2011 Seat Leon 5D differential

89
Cockpit
Electronic Stability Control ESC (ESP) *  / 
There are two control lamps for the electronic stability con-
trol. The  lamp provides information concerning the func-
tion and the  provides information on the disconnection
status
Both lamps come on together when the ignition is switched on and should
go out after approx. 2 seconds, which is how long the function check lasts.
This programme includes the ABS, EDL and ASR (TCS). This also includes
the brake assist system (BAS), automatic cleaning of the brake discs and
the trailer stability programme (TSP).
The warning lamp  has the following functions: ● It flashes when the ASR (TCS)/ESC (ESP) is activated when driving.
● It will light up continuously if there is a malfunction in the ESC (ESP).
● The ESC (ESP) lamp will also come on if a fault should occur in the ABS
because the ESC (ESP) operates in conjunction with the ABS.
If the ESP warning lamp  lights up and stays on after the engine is started,
this may mean that the control system has temporarily switched off the ESP.
In this case the ESC (ESP) can be reactivated by switching the ignition off
and then on again. If the warning lamp goes out, this means the system is
fully functional.
The  lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR (TCS) is disconnected after pressing the 
switch. Differential lock fault (EDL)*EDL operates along with the ABS in vehicles equipped with
the Electronic Stability Control ESC (ESP)*
A malfunction in the EDL is indicated by the ABS warning lamp . Take the
vehicle to a specialised workshop as soon as possible. For further informa-
tion on the EDL see ⇒ page 185, Electronic differential lock (EDL)*. 
Traction control system ASR (TCS)*  / 
The traction control system prevents the driven wheels from
spinning when the vehicle is accelerating
There are two warning lamps for the traction control system:  and . Both
lamps come on together when the ignition is switched on and should go out
after approx. 2 seconds, which is how long the function check lasts.
The  lamp has the following function:
● It flashes when the ASR (TCS) is activated while driving.
If the system is deactivated or if it has any fault, the warning lamp will re-
main lit. The ASR (TCS) lamp will also come on if a fault should occur in the
ABS because the ASR (TCS) operates in conjunction with the ABS. For fur-
ther information, see ⇒  page 182, Brakes
The  lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR (TCS) is disconnected after pressing the OFF
switch.
By pressing again, the ASR (TCS) function is reactivated and the warning
lamp switched off. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

158Driving
WARNING (Continued)
● Adjust the driver seat or steering wheel so that there is a distance of
at least 25 cm between the steering wheel and your chest ⇒ fig. 115. If
you fail to observe the minimum distance, the airbag will not protect you.
Risk of fatal injury.
● If your physical constitution does not allow you to maintain the mini-
mum distance of 25 cm, contact an Authorised Service Centre. The Au-
thorised Service Centre will help you to decide if special specific modifi-
cations are necessary.
● If you adjust the steering wheel so that it points towards your face,
the driver airbag will not protect you properly in the event of an accident.
Make sure that the steering wheel points towards your chest.
● When driving, always hold the steering wheel with both hands on the
outside of the ring at the 9 o'clock and 3 o'clock positions. Never hold
the steering wheel at the 12 o'clock position, or in any other manner
(e.g. in the centre of the steering wheel, or on the inside of the rim). In
such cases, if the airbag is triggered, you may sustain injuries to the
arms, hands and head.
 Safety
Electronic Stability Control ESC (ESP)*
The ESC (ESP) helps to make driving safer in certain critical
handling situations.
Fig. 116 Detailed view of
the centre console: ESC
(ESP) button
The Electronic Stability Control ESC (ESP) contains the electronic differential
lock (EDL) and the traction control system ASR (TCS). The ESC (ESP) function
works together with the ABS. Both warning lamps will light up if the ESC
(ESP) or ABS systems are faulty.
The ESC (ESP) is activated automatically when the engine is started.
The ESC (ESP) is always active, and cannot be deactivated. With the ESC
(ESP) switch it is only possible to deactivate the ASR (TCS).
The ASR (TCS) can be deactivated in those cases where wheel sliding is de-
sirable.
For example: 

184Intelligent technology
The ASR (TCS) is connected automatically when the engine starts. If neces-
sary, it may be turned on or off pushing the button on the centre console.
When the ASR (TCS) is disconnected, the warning lamp  OFF
lights up. The
TCS should normally be left on. Only in exceptional circumstances, when the
slipping of the wheels is required, should it be disconnected, for example
● With compact temporary spare wheel.
● When using the snow chains.
● When driving in deep snow or on soft terrain.
● When the vehicle is bogged-down, to free it by rocking.
The TCS should be switched on again as soon as possible.
WARNING
● Remember that the ASR (TCS) cannot defy the laws of physics. This
should be kept in mind, particularly on slippery and wet roads and when
towing a trailer.
● Always adapt your driving style to suit the condition of the roads and
the traffic situation. Do not let the extra safety afforded by ASR (TCS)
tempt you into taking any risks when driving.
CAUTION
● To ensure that the ASR (TCS) functions correctly, all four wheels must be
fitted with the same tyres. Any differences in the rolling radius of the tyres
can cause the system to reduce engine power when this is not desired.
● Modifications to the vehicle (e.g. to the engine, the brake system, run-
ning gear or any components affecting the wheels and tyres) could affect
the efficiency of the ABS and ASR (TCS). XDS*
Driveshaft differential
When taking a bend, the driveshaft differential mechanism allows the outer
wheel to turn at a higher speed than the inner wheel. In this way, the wheel
that is turning faster (outer wheel) receives less drive torque than the inner
wheel. This may mean that in certain situations the torque delivered to the
inner wheel is too high, causing the wheels to spin. On the other hand, the
outer wheel is receiving a lower drive torque than it could transmit. This
causes an overall loss of lateral grip on the front axle, resulting in under-
steer or “lengthening” of the trajectory.
By using the ESC (ESP) sensors and signals, the XDS system is able to de-
tect and correct this effect.
Through the ESC (ESP), the XDS brakes the inner wheel, thereby counteract-
ing the excess drive torque in this wheel. This means that the driver's de-
sired trajectory is much more precise,
The XDS system operates in combination with the ESC (ESP) and is always
active, even when the traction control ASR (TCS) is disconnected.

Electronic Stability Control ESC (ESP) *
General notes
The Electronic Stability Control increases the vehicle's stabil-
ity on the road. The Electronic Stability Control helps reduce the danger of skidding.
The Electronic Stability Control ESC (ESP) includes the ABS, EDL, ASR (TCS)
and Steering manoeuvre recommendations. 

185
Intelligent technology
Electronic Stability Control ESC (ESP)*
The ESC (ESP) reduces the danger of skidding by braking the wheels indi-
vidually.
The system uses the steering wheel angle and road speed to calculate the
changes of direction desired by the driver, and constantly compares them
with the actual behaviour of the vehicle. If the desired course is not being
maintained (for instance, if the vehicle is starting to skid), then the ESC
(ESP) compensates automatically by braking the appropriate wheel.
The forces acting on the braked wheel bring the vehicle back to a stable
condition. If the vehicle tends to oversteer, the system will act on the front
wheel on the outside of the turn.
Steering manoeuvre recommendations
This is a complementary safety function included in the ESC (ESP). This
function aids the driver to better stabilize the vehicle in a critical situation.
For example, in case of sudden braking surface with varied adherence, the
vehicle will tend to destabilise its trajectory to the right or to the left. In this
case the ESC (ESP) recognises the situation and helps the driver with a
counter steering manoeuvre from the power steering.
This function simply provides the driver with a recommended manoeuvre in
critical situations.
The vehicle does not steer itself with this function, the driver has full control
of the vehicle at all times.
WARNING
● Remember that ESC (ESP) cannot defy the laws of physics. This
should be kept in mind, particularly on slippery and wet roads and when
towing a trailer.
● Always adapt your driving style to suit the condition of the roads and
the traffic situation. Do not let the extra safety afforded by ESC (ESP)
tempt you into taking any risks when driving.
CAUTION
● To ensure that the ESC (ESP) functions correctly, all four wheels must be
fitted with the same tyres. Any differences in the rolling radius of the tyres
can cause the system to reduce engine power when this is not desired.
● Modifications to the vehicle (e.g. to the engine, the brake system, run-
ning gear or any components affecting the wheels and tyres) could affect
the efficiency of the ABS, EDL, ESC (ESP) and ASR (TCS). 
Anti-lock brake system (ABS)
The anti-lock brake system prevents the wheels locking during braking
⇒ page 183. 
Electronic differential lock (EDL)*
The electronic differential lock helps prevent the loss of trac-
tion caused if one of the driven wheels starts spinning.
EDL helps the vehicle to start moving, accelerate and climb a gradient in
slippery conditions where this may otherwise be difficult or even impossi-
ble.
The system will control the revolutions of the drive wheels using the ABS
sensors (in case of an EDL fault the warning lamp for ABS lights up)
⇒ page 84.
At speeds of up to approximately 80 km/h, it is able to balance out differen-
ces in the speed of the driven wheels of approximately 100 rpm caused by a
slippery road surface on one side of the vehicle. It does this by braking the
wheel which has lost traction and distributing more driving force to the oth-
er driven wheel via the differential. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

Correct sitting positionFront passenger . . . . . . . . . . . . . . . . . . . . . . 12
Incorrect sitting position . . . . . . . . . . . . . . . 15
Cruise control warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 88
Cruise control system . . . . . . . . . . . . . . . . . . . . 178
Cruise control* Complete system deactivation . . . . . . . . . 180
Cruise speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 88
Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 42
D Danger of fitting a child seat on the front pas- senger seat . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Dash panel cleaning . . . . . . . . . . . . . . . . . . . . 205
Daytime lights . . . . . . . . . . . . . . . . . . . . . . . . . 117
Deactivating front passenger airbag Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 45
Deactivating the airbag Front passenger airbag . . . . . . . . . . . . . . . . 44
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Diesel engine Winter driving . . . . . . . . . . . . . . . . . . . . . . . 216
Diesel engine particulate filter . . . . . . . . . . . . 191
Differential lock . . . . . . . . . . . . . . . . . . . . . . . . 185 Differential lock fault (EDL)
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 89
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Dipped beam headlights . . . . . . . . . . . . . . . . . 115
Display (without warning or information texts) 61
Disposal Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Seat belt tensioners . . . . . . . . . . . . . . . . . . . 29
Door lock cylinders . . . . . . . . . . . . . . . . . . . . . . 203
Door release lever . . . . . . . . . . . . . . . . . . . . . . . 55
Doors Childproof locks . . . . . . . . . . . . . . . . . . . . . 102
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 88
Driver see Correct sitting position . . . . . . . 10, 11, 12
Driveshaft differential XDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Drive wheels traction control system . . . . . . . 183
Driving Driving abroad . . . . . . . . . . . . . . . . . . . . . . 194
Economically / Environmentally friendly . 191
With a trailer . . . . . . . . . . . . . . . . . . . . . . . . 196
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . 194 Headlights . . . . . . . . . . . . . . . . . . . . . . . . . 194
Driving programmes . . . . . . . . . . . . . . . . . . . . 168
Driving safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Driving with an automatic gearbox / DSG auto- matic gearbox* . . . . . . . . . . . . . . . . . . . . . . . 169
Duplicate keys . . . . . . . . . . . . . . . . . . . . . . . . . 103
Dust filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Dynamic cornering lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120Dynamic headlight range control . . . . . . . . . . 119
E
Economical driving . . . . . . . . . . . . . . . . . . . . . . 191
EDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 84
Electrical sockets . . . . . . . . . . . . . . . . . . . . . . . 141
Electric power steering Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 88
Electronic differential lock . . . . . . . . . . . . . . . . 185 Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 84
Electronic immobiliser . . . . . . . . . . . . . . . . 90, 160
Electronic Stability Control . . . . . . . . . . . . . . . 184 Description . . . . . . . . . . . . . . . . . . . . . . . . . 158
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 89
Emergency braking warning . . . . . . . . . . 121, 182
Emergency manual locking . . . . . . . . . . . . . . . 101
Emergency opening Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Emission control system Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 88
Engine Running in . . . . . . . . . . . . . . . . . . . . . . . . . 189
Engine compartment Working in the engine compartment . . . . 217
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . 224
Engine fault Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 83
Engine management Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 83
293
Index