2012 Seat Mii catalytic converter

237
Vehicle 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 273.
If you should notice misfiring, uneven running or loss of power when the ve-
hicle is moving, reduce speed immediately. Have the vehicle inspected by a
Specialised workshop. If this happens, unburnt fuel can enter the exhaust
gas system and escape into the atmosphere. The catalytic converter can al-
so be damaged 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. 
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data

276Practical information
Towing and tow starting
Introduction
When towing or tow starting, respect the legal requirements.
For technical reasons, it is not possible to tow a vehicle if the battery is flat.
Additional information and warnings:
● Exterior detail ⇒ page 6
● Electronic power control and exhaust gases purification system
⇒  page 236
WARNING
A vehicle with a flat battery should never be towed.
● Never remove the key from the ignition lock. Otherwise, the steering
wheel lock could suddenly lock. Then the vehicle will be uncontrollable.
You may lose control of the vehicle and there is a risk of serious accident.
WARNING
When towing the vehicle, the handling and braking efficiency change
considerably. Please observe the following instructions to minimise the
risk of serious accidents and injury:
● As the driver of the vehicle being towed:
– The brake must be depressed must harder as the brake servo does
not operate. Always remain aware to avoid collision with the towing
vehicle.
– More strength is required at the steering wheel as the power steer-
ing does not operate when the engine is switched off.
● As the driver of the towing vehicle:
– Accelerate gently and carefully.
– Avoid sudden braking and manoeuvres.
– Brake well in advance than usual and brake gently.
CAUTION
● Carefully fit and remove the towing ring and its cover to avoid damage to
the vehicle (for example, paintwork).
● When towing, fuel could enter the catalytic converter and cause dam-
age!
Note
Fitting a towline anchorage to the rear bumper is not possible. The vehicle is
not suitable for towing other vehicles. 

277
Practical information
Instructions for tow starting
In general, the vehicle should not be started by towing. Jump-starting is
much more preferable ⇒  page 273.
For technical reasons, the following vehicles can not be tow started:
● Vehicles with an automatic gearbox.
● If the vehicle battery is flat, it is possible that the engine control unit
does not operate correctly.
However, if your vehicle must absolutely be tow-started (manual gearbox):
● Engage the 2nd or 3rd gear.
● Keep the clutch pressed down.
● Switch on the ignition and the hazard warning lights.
● Release the clutch when both vehicles are moving.
● As soon as the engine starts, press the clutch and move the gear lever
into neutral. This helps to prevent a collision with the towing vehicle.
CAUTION
When tow-starting, fuel could enter the catalytic converter and damage it. 
Notes on towing
Tow rope or tow bar
When towing, the tow bar is the safest and vehicle friendly way. You should
only use a tow rope if you do not have a tow bar.
A tow rope should be slightly elastic to avoid damage to both vehicles. It is
advisable to use a tow rope made of synthetic fibre or similarly elastic mate-
rial. Only secure the tow rope or tow bar to the tow ring or specially designed
fitting.
Towing vehicles with an automatic gearbox
Note the following for a towed vehicle:
●
Make sure the gear selector lever is in the N position.
● Do not drive faster than 50 km/h (30 mph) when towing a vehicle.
● Do not tow further than 50 km (30 miles).
● If a breakdown truck is used, the vehicle must be towed with the front
wheels raised.
Situations in which the vehicle should not be towed
In the following cases, the vehicle should not be towed but transported on a
trailer or special vehicle:
● If the vehicle gearbox does not contain lubricant due to a fault.
● If the battery is flat as the steering cannot be unlocked, as a result, the
electronic steering lock and electronic parking brake cannot be disengaged.
● If the vehicle to be towed has an automatic gearbox and the distance to
be covered is greater than 50 km (30 miles).
Note
The vehicle can only be towed if the steering lock electronic gearbox lock is
deactivated. If the vehicle has no power supply or there is an electric system
fault, the engine must be started using jump leads to deactivate the steer-
ing column electronic gearbox lock. 
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data

malfunction . . . . . . . . . . . . . . . . . . . . . . . . 132
starting on a slope . . . . . . . . . . . . . . . . . . . 131
stopping on a slope . . . . . . . . . . . . . . . . . . 131
Axle loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
B
BAS see Brake assist systems . . . . . . . . . . . . . . 140
Battery Change in the vehicle key . . . . . . . . . . . . . . 31
discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Discharging . . . . . . . . . . . . . . . . . . . . . . . . 241
See Vehicle battery . . . . . . . . . . . . . . . . . . 193
Battery acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Before consulting a specialised workshop . . . 238
Belt tension device . . . . . . . . . . . . . . . . . . . . . . . 65 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Service and disposal . . . . . . . . . . . . . . . . . . 65
Belt tension limiter . . . . . . . . . . . . . . . . . . . . . . . 65
Bench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Bonnet Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Bottle capacity Windscreen washer water bottle . . . . . . . . . 94
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Brake servo . . . . . . . . . . . . . . . . . . . . . . . . . 138
Brake assist system (BAS) . . . . . . . . . . . . . . . . 140
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Specification . . . . . . . . . . . . . . . . . . . . . . . . 141 Brakes
Assisted braking systems . . . . . . . . . . . . . 139
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 141
Brake fluid level . . . . . . . . . . . . . . . . . . . . . 142
Brake pads . . . . . . . . . . . . . . . . . . . . . . . . . 137
Changing the brake fluid . . . . . . . . . . . . . . 142
Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 135
Emergency brake indicator in case of sud-den braking . . . . . . . . . . . . . . . . . . . . . . . 241
Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . 136
Running-in brake pads . . . . . . . . . . . . . . . . 137
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 135
Brake servo . . . . . . . . . . . . . . . . . . . . . . . . 138, 139
Brake system Malfunction . . . . . . . . . . . . . . . . . . . . . . . . 138
Brake systems . . . . . . . . . . . . . . . . . . . . . . . . . 139
Breakdown Securing the vehicle . . . . . . . . . . . . . . . . . 240
Bulb fault See changing bulbs . . . . . . . . . . . . . . . . . . 264
C
Capacities Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Care See "Care of your vehicle" . . . . . . . . . . . . . 197
Vehicle interior . . . . . . . . . . . . . . . . . . . . . . 205
Care of your vehicle Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Caring for paintwork . . . . . . . . . . . . . . . . . . . . . 202
Carrier system . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 237
Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 236
Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . 236
CCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
central locking Deadlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Central locking button . . . . . . . . . . . . . . . . . 36
locking and unlocking from the exterior . . . 34
locking and unlocking from the inside . . . . 36
Central locking system After airbag deployment . . . . . . . . . . . . . . . 33
Description . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Opening doors individually . . . . . . . . . . . . . 33
Centre console . . . . . . . . . . . . . . . . . . . . . . . 12, 13 Bottom part . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Top part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Changing Windscreen wiper blades . . . . . . . . . . . . . 201
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . 250 Changing a wheel . . . . . . . . . . . . . . . . . . . 255
Preparations . . . . . . . . . . . . . . . . . . . . . . . . 251
Raising the vehicle . . . . . . . . . . . . . . . . . . . 253
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . 251
Changing bulbs . . . . . . . . . . . . . . . . . . . . . . . . 264 Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Front bumper . . . . . . . . . . . . . . . . . . . . . . . 267
Initial operations . . . . . . . . . . . . . . . . . . . . 265
in the headlights . . . . . . . . . . . . . . . . . . . . 266
Number plate light . . . . . . . . . . . . . . . . . . . 270
Rear lights . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Sea changing bulbs . . . . . . . . . . . . . . . . . . 264
292 Index

Control lampAirbag system . . . . . . . . . . . . . . . . . . . . . . . . 69
Brake pad wear warning . . . . . . . . . . . . . . 135
Brake system . . . . . . . . . . . . . . . . . . . . . . . 135
Catalytic converter . . . . . . . . . . . . . . . . . . . 236
City Safety Assist function . . . . . . . . . . . . . 156
Cruise control system (CCS) . . . . . . . . . . . . 152
Emission control system . . . . . . . . . . . . . . 236
Engine coolant . . . . . . . . . . . . . . . . . . . . . . 189
Engine management . . . . . . . . . . . . . . . . . 236
Engine oil sensor . . . . . . . . . . . . . . . . . . . . 185
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Fuel level . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Hill hold . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Steering column lock . . . . . . . . . . . . . . . . . 147
Controlling function Electric exterior mirrors . . . . . . . . . . . . . . . . 96
Control units . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Reprogramming . . . . . . . . . . . . . . . . . . . . . 227
Convenience functions Reprogramming . . . . . . . . . . . . . . . . . . . . . 227
Coolant See engine coolant . . . . . . . . . . . . . . . . . . 189
Crossing a river Salt water . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Cruise control system . . . . . . . . . . . . . . . . . . . . 152
Cruise control system (CCS) Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 152
Operations . . . . . . . . . . . . . . . . . . . . . . . . . 153 D
Damaged tyres . . . . . . . . . . . . . . . . . . . . . . . . . 216
Dangers of not using the seat belt . . . . . . . . . . 60
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Airbag system . . . . . . . . . . . . . . . . . . . . 67, 208
Data link connector (DLC) . . . . . . . . . . . . . . . . 227
Data registry . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Data storage during the journey . . . . . . . . . . . 226
Data stored by the control units . . . . . . . . . . . 226
Daytime driving light . . . . . . . . . . . . . . . . . . . . . 87
De-icing the door lock cylinder . . . . . . . . . . . . 203
De-icing the locks . . . . . . . . . . . . . . . . . . . . . . . 203
Deadlock Deadlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
SAFELOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Deadlock (immobilizer) . . . . . . . . . . . . . . . . . . 123
Detail passenger seat . . . . . . . . . . . . . . . . . . . . . . . 14
Diagnostics connection . . . . . . . . . . . . . . . . . . 227
Differential lock See "Brake assist systems" . . . . . . . . . . . . 140
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Dipped beam headlights . . . . . . . . . . . . . . . . . . 86
Dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Instrument panel . . . . . . . . . . . . . . . . . . . . . 19
Disposal Airbag system . . . . . . . . . . . . . . . . . . . . . . . 235
Belt tension device . . . . . . . . . . . . . . . . . . . . 65
End-of-life vehicle . . . . . . . . . . . . . . . . . . . 235 Door handle
exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Door release lever interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Childproof locks . . . . . . . . . . . . . . . . . . . . . . 38
Emergency locking and unlocking . . . . . . 243
Drink holders . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Centre console . . . . . . . . . . . . . . . . . . . . . . 114
Drinks bottles see Drink holders . . . . . . . . . . . . . . . . . . . . 113
Driver door Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Driver position . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Driving Check list . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Data storage . . . . . . . . . . . . . . . . . . . . . . . . 226
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . 26
Driving through water . . . . . . . . . . . . . . . . . 27
Driving with an automatic gearbox . . . . . . 131
Ecological . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Economic . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . 172
Fuel level to low . . . . . . . . . . . . . . . . . . . . . 173
Journey preparations . . . . . . . . . . . . . . . . . . 25
Parking downhill . . . . . . . . . . . . . . . . . . . . 137
Parking uphill . . . . . . . . . . . . . . . . . . . . . . . 137
Protection of the undercarriage . . . . . . . . . . 25
starting on a slope . . . . . . . . . . . . . . . . . . . 131
stopping on a slope . . . . . . . . . . . . . . . . . . 131
Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
294 Index

Initial operationsChanging bulbs . . . . . . . . . . . . . . . . . . . . . 265
InSP Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Instrument panel . . . . . . . . . . . . . . . . . . . . . . . . 15 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Display control functions . . . . . . . . . . . . . . . 22
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . 18
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service interval display . . . . . . . . . . . . . . . . 21
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 15
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . 15
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
In the event of an emergency Fire extinguishers . . . . . . . . . . . . . . . . . . . . 242
First aid kit . . . . . . . . . . . . . . . . . . . . . . . . . 242
Warning triangle . . . . . . . . . . . . . . . . . . . . . 242
ISOFIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 see Child seat . . . . . . . . . . . . . . . . . . . . . . . . 76
J
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Raising the vehicle . . . . . . . . . . . . . . . . . . . 253
Journey preparations . . . . . . . . . . . . . . . . . . . . . 25
K
Kerb weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
key see vehicle key . . . . . . . . . . . . . . . . . . . . . . . 30 Key
see vehicle key . . . . . . . . . . . . . . . . . . . . . . . 29
Key switch Deactivating the front passenger airbag . . 73
Kickdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
L Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Laser sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
LATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 see Child seat . . . . . . . . . . . . . . . . . . . . . . . . 76
Lifting platform . . . . . . . . . . . . . . . . . . . . . . . . . 231
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Audible warnings . . . . . . . . . . . . . . . . . . . . . 86
Controls lighting . . . . . . . . . . . . . . . . . . . . . . 88
Daytime driving light . . . . . . . . . . . . . . . . . . 87
Dipped beam headlights . . . . . . . . . . . . . . . 86
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Headlight range control . . . . . . . . . . . . . . . . 88
Instrument panel lighting . . . . . . . . . . . . . . 88
Instruments lighting . . . . . . . . . . . . . . . . . . 88
Light switch . . . . . . . . . . . . . . . . . . . . . . . . . 86
Main beam lever . . . . . . . . . . . . . . . . . . . . . . 85
Parking light remains on both sides . . . . . . 87
Reading light . . . . . . . . . . . . . . . . . . . . . . . . 88
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
turning off . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
turning on . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . 85
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . 84 Load
Driving with the rear lid open . . . . . . . . . . . 98
Transporting a load . . . . . . . . . . . . . . . . . . . 98
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 General tips . . . . . . . . . . . . . . . . . . . . . . . . . 97
Loading luggage compartment . . . . . . . . . 100
Roof carrier system . . . . . . . . . . . . . . . . . . . 105
Locking from the exterior . . . . . . . . . . . . . . . . . . . . . . 34
from the inside . . . . . . . . . . . . . . . . . . . . . . . 36
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Luggage compartment Rear shelf . . . . . . . . . . . . . . . . . . . . . . . . . . 102
M
Main beam headlights . . . . . . . . . . . . . . . . . . . . 86
Main beam lever . . . . . . . . . . . . . . . . . . . . . . . . . 85
Main panel Turn signal and main beam lever . . . . . . . . 85
Malfunction automatic gearbox . . . . . . . . . . . . . . . . . . . 132
Catalytic converter . . . . . . . . . . . . . . . . . . . 236
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . 124 see also Changing gear . . . . . . . . . . . . . . . 124
Manufacturer identification plate . . . . . . . . . . 281
mechanical locking locking and unlocking from the exterior . . . 34
locking and unlocking from the inside . . . . 36
297
Index