Engine Management And Emission Control System - Seat Toledo 2019 Owner's Manual

Engine management and
emission control system
Introduction
WARNING
Because of the high temperatures which
●
can occur in the exhaust purification sys-
tem (catalytic converter or diesel particu-
late filter), do not park the vehicle where
the exhaust can come into contact with
flammable materials under the car (e.g. on
grass or at the forest edge). Fire hazard!
Do not apply wax underneath the vehicle
●
around the area of the exhaust system: Fire
hazard!
Control lamps
 It lights up
Fault in the emission control system. (e.g. faulty
lambda sensor).
Reduce speed and drive carefully to the nearest spe-
cialised workshop to have the engine checked.
 Flashes
Combustion fault which could damage the catalytic
converter.
Reduce speed and drive carefully to the nearest spe-
cialised workshop to have the engine checked.
Start and driving
 It lights up
›››
Particulate filter blocked page 214.
 It lights up
Fault in the management of the petrol engine.
Have the engine checked by a specialised workshop
as soon as possible.
The warning lamp (Electronic Power Control)

lights up when the ignition is switched on while sys-
tem operation is being verified. It should go out once
the engine is started.
 It lights up
Diesel engine glow plug system.
The engine glow plug system has been activated.
The engine can be started straight away when the
lamp switches off.
 Flashes
Fault in the management of the diesel engine.
Have the engine checked by a specialised workshop
as soon as possible.
Note
While the control lamps are on
or there might be faults in the engine,

fuel consumption may go up and the en-
gine might lose power.
Catalytic converter
3 Applies to vehicles with petrol engine
To maintain the useful life of the catalytic
converter
Use only unleaded petrol with petrol en-
●
gines, as lead damages the catalytic con-
verter.
Do not let the fuel get too low in the tank.
●
For engine oil changes, do not replenish
●
with too much engine oil
Never tow the vehicle to start it, use jump
●
leads if necessary
If you notice misfiring, uneven running or loss
of power when the vehicle is moving, reduce
speed immediately and have the vehicle in-
spected at the nearest specialised workshop.
In general, the exhaust warning lamp will light
up when any of the described symptoms oc-
›››
cur page 213. If this happens, unburnt fuel
can enter the exhaust system and escape in-
to the environment. The catalytic converter
can also be damaged by overheating.
CAUTION
, ,
  
Never run the fuel tank completely dry be-
cause the irregularity of the fuel supply
may cause ignition problems. This allows
unburnt fuel to enter the exhaust system,
which could cause overheating and dam-
age the catalytic converter.
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page 247.
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 page 54.
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