Driving and the environment
194change down into a lower gear or range (depending on the type of trans-
mission). 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,
vapour 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 212, “Technical modifications”.•If a brake circuit fails, the braking distance will be increased consider-
ably. Contact a specialised workshop immediately and avoid unnecessary
journeys.
Exhaust gas purification systemCatalytic 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 226, “Topping up engine oil E”.
– Never tow the vehicle to start it, use jump leads if necessary ⇒page 267.
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 envi-
ronment. 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
system. 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
WARNING (continued)
Leon_EN.book Seite 194 Mittwoch, 1. September 2010 6:16 18
Index303
Deactivating front passenger airbag . . . . . . 45
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . 37
Seat belt tensioners . . . . . . . . . . . . . . . . . . . 29
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Using child seats . . . . . . . . . . . . . . . . . . . . . . 47
Using seat belts . . . . . . . . . . . . . . . . . . . . . . . 23
Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Seat adjustment . . . . . . . . . . . . . . . . . . . 135, 138
Seat belt cleaning . . . . . . . . . . . . . . . . . . . . . . . 211
Seat belt position Pregnant women . . . . . . . . . . . . . . . . . . . . . . 26
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Seat belt protection . . . . . . . . . . . . . . . . . . . . . . . 23
Seat belt release . . . . . . . . . . . . . . . . . . . . . . . . . 27
Seat belt tensioner Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 31
Seat belt tensioners . . . . . . . . . . . . . . . . . . . . . . 28
Seat belt warning lamp . . . . . . . . . . . . . . . . . . . . 19
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Incorrectly fastened . . . . . . . . . . . . . . . . . . . . 28
Not worn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 19
Seat heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Selective opening* . . . . . . . . . . . . . . . . . . . . . . 100
Selector lever locking . . . . . . . . . . . . . . . . . . . . 172
Selector lever positions . . . . . . . . . . . . . . . . . . . 171
Servotronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Sitting position Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Front passenger . . . . . . . . . . . . . . . . . . . . . . . 11
Sitting position, occupants . . . . . . . . . . . . . . . . . 10
Sliding/tilting sunroof . . . . . . . . . . . . . . . . . . . . 114
Snow chains . . . . . . . . . . . . . . . . . . . . . . . 244, 276
Soot accumulation in the diesel engine particulate filter
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 84
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Starting Petrol engines . . . . . . . . . . . . . . . . . . . 164
Starting petrol engines . . . . . . . . . . . . . . . . . . . 163
Starting the engine . . . . . . . . . . . . . . . . . 163, 164 After the fuel tank has been run dry . . . . . . 164
Start-Stop Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Switching on and off . . . . . . . . . . . . . . . . . . 168
Steam jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Steering lock . . . . . . . . . . . . . . . . . . . . . . . . 162
Steering wheel audio controls Audio + telephone version . . . . . . . . . . . . . . 91
Audio version . . . . . . . . . . . . . . . . . . . . . . . . . 91
Steering wheel height adjustment . . . . . . . . . . 160 Storage area
Other storage areas . . . . . . . . . . . . . . . . . . . 142
Storage compartment Front passenger side . . . . . . . . . . . . . . . . . . 141
Storage compartments Front left hand side seat . . . . . . . . . . . . . . . 141
Sun visor Sliding/tilting sunroof . . . . . . . . . . . . . . . . . 115
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Switch Hazard warning lights . . . . . . . . . . . . . . . . . 122
Light switch . . . . . . . . . . . . . . . . . . . . . . . . . 117
Switches Electric windows . . . . . . . . . . . . . . . . . . . . . 112
Switching off the engine . . . . . . . . . . . . . . . . . . 165
TTail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Emergency opening . . . . . . . . . . . . . . . . . . . 111
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 88
Tank Fuel level . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Reserve indicator . . . . . . . . . . . . . . . . . . . . . . 58
Tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . 58
TCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
TCS (Traction control system) Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 89
Technical modifications . . . . . . . . . . . . . . . . . . 212
The danger of not using the seat belt . . . . . . . . 22
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