2003 SKODA SUPERB ECU

Towing a trailer
184
Towing a trailer
Towing a trailer
Technical requirements
The towing device must satisfy certain technical require-
ments.
Your vehicle is designed primarily for transporting persons and luggage.
It can, however, also be used for towing a trailer - provided certain tech-
nical equipment is fitted.
If your vehicle has already been supplied with a factory-fitted towing
device then everything that is necessary for towing a trailer in technical
terms, and in terms of the law, has already been taken into account.
Your vehicle is fitted with a 13-pin power socket for the electrical connec-
tion between the vehicle and trailer. If the trailer which you wish to tow has
a 7-pin connector , you can use a suitable adapter cable. You can obtain
such an adapter from a Škoda dealer.
This work must be carried out in accordance with the manufacturer's
specifications if a towing device is retrofitted.
Škoda dealers are familiar with details relating to retrofitting a towing
device and for any necessary modifications to the cooling system.
General Maintenance
There are a number of points to pay attention to when
towing a trailer.
Trailer load
The permissible trailer load must on no account be exceeded.
You can negotiate appropriately steeper inclines and descents if you do
not make full use of the permissible trailer load.
The trailer loads specified only apply for altitudes up to 1 000 metres
above mean sea level. The fact that the engine power output drops with
increasing height due to a lowering of air pressure and thus the ability to
climb, means that the towed weight must be reduced by 10% for every
further increase of 1 000 metres in height above sea level. The towed
weight is the weight of the (laden) vehicle and the (laden) trailer together.
One should take this into account before driving up to higher altitudes.
The trailer and drawbar load information on the type plate of the
towing device are merely test data for the towing device The data
relating to your vehicle, which is often less than this test data, can
be found in your vehicle registration documents or in the brochure -
Technical Data.
Distribution of the load
Distribute the load in the trailer in such a way that any heavy items are
located as close as possible to the axle. Secure the items to prevent them
slipping.
You can make full use of the permissible drawbar load indicated on the
ball head of the towing device, but you must not exceed this.
WARNING
We recommend that you have the towing device installed by a
Škoda dealer. He is familiar with all the relevant details relating to
retrofitting such equipment. There is a risk of an accident if the
towing device is not properly fitted.

Fuel
200
Prewarming fuel
The vehicle is fitted with a fuel filter prewarming system. This secures
operation of a vehicle using diesel fuel down to an environmental temper-
ature of -25°C.
Biofuel
We recommend refuelling with diesel fuel at temperatures below -10°C.
Caution
It is not permitted to add the various fuel additives on the market, including
petrol, to diesel fuel in order to improve its flow properties.
Refuelling
Refuelling procedure
Opening the fuel filler cap
– Unlock the fuel filler flap with the switch in the driver door
⇒page 42.
– Open the fuel filler flap fully.
– Unscrew the cap by turning it to the left.
– Place the cap onto the top of the fuel filler flap ⇒fig. 151.
Closing fuel filler cap
– Screw on the cap by turning it to the right until it is heard to lock.
– Press the fuel tank flap closed.
The correct grade of fuel for your vehicle as well as the tyre size and infla-
tion pressures are stated on a sticker affixed to the inside of the fuel filler
flap. Further information on fuel ⇒page 198.
The fuel tank has a capacity of about 62 litres.
Caution
•Remove any fuel which has spilled onto the paintwork of your vehicle
immediately. This particularly applies to biodiesel - risk of paint damage!Fig. 151 Filler flap with
cap unscrewed
WARNING
Pay attention to any legal requirements if you do carry a spare
canister in the vehicle. We do not recommend carrying any fuel
canisters in your vehicle for safety reasons. The canister can be
damaged in the event of an accident and fuel may leak out.

Breakdown assistance
230
– Have all the occupants get out. While changing a wheel, the
occupants of the vehicle should not stand on the road (it is
better behind a crash barrier).
– Apply the handbrake firmly.
– Engage 1st gear or if your vehicle is fitted with an automatic
gearbox, position the selector lever into position P .
– If a trailer is coupled, uncouple it.
– Take the vehicle tool kit and the spare wheel ⇒ page 229
out of the luggage compartment.
Caution
If you have to change a wheel on a slope first block the opposite wheel
with a stone or similar object in order to secure the vehicle from unexpect-
edly rolling away.
Note
Comply with the national legal regulations.
Changing a wheel
Always change a wheel on a level surface as far as possible.
– Take off the full wheel trim/wheel trim cap ⇒page 232,
“Wheel trim caps*” or the caps ⇒page 232, “Wheel bolts with
caps*”.
– Slacken the wheel bolts ⇒ page 233.
– Jack up the vehicle until the wheel is clear of the ground ⇒page 233.
– Unscrew the wheel bolts and place them on a clean surface (cloth, paper etc.).
– Take off the wheel.
– Fit on the spare wheel and tighten the wheel bolts slightly.
– Lower the car.
– Tighten the wheel bolts firmly, alternately and diagonally using the wheel wrench ⇒page 233.
– Mount the full wheel trim/wheel trim cap or the caps.
Note
•All bolts must be clean and must turn easily.
•You must never grease or oil the wheel bolts!
WARNING
•If you find yourself in flowing traffic put on the hazard warning
lights system and place the warning triangle on the side of the road
at the prescribed distance from your vehicle while observing all
national legal provisions. In this way you are protecting not only
yourself but also other road users.
•Never start the engine with the vehicle sitting on the raised jack
- danger of suffering injury!

Breakdown assistance235
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Changing a wheel
– Turn the wheel bolt which is farthest to the top fully out with
the hexagon socket in the screwdriver handle (car tool kit)
and place the bolt down on a clean surface ⇒page 234,
fig. 177 .
– Screw the assembly pin (car tool kit) into the vacant hole ⇒page 234, fig. 178.
– Unscrew the remaining wheel bolts as described above.
– Take off the wheel.
Fitting on wheel
– Push the spare wheel over the assembly pin.
– Screw in the wheel bolts and tighten them slightly with the aid
of the hexagon socket.
– Unscrew the assembly pin and screw in the remaining wheel bolt also slightly.
The wheel bolts must be clean and must turn easily.
The hexagon socket in the handle of the screwdriver makes it simpler to
fit on the wheel bolts. The reversible blade should be pulled out for this
step.
When fitting on unidirectional tyres, ensure that the tyres rotate in the
correct direction ⇒page 225.
Note
Do not use the hexagon socket in the handle of the screwdriver for slack-
ening or tightening the wheel bolts.
Securing wheels against being stolen
You need a special adapter for slackening the safety
wheel bolts.
– Pull off the full wheel trim/cap from the wheel hub or cap from
the safety wheel bolt.
– Push the adapter with its toothed side into the inner toothing of the safety wheel bolt right down in such a way
that only the outer hexagon is jutting out ⇒fig. 179.
– Push the wheel wrench fully onto the adapter .
– Slacken the wheel bolt, or tighten it firmly ⇒page 223.
– Reinstall the full wheel trim/wheel cap after removing the adapter or place the cap onto the safety wheel bolt.
Fig. 179 Safety wheel
bolt with adapter
AB
AA
AB

Fuses and light bulbs
248
Lighting in storage compar tment on front passenger
side
– Insert a small screwdriver into the slot next to the light
⇒fig. 190 and carefully lever out the light in the direction of
the arrow .
– Unplug the connector.
– Take the faulty bulb out of and insert a new one.
– Plug in plug.
– Insert the light and press it into the wall of the storage compartment.
Entry lighting
– Insert a small screwdriver into the slot next to the light ⇒fig. 191 and carefully lever out the light.
– Unplug plug .
– Push away the spring clip on the cover and remove the cover.
– Take the faulty bulb out of and insert a new one.
– Insert the cover again and secure it by locking it in place.
– Plug in plug.
– Insert the light from the rear a nd press it forwards up to the
stop.
Fig. 190 Storage
compartment: Lighting
A1
Fig. 191 Inner part of
the door: Entry light
A1
A2