1993 VOLKSWAGEN GOLF overheating

Downloaded from www.Manualslib.com manuals search engine DRIVING TIPS

Trouble-free functioning of the ex­haust emission control system is de­
c isi ve for the enviro nment-friendly oper­
ation of the vehicle .
The follow ing points should therefore
be noted:
• Vehicles fitted with a catal ytic con verter
may onl y be driven on unleaded petrol (see
page 82).
• Never drive until the fuel tank
is com­
pletely empty on vehicles with a catal yst.
The irregular fuel supply ca n cause misfir­
ing This allows un burnt fuel into the ex­
haust system. This can cause overheating
and damage to the catalyst.
• If whilst driving, the engine misfires,
loses power and runs unevenly, this could
be due to a fault in the ignition system . In a
case like this, unburnt fuel can enter the ex­
haust system and then escape to atmos­
phere. Furthermore, the catalytic converter
could become damaged due to overheat­
ing The vehicle speed
must be reduced im­
mediately and the defect should be elImIn­
ated at the nearest Volkswagen dealer.
• Do not sw itch
off ignition whilst driving
- see page 38 . •
Do not
overfill engine oil-see page 95.
•
Do not tow start vehicle for more than 50 m -see page 130.
Attention Due to high temperatures which can occur in the catalytic con­verter on petrol engine vehicles in very unfavourable conditions, the vehicle should not be parked so that the catalytic converter can come into contact with in­flammable materials_
Note
Even in the case of a perfectl y working ex­
haust emission control sy stem there can,

under certain engine operating conditions,

be a sulphur-type exhaust smell.

This depends upon the sulphur content
in
the fuel being used.

Quite often this
can be remedied by select­

ing another brand of fuel or, filling up with

unleaded premium petrol.

74

Downloaded from www.Manualslib.com manuals search engine Filling the tank
B1H-040
When tank cap has been taken off it can be
placed on the tank flap -see illustration.
r::ljb As soon as the correctly oper­~ated automatic nozzle switches off for the first time, the tank is full. Do not try then to put more fuel in because the expansion space in tank will be filled -the fuel can then over­flow when it becomes warm.
After filling tank, screw cap on until it clicks
audibly .
The
filler neck
is under a small flap in the
right rear side panel.
With the central locking ' the tank flap is also locked and unlocked automatically. If the central locking system is defective the fiapcanbeopenedbyhand-seene~page.
The tank holds about
-55 Itr (12 gallons) on the Golf saloon
- 60 Itr.
(13 gal lons) on the Golf estate
- 651tr .
(14 gallons) on the Golf syncro
Open
tank flap as shown in left illustr ation.
Note
• Never drive until 1he fuel tank is completely empty on vehicles with a catalytic converter. The irregular fuel supply can cause misfiring, which allows unburnt fuel into the exhaust system. This can cause overheating and damage to the cata­lyst.
• Note any lega l requirements when carry­
ing a spa re fuel canis ter. For safety reasons we do not recommend carrying a spare fuel
canister. In the event of an accident the can­
ister could be damaged and the fuel spilt.
81

Downloaded from www.Manualslib.com manuals search engine GENERAL MAINTENANCE

Coolant losses
Coolant loss normally indicates leaks in the
system . In this case the cooling system
should be checked by a Volkswagen dealer
w it h out delay . It is not sufficient merely to
add coolant.
Ii'! ~ ~MI~d ~v~t~m IMMS canonly occur if the boiling point of the coolant is exceeded as a result of overheating, and coolant is forced out of the system.
Topping up coolant
Switch engine off and let it cool down . Then
cover expansion tank cap with a cloth and
turn cap carefully
to the left
and remove.
Attention Do not remove expansion tank cap when engine is hot -Danger of scalding. System is under pressure.
If, in an emergency only water can be added the correct mixture concentration
must be restored with the specified coolant
additive (see previous page) as soon as possible. If
a lot of coolant has been lost.
on l y add cold
coolant after the engine has cooled down.
This will prevent engine damage.
Do not fill above the MAX. mark.
The excess coolant will be forced out
through the pressure rel ief valve in the cap
when engine becomes hot.
Screw cap on again tightly.
Attention The coolant additive and the coolant are a danger to health. The additive must therefore only be stored in the original con­tainer well out of reach of children. If the coolant has to be drained at any time it must be caught and also stored in a safe place.
dih Drained coolant should not nor­~mally be reused, it must be dis­posed of, bearing in mind environ­mental protection regulations.
Fan
The radiator fan is driven electrically and controlled by a thermoswitch from the cool­
ant temperature (also from the engine com­
partment temperature
on some models).
Attention After the engine has been stopped the fan can continue running for a while -even with the engine switched off -(up to about 10 minutes). It can also start to run again suddenly after a short time if -the coolant temperature in­creases due to heat build-up
when engine is hot and the en­gine compartment is heated additionally by strong sun­light.
Special care must therefore be taken when working in the en­gine compartment.
98