Page 251 of 321
Vehicle care249
3.Some versions may have covered
the vehicle jacking point. Pull out
the cover sideways.
4. Ensure the jack is correctly positioned under the relevant
vehicle jacking point.
5. Set the jack to the necessary height. Position it directly below
the jacking point in a manner that
prevents it from slipping.
Attach wheel wrench and with the
jack correctly aligned rotate wheel wrench until wheel is clear of the
ground.
6. Unscrew the wheel nuts. 7. Change the wheel. Spare wheel 3 250.
8. Screw on the wheel nuts.
9. Lower vehicle.
10. Install the wheel wrench ensuring that it locates securely and tighten
each nut in a crosswise
sequence. Tightening torque is
150 Nm.
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250Vehicle care
11. Align the valve hole in the wheelcover with the tyre valve before
installing.
Install wheel nut caps.
12. Install vehicle jacking point cover.
13. Stow the replaced wheel 3 250
and the vehicle tools 3 239.
14. Check the tyre pressure of the installed tyre and the wheel nut
torque as soon as possible.
Have the defective tyre renewed or
repaired as soon as possible.
Jacking position for lifting
platformRear arm position of the lifting
platform at the underbody.
Front arm position of the lifting
platform at the underbody.
Spare wheel Some vehicles are equipped with a
tyre repair kit instead of a spare
wheel.
The spare wheel can be classified as
a temporary spare wheel depending
on the size compared to the other
mounted wheels and country
regulations.
The spare wheel has a steel rim.
Caution
The use of a spare wheel that is smaller than the other wheels or in combination with winter tyres
could affect driveability. Have the defective tyre replaced as soon as
possible.
The spare wheel is located in the load
compartment beneath the floor
covering.
To remove:
1. Open the floor cover.
Page 253 of 321

Vehicle care251
2.The spare wheel is secured with a
wing nut. Turn wing nut
anticlockwise and remove the
spare wheel.
Under the spare wheel there is the box with vehicle tools.
3. When, after a wheel change, no wheel is placed in the spare wheel
well, secure the tool box by
turning right back the wing nut and close the floor cover.
Stowing the replaced full size wheel in the spare wheel well
The spare wheel well is not designed for all permitted tyre sizes. If a wheel
wider than the spare must be stowed
in the spare wheel well, the thread
bolt for mounting the wheel must be
replaced by an extension bolt, located
in the tool box 3 239. To replace the
bolt:
■ Remove tool box from the spare wheel well.
■Install the hexagon key of the wheel
wrench ensuring that it locates
securely on the bolt.
■ Turn the wheel wrench anticlockwise to loosen the bolt.
Remove the bolt.
■ Take the extension bolt from the tool box 3 239 and screw it in hand-
tight using the hexagon key of the
wheel wrench.■ Store the tool box and the damaged
wheel outside up in the spare wheel
well and secure it by turning the
wing nut clockwise on the bolt.
The floor cover can be placed on the
projecting wheel.
To fit the spare wheel in the well after
renewing the defective wheel use the
short thread bolt again. Exchange the
bolt in the same way.
Page 254 of 321

252Vehicle care9Warning
Storing a jack, a wheel or other
equipment in the load
compartment could cause injury if they are not fixed properly. During a sudden stop or a collision, looseequipment could strike someone.
Store wheel, jack and tools always
in the original storage location and secure them by fixing.
Temporary spare wheel
Caution
The use of a spare wheel that issmaller than the other wheels or in
combination with winter tyres
could affect driveability. Have the defective tyre replaced as soon as
possible.
Only mount one temporary spare
wheel. Do not drive faster than
80 km/h. Take curves slowly. Do not use for a long period of time.
If your vehicle gets a flat tyre on the
rear while towing another vehicle,
mount the temporary spare wheel in the front and the full tyre in the rear.
Tyre chains 3 244.
Directional tyres Fit directional tyres such that they roll
in the direction of travel. The rolling
direction is indicated by a symbol
(e.g. an arrow) on the sidewall.
The following applies to tyres fitted
opposing the rolling direction:
■ Driveability may be affected. Have the defective tyre renewed or
repaired as soon as possible.
■ Drive particularly carefully on wet and snow-covered road surfaces.Jump starting
Do not start with quick charger.
A vehicle with a discharged vehicle
battery can be started using jump
leads and the vehicle battery of
another vehicle.9 Warning
Be extremely careful when starting
with jump leads. Any deviation
from the following instructions can
lead to injuries or damage caused
by battery explosion or damage to the electrical systems of both
vehicles.
9 Warning
Avoid contact of the battery with
eyes, skin, fabrics and painted
surfaces. The fluid contains
sulphuric acid which can cause
injuries and damage in the event
of direct contact.
Page 300 of 321
298Technical data
Comfort with up to
3 peopleECO with up to
3 peopleWith full loadEngineTyresfrontrearfrontrearfrontrear[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])A20DTR with Sport
chassis and Brembo
brake 18''245/40R19230/2.3
(33)220/2.2
(32)270/2.7
(39)290/2.9
(42)260/2.6
(38)300/3.0
(43)235/45R18,250/2.5
(36)250/2.5
(36)270/2.7
(39)290/2.9
(42)260/2.6
(38)320/3.2
(46)245/35R20AllTemporary spare
wheel420/4.2
(61)420/4.2
(61)––420/4.2
(61)420/4.2
(61)
Page 306 of 321
304Technical data
Comfort with up to
3 peopleECO with up to
3 peopleWith full loadEngineTyresfrontrearfrontrearfrontrear[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])225/45 R18260/2.6
(38)280/2.8
(41)270/2.7
(39)290/2.9
(42)260/2.6
(38)320/3.2
(46)A20DTR with Sport
chassis and Brembo brake
18''245/40R19230/2.3
(33)220/2.2
(32)270/2.7
(39)290/2.9
(42)260/2.6
(38)300/3.0
(43)235/45R18,250/2.5
(36)250/2.5
(36)270/2.7
(39)290/2.9
(42)260/2.6
(38)320/3.2
(46)245/35R20AllTemporary spare
wheel420/4.2
(61)420/4.2
(61)––420/4.2
(61)420/4.2
(61)
Page 310 of 321
308Technical data
Comfort with up to 3 peopleECO with up to 3 peopleWith full loadEngineTyresfrontrearfrontrearfrontrear[kPa/bar] ([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])A20DTR with
Sport chassis
and Brembo
brake 18''245/40R19230/2.3 (33)220/2.2 (32)270/2.7 (39)290/2.9 (42)260/2.6
(38)300/3.0
(43)235/45R18,250/2.5 (36)250/2.5 (36)270/2.7 (39)290/2.9 (42)260/2.6
(38)320/3.2
(46)245/35R20A28 NER235/45 R18,270/2.7 (39)250/2.5 (36)310/3.1 (45)300/3.0 (43)280/2.8
(41)300/3.0
(43)245/40 R19255/35 R20AllTemporary spare
wheel420/4.2 (61)420/4.2 (61)––420/4.2
(61)420/4.2
(61)
Page 312 of 321
310Technical data
Comfort with up to
3 peopleECO with up to 3 peopleWith full loadEngineTyresfrontrearfrontrearfrontrear[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])[kPa/bar]
([psi])A28 NER235/45 R18,260/2.6 (38)230/2.3 (33)300/3.0 (43)320/3.2 (46)270/2.7
(39)320/3.2
(46)245/40 R19,255/35 R20AllTemporary spare
wheel420/4.2 (61)420/4.2 (61)––420/4.2
(61)420/4.2
(61)