2006 SKODA OCTAVIA radiator cap

If the seat belt is not fastened by the driver during the next 90 seconds, the
warning signal is deactivated and the warning light
 lights up permanently.
Further information » page 125, Seat belts. ÐDynamo 
If the warning light lights up  when the engine is running, the vehicle battery is
not being charged.
Seek help from a ŠKODA
specialist garage. The electrical system requires check-
ing. WARNING
If you have to stop for technical reasons, then park the vehicle at a safe dis-
tance from the traffic, switch off the engine and activate the hazard warning
light system » page 44. CAUTION
If the warning light  (cooling system fault) comes on in addition to the warning
light  when driving, stop the vehicle immediately and switch the engine off -
risk of engine damage! ÐOpen door 
The warning light  comes on, if one or several doors are opened.
The warning light comes on even when the ignition is switched off. The warning
light lights up for a maximum of 5 minutes. WARNING
If you have to stop for technical reasons, then park the vehicle at a safe dis-
tance from the traffic, switch off the engine and activate the hazard warning
light system » page 44. Ð Coolant temperature/coolant level 
If the warning light  lights up or flashes, either the coolant temperature is too
high or the coolant level is too low.
The following is displayed in the information display:
Check coolant! Owner's manual!
Stop the vehicle, switch off the engine, check the level of the coolant » page 163,
and refill the coolant if necessary » page 163.
If the coolant is within the specified range, the increased temperature may be
caused by an operating problem at the radiator fan. Check the fuse for the radia-
tor fan, replace if necessary » page 191, Fuses in the engine compartment .
If the warning light  does not go off even though the coolant level is correct
and the fuse for the fan is in working order  do not continue driving!
Seek help from a

ŠKODA specialist garage. WARNING
■ If you have to stop for technical reasons, then park the vehicle at a safe dis-
tance from the traffic, switch off the engine and activate the hazard warning
light system »

page 44.
■ Carefully open the coolant expansion bottle. If the engine is hot, the cooling
system is pressurized - risk of scalding! It is therefore best to allow the engine
to cool down before removing the cap.
■ Do not touch the radiator fan. The radiator fan may switch itself on auto-
matically even if the ignition is off. Ð Bonnet 
The warning light  comes on if the bonnet is unlocked. If the bonnet unlocks
while driving, the warning light  lights up and an audible signal sounds.
The warning light comes on even when the ignition is switched off. The warning
light lights up for a maximum of 5 minutes. £
20 Using the system

Diesel fuel
First read and observe the introductory information and safety warn-
ings on page 155.
Your vehicle can only be operated with
diesel fuel, which complies with the
standard EN
590 (standard DIN 51628 in Germany, standard ÖNORM C 1590 in
Austria, GOST R 52368-2005/EN 590:2004 in Russia).
Operation in winter - Winter-grade diesel fuel
In the winter, only use diesel fuel, which complies with the standard EN 590
(standard DIN 51628 in Germany, standard ÖNORM C 1590 in Austria,
GOST R 52368-2005/EN 590:2004 in Russia). “Winter-grade diesel fuel” will still
operate properly even at a temperature of -20 °C.
It is often the case in countries with different climatic conditions that diesel fuels
available have a different temperature characteristic. The ŠKODA Service Partners
and filling stations in the relevant country will be able to provide you with infor-
mation regarding the diesel fuels available.
Preheating fuel
The vehicle is fitted with a fuel filter preheating system. This secures operation of
a vehicle using diesel fuel down to an environmental temperature of -25 °C.
Fuel additives
Fuel additives, so-called “flow improvers” (petrol and similar products) must not
be added to the diesel fuel. CAUTION
■ Just filling the tank once with diesel fuel that does not comply with the stand-
ard, can cause severe damage to parts of the engine, the fuel and exhaust sys-
tem!
■ If a different fuel other than diesel fuel, which complies to the above mentioned
standards (e.g. petrol) is used by mistake do not start the engine or switch on the
ignition! Extensive damage to engine parts can occur! We recommend that the
fuel system is cleaned by a

ŠKODA Service Partner.
■ Water which has collected in the fuel filter can cause engine faults.
■ Your vehicle is not adapted for use of biofuel (RME), therefore this fuel must not
be refuelled and driven. The use of biofuel (RME) can cause considerable damage
to parts of the engine or fuel system. Ð
ä Engine compartment
ä
Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet 160
Engine compartment overview 160
Checking the engine oil level 161
Replenishing the engine oil 161
Changing engine oil 162
Coolant 162
Checking the coolant level 163
Replenishing the coolant 163
Radiator fan 164
Checking the brake fluid 164
Changing the brake fluid 164
Windscreen washer system 165
There is a risk of injuries, scalding, accidents and fire when working in the en-
gine compartment, e.g. inspecting and replenishing oil and other fluids. For this
reason, it is essential to comply with the warning instructions stated below and
with the general applicable rules of safety. The vehicle's engine compartment is
a hazardous area . WARNING
■ Never open the bonnet if you can see steam or coolant flowing out of the
engine compartment - risk of scalding! Wait until the steam or coolant has
stopped escaping.
■ Turn off the engine and withdraw the ignition key.
■ If the vehicle is fitted with a manual gearbox, move the gearshift lever into
Neutral, or if the vehicle is fitted with an automatic gearbox, move the selec-
tor lever into position P .
■ Firmly apply the handbrake.
■ Allow the engine to cool.
■ For safety reasons, the bonnet must always be properly closed when driving.
This is why after closing the bonnet, the lock must always be checked to en-
sure it has engaged properly. £
158 General Maintenance