2012 Seat Mii battery replacement

Table of Contents
Manual structure . . . . . . . . . . . . . . . . . . . . 5
Vehicle diagram . . . . . . . . . . . . . . . . . . . . . . 6
Exterior views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Side view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Vehicle interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Driver door overview . . . . . . . . . . . . . . . . . . . . . . . 9
Overview of the driver side . . . . . . . . . . . . . . . . . . 10
Overview of centre console . . . . . . . . . . . . . . . . . 12
Detail of the passenger seat . . . . . . . . . . . . . . . . 14
Symbols on the roof . . . . . . . . . . . . . . . . . . . . . . . 14
Instrument panel . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Control and warning lamps . . . . . . . . . . . . . . . . . 15
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SEAT information system . . . . . . . . . . . . . . . . . . . 22
Prior to a journey... . . . . . . . . . . . . . . . . . . 25
Before starting the engine . . . . . . . . . . . . . . . . . 25
Tips for driving . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Unlocking and locking . . . . . . . . . . . . . . . . . . . . . 28
Vehicle key set . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Central locking* and locking system . . . . . . . . . . 33
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Opening and closing the sliding/tilting electric
panoramic sunroof . . . . . . . . . . . . . . . . . . . . . . . . 44 Ensuring you are correctly and safely seated
48
Adjusting the seat position . . . . . . . . . . . . . . . . . 48
Seat functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Child seats (accessories) . . . . . . . . . . . . . . . . . . . 76
Lights and visibility . . . . . . . . . . . . . . . . . . . . . . . . 84
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Sun blind . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Window wash/wipe system . . . . . . . . . . . . . . . . . 91
Rear vision mirror . . . . . . . . . . . . . . . . . . . . . . . . . 95
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Loading luggage compartment . . . . . . . . . . . . . . 100
Roof carrier system . . . . . . . . . . . . . . . . . . . . . . . . 104
Trailer coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Practical equipment . . . . . . . . . . . . . . . . . . . . . . . 108
Storage compartments . . . . . . . . . . . . . . . . . . . . . 108
Drink holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Ashtray and Lighter . . . . . . . . . . . . . . . . . . . . . . . . 115
Electrical power socket* . . . . . . . . . . . . . . . . . . . . 117
While driving . . . . . . . . . . . . . . . . . . . . . . . . . 119
Starting, changing gears, parking . . . . . . . . . . 119
Stopping and starting the engine . . . . . . . . . . . . 119
Changing gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Braking, stopping and parking . . . . . . . . . . . . . . 134
Ecological driving . . . . . . . . . . . . . . . . . . . . . . . . . 144
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Driver assistance systems . . . . . . . . . . . . . . . . . . 149
Parking distance warning system* . . . . . . . . . . . 149
Cruise control* (Cruise control system - CCS) . . . 152 Safety Assist* (City Safety Assist function) . . . . . 155
Hill hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Hill-start aid* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Air control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Heating, Ventilation and Air conditioning system . .164
At the filling station . . . . . . . . . . . . . . . . . . . . . . . . 171
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Care, cleaning and maintenance . 180
In the engine compartment . . . . . . . . . . . . . . . . 180
Working in the engine compartment . . . . . . . . . . 180
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Vehicle battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Vehicle care and maintenance . . . . . . . . . . . . . . 197
Care and cleaning the vehicle exterior . . . . . . . . 197
Caring for and cleaning the vehicle interior . . . . 205
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Accessories, replacements, repairs and
modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Notes for the user . . . . . . . . . . . . . . . . . . . . . . . . . 233
Engine management and exhaust gas
purification system . . . . . . . . . . . . . . . . . . . . . . . . 236
If and when . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Practical information . . . . . . . . . . . . . . . . . . . . . . 238
Frequently asked questions . . . . . . . . . . . . . . . . . 238
In case of emergency . . . . . . . . . . . . . . . . . . . . . . 240
Emergency locking and unlocking . . . . . . . . . . . . 243
Vehicle tool kit* . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
3
Table of Contents

117
Practical equipment
Electrical power socket* Introduction
Electrical equipment can be connected to the socket in the vehicle.
Connected equipment must be in perfect condition and show no signs of
faults.
Additional information and warnings:
● Cigarette lighter ⇒ page 115
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
Improper use of the socket or electrical devices could lead to a fire and
cause serious injuries.
● Never leave children unsupervised in the vehicle. The socket and
equipment connected to it can be used when the ignition is switched on.
● Should a connected electrical device overheat, switch it off and un-
plug it immediately.
CAUTION
● To avoid damage to the vehicle's electrical system, never connect equip-
ment that generates electrical current, such as solar panels or battery charg-
ers, to the 12 Volt sockets in order to charge the vehicle's battery.
● Only use accessories with approved electromagnetic compatibility ac-
cording to current regulations. ●
To avoid damage due to voltage variations, switch off all appliances con-
nected to the 12 V socket before switching the ignition on or off and before
starting the engine.
● Never connect an appliance to the 12 Volt socket that consumes more
than the power indicated in watts. Exceeding the maximum power absorp-
tion could damage the vehicle's electrical system.
For the sake of the environment
Do not leave the engine running when the vehicle is at a standstill.
Note
Using electrical appliances with the engine stopped and the ignition switch-
ed on will drain the battery.
Note
Unshielded equipment can cause interference on the radio system equip-
ment and the vehicle's electrical system.
Note
If electrical equipment is used near an aerial, you may observe interference
in the reception of AM stations. 
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data

160Driver assistance systems
Malfunction in the laser sensor
If the laser sensor operation is impaired, for example due to heavy rain,
spray, snow or dirt, the City Safety Assist system function is temporarily
switched off. On the instrument panel display the control lamp  flashes.
When the fault in the laser sensor has been rectified, the City Safety Assist
system function automatically becomes available. The control lamp 
switches off.
The following conditions could prevent the City Safety Assist system from
functioning:
● Tight bends.
● Accelerator pressed all the way down to the floor.
● If the City Safety Assist system is switched off or there is a fault
⇒ page 156.
● If the laser sensor is dirty, covered or overheated ⇒ page 157.
● In the event of snow, heavy rain or dense fog.
● If there are vehicles in front.
● Vehicles changing lanes.
● Vehicles moving in the opposite direction in the same lane.
● Very dirty vehicles with a low degree of reflection.
● Presence of thick dust. 
Hill hold
Introduction
Additional information and warnings:
● SEAT information system ⇒ page 22
● Braking, stopping and parking ⇒ page 134 ●
Vehicle battery ⇒ page 193
● Wheels and tyres ⇒ page 210
● Accessories, parts replacement, repairs and modifications ⇒ page 222
● Hill hold ⇒ page 273
WARNING
The smart technology included in the hill hold cannot change the laws of
physics. Do not let the extra convenience afforded by the hill hold tempt
you into taking any risks when driving.
● Any accidental movement of the vehicle could result in serious injury.
● The hill hold is not a replacement for driver awareness.
● Adjust your speed and driving style to visibility, weather, road and
traffic conditions.
● The hill hold cannot always keep the vehicle at a standstill on a slope
or brake sufficiently when travelling downhill (e.g. on slippery or frozen
surfaces).

Warning lamps
lights upPossible causeSolution
The Start-Stop system is ena-
bled.

The Start-Stop system is ena-
bled but the engine cannot be
automatically stopped.Contact a Specialised
workshop.

The Start-Stop system cannot
start the engine.Start the engine by hand
using the vehicle's key
⇒ page 120.
There is a fault in the alternator.⇒ page 193 

180In the engine compartment
Care, cleaning and maintenance
In the engine compartment
Working in the engine compartmentIntroduction
Before working in the engine compartment, make sure that the vehicle is
parked on horizontal and firm ground.
The engine compartment of the vehicle is a hazardous area. Never work on
the engine or in the engine compartment if you are not familiar with the op-
erations to be carried out, the applicable safety standards and especially if
you do not have the instruments, liquids and tools necessary ⇒ 
! In such
a case, have any work carried out by a Specialised workshop. Negligent
work can cause serious injury.
Additional information and warnings:
● Exterior detail ⇒ page 6
● Windscreen wash system ⇒ page 91
● Start and stop the engine ⇒ page 119
● Brake fluid ⇒ page 134
● Checks when filling up ⇒ page 171
● Engine oil ⇒ page 185
● Engine coolant ⇒ page 189
● Vehicle battery ⇒ page 193
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
If the vehicle moves unexpectedly, this could cause serious injury.
● Never work underneath the vehicle if it is not secured against moving.
If you must work underneath the vehicle with the wheels in contact with
the ground then it should be parked on flat ground, the wheels should be
prevented from moving and the key must be removed from the ignition.
● If you have to work underneath the vehicle, you must use suitable
stands additionally to support the vehicle, there is a risk of accident!.
The jack is not intended for this kind of work and its failure could lead to
severe injuries.
● Disconnect the Start-Stop system.
WARNING
The engine compartment is a dangerous area capable of causing serious
injury.
● For all type of work, always take the utmost precautions, work care-
fully and note the general safety standards in force. Never take personal
risks.
● Never work on the engine or in the engine compartment if you are not
familiar with the necessary operations. If you are not sure about proce-
dures then visit a Specialised workshop to carry out the necessary work.
Incorrect work can cause serious injuries. 

193
In the engine compartment
Vehicle battery
Introduction
The battery is a component of the vehicle's electrical system.
Never work on the electrical system without fully understanding the opera-
tions required, the applicable safety standards and without the correct tools
⇒ 
! In such a case, have any work carried out by a Specialised workshop.
SEAT recommends visiting a Technical Service. Negligent work can cause
serious injury.
Location of the vehicle battery
The battery is located in the engine compartment.
Explanation of the warning indications on the vehicle's battery
SymbolMeaning
Wear eye protection!
Battery acid is very corrosive and caustic. Always wear
protective gloves and eye protection!
Fires, sparks, open flames and smoking are prohibited.
A highly explosive mixture of gases is released when
the battery is under charge.
Keep children away from acid and batteries!
Additional information and warnings:
● ⇒ Booklet Maintenance Programme
● Working in the engine compartment ⇒ page 180
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
Working on the vehicle battery and the electrical system can cause corro-
sion, fire and electric shocks. Always read and take into account the fol-
lowing warnings and safety standards before carrying out any work:
● Before working on the battery, switch off the engine, the ignition and
all electrical devices then disconnect the negative connection on the bat-
tery.
● Keep children away from acid and the battery itself!
● Wear eye protection.
● Battery acid is very corrosive and caustic. It can burn skin and cause
blindness. When handling the battery, protect yourself from splashes of
acids, above all your hands, arms and face.
● Do not smoke and never work close to places exposed to flames or
sparks.
● Avoid sparks and electrostatic discharges when working with cables
and electrical devices.
● Never short the battery terminals.
● Never use a damaged battery. It can explode. Replace a damaged bat-
tery immediately.
● Replaced damaged or frozen batteries as soon as possible. A flat bat-
tery can also freeze at temperatures close to 0 °C (+32 °F).
CAUTION
● Never disconnect the battery if the ignition is switched on or if the en-
gine is running. This could damage the electrical system or electronic com-
ponents.
● Do not expose the battery to direct sunlight over a long period of time,
as the intense ultraviolet radiation can damage the battery housing.
● If the vehicle is left standing for long periods, protect the battery from
extreme cold temperature so that it does not “freeze up” and become dam-
aged. 
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data

222Vehicle care and maintenance
Accessories, replacements, repairs and
modifications
Introduction
Additional information and warnings:
● Seat belts ⇒ page 57
● Airbag system ⇒ page 67
● Roof carrier ⇒ page 104
● Ashtray and cigarette lighter ⇒ page 115
● Power socket ⇒ page 117
● Braking, stopping and parking ⇒ page 134
● Parking distance warning system ⇒ page 149
● Cruise control system (CCS) ⇒ page 152
● Working in the engine compartment ⇒ page 180
● Engine oil ⇒ page 185
● Engine coolant ⇒ page 189
● Vehicle battery ⇒ page 193
● Caring for and cleaning the vehicle exterior ⇒ page 197
● Care and cleaning of the vehicle interior ⇒ page 205
● Notes for the user ⇒ page 233
● ⇒ Booklet Radio system
● Instruction Manual for the Portable Navigation System (supplied by
SEAT) in the equipment.
WARNING
The use of unsuitable spare parts and accessories, or incorrectly per-
formed modifications or repairs may result in damage to the vehicle, acci-
dents and serious injury.
● SEAT strongly recommends you to only use SEAT approved accesso-
ries and SEAT ®
original spare parts. These parts and accessories have
been specially tested by SEAT for suitability, reliability and safety.
● Have any repairs or modifications carried out at a Specialised work-
shop. Specialised workshops have the necessary tools, diagnostics
equipment, repair information and qualified personnel.
● Only mount parts with the same specifications as the parts fitted at
factory.
● Never mount, fasten or fit objects such as drink holders or telephone
cradles over the covers of the airbag modules or within their deployment
zones.
● Only use wheels and tyre combinations which have been approved by
SEAT for your vehicle type.
