2013 Seat Mii maintenance

237
Vehicle care and maintenance
Engine management and exhaust gas
purification system Introduction
Additional information and warnings:
● Changing gear ⇒  page 124
● Refuelling ⇒  page 171
● Fuel ⇒ page 177
● Engine oil ⇒ page 185
● Vehicle battery ⇒ page 193
● Information stored in the control units ⇒ page 222
● Tow starting and towing away ⇒ page 278
WARNING
The components of the exhaust system reach very high temperatures.
This could cause a fire.
● Always park your vehicle so that no part of the exhaust system can
come in contact with flammable materials (such as dried grass).
● Never apply additional underseal or anti-corrosion coatings to the ex-
haust pipes, catalytic converter or the heat shields on the exhaust sys-
tem.
 Control lamps
lights
upPossible causeSolution
Fault in engine management
(Electronic Power Control).Take the vehicle to a specialised
workshop as soon as possible
and have the engine checked.
Fault in catalytic converter.
You should reduce speed accord-
ingly. Drive carefully until you
reach the next specialised work-
shop. Have the engine checked
there.
flashesPossible causeSolution

Combustion fault which could
damage the catalytic convert-
er.You should reduce speed accord-
ingly. Drive carefully until you
reach the next specialised work-
shop. Have the engine checked
there.
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
CAUTION
Always pay attention to any lit control lamps and to the corresponding de-
scriptions and instructions to avoid damage to the vehicle.
Note
While the control lamps  or  maintain lit up, the engine will present
faults, a higher consumption of fuel and a loss of engine power. 
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical specifications

238Vehicle care and maintenance
Catalytic converter
The catalytic converter permits the subsequent treatment of the exhaust
gases thus reducing contaminating gas emissions. To ensure a longer work-
ing life for the exhaust system and catalytic converter in a petrol engine:
●Always use unleaded petrol.
● Never run the fuel tank completely dry.
● Do not top up with too much engine oil ⇒ page 185.
● Do not tow-start the vehicle; use the starter cables ⇒ page 275.
If you should notice misfiring, uneven running or loss of power when the car
is moving, reduce speed immediately. Have the car inspected by a special-
ised workshop. If this happens, unburnt fuel can enter the exhaust system
and escape into the atmosphere. The catalytic converter can also be dam-
aged by overheating.
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. 

283
Description of specifications
Vehicle identification data
Fig. 166 Vehicle data la-
bel:
Fig. 167 Vehicle identifi-
cation number
Vehicle identification number
The vehicle identification number (chassis number) can be read from out-
side the vehicle through a viewer in the windscreen ⇒ Fig. 167. This viewer
is located in the lower part of the windscreen. The vehicle identification number (chassis number) is also stamped on the right water drain channel.
The water drain channel is located between the suspension tower and the
wing. Open the bonnet to read the vehicle identification number
.
Vehicle data plate
The vehicle data label ⇒ Fig. 166 is at the front of the spare wheel well. It
contains the following data:
Vehicle identification number (chassis number)
Vehicle type, engine power, gearbox type
Engine and gearbox code, paint number, interior equipment.
Optional extras, PR numbers
These data are also provided in the Maintenance Programme. 
Specific vehicle weight information
The instructions in the official vehicle documents take precedence. All the
technical data provided in this documentation is applicable to the basic
model. The vehicle data label in the Maintenance Programme or the vehicle
documentation shows which engine is installed in your vehicle.
The figures may be different depending whether additional equipment is fit-
ted, for different models and for special vehicles.
Kerb weight values shown in the following table apple for a vehicle with
driver (75 kg), liquids including a fuel tank 90% full, in addition to tools and
a spare wheel ⇒ 
. The kerb weight indicated increases with optional
equipment and retrofitting of accessories, while proportionally reducing car-
rying capacity.
The load is equivalent to the following weights: 
1
234
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical specifications