Seat Leon 5D 2006 Maintenance programme
Page 181 of 292
Driving and the environment179
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
Connectors
Your vehicle is fitted with a 12-pin co
nnector for the electrical connection 
between the trailer and the vehicle.
If the trailer has a  7-pin plug you will need to use an adapter cable. This is 
available from any SEAT dealer.
Trailer weight / draw bar loading
Never exceed the authorised towing limit. If you do not load the trailer up to 
the maximum permitted trailer weight , you can then climb correspondingly 
steeper gradients.
The maximum trailer weights listed are only applicable for  altitudes up to 
1,000 m above sea level. With increasing altitude the engine power and 
therefore the vehicle's climbing ability are impaired because of the reduced 
air density. The maximum trailer weight has to be reduced accordingly. The 
weight of the vehicle and trailer co mbination must be reduced by 10% for 
every further 1,000 m (or part thereof). The gross combination  weight is the 
actual weight of the laden vehicle plus the actual weight of the laden trailer. 
Where possible, operate the trailer with the maximum permitted  draw bar 
weight  on the ball joint of the towing bracket, but do not exceed the specified 
limit.
The figures for  trailer weights and draw bar weights  that are given on the 
data plate of the towing bracket are for certification purposes only. The 
correct figures for your sp ecific model, which may be  lower than these figures 
for the towing bracket, are given in the registration documents ⇒Section 
“Technical data”.
Distributing the load
Distribute loads in the trailer so that heavy objects are as near to the axle as 
possible. Loads carried in the trailer must be secured to prevent them 
moving. Tyre pressure
Set tyre pressure to the maximum permissible pressure shown on the sticker 
on the inside of the fuel tank flap. Set the tyre pressure of the trailer tyres in 
accordance with the trailer manufacturer's recommendations.
Exterior mirrors
Check whether you can see enough of the road behind the trailer with the 
standard mirrors. If this is not the case you should have additional mirrors 
fitted. Both exterior mirrors should be mounted on hinged extension 
brackets. Adjust the mirrors to give sufficient vision to the rear.
WARNING
Never transport people in a trailer. This could result in fatal accidents.
Note
•
Towing a trailer places additional demands on the vehicle. We recom-
mend additional services between the normal inspection intervals if the 
vehicle is used frequently for towing a trailer.
•
Find out whether special regulations apply to towing a trailer in your 
country.
Ball coupling of towing bracket*Depending on the model version, the ball coupling for the towing bracket may 
be found in the tool box.
The ball coupling is provided with in structions on fitting and removing the 
ball coupling of the towing bracket.
leon_ingles  Seite 179  Donnerstag, 24. August 2006  1:56 13 
Page 182 of 292
Driving and the environment
180
WARNING
The towing bracket ball coupling must be stored securely in the luggage 
compartment to prevent them being flung through the vehicle and causing 
injury.
Note
•
By law, the ball coupling must be removed if a trailer is not being towed 
and it obscures the number plate.
Driving tips
Driving with a trailer always requires extra care.Weight distribution
The weight distribution of a loaded trailer with an unladen vehicle is very 
unfavourable. However, if this cannot be  avoided, drive extra slowly to allow 
for the unbalanced weight distribution.
Speed
The stability of the vehicle and trailer is reduced with increasing speed. For 
this reason it is advisable not to drive at the maximum permissible speed in 
unfavourable road, weather or wind conditions. This applies especially when 
driving downhill.
You should always reduce speed immediately if the trailer shows the slightest 
sign of  snaking . Never try to stop the “snaking” by increasing speed.
Always brake in good time. If the trailer has an  overrun brake, apply the 
brakes  gently at first  and then firmly. This will pr event the jerking that can be 
caused by the trailer wheels locking. Select a low gear in good time before 
going down a steep descent. This enables you to use the engine braking to 
slow down the vehicle. Heating
At very high temperatures and during prolonged ascents, driving in a low gear 
and high engine speed, always moni
tor the temperature indicator for the 
coolant  ⇒page 55.
Electronic Stabilisation Program*
Do not switch off the ESP* when towing a trailer. The ESP* makes it easier to 
stabilise if the trailer starts to snake.
Driving economically and with respect for the 
environmentGeneral notes
Fuel consumption depends largely on your personal driving 
style.Fuel economy, environmental impact and wear on the engine, brakes and 
tyres depend largely on three factors:•
Personal driving style
•
Conditions of use (weather, road surface)
•
Technical requirements
By adopting an economical driving style and anticipating the traffic situation 
ahead, you can easily reduce fuel consumption by 10-15%. This section 
suggests methods of lessening the impact on the environment and reducing 
your operating costs at the same time.
leon_ingles  Seite 180  Donnerstag, 24. August 2006  1:56 13 
Page 183 of 292
Driving and the environment181
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
Think ahead when drivingA vehicle uses most fuel when accelera ting. If you think ahead when driving, 
you will need to brake less and thus accelerate less. Wherever possible, let 
the vehicle roll slowly to a stop, for instance when you can see that the next 
traffic lights are red.Regular servicingBy taking your car to an Authorised Service Centre for regular servicing you 
can establish a basis for good fuel economy  before you start driving. A well-
serviced engine gives you the benefit of  improved fuel efficiency as well as 
maximum reliability and an enhanced resale value.
A badly serviced engine can consume up to 10% more fuel than necessary.
Check the  oil level every time you fill the tank  ⇒page 203. Oil consumption 
depends to a great extent on the engine load and engine speed. Depending 
on your personal driving style, oil consumption can be up to 1 litre per 1,000 
km.
Avoid short journeysThe engine and catalytic converter need to reach their proper  working 
temperature  in order to minimise fuel consumption and emissions.
Directly after a cold start, the engine uses about 50-70 litres of fuel per 
100 km. This figure then drops to 20 -30 litres per 100 km after about one 
kilometre. The engine only reaches its working temperature after about  four 
kilometres, when fuel consumption will return to a normal level. You should 
therefore avoid short journeys.
The  ambient temperature  has a decisive influence.
The illustration shows the different rates of fuel consumption for the same 
distance at both +20°C and -10°C. Your vehicle will use more fuel in winter 
than in summer.
Fig. 138  Fuel consump-
tion in litres per 100 km at 
two different ambient 
temperatures
leon_ingles  Seite 181  Donnerstag, 24. August 2006  1:56 13 
Page 184 of 292
Cleaning and caring for your vehicle
182Cleaning and caring for your vehicleGeneral notesRegular washing and care help maintain the value of your 
vehicle.Regular care
Regular and expert care helps to  maintain the value of the vehicle. This may 
also be one of the requirements for  acknowledging warranty claims in the 
event of corrosion or paint defects.
The best way to protect the car against environmental contaminants is to 
wash and wax it  frequently. The longer substances such as insects, bird drop-
pings, resinous tree sap, road dirt, industrial deposits, tar, soot or road salt 
and other aggressive materi als remain on the vehicle, the more damage they 
do to the paintwork. High temperatures (for instance in strong sunlight) 
further intensify the corrosive effect.
After the period when salt is put on the roads it is important to have the 
underside  of the vehicle washed thoroughly.
Car care products
Car care products are available from your Authorised Service Centre. Keep the 
product instructions until you have used up the product.
WARNING
•
Car care products can be toxic. For this, they must always be kept 
closed in their original container. Keep out of children's reach. Failure to 
comply could result in poisoning.
•
Always read and observe the instructions and warnings on the package 
before using car care products. Improper use could damage your health or  your vehicle. The use of certain products may produce noxious vapours; 
these should be used in well ventilated areas.
•
Never use fuel, turpentine, engine oil, nail varnish remover or other 
volatile fluids. These are toxic and highly flammable. There is a fire / explo-
sion risk.
•
Before you wash your vehicle, or ca rry out any maintenance, switch off 
the engine, apply the handbrake firmly and remove the key from the igni-
tion.Caution
Never attempt to remove dirt, mud or dust if the surface of the vehicle is dry. 
Never use a dry cloth or sponge for clea ning purposes. This could damage the 
paintwork or glass on your vehicle. Soak dirt, mud or dust with plenty of 
water.
For the sake of the environment
•
When purchasing car care products,  try to select ones which are not 
harmful to the environment.
•
Left over car care products should not be disposed of with ordinary house-
hold waste. Observe the disposal information on the package.WARNING (continued)
leon_ingles  Seite 182  Donnerstag, 24. August 2006  1:56 13 
Page 185 of 292
Cleaning and caring for your vehicle183
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
Care of the vehicle exteriorAutomatic car washesThe paint is so durable that the car can normally be washed without problems 
in an automatic car wash. However, the effect on the paint depends to a large 
extent on the design of the car wash, the brushes used, the filtering of the 
wash water and the type of detergents and wax solutions used, etc.
After the car has been washed, the brakes could respond later than normal as 
the brake discs and brake pads will be wet, or even frozen in winter. You must 
“dry” the brakes by applying the brakes carefully several times  ⇒page 173, 
“Braking effect and braking distance”.
WARNING
Moisture, ice and salt on the brakes may affect braking efficiency. Risk of 
accident.Washing by handWashing the vehicle
– First soften the dirt with plenty of water and rinse off.
– Clean the vehicle with a soft sponge, a glove or a brush. Start on  the roof and work your way down. Use only light pressure.
– Rinse the sponge or glove as much as possible.
– Special car shampoo should only be used for very stubborn dirt. – Clean the wheels, sill panels etc. last using a different sponge or 
glove.
– Rinse the vehicle thoroughly with water.
– Dry the surface of the vehicle gently using a chamois leather.
–If it is  cold, dry the rubber seals and th e surfaces they touch with 
a cloth to prevent them freezing. Apply silicone spray to the 
rubber seals.
After cleaning the vehicle
– If possible, avoid sudden braking directly after washing the  vehicle. You must “dry” the brakes by applying the brakes care-
fully several times  ⇒page 173, “Braking effect and braking 
distance”.
WARNING
•
The ignition must always be switched off before the vehicle is washed.
•
Protect your hands and arms from cuts on sharp metal edges when 
cleaning the underbody, the inside of the wheel housings etc. Risk of 
injury.
•
Moisture, ice and salt on the brakes  may affect braking efficiency. Risk 
of accident.Caution
•
Never attempt to remove dirt, mud or dust if the surface of the vehicle is 
dry. Never use a dry cloth or sponge for cleaning purposes. This could scratch 
the paintwork or glass on your vehicle.
•
Washing the vehicle in cold weather: if the vehicle is rinsed with a hose, 
do not direct the water into the lock cylinders or the gaps around the doors, 
leon_ingles  Seite 183  Donnerstag, 24. August 2006  1:56 13 
Page 186 of 292
Cleaning and caring for your vehicle
184luggage compartment, or bonnet. This could cause them to freeze. Otherwise 
there is a risk of malfunction.
For the sake of the environment
In the interests of environmental protection, the car should be washed only 
in specially provided wash bays. This prevents toxic, oil-laden waste water 
entering the sewerage system. In some districts, washing vehicles anywhere 
else may be prohibited.
Note
Do not wash the vehicle in direct sunlight.Washing the car with a high pressure cleaner
Be particularly careful when using a high pressure cleaner!– Always observe the instructions for the high-pressure cleaner, 
particularly those concerning the  pressure and the spraying 
distance .
– Increase the spraying distance for soft materials and painted  bumpers.
– Do not use a high pressure cleaner to remove ice or snow from  windows  ⇒page 185.
– Never use concentrated jet nozzles or so-called “dirt blasters”  ⇒ .
– If possible, avoid sudden braking directly after washing the  vehicle. You must “dry” the brakes by applying the brakes care-
fully several times  ⇒page 173.
WARNING
•
Never wash tyres with a concentrated  jet or cylindrical jet (“rotating 
nozzle”). Even at large spraying distanc es and short cleaning times, visible 
and invisible damage can occur to the tyres. This may cause an accident.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk 
of accident.Caution
•
Do not use water hotter than 60°C. This could damage the car.
•
To avoid damage to the vehicle, maintain a sufficient distance from sensi-
tive materials for example: flexible hoses, plastic, sound proofing, etc. This is 
especially important for bumpers painted in the same colour as the vehicle. 
The closer the nozzle is to the surface, the greater the wear on the material.
Waxing the car
Regular waxing protects the paintwork.You need to apply wax to your car if water does not form small drops and run 
off the paintwork when it is  clean.
Good quality  hard wax is available from your Authorised Service Centre.
A good coat of wax helps to protects the paintwork from environmental 
contaminants  ⇒page 182. It is also effective in protecting against minor 
scratches.
Even if a  wax solution  is used regularly in the car wash, it is advisable to 
protect the paint with a coat of hard wax at least twice a year.
leon_ingles  Seite 184  Donnerstag, 24. August 2006  1:56 13 
Page 187 of 292
Cleaning and caring for your vehicle185
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
Polishing the paintwork
Polishing brings back gloss to the paintwork.Polishing is only necessary if the paint has lost its shine, and the gloss cannot 
be brought back by applying wax. Polish can be obtained from your Author-
ised Service Centre.
The car must be waxed after polishing if the polish used does not contain wax 
compounds to seal the paint ⇒page 184, “Waxing the car”.
Caution
To prevent damage to the paintwork:•
Do not use polishes and hard wax on painted parts with a matt finish or 
on plastic parts.
•
Do not polish your vehicle in a sandy or dusty environment.
Caring for plastic parts
Solvents will damage plastic parts.If normal washing fails to clean plastic parts, clean them with special  solvent-
free  plastic cleaning and care products.
Caution
•
The use of liquid air conditioners directly over the air vents of the vehicle 
may damage the plastic parts if the liquid is accidentally spilled.
•
Cleaning products which contain solvents will damage the material.
Cleaning windows and exterior mirrorsCleaning the windows
– Moisten the windows with commercially available, alcohol based  glass cleaner.
– Dry the windows with a clean chamois leather or a lint-free cloth.
Removing snow
– Use a small brush to remove snow from the windows and mirrors.
Removing ice
– Use a de-icer spray.Use a clean cloth or chamois leather to dry the windows. Chamois leathers 
that have been used on painted surfaces are not suitable for use on windows. 
They will be soiled with wax deposits that would smear the windows.
If possible use a de-icing spray to remove ice. If you use an ice scraper, push 
it in one direction only. Do not move it to and fro.
Use window cleaner or a silicone remove r to clean off rubber, oil, grease and 
silicone deposits.
Wax deposits have to be removed with a special cleaner that is available from 
your Authorised Service Centre. Wax deposits on the windscreen could cause 
the wiper blades to judder. A window cleaner specifically for removing wax 
will stop the blades juddering if added to the windscreen washer fluid. 
Grease removing cleaners will not remove wax deposits.
Caution
•
Never use warm or hot water to remove snow and ice from windows and 
mirrors. This could cause the glass to crack!
leon_ingles  Seite 185  Donnerstag, 24. August 2006  1:56 13 
Page 188 of 292
Cleaning and caring for your vehicle
186•
The heating element for the rear window is located on the inner side of the 
window. To prevent damage, do not put stickers over the heating elements on 
the inside of the window.
Cleaning windscreen wiper bladesClean wiper blades are essential for clear vision.
1.  Use a soft cloth to remove dust and dirt from the windscreen  wiper blades.
2.  Use window cleaner to clean the windscreen wiper blades. Use a  sponge or a cloth to remove stubborn stains.Care of rubber seals
If rubber seals are well looked after, they will not freeze so 
quickly.1.  Use a soft cloth to remove dust and dirt from the rubber seals.
2.  Apply a specialist care product to the rubber seals.The weather strips on the doors, windows, bonnet and rear lid will remain 
pliable and last longer if they are treated with a suitable care product (for 
example silicone spray).
Caring for rubber seals will also prevent premature ageing and leaks. The 
doors will be easier to open. If rubber seals are well looked after, they will not 
freeze so quickly in winter.
Door lock cylinders
The door lock cylinders can freeze up in winter.To de-ice the lock cylinders you should only use spray with lubricating and 
anti-corrosive properties.Cleaning chrome parts1.  Clean chrome parts with a damp cloth.
2.  Polish chrome parts with a soft, dry cloth.If this does not provide satisfying results, use a specialist  chrome cleaning 
product . Chrome cleaning products will remo ve stains and coatings from the 
surface.
Caution
To prevent scratching chrome surfaces:•
Never use an abrasive care product on chrome.
•
Do not clean or polish chrome part s in a sandy or dusty environment.
Steel wheels– Clean steel wheels regularly using a separate sponge.Use an industrial cleaner to remove brake dust. Any damage to the paint on 
steel wheels should be repaired before the metal starts to rust.
leon_ingles  Seite 186  Donnerstag, 24. August 2006  1:56 13 
Page 189 of 292
Cleaning and caring for your vehicle187
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l  D a t a
WARNING
•
Never wash tyres with a cylindrical jet. Even at large spraying distances 
and short cleaning times, visible and invisible damage can occur to the 
tyres. This may cause an accident.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk 
of accident. If possible, avoid sudden braking immediately after washing 
the vehicle. You must “dry” the brakes by applying the brakes carefully 
several times ⇒ page 173, “Braking effect and braking distance”.
Cleaning alloy wheelsEvery two weeks
– Wash salt and brake dust from alloy wheels.
– Use an acid free detergent to clean the wheels.
Every three months
– Apply a hard wax compound to the wheels.Alloy wheels require regular attention to preserve their appearance. It is 
important to remove road salt and brake dust by washing the wheels at 
regular intervals, otherwise the finish will be impaired.
Always use an acid-free detergent for alloy wheels.
Car polish or other abrasive agents should not be used. If the protective 
coating is damaged, e.g. by stone impact, the damaged area should be 
repaired immediately.
WARNING
•
Never wash tyres with a cylindrical jet. Even at large spraying distances 
and short cleaning times, visible and invisible damage can occur to the 
tyres. This may cause an accident.
•
Moisture, ice and salt on the brakes  may affect braking efficiency. Risk 
of accident. If possible, avoid sudden braking immediately after washing 
the vehicle. You must “dry” the brakes by applying the brakes carefully 
several times ⇒ page 173, “Braking effect and braking distance”.
Underbody sealant
The underside of the vehicle is coated to protect it from corro-
sion and damage.The protective coating could be damage d when driving. We recommend that 
the protective coating under the body and on the running gear should be 
checked, and reinstated if necessary, before and after the winter season.
We recommend that repair work and addi tional anti-corrosion work is carried 
out by your Authorised Service Centre.
WARNING
Do not apply underseal or anti-corros ion coatings to the exhaust pipes, 
catalytic converter or the heat shield s on the exhaust system. The heat of 
the exhaust system or the engine could cause them to ignite! This is a fire 
hazard.
leon_ingles  Seite 187  Donnerstag, 24. August 2006  1:56 13 
Page 190 of 292
Cleaning and caring for your vehicle
188Cleaning the engine compartment
Take special care when cleaning the engine compartment.Anti-corrosion treatment
The engine compartment and the surface of the power unit are given anti-
corrosion treatment at the factory.
Good corrosion protection is particularl y important in winter when the car is 
frequently driven on salted roads. To  prevent the salt corroding the vehicle, 
the entire engine compartment should be thoroughly cleaned before and 
after the salting period.
Your Authorised Service Centre  is able to provide the correct cleaning and 
preserving products and has the necessary equipment. For this reason, we 
recommend having this work performed by them.
The anti-corrosion protection is usually removed if the engine compartment 
is cleaned with grease removing solutions, or if you have the engine cleaned. 
If this job is carried out, you should ensure that all surfaces, seams, joints and 
components in the engine compartmen t are given anti-corrosion treatment 
afterwards.
WARNING
•
When working in the engine compartment, always observe the safety 
warnings ⇒ page 198.
•
Switch off the engine, apply the  parking brake firmly and always 
remove the key from the ignitio n before you open the bonnet.
•
Allow the engine to cool before  you clean the engine compartment.
• Do  not c l ean the underside of vehicle wheel arches without protecting 
your hands and arms. You may cut your self on sharp-edged metal parts. 
Failure to comply could result in injury.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk 
of accident. If possible, avoid sudden braking immediately after washing 
the vehicle.
•
Never touch the radiator fan. It is temperature-controlled and could 
start automatically, even when the key is removed from the ignition!For the sake of the environment
Fuel, grease and oil deposits could be removed when the engine is washed. 
The polluted water must be cleaned in an oil separator. For this reason, 
engine washing should be carried out only  by a qualified workshop or a suit-
able filling station.Care of the vehicle interiorCleaning plastic parts and the dash panel– Use a clean, damp cloth to clean plastic parts and the dash  panel.
– If this does not provide satisfactory results, use a special  solvent-free  plastic cleaning product.
WARNING
Never clean the dash panel and surface  of the airbag module with cleaners 
containing solvents. Solvents cause the surface to become porous. If the 
airbag inflates, disintegrating plastic parts can cause substantial injuries.
WARNING (continued)
leon_ingles  Seite 188  Donnerstag, 24. August 2006  1:56 13