2013 Seat Altea bonnet

241
Checking and refilling levels
Checking the coolant level and topping up 
The correct coolant level is important for fault-free function-
ing of the engine cooling system.
Fig. 164 In the engine
compartment: Coolant
expansion tank cap
Before opening the bonnet, read and observe the warnings ⇒ 
in
Safety instructions on working in the engine compartment on
page 233.
Opening the coolant expansion tank
– Switch off the engine and allow it to cool.
– To prevent scalding, cover the cap on the coolant expansion
tank with a thick cloth and carefully unscrew the cap ⇒ 
.
Checking coolant level
– Look into the open coolant expansion tank and read off the
coolant level.
– If the level is below the “MIN” mark, top up with coolant. Topping up coolant
–
Only use new coolant liquid.
– Do not fill above the “MAX” mark.
Closing the coolant expansion tank
– Screw the cap on again tightly.
The position of the coolant expansion reservoir is shown in the correspond-
ing engine compartment illustration ⇒ page 291.
Make sure that the coolant meets the required specifications ⇒ page 240.
Do not use a different type of additive if additive G12+ is not available. In
this case use only water and bring the coolant concentration back up to the
correct level as soon as possible by putting in the specified additive
⇒  page 240.
Always top up with new coolant.
Do not fill above the “MAX” mark. Otherwise the excess coolant will be
forced out of the cooling system when the engine is hot.
The coolant additive G12+ (dyed purple) may be mixed with G12 (dyed red)
and also with G 11.
WARNING
Any work carried out in the engine compartment or on the engine must
be carried out cautiously.
● When working in the engine compartment, always observe the safety
warnings ⇒ page 233.
● When the engine is warm or hot, the cooling system is pressurised!
Do not unscrew the cap on the coolant expansion tank when the engine
is hot. This is a burn injury risk. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

244Checking and refilling levels
WARNING
Do not drive unless you have good visibility through all windows!
● Clean the windscreen wiper blades and all windows regularly.
● The wiper blades should be changed once or twice a year.
CAUTION
● Damaged or dirty windscreen wipers could scratch the windscreen.
● Never use fuel, nail varnish remover, paint thinner or similar products to
clean the windows. This could damage the windscreen wiper blades.
● Never move the windscreen wiper or windscreen wiper arm manually.
This could cause damage.
● Do not pull the windscreen wipers forward unless they are in the service
position. Otherwise the bonnet could be damaged.
Note
● The windscreen wiper arms can be moved to the service position only
when the bonnet is properly closed. Changing the rear wiper blade
A good rear wiper blade is essential for clear rear vision.
Damaged wiper blades should be replaced immediately.
Fig. 168 Removing the
rear window wiper blade
Fig. 169 Fitting the rear
window wiper blade


246Checking and refilling levels
WARNING
Before opening the bonnet to check the brake fluid level, read and ob-
serve the warnings ⇒ page 233.

Changing the brake fluid
The Maintenance Programme indicates the brake fluid
change intervals. We recommend that you have the brake fluid changed by a Technical Serv-
ice.
Before opening the bonnet, please read and follow the warnings ⇒ 
in
Safety instructions on working in the engine compartment on page 233 in
section “Safety notes for working in the engine compartment”.
Brake fluid absorbs moisture. In the course of time, it will absorb water from
the ambient air. If the water content in the brake fluid is too high, the brake
system could corrode. This also considerably reduces the boiling point of
the brake fluid. Heavy use of the brakes may then cause a vapour lock
which could impair the braking effect.
Be sure to always use the correct brake fluid. Only use brake fluid that ex-
pressly meets VW 501 14 standards.
You can buy VW 501 14 standard brake fluid in a SEAT dealership or SEAT
Official Service. If none is available, use only high quality brake fluid that
meets DIN ISO 4925 CLASS 4 standards, or USA Standards FMVSS 116 DOT
4.
Using any other kind of brake fluid or one that is not of a high quality may
affect operation of the brake system and reduce its effectiveness. Never use
a brake fluid if the container does not state that it complies with VW 501 14,
DIN ISO 4925 CLASS 4 standards, or USA standards FMVSS 116 DOT 4.
WARNING
Brake fluid is poisonous. Old brake fluid impairs the braking effect.
● Before opening the bonnet to check the brake fluid level, read and ob-
serve the warnings ⇒ page 233.
● Brake fluid should be stored in the closed original container in a safe
place out of reach of children. There is a toxic risk.
● Complete the brake fluid change according to the Maintenance Pro-
gramme. Heavy use of the brakes may cause a vapour lock if the brake
fluid is left in the brake system for too long. This would seriously affect
the effectiveness of the brakes and the safety of the vehicle. This may
cause an accident.
CAUTION
Brake fluid damages the vehicle paintwork. Wipe off any brake fluid from
the paintwork immediately.
For the sake of the environment
The brake pads and brake fluid must be collected and disposed of accord-
ing the applicable regulations. The SEAT Technical Service network has the
necessary equipment and qualified personnel for collecting and disposing
of this waste material. 

248Checking and refilling levels
CAUTION
● Never disconnect the battery if the ignition is switched on or if the en-
gine is running. This could damage the electrical system or electronic com-
ponents.
● Do not expose the battery to direct sunlight over a long period of time,
as the intense ultraviolet radiation can damage the battery housing.
● If the vehicle is left standing in cold conditions for a long period, protect
the battery from freezing. If it freezes it will be damaged. 
Checking the electrolyte level
The electrolyte level should be checked regularly in high-
mileage vehicles, in hot countries and in older batteries. – Open the engine bonnet and the battery cover ⇒ 
in Safety in-
structions on working in the engine compartment on page 233
⇒ 
in Warnings on handling the battery on page 247.
– Check the colour display in the "magic eye" on the top of the
battery.
– If there are air bubbles in the window, tap the window gently
until they disperse.
The position of the battery is shown in the corresponding engine compart-
ment diagram ⇒ page 291.
The “magic eye” indicator, located on the top of the battery changes colour,
depending on the charge state and electrolyte level of the battery.
There are two different colours: ●
Black: correct charge status.
● Transparent/clear yellow: the battery must be replaced. Contact a speci-
alised workshop. 
Charging and changing the vehicle battery
The battery is maintenance-free and is checked during the
inspection service. All work on the vehicle battery requires
specialist knowledge.
If you often drive short distances or if the vehicle is not driven for long peri-
ods, the battery should be checked by a specialised workshop between the
scheduled services.
If the battery has discharged and you have problems starting the vehicle,
the battery might be damaged. If this happens, we recommend you have
the vehicle battery checked by a Technical Service where it will be re-charg-
ed or replaced.
Charging the battery
The vehicle battery should be charged by a specialised workshop only, as
batteries using special technology have been installed and they must be
charged in a controlled environment.
Replacing a vehicle battery
The battery has been developed to suit the conditions of its location and
has special safety features.
Genuine SEAT batteries fulfil the maintenance, performance and safety
specifications of your vehicle. 

273
If and when
Number plate light - C5W
Note
● Depending on weather conditions (cold or wet), the headlights, the fog
lights, the tail lights and the turn signals may be temporarily misted. This
has no influence on the useful life of the lighting system. By switching on
the lights, the area through which the beam of light is projected will quickly
be demisted. However, the edges may continue to be misted.
● Please check at regular intervals that all lighting (especially the exterior
lighting) on your vehicle is functioning properly. This is not only in the inter-
est of your own safety, but also that of all other road users.
● Due to the difficulty in accessing some of the bulbs, any replacement
work should be done by a Technical Service. However, the following is a de-
scription of how to change the lamps except for the fog lights* and interior
lamps. 
Main headlight bulbs
Fig. 181 Main headlight
bulbs
Number plate light
Turn signal
Dipped beam headlights
Main beam headlights
Side light

Turn signal bulbs
Fig. 182 Turn signal bulb
– Raise the bonnet.
– Turn bulb holder ⇒ Fig. 182 A
to the left and pull.
– Remove the bulb by pressing on the bulb holder and rotating at
the same time to the left.
– Installation involves the above steps in reverse sequence. 
A
BCD
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

274If and when
Dipped lights
Fig. 183 Dipped beam
headlights
Fig. 184 Dipped beam
headlights
– Raise the bonnet.
– Move the loops ⇒ Fig. 183 1
in the direction of the arrow and
remove the cover. –
Remove connector ⇒ Fig. 184 2
from the bulb.
– Unclip the retainer spring ⇒ Fig. 184 3
pressing inwards to the
right.
– Extract the bulb and fit the replacement so that the rim of the
attachment plate is on the reflector cut-out. 

275
If and when
Main beam lights
Fig. 185 Main beam
headlights
Fig. 186 Main beam
headlights
– Raise the bonnet.
– Remove the cover ⇒ Fig. 185 C
by pulling on this.
– Remove connector ⇒ Fig. 186 1
from the bulb. –
Press the spring ⇒ Fig. 186 2
inwards and to the right.
– Extract the bulb and fit the replacement so that it sits correctly
into the cut-out on the reflector.
– Installation involves the above steps in reverse sequence. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

276If and when
Side lights
Fig. 187 Side light
Fig. 188 Side light
– Raise the bonnet.
– Remove the cover ⇒ Fig. 187 D
by pulling on this.
– Extract the bulb holder ⇒ Fig. 188 1
outwards. –
Replace the bulb by pulling it out and inserting the replace-
ment.
– Installation is done in the reverse order. 
Tail lights
● Side light
● Brake lights
● Turn signals
● Reverse lights
● Rear fog light 