2005 MERCEDES-BENZ SLK CLASS Owners Manual

417 Technical data
Rims and tires
SLK 55 AMG
Front axle:Rims (light alloy)
71/2Jx18 H2
Wheel offset
1.46 in (37 mm)
Summer tires (radial-ply tires)
225/40 ZR18 92Y XL (Extra Load)
Rear axle:Rims (light alloy)
81/2 J x18 H2
Wheel offset
1.18 in (30 mm)
Summer tires (radial-ply tires)
245/35 ZR18 92Y XL (Extra Load)
1
1Must not be used with snow chains.

418 Technical dataRims and tiresSpare wheel with collapsible tire
All models
Rim (light alloy)
4.5 B x 17 H2
Wheel offset
0.47 in (12 mm)
Collapsible tire
145/70-17 92P
1
1Must not be used with snow chains.iPlease note that the tire inflation
pessure of the collapsible tire differs
from the tire inflation pressure of the
road tires.
Inflate the collapsible tire to approxi-
mately 51 psi (3.5 bar).

419 Technical data
Electrical system
Electrical system
Model
SLK 350
SLK 55 AMG
Generator (alternator)
14 V/150 A
14 V/150 A
Starter motor
12 V/1.7 kW
12 V/1.7 kW
Battery
12 V/74 Ah
12 V/74 Ah
Spark plugs
Bosch Platin Y 7 MPP33
NGK PLKR 6A
NGK IFR6D10
Electrode gap
0.031 in (0.8 mm)
0.039 in (1.0 mm)
Tightening torque
15 – 22 lb-ft (20 – 30 Nm)
18 – 22 lb-ft (25 – 30 Nm)

420 Technical dataMain DimensionsModel
SLK 350
SLK 55 AMG
Overall vehicle length
160.7 in (4 082 mm)
160.9in (4087mm)
Overall vehicle width
70.4 in (1 788 mm)
70.6 in (1 794 mm)
Overall vehicle height
51.1 in (1 298 mm)
50.0 in (1 271 mm)
Wheelbase
95.7 in (2 430 mm)
95.7 in (2 430 mm)
Track, front
60.0 in (1526 mm)
60.0 in (1 524 mm)
Track, rear
61.0 in (1549 mm)
61.0 in (1 549 mm)

421 Technical data
Weights
Weights
Model
SLK 350
SLK 55 AMG
Maximum roof load
110lb (50kg)
110 lb (50 kg)
Maximum trunk load
220 lb (100 kg)
220 lb (100 kg)
!This vehicle is not designed to carry
items on its roof. Roof rails and any
roof-mounted devices, unless express-
ly 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 accommo-
date any type of trunk lid rack or de-
vice. Using such devices may damage
the vehicle and retractable hardtop
mechanism.

422 Technical dataFuels, coolants, lubricants, etc.CapacitiesVehicle components and their respective
lubricants must match. Therefore, only use
products tested and approved by
Mercedes-Benz.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
authorized Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
SLK 350
8.5 US qt (8.0 l)
Approved engine oils
SLK 55 AMG
8.5 US qt (8.0 l)
Automatic transmission*
SLK 350
10.4 US qt (9.8 l)
MB Automatic Transmission Fluid
SLK 55 AMG
10.4 US qt (9.8 l)
Manual transmission
SLK 350
1.6 US qt (1.5 l)
MB Manual Transmission Oil
Rear axle
SLK 350
1.2 US qt (1.1 l)
Hypoid gear oil SAE 85 W 90
SLK 55 AMG
1.3 US qt (1.2 l)
Power steering
SLK 350
1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin CHF 11S)
SLK 55 AMG
1.1 US qt (1.0 l)
Front wheel hubs
approx. 2.1oz (60g) each
High temperature roller bearing grease
Brake system
0.5 US qt (0.5 l)
MB Brake Fluid (DOT 4)
Cooling system
SLK 350
approx.11.2 US qt (10.2 l)
MB 325.0 Anticorrosion/Antifreeze Agent
SLK 55 AMG
approx. 11.7 US qt (11.1 l)

423 Technical data
Fuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Fuel tank
including a reserve of
SLK 350
SLK 55 AMG
approx. 18.5 US gal (70.0 l)
approx. 2.4 US gal (9.0 l)
approx. 18.5 US gal (70.0 l)
approx. 2.6 US gal (10.0 l)
Premium unleaded gasoline:
Minimum posted Octane 91 (average of
96 RON / 86 MON)
Air conditioning system
R-134a refrigerant and special PAG lubricant oil
(never R-12)
Hydraulic system for
retractable hardtop
0.19 US qt (0.18 l)
MB Hydraulic Fluid
Windshield washer
system and headlamp
cleaning system*
7.4 US qt (7.0 l)
MB Windshield washer concentrate
1
1Use MB Windshield Washer Concentrate“S” and water for temperatures above freezing point or MB Windshield Washer Concentrate “S” and commercially available
premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 429).

424 Technical dataFuels, coolants, lubricants, etc.Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters re-
quired for vehicles with Maintenance
System (U.S. vehicles) or FSS (Canada
vehicles). For a listing of approved engine
oils and oil filters, refer to the Factory
Approved Service Products pamphlet, or
contact an authorized Mercedes-Benz
Center.
Using engine oils and oil filters of specifica-
tion other than those expressly required
for the Maintenance System (U.S. vehi-
cles) or FSS (Canada vehicles), or changing
of oil and oil filter at change intervals long-
er than those called for by the
Maintenance System (U.S. vehicles) or
FSS (Canada vehicles) will result in engine
damage not covered by the
Mercedes-Benz Limited Warranty.Please follow Maintenance System (U.S.
vehicles) or FSS (Canada vehicles) recom-
mendations for scheduled oil changes.
Failure to do so will result in engine dam-
age not covered by the Mercedes-Benz
Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine. Damage or
malfunctions resulting from blending oil
additives are not covered by the
Mercedes-Benz Limited Warranty.Air conditioning refrigerant
R-134a (HFC) refrigerant and special
PAG lubricating oil are used in the air con-
ditioning system. Never use R-12 (CFC) or
mineral-based lubricating oil, otherwise
damage to the system will occur.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency. Therefore, the brake fluid
must be replaced every two years, prefera-
bly in the spring. Only brake fluid approved
by Mercedes-Benz is recommended. Your
authorized Mercedes-Benz Center will pro-
vide you with additional information.