2011 Seat Leon 5D coolant temperature

57
Cockpit
Instruments Instrument overview
The instruments display the vehicle operating status.
Fig. 32 Detailed view of the dash panel: instrument
panel
Detailed view of the dash panel: instrument panel Fuel gauge ⇒ page 58
Multifunction display ⇒ page 61
Engine coolant temperature gauge ⇒ page 58
Rev counter ⇒ page 59
Time adjustment button / trip recorder reset button ⇒ page 59
Speedometer ⇒ page 59 
1
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Safety FirstOperating InstructionsPractical TipsTechnical Specifications

58Cockpit
Fuel gauge  and reserve indicator
Fig. 33 Instrument pan-
el: fuel gauge
Instrument panel: fuel gauge
The fuel tank has a capacity of approx. 55 litres.
When the needle reaches the reserve area ⇒ fig. 33 (arrow), the warning
lamp will light up and an acoustic signal will sound reminding the driver to
refuel. At this point there are still 7 litres of fuel in the tank.
The following text appears on the instrument panel display 1)
PLEASE REFUEL
[XXX]*. Engine coolant temperature gauge

This gauge shows the engine coolant temperature.
Fig. 34 Instrument pan-
el: engine coolant tem-
perature gauge
Needle in cold zone A
Avoid high engine speeds and heavy engine loads
⇒ fig. 34.
Needle in normal zone B
In normal driving conditions, the needle should be in the middle section of
the scale. The temperature may also rise when the engine is working hard,
especially at high outside temperatures. This is no cause for concern as
long as the warning lamp does not light up and no warning message* ap-
pears on the instrument panel display.

1)
Depending on the version of the model.

59
Cockpit
Needle in warning zone C
The warning lamp* ⇒ fig. 48 2 will light up if the needle is in the warning
zone. The following warning message appears on the instrument panel dis-
play 1)
. Stop the vehicle and switch off the engine. Check the coolant level
⇒ page 224 ⇒ 
.
Even if the coolant level is correct do not continue driving. You should ob-
tain technical assistance.
WARNING
When working in the engine compartment, always observe the safety
warnings ⇒ page 217.
CAUTION
Accessories in front of the air inlet reduce the cooling effect of the coolant.
At high outside temperatures and high engine loads, there is a risk of the
engine overheating. 
Rev counter
The rev counter displays the engine speed in revolutions per
minute. The start of the red zone ⇒ fig. 32 4
indicates the maximum engine speed
operating at service temperature. However, it is advisable to change up a in-
to a higher gear, move the selector lever to D or lift your foot off the acceler-
ator before the needle reaches the red zone.
CAUTION
The rev counter needle must never enter the red zone on the scale. Risk of
engine damage.
For the sake of the environment
Changing up into higher gears sooner, following the recommended gear in-
dications ⇒ fig. 38 will help you to reduce fuel consumption, emissions and
also engine noise. 
Speedometer
The speedometer is equipped with a digital odometer and a trip recorder, in
addition to a service intervals display.
During the running-in period, the instructions shown on ⇒ page 189
should be followed. 
Setting the digital clock*
The digital clock is located in the instrument panel display.
– Turn the setting knob ⇒ fig. 32 5
clockwise until the first
“click” to set the hour. The hour will flash. To change the hour,
press the button.
– Turn the setting knob clockwise to the second “click” to set the
minutes. The minutes will flash. To change the minutes, press
the button. 
1)
Depending on the version of the model.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

66Cockpit
This may be deactivated by pressing the button A
(Reset).
The speed may be altered using the rocker switch B
in steps of 5 km/h
within 5 seconds of the initial memory value.
WARNING
There could be black ice on the road surface even if the “snowflake sym-
bol” is not shown. For this reason you should not rely exclusively on this
display - Risk of accident!
Note
When the vehicle is stationary or travelling at very low speeds, the tempera-
ture displayed may be slightly higher than the actual outside temperature
as a result of the heat radiated from the engine. 
Warning or information message in the display
Faults are shown in the display with warning lamps and
warning/information reports.
The system runs a check on certain components and functions when the ig-
nition is switched on and while the vehicle is moving. Functional faults are
indicated by symbols with warning or information messages in the display.
An acoustic warning is given in certain cases.
Warning symbols
There are red warning symbols (priority 1) and yellow warning symbols (pri-
ority 2)
Information text
In addition to warning messages given on a fault, you will receive informa-
tion in the display on procedures or will be asked to carry out certain tasks.
Note
In the case of screens without warning or information texts, faults are indi-
cated exclusively by the warning lamps. 
Warning reports, Priority 1 (red)
If one of these faults occurs, the warning lamp will flash or light up and will
be accompanied by three audible warnings. This is a danger warning. Stop
the vehicle and switch off the engine. Check the fault and correct it. Obtain
professional assistance if necessary.
If several priority 1 faults are detected at the same time, the symbols will be
displayed one after the other for about 2 seconds at a time and will contin-
ue until the fault is corrected.
No menus will be shown in the display for the duration of a priority 1 warn-
ing message.
Examples of priority 1 warning messages (red)
● Brake system symbol  with the warning message STOP BRAKE FLUID
SERVICE MANUAL or STOP BRAKE FAULT SERVICE MANUAL .
● Coolant symbol  with the warning message STOP SEE COOLANT IN-
STRUCTION MANUAL.
● Engine oil pressure symbol  with the warning message STOP ENGINE
OIL PRESSURE LOW! INSTRUCTION MANUAL . 
Warning reports, Priority 2 (yellow)
If one of these faults occurs, the warning lamp lights up, and is accompa-
nied by one audible warning. The function should be checked as soon as
possible. 

78Cockpit
ItemSymbolMeaning of warning and indicator
lampsFurther infor-mation
1Fuel level / reserve⇒ page 81
2Coolant level / coolant temperature⇒ page 82
3Rear fog light switched on⇒ page 82
4
Turn signals in operation⇒ page 83
5Engine fault (petrol engine)⇒ page 83
Glow plug system for diesel engine⇒ page 83
6Main beam switched on⇒ page 83
7Soot accumulation in the diesel engine
particulate filter⇒ page 83
8ABS system fault⇒ page 84
9Windscreen washer fluid level⇒ page 84
10Alternator fault⇒ page 85
11Fasten seat belts!⇒ page 19
12Brake pad worn⇒ page 85
13Tyre pressure⇒ page 85
ItemSymbolMeaning of warning and indicator lampsFurther infor-mation
14Airbag or belt tensioner system fault or
airbag disabled⇒ page 29
⇒ page 32
15Bulb defective⇒ page 87
16Brake fluid required or
brake system fault⇒ page 86
17
Red:
Engine oil pressure
⇒ page 87Yellow:
If flashing: engine oil sensor faulty
If it remains lit: insufficient engine oil
18Handbrake on⇒ page 173
19Cruise speed activated (Cruise control)⇒ page 88
20Door open indicator⇒ page 88
21If it stays lit: ASR (TCS) deactivated⇒ page 89
⇒ page 89
⇒ page 158
22Electromechanical steering⇒ page 88
23Fault in the emission control system⇒ page 88
24If flashing: the Electronic Stability Con-
trol ESC (ESP) or the ASR (TCS) is work-
ing
If it remains lit: ESC (ESP) or ASR (TCS)
faulty⇒ page 89
⇒ page 89
⇒ page 158

25Selector lever lock (automatic gearbox)⇒ page 90 

82Cockpit
Coolant level* / temperature  (red)
The warning lamp lights up if the coolant temperature is too
high or if the coolant level is too low.
There is a fault if:
● The warning symbol does not go out again after a few seconds.
● The warning lamp lights up or flashes while the vehicle is moving, and
three acoustic warning signals ⇒ 
are emitted.
This means that either the coolant level is too low or the coolant tempera-
ture is too high.
Coolant temperature too high
The instrument panel displays the following message 1)
: CHECK COOLANT IN-
STRUCTION MANUAL ⇒  page 224.
First look at the coolant temperature gauge. The coolant temperature is too
high if the needle is over the warning area on the dial. Stop the vehicle,
switch the engine off and wait for it to cool down. Check the coolant level.
If the coolant level is correct, the overheating may be caused by a malfunc-
tion of the radiator fan. Check the radiator fan fuse and have it replaced if
necessary ⇒ page 250.
If the warning lamp lights up again after driving on for a short distance,
stop the vehicle and switch the engine off . Contact an Authorised Service
Centre or a specialised workshop.
Coolant level too low
The instrument panel displays the following message 1)
: STOP CHECK COOL-
ANT INSTRUCTION MANUAL.
First look at the coolant temperature gauge. If the needle is in the normal
range, top up with coolant at the earliest opportunity ⇒ 
.
WARNING
● If your vehicle is immobilised for technical reasons, move it to a safe
distance from traffic. Turn the engine off, turn the hazard lights on and
place the warning triangle.
● Never open the bonnet if you can see or hear steam or coolant escap-
ing from the engine compartment. Risk of scalding. Wait until you can no
longer see or hear escaping steam or coolant.
● The engine compartment is a dangerous area! Before carrying out any
work in the engine compartment, switch off the engine and allow it to
cool down. Always note the corresponding warnings ⇒ page 217.

Coolant temperature  (blue)
This lamp lights up when the coolant is below approximately 45°C. When it
exceeds this temperature the lamp turns off. 
Rear fog light 
This warning lamp lights up when the rear fog light is switched on . For
further information see ⇒ page 115. 
1)
Depending on the version of the model.

149
Air conditioning
Heating
Maximum heat output, which is needed to defrost the windows quickly, is
only available when the engine has reached its operating temperature.
Air conditioner
When the air conditioning system is switched on, not only the temperature,
but also the air humidity in the vehicle interior is reduced. This improves
comfort for the vehicle occupants and prevents misting of the windows
when the ambient air humidity is high.
If the air conditioning system cannot be switched on this may be caused by
the following reasons: ●
The engine is not running.
● The blower is switched off.
● The outside temperature is below +3°C.
● The air conditioning system compressor has been temporarily switched
off because the engine coolant temperature is too high.
● The air conditioner fuse is faulty.
● Another fault in the vehicle. Have the air conditioner checked by a speci-
alised workshop. 
Air recirculation mode 
Air recirculation mode prevents fumes or unpleasant smells from coming from the outside.
Fig. 109 On the dash panel: Climatic controls

Safety FirstOperating InstructionsPractical TipsTechnical Specifications

156Air conditioning
Air conditioner
When the air conditioning system is switched on, not only the temperature,
but also the air humidity in the vehicle interior is reduced. This improves
comfort for the vehicle occupants and prevents misting of the windows
when the ambient air humidity is high.
If the air conditioning system cannot be switched on this may be caused by
the following reasons:
● The engine is not running.
● The AC
button is disconnected.
● The outside temperature is below +3°C.
● The air conditioning system compressor has been temporarily switched
off because the engine coolant temperature is too high.
● The air conditioner fuse is faulty.
● Another fault in the vehicle. Have the air conditioner checked by a speci-
alised workshop.
CAUTION
● If you suspect that the air conditioner is damaged, switch it off with but-
ton AC
to prevent further damage and have it checked by a specialised
workshop.
● Repairs to the air conditioner require specialist knowledge and special
tools. Therefore, we recommend you to take the vehicle to a specialised
workshop.
Note
● If the humidity and temperature outside the vehicle are high, condensa-
tion can drip off the evaporator in the cooling system and so forming a pud-
dle underneath the vehicle. This is completely normal and there is no need
to suspect a leak.
● Keep the air intake slots in front of the windscreen free of snow, ice and
leaves to ensure heating and cooling are not impaired, and to prevent the
windows from misting over. ●
The air from the vents flows through the vehicle interior and is extracted
by slots designed for this purpose. Therefore, do not cover these slots with
items of clothing or other objects.
● The air conditioner operates most effectively with the windows and the
sliding/tilting sunroof* closed. However, if the temperature inside the vehi-
cle is excessive because of the sun, the air inside can be cooled faster by
opening the windows for a short time.
● Do not smoke while air recirculation mode is on, as smoke drawn into
the air conditioning system leaves a residue on the evaporator, producing a
permanent unpleasant odour.
● It is advisable to connect the air conditioning at least once a month, to
lubricate the system gaskets and prevent leaks. If a decrease in the cooling
capacity is detected, an Authorised Service Centre should be consulted to
check the system. 