collision. For this reason, you should avoid
using Parking Guidance in such situations.
G
WARNING
Make sure that no persons or animals are in
the maneuvering range. Otherwise, they
could be injured.
! Pay particula rattention to low objects or
objects with flat surfaces ,such as trailer
drawbars, posts, cross beams and curbs.
These types of objects canno tbe detected
by Parking Guidance and may damage the
vehicle.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at
a sharp angle. Otherwise, you may damage
the wheels or tires.
Parking Guidance is an electronic parking aid
with ultrasound. Ultrasound is used to
measure the road on both sides of the vehicle.
As uitable parking space is indicated by the
parking symbol. You receive steering
instructions when parking .You may also use
PARKTRONIC (Y page 178).
When PARKTRONIC is deactivated, Parking
Guidance is also unavailable.
Use Parking Guidance for parking spaces:
R that are parallel to the direction of travel
R that are on straight roads, not bends
R that are on the same level as the road, i.e.
not on the pavement, for example. Parking
Guidance may not detect flat curbs
Parking tips:
R on narrow roads, drive past the parking
space as close as possible.
R parking spaces that are littered, overgrown
or partially occupied by trailer drawbars
might be identified incorrectly or not at all.
R snowfall or heavy rain may lead to a parking
space being measured inaccurately.
R pay attention to the PARKTRONIC
(Y page 179) warning messages during the
parking procedure. R
when transporting a load which protrudes
from your vehicle, you must not use Parking
Guidance.
R never use Parking Guidance with snow
chains or an emergency spare wheel
mounted.
R make sure that the tire pressures are
always correct. This has adirec teffect on
the steering instructions.
R the way you rvehicle is positioned in the
parking space after parkin gis dependent
on various factors. These include the
position and shape of the vehicles parked
in front and behind it and the conditions of
the location. In some cases, Parking
Guidance may guide you too far or not far
enough into a parking space. In some
cases, it may also lead you across or onto
the curb. If necessary, cancel the parking
procedure with Parking Guidance.
Detecting aparking space 0003
Detected parking space on the left
0004 Parking symbol
0024 Detected parking space on the right
Parking Guidance is automatically activated
whe nyou drive forwards. The system is
operational at speeds of up to approximately
22 mph (35 km/h). While in operation, the
system independently locates and measures
parking spaces on both sides of the vehicle.
When driving at speeds below 19 mph
(30km/h), you will see parking symbol 0004as
a status indicator in the instrument cluster. 182
Driving systemsDriving and parking
When you have mounted M+S tires:
X
Check the tire pressures (Y page 315).
X Vehicles for USA: restartthe tire pressure
monitor (Y page 316).
X Vehicles for Canada: restart the tire
pressure loss warning system
(Y page 315).
For more information on driving with the
emergency spare wheel, see (Y page 339).Snow chains
G
WARNING
If snow chains are installed to the front
wheels, they may drag against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tires.
There is a risk of an accident.
To avoid hazardous situations:
R never install snow chains to the front
wheels
R always install snow chains in pairs to the
rear wheels.
! You must drive at raised vehicle level
(level 1) if snow chains have been mounted.
The vehicle may otherwise be damaged.
! On some tire sizes there is not enough
space for snow chains. To avoid damage to
the vehicle or tires, observe the "Wheel and
tire combinations" section under "Tires and
wheels".
! Vehicles with steel wheels: if you wish
to mount snow chains on steel wheels,
make sure that you remove the respective
wheels' hubcaps first. The hubcaps may
otherwise be damaged.
For safety reasons, Mercedes-Benz
recommends that you only use snow chains
that have been specially approved for your
vehicle by Mercedes-Benz, or are of a
corresponding standard of quality. If you intend to mount snow chains, please
bear the following points in mind:
R
Snow chains may not be mounted on all
wheel/tire combinations. Permissible
wheel-tire combinations (Y page 335).
R Only use snow chains when driving on
roads completely covered by snow.
Remove the snow chains as soon as
possible when you come to aroad that is
not snow-covered.
R Local regulations may restrict the use of
snow chains. Observe the appropriate
regulations if you wish to install snow
chains.
R Do not exceed the maximum permissible
speed of 30 mph (50 km/h).
i You may wish to deactivate ESP ®
when
pulling away with snow chains installed
(Y page 61). This way you can allow the
wheels to spin in a controlled manner,
achieving an increased driving force
(cutting action).
For more information on driving with the
emergency spare wheel, see (Y page 339). Tire pressure
Tire pressure specifications
Important safety notes G
WARNING
Tires with tire pressures that are too low or
too high are associated with the following
hazards:
R they can burst, in particular if the vehicle is
heavily laden or when driven at high
speeds.
R the tires can wear excessively and/or
unevenly, which can severely impair tire
traction.
R the driving, steering and braking
characteristics may be severely impaired.
There is a risk of accident. Tire pressure
311Wheels and tires
Z
Information on air pressure for the tires on
yourv ehicle can be found:
R on the vehicle's Tire and Loading
Information placard on the B-pillar
(Y page 319)
R on the tire pressure label on the fuel filler
flap (Y page 153)
R in the "Tire pressure" section
Checking tire pressures manually To determine and set the correct tire
pressure, proceed as follows:
X Remove the valve cap of the tire that is to
be checked.
X Press the tire pressure gauge securely onto
the valve.
X Read the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard (Y page 311).
X If the tire pressure is too low, increase it to
the recommended value.
X If the tire pressure is too high, release air
by pressing down the metal pin in the valve.
Use the tip of a pen, for example. Then,
chec kthe tire pressure again using the tire
pressure gauge.
X Screw the valve cap onto the valve.
X Repeatt hese steps for the other tires. Tire pressure loss warning system
(Canada only)
Important safety notes While the vehicle is in motion, the tire
pressure loss warning system monitors the
set tire pressure using the rotational speed of
the wheels. This enables the system to detect
significant pressure loss in a tire. If the speed
of rotation of a wheel changes as a result of
a loss of pressure, a corresponding warning
message will appearint he multifunction
display. The tire pressure warning system does not
warn you of an incorrectly set tire pressure.
Observe the notes on the recommended tire
pressure (Y
page 311).
The tire pressure loss warning system does
not replace the need to regularly check your
vehicle's tire pressures, since an even loss of
pressure on several tires at the same time
cannot be detected by the tire pressure loss
warning system.
The tire pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tire is penetrated by a foreign object. In the
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Avoid
abrupt steering maneuvers.
The function of the tire pressure loss warning
system is limited or delayed if:
R snow chains are mounted to your vehicle's
tires.
R road conditions are wintry.
R you are driving on sand or gravel.
R you adopt a very sporty driving style
(cornering at high speeds or driving with
high rates of acceleration).
R you drive with a heavy load.
Restarting the tire pressure loss
warning system Restart the tire pressure loss warning system
if you have:
R
changed the tire pressure
R changed the wheels or tires
R mounted new wheels or tires
X Before restarting, make sure that the tire
pressures are set properly on all four tires
for the respective operating conditions.
The recommended tire pressures can be
found on the Tire and Loading Information
placard on the B-pillar on the driver's side
or the tire pressure table on the fuel filler
flap. Tire pressure
315Wheels and tires Z
Tires
SLK 250 Summer tires
R17
Tires Allo
ywheels FA: 225/45 R17 91 W
FA: 245/40 R17 91 W
4 FA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 17 H2
Wheel offset: 1.42in (36 mm)
FA: 225/45 R17 91 W MOExtended
5
RA: 245/40 R17 91 W MOExtended 4, 5 FA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 17 H2
Wheel offset: 1.42 in (36 mm)
R18
Tires Alloy wheels
FA: 225/40 R18 92 Y XL
RA: 245/35 R18 92 Y XL
4 FA: 7.5 J x 18 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 18 H2
Wheel offset: 1.42 in (36 mm)
Winter tires
R17
Tires Alloy wheels
BA: 225/45 R17 91 H M+S
0004 BA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
BA: 225/45 R17 91 H M+S
0004MOExtended5 BA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
4
Use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5 MOExtended tires (tires with run-fla tcharacteristics) only in conjunction with an activated tire pressure loss
warning system. Wheel and tire combinations
337Wheels and tires Z
SLK 350
Summer tires
R17
Tires Alloyw
heels FA: 225/45 R17 91 W
RA: 245/40 R17 91 W
4 FA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 17 H2
Wheel offset: 1.42in (36 mm)
FA: 225/45 R17 91 W MOExtended
5
RA: 245/40 R17 91 W MOExtended 4, 5 FA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 17 H2
Wheel offset: 1.42 in (36 mm)
R18
Tires Alloy wheels
FA: 225/40 R18 92 Y XL
RA: 245/35 R18 92 Y XL
4 FA: 7.5 J x 18 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 18 H2
Wheel offset: 1.42 in (36 mm)
Winter tires
R17 Tires Alloy wheels
BA: 225/45 R17 91 H M+S
0004 BA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
BA: 225/45 R17 91 H M+S
0004MOExtended5 BA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
4
Use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5 MOExtended tires (tires with run-fla tcharacteristics) only in conjunction with an activated tire pressure loss
warning system. 338
Wheel and tire combinationsWheels and tires
SLK 55 AMG
Summer tires
R18
Tires Alloyw
heels FA: 235/40 ZR18 95 Y XL
RA: 255/35 ZR18 94 Y XL
4 FA: 8.0 J x 18 H2
Wheel offset: 1.69 in (43 mm)
RA: 9.0 J x 18 H2
Wheel offset: 1.65 in (42 mm)
Winter tires
R18
Tires Alloy wheels
BA: 235/40 R18 95 V XL M+S
0004 BA: 8.0 J x 18 H2
Wheel offset: 1.69 in (43 mm)
FA: 235/40 R18 95 V XL M+S
0004
RA: 255/35 R18 94 V XL M+S 00044 FA: 8.0 J x 18 H2
Wheel offset: 1.69 in (43 mm)
RA: 9.0 J x 18 H2
Wheel offset: 1.65 in (42 mm)
Emergency spare wheel
Important safety notes
G
WARNING
The wheel or tire size as well as the tire type
of the spare wheel or emergency spare wheel
and the wheel to be replaced may differ.
Mounting an emergency spare wheel may
severely impair the driving characteristics.
There is a risk of an accident.
To avoid hazardous situations:
R adapt you rdriving style accordingly and
drive carefully.
R never mount more than one spare wheel or
emergency spare wheel that differs in size.
R only use a spare wheel or emergency spare
wheel of a different size briefly. R
do not switch ESP ®
off.
R have a spare wheel or emergency spare
wheel of a different size replaced at the
nearest qualified specialist workshop.
Observe that the wheel and tire dimensions
as well as the tire type must be correct.
When using an emergency spare wheel or
spare wheel of a different size, you must not
exceed the maximum speed of 50 mph
(80 km/h).
Snow chains must not be mounted on
emergency spare wheels. General notes
You should regularly check the pressure of
the emergency spare wheel, particularly prior
to long trips, and correct the pressure as
necessary (Y page 311). The applicable value
4 Use of snow chains is not permitted .Observe the notes in the "Snow chains" section. Emergency spare wheel
339Wheels and tires Z
Technical data
All models (except AM Gvehicles) Collapsible spare wheel
6Tires Alloy wheels
145/70 - 17 92P
Tire pressure: 350 kPa (3.5 bar/51 psi) 4.5 B x 17 H2 ET 12
AMG vehicles
Collapsible spare wheel
6Tires Alloy wheels
175/55 - 18 95P
Tire pressure: 350 kPa (3.5 bar/51 psi) 6.0 B x 18 H2 ET 25
Depending on the country, the engine and the wheels mounted, your vehicle may be equipped
with TIREFIT or a collapsible spare wheel.
i The specified tire pressure is printed in yellow on th eemergency spare wheel.
6 Use of snow chains not permitted. Observe the notes in the "Snow chains" section. Emergency spare wheel
343Wheels and tires Z