wheel bolt torque AUDI A4 2008 B8 / 4.G Owners Manual

Self-help 284If you need the tools, the Tyre Mobility System or the jack*, you will
have to open the floor panel and take out the spare wheel*
⇒page 284.
The tool kit includes:•
A hook for removing hub caps
•
Pin for mounting a wheel
•
Screwdriver with reversible blade
•
Tool for changing bulbs
•
Interchangeable socket (Torx socket for changing bulbs)
•
Crank handle for jack
•
Adapter for anti-theft wheel bolts*
•
Jack*
•
Box spanner for wheel bolts
•
Towline anchorage
Some of the parts listed are only fitted on certain models or are
optional extras.
Before stowing the jack* again, wind down the arm of the jack as far
as it will go.
WARNING
•
Do not use the hexagonal socket in the screwdriver handle to
tighten the wheel bolts. It is not possible to tighten the bolts with
the required torque – risk of accident.
•
The jack supplied by the factory is only designed for changing
wheels on this model. On no account attempt to use it for lifting
heavier vehicles or other loads – risk of injury.
•
Never start the engine when the vehicle is on the jack - risk of
accident.
•
If work has to be done under the veh i cl e , e n su re t h a t i t is sa fe l y
supported on stands designed for the purpose, otherwise there is
a risk of injury.
Applies to vehicles: with compact temporary spare wheelCompact temporary spare wheel*The spare wheel is carried in the wheel well under the
floor panel in the luggage compartment. It is only
intended for temporary use over short distances.Taking out the spare wheel
– Lift the floor panel by the plastic handle ⇒fig. 268.
– Hook the handle onto the luggage compartment weath-
erstrip.
– Turn the centre plastic knob ⇒fig. 268 anti-clockwise.
– Take out the spare wheel.
– Unhook the floor panel before closing the boot lid.
Securing the defective wheel in the spare wheel
well
– Place the wheel in the spare wheel well and secure it with
the plastic knob.
– Unhook the floor panel before closing the boot lid.
Fig. 268 Spare wheel
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Self-help289
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
–Loosen the wheel bolts ⇒page 289.
–Raise the car with the jack* ⇒page 290.
–Ta k e o f f the wheel with the flat tyre and then put on the
spare wheel* ⇒page 291.
–Lower the vehicle to the ground.
– Tighten the wheel bolts firmly i n d i a g o n a l s e qu e n c e w i t h
the box spanner ⇒page 289.
–Fit the hub cap back on.After changing a wheel
What you must do after changing a wheel.– Place the wheel with the defective tyre in the spare wheel
well and secure it.
– Put the tools and the jack* back in the luggage compart-
ment.
–The inflation pressure of the newly fitted spare tyre must
be checked as soon as possible.
–Have the tightening torque of the wheel bolts checked as
soon as possible with a torque wrench. The correct tight-
ening torque is 120 Nm.
– Have the flat tyre replaced as quickly as possible.
Note•
If you notice that the wheel bolts are corroded and difficult to
turn when changing a wheel, they must be replaced before having
the tightening torque checked.
•
In the interest of safety, drive at moderate speeds until the tight-
ening torque of the wheel bolts has been checked.
Hub caps
The hub caps must be removed for access to the wheel
bolts.Removing
– Insert the hook (provided in the vehicle's tool kit) in the
hole in the hub cap.
–Pull off the hub cap ⇒fig. 271.Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising the
vehicle.
Fig. 271 Changing a
wheel: Removing a hub
capFig. 272 Changing a
wheel: Loosening
wheel bolts
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