steering Seat Leon 5D 2010 Workshop Manual

Intelligent technology
188Electronic Stability Programme (ESP)*
ESP reduces the danger of skidding by braking the wheels individually.
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 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 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 ESP
recognizes 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
•It must be remembered that 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 ESP tempt you
into taking any risks when driving, as this can cause accidents.
Caution
•In order to ensure that 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, running
gear or any components affecting the wheels and tyres) could affect the effi-
ciency of the ABS, EDL, ESP and TCS.Anti-lock brake system (ABS)The anti-lock brake system prevents the wheels locking during braking
⇒ page 186.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 slip-
pery conditions where this may otherwise be difficult or even impossible.
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 differ-
ences 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 other
driven wheel via the differential.
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Intelligent technology191
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Brake servo
The brake servo increases the pressure you apply to the brake pedal. The
brake servo works only when the engine is running.
WARNING
•When applying the brakes to clean off deposits on the pads and discs,
select a clear, dry road. Be sure not to inconvenience or endanger other
road users. Risk of accident.•Ensure the vehicle does not move while in neutral, when the engine is
stopped. Failure to do so could result in an accident.Caution
•Never let the brakes “drag” by leaving your foot on the pedal when it is
not necessary to brake. This overheats the brakes, resulting in longer stop-
ping distances and greater wear.•Before driving down a long, steep gradient, it is advisable to reduce speed
and change to a lower gear (or move the gear lever to a lower gear position if
your vehicle has automatic transmission). This makes use of engine braking
and prolongs the service life of the brakes. If you still have to use the brakes,
it is better to brake firmly at intervals than to apply the brakes continuously.Note
•If the brake servo is not functioning due to a malfunction, or if the vehicle
has to be towed, you will have to press the brake pedal considerably harder
to make up for the lack of servo assistance.•If you wish to equip the vehicle with accessories such as a front spoiler or
wheel covers, it is important that the flow of air to the front wheels is not
obstructed, otherwise the brakes can overheat.
Power steering (servotronic*)
Power steering makes it easier to turn the steering wheel
when the engine is running.Power steering assists the driver by reducing the force needed to turn the
steering wheel. In cars equipped with servotronic* power steering the degree
of power assistance is regulated electronically according to road speed.
The power steering will keep on working in spite servotronic* device fails. The
degree of power assistance will, however, no longer adapt to different
speeds. If the electronic regulating system is not working properly, this is
most noticeable when turning the steering wheel at low speeds (for instance
when parking), as more effor t will be required than usual. The fault should be
corrected by a specialised workshop as soon as possible.
Power steering does not work if the engine is off. In this case the steering
wheel requires much more force to turn.
If the steering is held at its turning limit when the vehicle is stationary, this
will place an excessive load on the power steering system. Turning the
steering wheel to its limit places a load on the system, which causes noise. It
will also reduce the idling speed of the engine.
Caution
When the engine is running, do not turn the steering wheel to its limit for
more than 15 seconds. Otherwise, there is a risk of damaging the power
steering.
Note
•The steering wheel can be turned even if the power steering fails or the
engine is switched off (for instance when being towed). However, more effort
will be required to turn the steering wheel.•If the system is leaking or malfunctioning, please take the vehicle to a
specialised workshop as soon as possible.
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Intelligent technology
192•The power steering system requires a special hydraulic fluid. The
container is located in the engine compartment (front left). The correct fluid
level in the reservoir is important for the power steering to function properly.
The hydraulic fluid level is checked at the Inspection Service.
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Wheels and tyres
240Wear indicators
The original tyres on your vehicle have 1.6 mm high tread wear indicators
⇒ page 239, fig. 152 , running across the tread. Depending on the make,
there will be 6 to 8 of them evenly spaced around the tyre. Markings on the
tyre sidewall (for instance the letters “TWI” or other symbols) indicate the
positions of the tread wear indicators. The minimum tread depth required by
law is 1.6 mm (measured in the tread grooves next to the tread wear indica-
tors). Worn tyres must be replaced. Different figures may apply in export
countries ⇒.
Tyre pressure
Incorrect tyre pressure causes premature wear and could cause tyre blow-out.
For this reason, the tyre pressure should be checked at least once per month
⇒ page 237.
Driving style
Fast cornering, heavy acceleration and hard braking all increase tyre wear.
Changing wheels around
If the front tyres are worn considerably more than the rear ones it is advisable
to change them around as shown ⇒page 239, fig. 153. All the tyres will then
last for about the same time.
Wheel balance
The wheels on new vehicles are balanced. However, various factors encoun-
tered in normal driving can cause them to become unbalanced, which results
in steering vibration.
Unbalanced wheels should be rebalanced, as they otherwise cause excessive
wear on steering, suspension and tyres. A wheel must also be rebalanced
when a new tyre is fitted.
Incorrect wheel alignment
Incorrect wheel alignment causes excessive tyre wear, impairing the safety of
the vehicle. If tyres show excessive wear, you should have the wheel align-
ment checked by an Authorised Service Centre.
WARNING
There is a serious danger of accidents if a tyre bursts during driving!•The tyres must be replaced at the latest when the tread is worn down to
the tread wear indicators. Failure to do so could result in an accident. Worn
tyres do not grip well at high speeds on wet roads. There is also a greater
risk of aquaplaning.•At continuously high speeds, a tyre with insufficient pressure flexes
more. This causes it to overheat. This can cause tread separation and tyre
blow-out. Risk of accident. Always observe the recommended tyre pres-
sures.•I f t y r e s s h o w e x ce s s i v e w e a r, y o u s h o u l d h a v e t h e r u n n i n g g e a r ch e cke d
by an Authorised Service Centre.•Keep chemicals such as oil, fuel and brake fluid away from tyres.•Damaged wheels and tyres must be replaced immediately!For the sake of the environment
Under-inflated tyres will increase fuel consumption.Run-flat tyres
Run-flat tyres allow you to continue driving even with a punc-
tured tyre, in the majority of cases.In vehicles that are factory-fitted with run-flat tyres
25) the loss of tyre
pressure is indicated on the instrument panel.
25)Depending upon version and country.
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If and when255
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Fuse cover underneath the steering wheel
– Switch off the ignition and the component concerned.
– Identify the fuse corresponding to the damaged electric
consumer ⇒page 257.
– Take the plastic clip from inside the fuse cover, fit it onto the blown fuse and pull the fuse out.
– Replace the blown fuse (which will have a melted metal strip) with a new fuse of the same ampere rating.
Fuse cover in engine compartment
– Switch off the ignition and its failed electrical component.
– Remove the fuse cover in the engine compartment by pressing the tabs towards the centre of the cover ⇒page 254, fig. 162 .
– Identify the fuse for the affected component ⇒ page 257.
– Take the plastic clip from inside the fuse cover (at left-hand end of the dash panel), fit it onto the blown fuse and pull the fuse out.
– Replace the blown fuse (which will have a melted metal strip) with a new fuse of the same ampere rating.
– Carefully fit the fuse cover back on to ensure no water can enter the fuse box.The individual electrical circuits are protected by fuses. The fuses are located
behind a cover at the left-hand end of the dash panel and on the left-hand
side of the engine compartment. The electric windows are protected by circuit breakers
. These reset automat-
ically after a few seconds when the overload (caused for example by frozen
windows) has been corrected.
Fuses colour code
WARNING
Never “repair” damaged fuses and never replace them with fuses with a
higher rating. Failure to comply could result in fire. This could also cause
damage to other parts of the electrical system.
Note
•If a newly replaced fuse blows again after a short time, the electrical
system must be checked by a specialised workshop as soon as possible.
Colour
Amps
light brown
5
Red
10
Blue
15
Ye l l o w
20
Natural (white)
25
Green
30
orange
40
Red
50
white
80
Blue
100
grey
150
violet
200
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If and when257
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Fuses on left side of dash panelFusesNumber
Consumer
Amps
1
Diagnosis Switchboard/ Instrument lighting/
Headlight control switchboard/ Flow meter/
Heated wipers/ Engine management/ AFS Head-
lamps
10
2
Engine control unit/ ABS-ESP switchboard/ Auto-
matic gearbox/ Instrument panel/ Trailer switch-
board/ Light switch / Brake sensor/ Power
steering/ Right and left headlights
10
3
Airbag
5
4
Heating/ Reverse switch/ ASR-ESP switch/ Elec-
trochrome mirror/ Park Pilot/ Oil level sensor
5
5
Right xenon headlight
10
6
Left xenon headlight
10
7
Vaca n t
8
Trailer hook pre-installation assistant
5
9
Vaca n t
10
Vaca n t
11
Vaca n t
12
Central locking
15
13
Diagnosis/ Light switch/ Rain sensor/ Heated rear
window
10
14
Automatic gearbox / Heating/ Automatic gearbox
lever
10
15
Vaca n t
16
Vaca n t
17
Alarm
5
18
Kombi / levers with START STOP
5
19
Fog light aid
20
20
Navigation/radio with START STOP
15
21
Engine management
10
22
Fan switch
40
23
Electric windows (front)
30
24
Body Control Unit
20
25
Heated rear window
25
26
Rear electric windows
30
27
Engine (fuel control unit/pump relay)
15
28
Convenience controls
30
29
Vaca n t
30
Vaca n t
31
Vacu um pu m p
20
32
Vaca n t
33
Sunroof
25
34
Comfort switchboard/Central locking system
25
35
Vaca n t
36
Headlight washer system
20
37
Heated seats
30
38
Engine management
10
39
Telephone with START STOP
10
Number
Consumer
Amps
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If and when
258Some of the electrical items listed in the table are only fitted on certain
models or are optional extras.
Please note that the above list, while correct at the time of printing, is subject
to alterations. If discrepancies should occur, please refer to the sticker on the
inside of the fuse cover for the correct information for your model.Fuses layout, engine compartment, left partFuses
40
Fan switch
40
41
Rear wiper motor / Switchboard wiring
20
42
12 V socket/ Cigarette lighter
20
43
Trailer bracket preinstallation
15
44
Trailer bracket preinstallation
20
45
Trailer bracket preinstallation
15
46
Vacant
47
Engine management
10
48
Engine management
10
49
Vacant
Number
Consumer
Amps
1
Windscreen wipers
30
2
DQ200 gearbox
30
3
Cable control unit
5
Number
Consumer
Amps
4
ABS
20
5
AQ gearbox
15
6
Instrument panel/Steering column
5
7
Ignition key
40
8
Radio
15
9
Telephone/TomTom Navigator
5
10
Engine management
5
Engine management
10
11
Vacant
12
Electronic control unit
5
13
Petrol injection module supply
15
Diesel injection module supply
30
14
Coil
20
15
Engine management
5
Pump relay
10
16
Right lighting
30
17
Horn
15
18
Vacant
19
Clean
30
20
Water pump
10
Pressure sensor pump for 1.8 engine
20
21a)
Lambda probe
15
22
Brake pedal, speed sensor
5
Number
Consumer
Amps
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If and when
270Towing and tow-startingTo w - s t a r t i n g
The use of jump leads is preferable to tow-starting.We recommend that you do not tow-start your vehicle. Jump-starting
is preferable ⇒ page 267.
However, if your vehicle has to be tow-started:
– Engage the 2nd or the 3rd gear.
– Keep the clutch pressed down.
– Switch the ignition on.
– Once both vehicles are moving, release the clutch.
– As soon as the engine starts, press the clutch and move the gear lever into neutral. This helps to prevent driving into the towing
vehicle.
WARNING
The risk of accidents is high when tow-starting. The vehicle being towed
can easily collide with the towing vehicle.
Caution
When tow-starting, fuel could enter the catalytic converter and damage it.
CommentsPlease observe the following points if you use a tow-rope:
Notes for the driver of the towing vehicle
– Drive slowly at first until the tow-rope is taut. Then accelerate gradually.
– Begin and change gears cautiously. If you are driving an auto- matic vehicle, accelerate gently.
– Remember that the brake servo and power steering are not working in the vehicle you are towing. Brake sooner than normal
and pressing the pedal gently.
Notes for the driver of the towed vehicle
– Ensure that the tow-rope remains taut at all times when towing.Tow-rope or tow-bar
It is easier and safer to tow a vehicle with a tow-bar. You should only use a
tow-rope if you do not have a tow-bar.
A tow-rope should be slightly elastic to reduce the loading on both vehicles.
It is advisable to use a tow-rope made of synthetic fibre or similarly elastic
material.
Attach the tow-rope or the tow-bar only to the towing eyes provided or a
towing bracket.
Driving style
Towing requires some experience, especially when using a tow-rope. Both
drivers should be familiar with the technique required for towing. Inexperi-
enced drivers should not attempt to tow.
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If and when271
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Do not pull too hard with the towing vehicle and take care to avoid jerking the
tow-rope. When towing on an unpaved road, there is always a risk of over-
loading and damaging the anchorage points.
The ignition of the vehicle being towed must be switched on to prevent the
steering wheel from locking and also to allow the use of the turn signals,
horn, windscreen wipers and washers.
As the brake servo does not work if the engine is not running, you must apply
considerably more pressure to the brake pedal than you normally would.
As the power assisted steering does not work if the engine is not running, you
will need more strength to steer than you normally would.
Towing vehicles with an automatic gearbox
•Put the selector lever into position “N”.•Do not drive faster than 50 km/h.•Do not tow further than 50 km.•If a breakdown vehicle is used, the vehicle must be towed with the front
wheels raised.Note
•Observe legal requirements when towing or tow-starting.•Switch on the hazard warning lights of both vehicles. However, observe
any regulations to the contrary.•For technical reasons, vehicles with an automatic gearbox must not be
tow-started.•If damage to your vehicle means that there is no lubricant in the gearbox,
you must raise the drive wheels while the vehicle is being towed.•If the vehicle has to be towed more than 50 km, the front wheels should
be raised during towing, and towing should be carried out by a qualified
person.
•The steering wheel is locked when the vehicle has no electrical power. The
vehicle must then be towed with the front wheels raised. Towing should be
carried out by a qualified person.•The towing eye should always be kept in the vehicle. Please refer to the
notes on ⇒page 270.
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Index
300Oil properties . . . . . . . . . . . . . . . . . . . . . . . . 225
Specifications . . . . . . . . . . . . . . . . . . . . . . . 224
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Engine oil dipstick . . . . . . . . . . . . . . . . . . . . . . . 225
Engine oil pressure Warning lamp . . . . . . . . . . . . . . . . . . . . . 66, 87
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Environmental friendliness . . . . . . . . . . . . 197
Environmental tip Avoiding pollution . . . . . . . . . . . . . . . . . . . . 215
Environmentally friendly driving . . . . . . . . . . . 195
ESP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88, 187 See also Electronic Stability Programme . . 161
Example of menu use Program a speed limit warning . . . . . . . . . . 69
To activate and deactivate the speed limit warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Example of the use of the menus Open the Configuration menu with the MFI lever68
Open the Configuration menu with the steering wheel controls . . . . . . . . . . . . . . . . . . . . . . 69
Examples of menu use Open the main menu . . . . . . . . . . . . . . . . . . 68
Open the winter tyres menu . . . . . . . . . . . . . 69
To close the winter tyres menu . . . . . . . . . . . 69
Exhaust gas purification system . . . . . . . . . . . 194
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 206
FFabric trim cleaning . . . . . . . . . . . . . . . . . . . . . 210
Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fire extinguisher . . . . . . . . . . . . . . . . . . . . . . . . 145
First aid kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Flexible service interval display . . . . . . . . . . . . . 62
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Fog lights with cornering function . . . . . . . . . . 122
Fold down the backrest . . . . . . . . . . . . . . . . . . 140
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Front drink holders . . . . . . . . . . . . . . . . . . . . . . 142
Front interior light Switching off . . . . . . . . . . . . . . . . . . . . . . . . 125
Switching on . . . . . . . . . . . . . . . . . . . . . . . . 125
Front passenger airbag deactivation . . . . . . . . . 44
Front reading lights . . . . . . . . . . . . . . . . . . . . . . 126
Front seat adjustment Lumbar support . . . . . . . . . . . . . . . . . . . . . . 138
Fuel Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Fuel level Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Fuel reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Warning message . . . . . . . . . . . . . . . . . . . . . 67 Fuel Tank
Opening the fuel tank flap . . . . . . . . . . . . . 214
Fuel tank See Fuel reserve . . . . . . . . . . . . . . . . . . . . . . 82
Fuel: save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
GG 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Gear shift pattern . . . . . . . . . . . . . . . . . . . . . . . 170
General overview of the engine compartment 277
Glove compartment . . . . . . . . . . . . . . . . . . . . . 141
Glow plug system . . . . . . . . . . . . . . . . . . . . . . . 164 Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 83
GRA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181HHandbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Warning lamp . . . . . . . . . . . . . . . . . . . . 86, 176
Hazard warning lights . . . . . . . . . . . . . . . . . . . . 122
HBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Head restraints Adjusting . . . . . . . . . . . . . . . . . . . . . . . 136, 137
Adjustment of the head restraint angle . . . 137
Removing . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Headlight flashers . . . . . . . . . . . . . . . . . . . . . . . 124
Headlight range control . . . . . . . . . . . . . . . . . . 121
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