· Always make sure that the ventilation of the
brakes is not interrupted or diminished. Also
take this into account if you retrofit hubcaps.
Insufficient ventilation can cause the braking
distance to increase considerably.
have to change it. If both tires on one side of the
vehicle, both on the same axle, or all of them are
damaged, seek specialized help.
WARNING
Changing a wheel can be dangerous, especially
if it is done at the edge of the road. To reduce the
risk of serious injury, observe the following: · Stop
the vehicle as soon as safely possible. Place the
Wheel bolt caps
vehicle at a safe distance from road traffic to be
able to change the wheel.
· While changing the wheel, all occupants, and
especially children, should always be at a safe
distance and out of the work area.
· Switch on emergency flashers to warn other
road users.
· Make sure the ground is level and firm.
If necessary, use a wide, stable base to support
the jack.
· You should only change a wheel yourself if
you are familiar with the necessary operations.
Otherwise, request the help of specialized
personnel.
Fig. 249 Remove the caps from the wheel bolts.
The caps protect the wheel bolts and must be
pushed back in as far as they will go after changing
the wheel.
· To change a wheel, always use suitable tools
and in perfect condition.
· To reduce the risk of the vehicle rolling
accidentally, always switch off the engine,
always apply the electronic parking brake and
always place the selector lever in position P or
always engage a gear if the transmission is
manual.
Removing and installing the caps
— Remove: Take out the wire hook from the on-
board tools ÿ p. 299.
— Insert the wire hook into the hole in the hood ÿ
fig. 249 and pull in the direction of the arrow.
· After changing a wheel, order immediately
Check the torque of the wheel bolts with a
perfectly working torque wrench.
— Fitting: Push the caps onto the wheel bolts as
far as they will go.
The anti-theft wheel bolt has a different cap, which
is only compatible with the anti-theft wheel bolt and
is not suitable for conventional bolts.
· On vehicles equipped with the tire monitoring
system, the system must be re-adapted
immediately after changing a wheel ÿ p. 334.
change a wheel
Introduction to the topic
Some vehicles come from the factory without a jack
or wheel brace. In this case, have the wheel replaced
by a specialized workshop.
The factory-included jack is only designed in the event
that a vehicle tire is damaged and
352
rims and tires
wheel bolts
Steps prior to changing a wheel
,
Please note on
page 352.
at the beginning of this chapter,
,
Please note on
page 352.
at the beginning of this chapter,
checklist
In preparation for changing a wheel, always
carry out the following operations in the order
indicated ÿ :
1. If you experience a tire failure, if possible park
the vehicle on level, firm ground at a safe
distance from road traffic.
2. Engage the electronic parking brake.
co.
3. If the vehicle is equipped with a two-way gear,
,
double DSG®
position the selector lever
clutch in position P.
Fig. 250 Changing the wheel: loosen the wheel bolts.
4. Shut off the engine and switch off the ignition.
5. If the change is manual, engage a gear.
6. Get all the occupants out of the vehicle and
take them to a safe place away from road
traffic.
7. Connect the emergency flashers and co
lock the warning triangle ÿ p. 70.
Observe the legal provisions in this regard.
8. Block the diagonally opposite wheel with a rock,
collapsible chocks, or other suitable object.
Fig. 251 Changing a wheel: tire valve 1 and
9. If you are using a trailer, unhitch it from the towing
vehicle and park it ÿ p. 282.
anti-theft wheel bolt mounting locations 2 or
.
10. If the trunk is loaded, remove all the equipment
3
heh.
11. If necessary, remove the subwoofer.
To loosen the wheel bolts, use an appropriate wheel
wrench.
12. Take the spare or emergency wheel and the on-
board tools out of the boot.
Before jacking up the vehicle, loosen the wheel
bolts only approx.
13. Remove the hubcaps ÿ p. 350.
If it is not possible to loosen a bolt, use your foot on
the end of the wheel brace cautiously. When doing
so, hold on to the vehicle and try not to lose your
balance.
WARNING
For your own safety, do not ignore this important
checklist, otherwise accidents and serious injuries
could result.
Loosen the wheel bolts
· Always follow the operations in the checklist and
always observe the generally valid safety
measures.
— Insert the wheel spanner into the screw as far as it will
go ÿ fig. 250.
— Hold the end of the wrench and turn the screw
approx. one turn counterclockwise ÿ .
3 G 0 0 1 2 7 6 0 A H
change a wheel
353
Loosen the anti-theft wheel bolt
· Never loosen the threaded connections of the wheel
studs with screwed hoops.
— Remove the adapter for the anti-theft screw from
on-board tools.
· If the wheel bolts are tightened below the
prescribed torque, the bolts and the rims could
come loose while driving. Conversely, excessive
— Insert the adapter into the anti-theft screw as far
as it will go.
tightening torque could damage the screws and
the thread. Check the tightening torque regularly
with a torque wrench.
— Fit the wheel wrench into the adapter as far as it will go.
stop.
— Hold the end of the wrench and turn the screw
WARNING
approx. one turn counterclockwise ÿ .
If unsuitable wheel bolts are fitted, they could come
loose while driving. This could cause loss of vehicle
control, an accident, and serious injury.
Screw in the anti-theft wheel bolt (integral hubcap)
On wheels with full hubcaps, the anti-theft wheel bolt
must be screwed into the position ÿ fig. 251 2 or 3 valve
taking as reference
position of the tire 1 . Other,wise it will not be possible to
· Only use wheel bolts that correspond to the rim in
question.
· Never use different wheel bolts.
mount the hubcap.
· On vehicles with two-way wheel bolts
parts, mount only screws of this type.
Wheel bolt tightening torque
Prescribed tightening torque for bolts on steel and light-
alloy wheels:
Subwoofer
— 140Nm
Before checking the tightening torque, replace the
wheel bolts that are rusty and difficult to unscrew and
screw in, and clean the threaded holes of the wheel
hub.
Please note on
page 352.
, at the beginning of this chapter,
Never apply grease or oil to the wheel bolts or
threaded holes in the wheel hub.
After changing a wheel, have the torque checked
immediately with a fully functioning torque wrench.
WARNING
Fig. 252 Removing the subwoofer
If the wheel bolts are tightened improperly, they
could come loose while driving. This could cause loss
of vehicle control, an accident and serious injury.
In order to remove the spare wheel, you must first
remove the subwoofer and place it in the trunk.
· The wheel bolts and threaded holes in the wheel
hubs must be clean, free of oil and grease. The
screws must be able to be easily screwed in and
out.
remove the subwoofer
— Open the tailgate and hook the floor covering to
the upper edge of the boot
womb.
· To loosen and tighten the wheel bolts, use only the
wheel wrench supplied with the vehicle from the
factory.
— Unscrew the thumbwheel counterclockwise.
— Pull out the subwoofer carefully.
· Before raising the vehicle with the jack, loosen
the wheel bolts only one turn
— Place the subwoofer vertically and rest it on the
trunk side panel so that it does not tip over or fall
down ÿ fig. 252.
approx.
· Never apply grease or oil to the wheel bolts or
threaded holes in the wheel hub. Even if the bolts
Place the subwoofer
are tightened to the prescribed torque, they could
loosen while driving.
— Place the subwoofer on the rim base with
careful. As you do so, the “FRONT” arrowhead
354
rims and tires
on the subwoofer should point forward.
— Take out the spare wheel, the spare wheel
inflatable or emergency wheel.
— Screw the knob clockwise until the subwoofer is
secure.
Save the changed wheel
— Open the tailgate.
— Raise the boot floor or remove it ÿ p. 267.
— Unhook the floor covering and reposition it on the
boot floor.
— If necessary, lift the floor covering and
remove it.
WARNING
If the subwoofer connector comes loose or the
connecting cable is pinched or bent, the subwoofer
may be damaged.
— Place the replaced wheel rim side down in the
spare wheel well so that the center hole of the
rim is just above the hole or stud.
— Screw the wheel onto the grub screw clockwise
until the replaced wheel is firmly seated.
Spare wheel or emergency
wheel
— Engage the wedge of the anti-rotation lock ÿ fig. 253 1
into the grub screw groove so that the thumbwheel
can no longer be turned.
,
Please note on
page 352.
at the beginning of this chapter,
— Put the on-board tools back in their housing and
store it in the boot.
— If necessary, fit the floor covering in the boot.
— Refit the boot floor ÿ p. 267.
— Close the tailgate.
If the spare wheel is different from the ones
mounted on the vehicle
If the spare wheel is different from those mounted on
the vehicle, only use it briefly in the event of a
breakdown ÿ .
Observe the following driving instructions:
Fig. 253 In the boot: wheel for fixing the spare wheel.
— Do not go faster than 80 km/h (50 mph)!
— Avoid full throttle, hard braking or fast cornering!
Removing the spare wheel, inflatable spare wheel
or emergency wheel
— Do not use snow chains on the drive wheel.
emergency ÿ p. 350.
— Open the tailgate.
— After mounting the spare or emergency wheel,
check the tire pressure as soon as possible ÿ p.
342.
— Raise the boot floor or remove it ÿ p. 267.
— If necessary, lift the floor covering and
remove it.
WARNING
— Take the tools on board along with their housing.
Improper use of the spare or emergency tire can
cause loss of vehicle control, a collision or other
type of accident, and serious injury.
— If necessary, remove the subwoofer.
— Pull the wedge of the anti-rotation lock upwards ÿ
Never use the spare wheel or the spare wheel
emergency if it is damaged or worn to the wear
indicators.
.
fig. 253 1
— Completely unscrew, in an anti-clockwise direction,
the central wheel that holds the spare wheel ÿ fig.
253 2
3 G 0 0 1 2 7 6 0 A H
· Some vehicles may be factory-equipped with a
spare wheel instead of one.
.
change a wheel
355