Page 350 of 372

Mounting a new wheel
G
WARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel
bolts to come loose. As a result, you could
lose a wheel while driving. There is a risk of
accident.
Never oil or grease wheel bolts. In the event
of damage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving. G
WARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always pay attention to the instructions and
safety notes in the "Changing a wheel"
section ( Y page 344).
Only
use wheel bolts that have been designed
for the wheel and the vehicle. For safety
reasons, Mercedes-Benz recommends that
you only use wheel bolts which have been
approved for Mercedes-Benz vehicles and the
respective wheel.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt. Positioning a wheel (example: vehicle with
emergency spare wheel) X
Clean the wheel and wheel hub contact
surfaces.
X Slide the wheel to be mounted onto the
alignment bolt and push it on.
X Tighten the wheel bolts until they are
finger-tight.
X Unscrew the alignment bolt.
X Tighten the last wheel bolt until it is finger-
tight.
Lowering the vehicle G
WARNING
The wheels could work loose if the wheel nuts
and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed. Tightening wheel bolts (example: vehicle with
emergency spare wheel)
X
Turn the crank of the jack counter-
clockwise until the vehicle is once again
standing firmly on the ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated ( :
to A). The tightening torque
must be 96 lb-ft (130 Nm).
X Turn the jack back to its initial position.
X Stow the jack and the rest of the vehicle
tools in the trunk again.348
Changing a wheel
Wheels and tires
Page 357 of 372

Winter tires
R18
Tires Alloy wheels
BA: 235/40 R18 95 H XL M+S
i BA: 8.0 J x 18 H2
Wheel offset: 1.77 in
(45 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 your driving style accordingly and
drive carefully.
R never install 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 325). The applicable value is found on the wheel or under "Technical
data" (
Y page 357).
An emergency spare wheel may also be
mounted against the direction of rotation.
Observe
the time restriction on use as well as
the speed limitation specified on the
emergency spare wheel.
Replace the tires after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel.
i When you are driving with the collapsible
spare wheel mounted, the tire pressure
loss warning system or the tire pressure
monitor cannot function reliably. Only
restart the tire pressure loss warning
system/the tire pressure monitor when the
damaged wheel has been replaced with a
new wheel.
Vehicles with tire pressure monitor:
after mounting an emergency spare wheel,
the system may still display the tire
pressure of the removed wheel for a few
minutes. The value displayed for the
mounted emergency spare wheel is not the
same as the current tire pressure of the
emergency spare wheel. Emergency spare wheel
355
Wheels and tires Z
Page 358 of 372
"Minispare" emergency spare wheel
:
"Minispare" emergency spare wheel
; Stowage well
The "Minispare" emergency spare wheel can
be found in the stowage well under the trunk
floor.
X Lift the trunk floor upwards (Y page 272).
X Turn stowage tray ; counter-clockwise
and remove it.
X Remove "Minispare" emergency spare
wheel :.
For further information on changing a wheel
and installing the spare wheel, see
(Y page 308). 356
Emergency spare wheel
Wheels and tires
Page 359 of 372
Technical data
E 350 BlueEFFICIENCY "Minispare" emergency spare wheel
Tires Alloy wheels
T 135/80 R17 103 M
Tire pressure: 420 kPa (4.2 bar/61 psi) 3.5 B x 17 H2
Wheel offset: 0.77 in
(19.5 mm)T 125/70 R18 99 M
Tire pressure: 420 kPa (4.2 bar/61 psi) 3.5 B x 18 H2
Wheel offset: 0.79 in
(20 mm)E 350 4MATIC BlueEFFICIENCY
"Minispare" emergency spare wheel
Tires Alloy wheels
T 135/80 R17 103 M
Tire pressure: 420 kPa (4.2 bar/61 psi) 3.5 B x 17 H2
Wheel offset: 0.77 in
(19.5 mm)T 125/70 R18 99 M
Tire pressure: 420 kPa (4.2 bar/61 psi) 3.5 B x 18 H2
Wheel offset: 0.79 in
(20 mm)E 550 BlueEFFICIENCY
"Minispare" emergency spare wheel
Tires Alloy wheels
T 125/70 R18 99 M
Tire pressure: 420 kPa (4.2 bar/61 psi) 3,5 B x 18 H2 ET
Wheel offset: 0.79 in
(20 mm) Emergency spare wheel
357
Wheels and tires Z
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