245/40 ZR17 91Y
or
245/40 R17 91W MOExtended*
2
245/35 ZR18 92Y XL (Extra Load) 
         
        
        
     
        
        Page 440 of 473

439 Technical data
Rims and tires
Spare wheel with collapsible tire
ModelAll models 
(except SLK 55 AMG with Performance Package*)
Rim (light alloy)4.5 B x 17 H2
Wheel offset0.47 in (12 mm)
Collapsible tire145/70-17 92P1
1Must not be used with snow chains.
!Please compare the recommended tire 
inflation pressure for your vehicle with the tire 
inflation pressure on the yellow label located on 
the spare wheel rim.
If the tire inflation pressure on the yellow label 
on the spare wheel rim differs from the values 
given in this Operator’s Manual, inflate the 
collapsible tire to the recommended tire inflation 
pressure given on the yellow label on the spare 
wheel rim.iPlease note that the tire inflation pressure of 
the collapsible tire differs from the tire inflation 
pressure of the road tires.
Inflate the collapsible tire to approximately 
51 psi (3.5 bar).
iThe SLK 55 AMG with Performance 
Package* does not have a spare wheel. The 
SLK 55 AMG with Performance Package* is 
equipped with TIREFIT (
page 401). 
         
        
        
     
        
        Page 441 of 473
440 Technical data
Electrical system
ModelSLK 280SLK 350SLK 55 AMG
Generator (alternator)14 V/150 A14 V/150 A14 V/150 A
Starter motor12 V/1.4 kW12 V/1.4 kW12 V/1.7 kW
Battery12 V/74 Ah12 V/74 Ah12 V/74 Ah
Spark plugsNGK PLKR 6ABosch Platin Y 7 MPP33
NGK PLKR 6ANGK IFR6D10
Electrode gap0.031 in (0.8 mm)0.031 in (0.8 mm)0.039 in (1.0 mm)
Tightening torque15 – 22 lb-ft (20 – 30 Nm)15 – 22 lb-ft (20 – 30 Nm)18 – 22 lb-ft (25 – 30 Nm) 
         
        
        
     
        
        Page 442 of 473
441 Technical data
Main Dimensions
Main Dimensions
ModelSLK 280SLK 350SLK 55 AMG
Overall vehicle length161.0 in (4 089 mm)161.0 in (4 089 mm)161.1 in (4 093 mm)
Overall vehicle width77.5 in (1 969 mm)77.5 in (1 969 mm)77.5 in (1 969 mm)
Overall vehicle height51.0 in (1 296 mm)51.1 in (1 298 mm)50.6 in (1 286 mm)
Overall vehicle height when 
opening/closing hardtop60.8 in (1 544 mm)60.8 in (1 544 mm)60.4 in (1 534 mm)
Wheelbase95.7 in (2 430 mm)95.7 in (2 430 mm)95.7 in (2 430 mm)
Track, front60.2 in (1 530 mm)60.1 in (1 526 mm)60.0 in (1 524 mm)
Track, rear61.0 in (1 549 mm)61.0 in (1 549 mm)61.0 in (1 549 mm)
Turning circle34.5 ft (10.51 m)34.5 ft (10.51 m)34.5 ft (10.51 m) 
         
        
        
     
        
        Page 443 of 473
442 Technical data
Weights
ModelSLK 280
SLK 350SLK 55 AMG
Maximum roof load110 lb (50 kg)110lb (50kg)
Maximum trunk load220 lb (100 kg)220 lb (100 kg)
!This vehicle is not designed to carry items 
on its roof. Roof rails and any roof-mounted de-
vices, unless expressly approved by 
Mercedes-Benz for use on this vehicle model, 
must not be used as they will damage the vehicle 
and retractable hardtop.
At time of printing, Mercedes-Benz does not 
offer any roof racks or any other roof-mounted 
devices for use on this vehicle.!This vehicle is not designed to carry any 
items on its trunk lid or accommodate any type 
of trunk lid rack or device. Using such devices 
may damage the vehicle and retractable hardtop 
mechanism. 
         
        
        
     
        
        Page 444 of 473

443 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective 
lubricants must match. Therefore, only use 
products tested and approved by 
Mercedes-Benz.
Please refer to the Factory Approved 
Service Products pamphlet (USA only), or 
inquire at an authorized Mercedes-Benz 
Center.
Warning!G
Comply with all valid regulations with 
respect to handling, storing and disposing 
of service fluids. Otherwise you could 
endanger persons or the environment.
Keep service fluids out of the reach of 
children.
For health reasons, you should prevent 
service fluids from coming into direct 
contact with you skin or clothing.
If a service fluid is swallowed, contact a 
physician immediately.
ModelCapacityFuels, coolants, lubricants etc.
Engine with oil filterAll models8.5 US qt (8.0 l)Approved engine oils
Automatic transmission*SLK 280, SLK 3509.5 US qt (9.0 l)MB Automatic Transmission Fluid
SLK 55 AMG9.2 US qt (8.7 l)
Manual transmissionSLK 280, SLK 3501.6 US qt (1.5 l)MB Manual Transmission Oil
Rear axleSLK 2801.1 US qt (1.0 l)Hypoid gear oil SAE 85 W 90
SLK 3501.2 US qt (1.1 l)
SLK 55 AMG1.3 US qt (1.2 l)