BMW 640i Bedienungshandbuch PDF herunterladen (Seite 204)

Winter tires

Do not drive with a tire tread depth of less than

0.16 in/4 mm.

Below a tread depth of 0.16 in/4 mm, tires are

less suitable for winter operation.

Minimum tread depth

Wear indicators are distributed around the

tire's circumference and have the legally re‐

quired minimum height of 0.063 in/1.6 mm.

They are marked on the side of the tire with

TWI, Tread Wear Indicator.

Tire damage

General information

Inspect your tires often for damage, foreign

objects lodged in the tread, and tread wear.

Hints

Driving over rough or damaged road surfaces,

as well as debris, curbs and other obstacles

can cause serious damage to wheels, tires and

suspension parts. This is more likely to occur

with low-profile tires, which provide less cush‐

ioning between the wheel and the road. Be

careful to avoid road hazards and reduce your

speed, especially if your vehicle is equipped

with low-profile tires.

Indications of tire damage or other vehicle de‐

fects:

▷ Unusual vibrations while driving.

▷ Unusual handling such as a strong ten‐

dency to pull to the left or right.

Damage can, e. g., be caused by driving over

curbs, road damage, or similar things.

In case of tire damage

If there are indications of tire damage, re‐

duce your speed immediately and have the

rims and tires checked right away; otherwise,

there is the increased risk of an accident.

Drive carefully to the nearest service center. If

necessary, have the vehicle towed or trans‐

ported there. Otherwise, tire damage can be‐

come life threatening for vehicle occupants

and also other traffic.◀

Repair of tire damage

For safety reasons, the manufacturer of

your vehicle recommends that you do not have

damaged tires repaired; they should be re‐

placed. Otherwise, damage can occur as a re‐

sult.◀

Changing wheels and tires

Mounting

Information on mounting tires

Have mounting and balancing performed

only by a service center.

If work is not carried out properly, there is a

danger of subsequent damage and related

safety hazards.◀

Wheel and tire combination

You can ask the service center about the right

wheel/tire combination and wheel rim versions

for the vehicle.

Incorrect wheel and tire combinations impair

the function of a variety of systems such as

ABS or DSC.

To maintain good handling and vehicle re‐

sponse, use only tires with a single tread con‐

figuration from a single manufacturer.

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Mobility Wheels and tires

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