2011 Seat Leon 5D fuel cap release

190Driving and the environment
WARNING (Continued)
● On steep slopes, if brakes are excessively used, they will overheat.
Before driving down a long steep slope, it is advisable to reduce speed
and change down into a lower gear or range (depending on the type of
transmission). This makes use of engine braking and relieves the brakes.
● Never let the brakes “drag” by applying light pressure. Continuous
braking will cause the brakes to overheat and the braking distance will
increase. Apply and then release the brakes alternately.
● Never let the vehicle run with the engine switched off. The braking
distance is increased considerably when the brake servo is not active.
● If the brake fluid loses its viscosity and is subjected to heavy use, va-
pour bubbles can form in the brake system. This reduces the efficiency of
the brakes.
● Non-standard or damaged front spoilers could restrict the airflow to
the brakes and cause them to overheat. Before purchasing accessories
please observe the relevant instructions ⇒ page 208, Technical modifi-
cations.
● If a brake circuit fails, the braking distance will be increased consider-
ably. Contact a specialised workshop immediately and avoid unnecessa-
ry journeys.

Exhaust gas purification system Catalytic converter*
To maintain the useful life of the catalytic converter
– Use only unleaded petrol with petrol engines, as lead damages
the catalytic converter.
– Do not let the fuel get too low in the tank. –
For engine oil changes, do not replenish with too much engine
oil ⇒ page 222, Topping up engine oil .
– Never tow the vehicle to start it, use jump leads if necessary
⇒ page 263.
If you notice misfiring, uneven running or loss of power when the vehicle is
moving, reduce speed immediately and have the vehicle inspected at the
nearest specialised workshop. In general, the exhaust gas warning lamp
will light up when any of the described symptoms occur ⇒ page 77. If this
happens, unburnt fuel can enter the exhaust system and escape into the en-
vironment. The catalytic converter can also be damaged by overheating.
WARNING
The catalytic converter reaches very high temperatures! There is a risk of
fire.
● Never park where the catalytic converter could come into contact with
dry grass or flammable materials under the vehicle.
● Do not apply additional underseal or anti-corrosion coatings to the
exhaust pipes, catalytic converter or the heat shields on the exhaust sys-
tem. These materials could catch fire when the vehicle is being driven.
CAUTION
Never run the fuel tank completely dry because the irregularity of the fuel
supply may cause ignition problems. This allows unburnt fuel to enter the
exhaust system, which could cause overheating and damage the catalytic
converter.
For the sake of the environment
Even when the emission control system is working perfectly, there may be a
smell of sulphur from the exhaust gas under some conditions. This depends
on the sulphur content of the fuel used. Quite often the problem can be
solved by changing to another brand of fuel. 

Seat belt positionPregnant women . . . . . . . . . . . . . . . . . . . . . 27
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Seat belt protection . . . . . . . . . . . . . . . . . . . . . . 23
Seat belt release . . . . . . . . . . . . . . . . . . . . . . . . 27
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Incorrectly fastened . . . . . . . . . . . . . . . . . . . 28
Not worn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 23
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 19
Seat belt tensioner Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 32
Seat belt tensioners . . . . . . . . . . . . . . . . . . . . . . 29
Seat belt warning lamp . . . . . . . . . . . . . . . . . . . 19
Seat heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Selective opening* . . . . . . . . . . . . . . . . . . . . . . . 98
Selector lever locking . . . . . . . . . . . . . . . . . . . . 169
Selector lever positions . . . . . . . . . . . . . . . . . . 168
servotronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 40
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Sitting position Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Front passenger . . . . . . . . . . . . . . . . . . . . . . 11
Sitting position, occupants . . . . . . . . . . . . . . . . 10
Sliding/tilting sunroof . . . . . . . . . . . . . . . . . . . 112
Snow chains . . . . . . . . . . . . . . . . . . . . . . . 240, 272 Soot accumulation in the diesel engine particu-
late filter *
Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Start-Stop Activating and deactivating . . . . . . . . . . . . 165
Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Starting petrol engines . . . . . . . . . . . . . . . . . . 160
Starting Petrol engines . . . . . . . . . . . . . . . . . . 161
Starting the engine . . . . . . . . . . . . . . . . . 160, 161 After the fuel tank has been run dry . . . . . 161
Steam jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Steering lock . . . . . . . . . . . . . . . . . . . . . . . . 159
Steering wheel audio controls Audio version . . . . . . . . . . . . . . . . . . . . . . . . 91
Audio + telephone version . . . . . . . . . . . . . . 91
Steering wheel height adjustment . . . . . . . . . 157
Storage compartment Front passenger side . . . . . . . . . . . . . . . . . 138
Other storage compartments . . . . . . . . . . 139
Storage compartments Front left hand side seat . . . . . . . . . . . . . . 138
Sun visor Sliding/tilting sunroof . . . . . . . . . . . . . . . . 113
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Switch Hazard warning lights . . . . . . . . . . . . . . . . 120
Light switch . . . . . . . . . . . . . . . . . . . . . . . . 115
Switches electric windows . . . . . . . . . . . . . . . . . . . . . 110 Switching off the engine . . . . . . . . . . . . . . . . . 162
T Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Emergency opening . . . . . . . . . . . . . . . . . . 109
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 88
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Tank Fuel level . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Reserve indicator . . . . . . . . . . . . . . . . . . . . . 58
Tank capacity . . . . . . . . . . . . . . . . . . . . . . . . 58
TCS see ASR . . . . . . . . . . . . . . . . . . . . . . . . . 89, 183
Technical modifications . . . . . . . . . . . . . . . . . . 208
The danger of not using the seat belt . . . . . . . . 22
Tightening torque of wheel bolts . . . . . . . . . . 272
Tilting sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 112
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Top Tether system . . . . . . . . . . . . . . . . . . . . . . . 51
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . 271
Towing bracket . . . . . . . . . . . . . . . . . . . . . . . . . 196
Towing bracket, fitting . . . . . . . . . . . . . . . . . . . 196
Towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Towing eyes . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Tow starting Comments . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Traction control system Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 89
297
Index