R
Run in new tyres at moderate speeds for the
first 100 km.
R
Replace the tyres after six years at the latest,
regardless of wear.
For more information on wheels and tyres, contact
a qualified specialist workshop.
Also observe the following further related subjects:
R
Notes on tyre pressure (
/
page 236)
R
Tyre pressure table (
/
page 237)
R
Notes on the emergency spare wheel
(
/
page 245)
Notes on changing wheels
&
WARNING Risk of injury through different
wheel sizes
Interchanging the front and rear wheels can
severely impair the driving characteristics.
The disk brakes or wheel suspension compo-
nents may also be damaged.
#
Only interchange the front and rear
wheels if the wheels and tyres have the
same dimensions.
Interchanging the front and rear wheels if the
wheels or tyres have different dimensions can ren-
der the general operating permit invalid.
On vehicles with the same front and rear wheel
size, you can interchange the wheels every 5,000
to 10,000 km depending on the wear. Ensure the
direction of rotation is maintained for the wheels.
It is imperative to observe the instructions and
safety notes on "Changing a wheel" when doing so.
Size categories of wheels
The determined vehicle speed is displayed in the
instrument cluster and is important for controlling
the driving safety systems and driving systems. The
display accuracy of the speedometer and the
odometer is legally prescribed. Determining the
speed is dependent on the tyre size or the rolling
circumference of the tyres. The rim diameter is
always specified in inches.
For this reason, the vehicle control units can be
coded for the following wheel size categories:
Wheel size category 1
195/65 R 16 C
205/65 R 16 C
225/60 R 16 C
225/55 R 17 C
225/55 R 17 XL
245/45 R 18 XL
Wheel size category 2
225/55 R 17 XL
235/55 R 17 XL
245/55 R 17 XL
245/45 R 18 XL
245/50 R 18 XL
245/45 R 19 XL
%
Mercedes-Benz recommends that you stay
within a wheel size category when changing a
tyre. In this way, you avoid recoding the con-
trol units.
Due to the legally prescribed accuracy of the
speedometer and odometer displays, the following
tyres are not permitted for taxis and hire cars:
R
Wheel size category 1
-
195/65 R16C
R
Wheel size category 2
-
225/55 R17XL
-
245/45 R18XL
If the wheel size category changes, you must have
your vehicle's control units recoded at a qualified
specialist workshop.
Information on the direction of tyre rotation
Tyres with a specified direction of rotation have
additional benefits, e.g. if there is a risk of aqua-
planing. You will only gain these benefits if the cor-
rect direction of rotation is observed.
An arrow on the sidewall of the tyre indicates its
correct direction of rotation.
You may also fit a spare wheel against the direc-
tion of rotation. Observe the time restriction on
Wheels and tyres 241
T447 0414 02
Summary of Contents for EQV 2021
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