Driving and the environment
174Authorised Service Centre more frequently than recommended in the Service
Schedule.
If you drive with wet brakes, for example after driving through water, after
heavy rainfall or after washing the car, the braking effect will be reduced as
the brake discs will be wet, or possibly frozen (in winter): the brakes must be
“dried” through careful braking.
The brake fluid must be changed every two years at the latest. Heavy use of
the brakes may cause a vapour lock if the brake fluid is left in the system for
too long. This prevents the brakes developing their full braking effect.
WARNING
Longer braking distances and faults in the brake system increase the risk
of accidents.•
New brake pads must be run-in and do not have the correct friction
during the first 200 km. However, the reduced braking capacity may be
compensated by pressing on the brake pedal a little harder. This also
applies when new brake pads are fitted.
•
If brakes are wet or frozen, or if you are driving on roads which have
been gritted with salt, braking power may set in later than normal.
• On steep descents if the brakes are exc essively used they wi ll over-
heat. Before driving down a long steep gradient, it is advisable to reduce
speed and change to a lower gear (or mo ve the selector lever to a lower gear
if your vehicle has automatic transmission). This makes use of engine
braking and relieves the brakes.
•
Never let the brakes “rub” by applying light pressure. Continuous
braking will cause the brakes to overheat and will increase the braking
distance. Apply and then release the brakes alternately.
•
Never let the vehicle coast with the engine switched off. The braking
distance is increased considerably as the brake servo does not function.
•
Very heavy use of the brakes may cause a vapour lock if the brake fluid
is left in the system for too long. This impairs the braking effect.
•
Non-standard or damaged front spoilers could restrict the airflow to the
brakes and cause them to overheat. Observe the relevant instructions
before purchasing accessories ⇒page 191, “Modifications”.
•
If a brake circuit fails, the braking distance will be increased consider-
ably. Contact a qualified workshop immediately and avoid unnecessary
journeys.
Exhaust gas es purification systemCatalytic converter*To conserve the useful life of the catalytic converter
– Always use unleaded petrol.
– Do not run the fuel tank dry.
– For engine oil changes, do not replenish with too much engine oil
⇒page 204, “Topping up engine oil ”.
– Never tow the vehicle to start it, use jump leads if necessary ⇒page 248.If you notice misfiring, uneven running or loss of power when the vehicle is
moving, reduce speed immediately and have the vehicle inspected at the
nearest qualified workshop. In general, the exhaust warning lamp will light
up when any of the described symptoms occur ⇒page 72. If this happens,
unburnt fuel can enter the exhaust system and escape into the environment.
The catalytic converter can also be damaged by overheating.
WARNING (continued)
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Checking and refilling levels
202Oil properties
Viscosity
The viscosity class of the oil is selected according to the diagram.
When the ambient temperature falls outside the limits of the scale for a short
period, an oil change is not required.
Mono-grade oil
Single grade oils are generally not suitable for all year round use, due to
ranges of viscosity
19). These oils are only useful in a climate
that is constantly very cold or very
warm.
Engine oil additives
No type of additive should be mixed with the engine oil. The deterioration
caused by these additives is not covered by the warranty.
Fig. 143 Types of oil
according to temperature
Engine type Specification
Petrol VW 501 01/ VW 502 00/ VW 504 00
Diesel VW 505 00/ VW 505 01/ VW 507 00/ VW 506 01
Diesel Injector Pump
a)
a)Only use recommended oils, otherwise you may damage the engine.
VW 505 01/ VW 507 00/ VW 506 01
Diesel Injector Pump Motor 118 kW
a)
VW 506 01/ VW 507 00
Diesel Engines with Particulate filter (DPF)
a)
VW 507 00
19)Viscosity: Ability to flow.
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Checking and refilling levels217
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
WARNING
There is a serious danger of accidents if a tyre bursts during driving!•
The tyres must be replaced at the latest when the tread is worn down to
the tread wear indicators. Failure to do so could result in an accident. Worn
tyres do not grip well at high speeds on wet roads. There is also a greater
risk of “aquaplaning”.
•
At continuously high speeds, a tyre with insufficient pressure flexes
more. This causes it to overheat. This can cause tread separation and tyre
blow-out. Risk of accident. Always observe the recommended tyre pres-
sures.
•
If tyres show excessive wear, you should have the running gear checked
by an Authorised Service Centre.
•
Keep chemicals such as oil, fuel and brake fluid away from tyres.
•
Damaged wheels and tyres must be replaced immediately!For the sake of the environment
Under-inflated tyres will increase fuel consumption.Puncture-proof tyres*
Puncture-proof tyres will usually allow the vehicle to continue
even when one of the tyres has a puncture.Vehicles that are factory-fitted with puncture-proof tyres
20)
indicate
on the instrument panel when there is a loss of tyre pressure. Driving on puncture-proof tyres (emergency use)
– Leave the ESP/TCS (electronic stabilisation programme)
switched on, or switch on.
– Drive carefully and at moderate speed (80 km/h maximum).
– Avoid sharp turns and rapid manouevres.
– Avoid driving over obstacles (for example, kerbs) or potholes.
– If the ESP/TCS is frequently activated, check whether there is smoke coming from the tyres or a smell of rubber, or if the vehicle
vibrates or rattles. If this is the case, stop the vehicle.
Puncture-proof tyres are marked on the tyre wall as follows: “DSST”,
“Eufonia”, “RFT”, “ROF”, “RSC”, “SSR” or “ZP”.
The tyre walls of this type of tyre are reinforced. When the tyres lose air, the
tyre walls keep the tyre up (emergency use).
Loss of air pressure in the tyre is shown on the instrument panel. The vehicle
may still be driven for at least 80 km and, under ideal conditions (for example,
no load) further.
The faulty tyre should be replaced as soon as possible. The tyre rim should be
checked for damage at a specialised workshop and replaced as necessary.
We recommend you contact your Authorised Service Centre. If more than one
tyre is being used under emergency co nditions, this reduces the distance
which can be travelled.
Starting driving in emergency conditions
When the loss in tyre pressure is displayed on the instrument panel, this
implies that at least one tyre is being driven in emergency conditions ⇒.
End of emergency operation
Do not drive on if:
20)Depending upon version and country.
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