Volkswagen Golf Service & Repair Manual: Winter tyres
On an “M and S tyre” the tread profile, tread composition or
construction are designed so that the handling characteristics
are improved on snow as compared with a normal tyre - especially
when pulling away or stabilisation of vehicle movements. |
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The “snowflake” symbol indicates a winter tyre according to
the industrial standard based on which winter tyres are defined
in the USA. These tyres are extremely capable on snow, icy roads
and at low temperatures as far as safety and control are a
concerned. |
M+S marking for 4x4/SUV tyres |
Some vehicles are equipped with tyres which have the symbol
“M+S” on the outer tyre wall. The reason is, these models were
first available on the North American market where all-season
tyres with the symbol “M+S” are common. The marking “M+S” is
officially defined in a EU Directive as the following: “A tyre
where the tyre tread and structure are designed for improved
properties in snow as opposed to a normal tyre (translation, not
from EU regulation)”. The performance of “M+S” marked tyres are
therefore not defined nor tested. The snow performance of winter
tyres in North America are specified by the “Snowflake on the
Mountain symbol”. Only tyres that fulfil or exceed these
requirements may carry the “Snowflake on the Mountain symbol”. |
As of 01.05.2006, a change to the German road traffic
regulations (StVO) came into force which caused the following
supplement to be made: "The equipment in motor vehicles has to
be adapted to the weather conditions. In particular, this
includes suitable tyres and antifreeze in the windscreen washing
system." |
Please point out to customers that, since May 1st 2006, they
are legally obliged to adapt their vehicle's equipment,
particularly the tyres, to winter weather conditions. |
For driving in winter, we recommend that the vehicle be
equipped with winter tyres in the sizes recommended in the
certificate statements. |
All tyre sizes listed in the vehicle documents can also be
used as winter tyres. |
The handling characteristics may be affected by the use of
winter tyres and the possible change in the dimensions of the
wheel and tyre. Therefore, when using winter tyres, you must
adapt your speed to the changed handling characteristics and to
the road conditions. |
To achieve the best possible handling, winter tyres must be
fitted on all wheels. |
If the vehicle is equipped with rims other than the
factory-fitted rims, you must take the following into
consideration when you fit winter tyres: |
Wheels and wheel bolts are matched. |
Whenever the wheels are changed, corresponding wheel bolts
of the correct length and with the correct type of convex seats
must be used
→ Anchor. The secure fit of the wheels and the
functioning of the brakes depends this. |
The suitability of winter tyres with less than 4…5 mm tread
depth for winter operation is limited. |
Some countries require winter tyres to have a tread depth of
at least 4 mm. |
We recommend that winter tyres be replaced after no more
than six years. The special “winter properties” of these tyres
decline with age, regardless of how much they are used. |
Explanations regarding convex seats |
There are two different versions of the convex seats, the
spherical taper and the bevel taper. |
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The spherical seat is the curved surface of a section of a
sphere -arrow A-. This type of
convex seat is sometimes used for genuine wheel rims. |
The tapered seat is the flat surface of a section of a taper
-arrow B-. This type of convex seat
is sometimes used for wheel rims of the accessories trade. |
I - |
Wheel bolts with spherical seat |
II - |
Wheel bolts with tapered seat |
Vehicles with tyre pressure control |
On vehicles with tyre pressure control, the tyre inflation
pressure has to be resaved or matched when changing over between
summer and winter tyres and visa verse
→ Owner's manual for relevant model. |
Registration regulations in the Federal Republic of Germany |
Only when winter tyres are in use may the top speed that a
vehicle can achieve be greater than the maximum speed specified
by the speed symbol of the tyre. |
In this case, a label stating the following must be
attached: |
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Important!
Winter tyres! |
Maximum speed …
km/h |
Note
This label must be clearly visible to the driver! |
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Some tyre manufacturers have for some time replaced the
designation “Reinforced” with the designation “Extra Load”. This
designation has long been standard in ...
Table
→ Anchor
The tyre industry now supplies winter tyres with speed
symbol "V". But only under certain conditions may these tyres ...
Other materials:
Checking selector mechanism
The starter must not operate in the selector lever positions
“R”, “D” and “S” and in the Tiptronic position.
On right-hand drive vehicles, the starter must operate in
selector lever positions “P” and “N” only when the butto ...
Rear brakes
The type of brake system installed in the vehicle is
indicated among other things by the corresponding PR number on
the vehicle data sticker.
The vehicle data sticker can be found in the spare wheel
well and in the service schedule.
...
Adjusting striker pin
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
Socket -3410-
Note
Threaded ...
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