2017 Seat Mii technical data

Care and maintenance
waste. Observe information provided by the
manuf
act
urer. Washing the vehicle
The longer substances such as insects, bird
drop
pin

gs, resinous tree sap, road dirt, in-
dustrial deposits, tar, soot or road salt and
other aggressive materials remain on the ve-
hicle, the more damage they do to the paint-
work. High temperatures (for instance due to
strong sunlight) further intensify the corro-
sive effect. The vehicle undercarriage should
also be thoroughly washed at regular inter-
vals.
Automatic car washes
Always observe the instructions provided at
the automatic car wash. The standard pre-
cautionary measures prior to entering the car
wash should be taken to avoid damage to
the vehicle (close all windows and the roof,
fold in exterior mirrors). If the vehicle is fitted
with additional components (spoiler, roof-
rack, aerial, etc.), check with the car wash su-
pervisor whether these can enter the car
wash ››› .
The v
ehic

le paintwork is so durable that the
vehicle can normally be washed without
problems in an automatic car wash tunnel.
However, wear and damage to the paintwork
will depend on the type of car wash used. SEAT recommends the use of car washes
without bru

shes.
To remove traces of wax on windows and to
prevent wiper blades from scratching, please
observe the following ››› page 172, Cleaning
windows and exterior mirrors .
Washing the car by hand
When washing the car by hand, use plenty of
water to soften the dirt first, and rinse off as
well as possible.
Then clean the vehicle with a soft sponge,
glove or brush using only slight pressure.
Start at the roof and work downwards. Spe-
cial car shampoo should only be used for
very persistent dirt.
Rinse the sponge or glove thoroughly and of-
ten.
Wheels, sills and similar should be cleaned
last. Use a second sponge for this. WARNING
Sharp components on the vehicle may cause
injury .
● Pr

otect arms and hands from sharp edges
when cle
aning the vehicle undercarriage or
the interior of the wheel hubs. WARNING
After the vehicle has been washed, the brak-
ing eff ect

will be reduced (and the braking
distance increased) due to moisture (and ice
in winter) on the brakes.
● “Dry the brakes and remove ice” by braking
caref
ully. Ensure that you are not endanger-
ing other road-users or breaking traffic regu-
lations in the process. CAUTION
● The wat er t

emperature should not exceed
+60°C (+140°F).
● To avoid damage to the paintwork, do not
wash the
vehicle in full sun.
● Do not use rough sponges or similar which
coul
d damage the surface to clean away the
traces of insects.
● Never wipe the headlights with a dry cloth
or spong
e, always moisten first. It is best to
use soapy water.
● Washing the vehicle in low temperatures:
When washin
g the vehicle with a hose, do
not direct water into the lock cylinders or the
gaps around the doors or roof. Locks and
seals could freeze! CAUTION
To avoid any risk of damage to the vehicle,
pl e

ase check the following points before us-
ing an automatic car wash: » 171
Technical data
Advice
Operation
Emergencies
Safety

Care and maintenance
with wax deposits which could smear the
w indo
w
s.
Use window cleaner or a silicone remover to
clean rubber, oil, grease and silicone depos-
its off ››› .
R emo
v

ing wax residue
Automatic car washes and certain car care
products may leave wax deposits on the win-
dows. These deposits can only be removed
with a special product or cleaning cloths. If
wax deposits are left on the windscreen and
the rear window, the blades can scratch the
glass. SEAT recommends you wipe the wax
deposits off the windscreen and the rear win-
dow with a soft cloth each time after you
have washed the vehicle.
A window cleaning detergent which helps to
dissolve the wax may be added to the wind-
screen washer fluid to prevent the wiper
blades from scratching the windscreen.
Please ensure you add the cleaning product
in the correct proportions. Products for re-
moving grease do not eliminate the wax de-
posits ››› .
S pec
i

al cleaning products or window cloths
are available at any technical service. To re-
move wax deposits, SEAT recommends the
following products:
● For the hottest time of the year: the window
cle
aner for summer use G 052 184 A1. Pro- portion 1:100 (1 part detergent, 100 parts
water) in the w

indscreen washer reservoir.
● All year round: the window clean-
er G 052 164 A2; proportion 1:2 in w
ind-
screen washer reservoir (1 part concentrate,
2 parts water) in winter, up to -18°C (-0.4°F),
or 1:4, during the rest of the year.
● Window cloths G 052 522 A1 for all win-
dows
and exterior mirrors.
Removing snow
Use a small brush to remove snow from the
windows and exterior mirrors.
Removing ice
If possible, use a de-icing spray to remove
ice. If you use an ice scraper, push it in one
direction only without swinging it. If you pull
the scraper backwards, the dirt may scratch
the window. WARNING
Dirty or misted windows reduce visibility in
al l

directions and increase the risk of acci-
dent and serious injury.
● Do not drive unless you have good visibility
through al
l windows!
● Remove ice and snow from the windows
and demist
inside and out. CAUTION
● Never mi x

our cleaning products with other
products not recommended by SEAT in the
windscreen washer reservoir. This could lead
to flocculation and may block the windscreen
washer jets.
● Do not use hot or warm water to remove ice
or snow fr
om the windows and exterior mir-
rors. The glass could crack!
● The heating element for the rear window is
located on the inner s
ide of the window. Do
not stick adhesive labels over the heating el-
ements and never clean the inside of the rear
window with corrosive or acid products or
other similar chemical cleaning products. Caring for and polishing the vehicle
p
aintw
ork Waxing
R
e
gu

lar waxing protects the paintwork. It is
time to apply a good coat of wax when water
no longer forms droplets and rolls off the
clean paintwork.
Even if a wax solution is used regularly in the
automatic car wash, SEAT recommends pro-
tecting the paint with a hard wax coating at
least twice a year. »
173
Technical data
Advice
Operation
Emergencies
Safety

Care and maintenance
De-icing the door lock cylinder To de-ice the lock cylinders, SEAT recommend
the use of
g
enuine SEAT spray with lubricat-
ing and anti-corrosive properties. CAUTION
The use of products containing degreasing
agent s

to de-ice the locks may rust the lock
cylinder. Protection of vehicle undercarriage
The vehicle underbody is coated to protect it
fr
om c
hemic

al and mechanical damage. The
protective coat on the undercarriage may
wear from use while driving. Therefore, SEAT
recommends that the protective coating on
the undercarriage and on the running gear
should be regularly checked, and repaired if
necessary. WARNING
Additional underseal or anti-corrosion prod-
ucts c

ould catch fire due to the high tempera-
tures reached by the exhaust gas system and
other engine components.
● Do not apply additional underseal or anti-
corro
sion products to the exhaust pipes, cat-
alytic converters, heat shields or other parts
of the vehicle which reach high temperatures. Cleaning the engine compartment
The engine compartment of any motor vehi-
cl
e i

s a potentially hazardous area
››› page 187.
The engine compartment should only be
cleaned by qualified personnel. If it is not
correctly cleaned, the anti-corrosion coating
and consequently electrical components may
be damaged. Moreover, water may filter di-
rectly into the vehicle interior through the wa-
ter chamber ››› .
If the en gine c

ompartment is very dirty, al-
ways take the vehicle to a specialised work-
shop for professional cleaning. SEAT recom-
mends taking your car in for technical serv-
ice.
Water box
The water box is in the engine compartment,
between the windscreen and the engine, and
beneath a perforated cover. Air is taken in
through the water box from outside to the ve-
hicle interior via the heating and air condi-
tioner.
Leaves and other loose objects should be
regularly cleaned away from the water box ei-
ther by hand or with a vacuum. WARNING
When working on the engine or in the engine
comp ar

tment, there is a risk of injury, burns,
accident or fire.
● Before starting work, please ensure you are
famili
ar with the required procedure and the
safety precautions ››› page 187.
● SEAT recommends getting a specialised
workshop t
o do these jobs. CAUTION
If water is manually poured into the water box
(e.g. u s

ing a high pressure cleaning appli-
ance), this could cause significant damage to
the vehicle. For the sake of the environment
Only wash the engine compartment in areas
al loc

ated for this purpose, to prevent dirty
water which may be contaminated by oil,
grease or fuel, from entering the drains. In
some places, even washing this compartment
outside planned areas for this purpose is
banned. 175
Technical data
Advice
Operation
Emergencies
Safety

Care and maintenance
Cleaning padding and textile covers Normal cleaning
● Before applying cleaning products, please
re a
d the instructions for handling and the
warnings shown on the container.
● The upholstery, textile covers, and carpet
should be r
egularly vacuumed (with vacuum
brush).
● We recommend that you use a soft sponge
or lint-free, mic
ro-fibre cloth for normal clean-
ing ››› .
Gener al
s

uperficial dirt on upholstery and
textile covers can be cleaned with a normal
foam cleaning product.
If the upholstery and the material trims are
very dirty, we recommend you have them
cleaned by a specialist cleaning form.
Cleaning stains
It may be necessary to clean the whole sur-
face and not only the stain itself. Especially if
the surface has been dirtied through normal
use. Otherwise, the stained area may be-
come lighter than the rest of the surface after
treatment.
Type of
stainCleaning the vehicle
Water-based
stains, e.g.
coffee or fruit
juice.– Use a sponge and wipe with a solu-
tion of water and wool wash.
– Dry with a dry, absorbent cloth.
Persistent
stains, e.g.
chocolate or
make-up.– Apply a washing paste a)
directly to
the stain and allow it to work.
– Apply clean water using a sponge or
damp cloth to remove the cleaning
product deposits.
– Dry with a dry absorbent cloth.
Grease-based
stains, e.g. oil
or lipstick.– Apply neutral soap or cleaning
paste a)
and allow it to work.
– Remove dissolved grease or colour
particles with an absorbent cloth.
– Then apply clean water. Take care not
to soak the upholstery.
a) Bile soap can be used as a cleaning paste. CAUTION
● Brushe s

should only be used to clean the
mats and floor mat! Other surfaces may be
damaged if a brush is used.
● Do not use steam cleaning equipment, as
the dirt bec
omes more encrusted in the mate-
rial when steam is applied.
● Never use brushes for cleaning damp mate-
rial
as they could damage the surface. Cleaning storage compartments,
drink
s
ho

lders and ashtrays Fig. 161
In the front part of the centre con-
so l
e:

Storage compartment with cup holder. Fig. 162
Ashtray removed and open with area
t o s t

ub cigarettes » 177
Technical data
Advice
Operation
Emergencies
Safety

Care and maintenance
Notes for the user Intr oduction WARNING
Failure to treat the vehicle with the correct
car e inc
reases the risk of accident and injury.
● Observe legal requirements.
● Observe the Instruction Manual. CAUTION
If the vehicle is not properly cared for, dam-
age m a

y occur.
● Observe legal requirements.
● Carry out regular maintenance of the vehi-
cle, ac
cording to specifications in the Mainte-
nance Programme.
● Observe the Instruction Manual. Labels and plates
Fig. 163
Warnings relating to handling of the
C ity


Safety Assist system laser sensor func-
tion. Some parts in the engine compartment come
fr
om the f
act

ory with certificates of safety, la-
bels or plates containing important informa-
tion regarding the operation of the vehicle,
for example, on the fuel tank flap, on the pas-
senger's sun visor, on the driver door strut, or
on the floor of the boot.
● Never remove these certificates of safety,
labels
or plates, and ensure they are kept in
good condition and are legible.
● If a vehicle part, bearing a certificate of
safety
, label or plate, is replaced, the special-
ised workshop should attach the information
back in the same place. Certificate of safety
A certific

ate of safety on the door strut states
that all the safety standards and regulations
established by the national traffic authorities
responsible for road safety were met at the
time of manufacture. It may also give the
month and year of manufacture, together
with the chassis number.
Warning of high voltage label
There is a label close to the bonnet lock
which warns of high voltage in the vehicle's
electrical system.
Warning relating to the City Safety Assist
system laser sensor
There are some warning and information
signs on the City Safety Assist system laser
sensor ››› Fig. 163.
Using your vehicle in other countries
and continents The vehicle is manufactured at the factory for
u
se in a p
ar

ticular country in accordance with
the national legislation in force at the time of
manufacture.
If the vehicle is sold in another country or
used in another country for an extended peri-
od of time, the applicable legislation of that
country should be observed. »
179
Technical data
Advice
Operation
Emergencies
Safety

Checking and refilling levels
Checking and refilling levels
F uel
T y
pes of petrol The correct grade of petrol is listed inside the
fuel
t

ank flap, on the rear right-hand side of
the vehicle.
The vehicle is equipped with a catalytic con-
verter and must only be run on unleaded pet-
rol. The petrol must comply with European
Standard EN 228 or German standard DIN
51626-1 and must be unleaded. You can re-
fuel with a maximum ethanol proportion of
10 % (E10). The types of petrol are differenti-
ated by their octane rating (RON).
The following titles appear on the corre-
sponding adhesive on the fuel tank flap:
Super unleaded 95 octane or normal 91 oc-
tane unleaded petrol
We recommend you use super 95 octane pet-
rol. If this is not available: normal 91 octane
petrol, with a slight decrease in power.
Super unleaded petrol with a minimum of 95
octanes
You should use super petrol with a minimum
of 95 octanes. If super is not available,
in an emergency y
ou
may refuel with normal 91 octane petrol. In
this case only use moderate engine speeds
and a light throttle. Refuel with super as soon
as possible.
In any event you can always refuel with 98-
octane petrol.
Petrol additives
The quality of the fuel influences the behav-
iour, power and service life of the engine.
This is why the petrol you use should carry
suitable additives already included by the
petrol industry, free of metals. These addi-
tives will help to prevent corrosion, keep the
fuel system clean and prevent deposits from
building up in the engine.
If good-quality petrol with metal-free addi-
tives is not available or engine problems
arise, the necessary additives must be added
when refuelling ››› .
Not al
l

petrol additives have been shown to
be effective. The use of unsuitable petrol ad-
ditives may cause significant damage to the
engine and the catalytic converter. Metal ad-
ditives should never be used. Metal additives
may also be contained in petrol additives for
improving anti-detonation ratings or octane
ratings ››› .
S EA
T r

ecommends “genuine Volkswagen
Group Fuel Additives for petrol engines”.
These additives can be bought at SEAT deal- ers, where information on how to use them
can also be o

btained. CAUTION
● Do not r ef

uel if the filler indicates that the
fuel contains metal. LRP ( lead replacement
petrol) fuels contain high concentrations of
metal additives. Using them may damage the
engine!
● Never refuel with fuels containing a large
proportion of
ethanol (for example, E50, E85).
This could damage the fuel system.
● Just filling one full tank of leaded fuel or
fuel c
ontaining other metal additives would
seriously impair the efficiency of the catalytic
converter.
● Only use fuel additives that have been ap-
prov
ed by SEAT. Octane boosting or anti-
knock additives may contain metal additives
that could seriously damage the engine or
the catalytic converter. These additives must
not be used.
● High engine speed and full throttle can
damag
e the engine when using petrol with an
octane rating lower than the correct grade for
the engine. Note
● You m a

y use petrol with a high octane num-
ber than the one recommended for your en-
gine. » 181
Technical data
Advice
Operation
Emergencies
Safety

Checking and refilling levels
●
Natur a
l gas tanks have a limited service
life. Have the natural gas tanks replaced
when required. You can obtain further infor-
mation about this at SEAT dealers or special-
ised workshops. WARNING
If the vehicle underbody touches the ground
or in the ev ent of

a rear collision, there could
be damage to the natural gas tanks.
● Check whether there is a smell of gas.
● If you notice a smell of gas, take the vehicle
to a spec
ialised workshop immediately and
have the natural gas system checked. Note
Have the natural gas system checked regular-
ly b y

a specialised workshop, according to
the Maintenance Programme. Filling the tank
Intr oduction The fuel tank flap is on the rear right of the
v
ehic
l

e. WARNING
Refuelling or handling fuel carelessly can
cau se an e

xplosion or fire resulting in serious
burns and injuries.
● Always make sure that you correctly close
the fuel c
ap to avoid evaporation and fuel
spillage.
● Fuels are highly explosive and inflammable
subs
tances that can cause serious burns and
injuries.
● Fuel could leak out or be spilt if the engine
is not
switched off or if the filler fuel nozzle is
not fully inserted into the tank filler neck
when refuelling. This could lead to a fire, ex-
plosion and severe injuries.
● When refuelling, turn off the engine and
turn off the ignition f
or safety reasons.
● Always turn off mobile telephones, radio
appar
atus and other radio wave emitting
equipment before refuelling. Electromagnetic
waves could cause sparks and lead to a fire.
● Never enter the vehicle while refuelling. If it
is ab
solutely necessary to enter, close the
door and touch a metal surface before touch-
ing the filler nozzle again. This will prevent
the generation of static electricity. Sparks
could cause a fire when refuelling.
● Never handle fuel close to flames, sparks or
obj
ects with slow combustion (e.g. ciga-
rettes).
● Avoid static electricity and electro-magnet-
ic ra
diation when refuelling. ●
Ob ser

ve the safety regulations of the serv-
ice station.
● Never spill fuel on the vehicle or in the lug-
gage c
ompartment. WARNING
For safety reasons, SEAT does not recommend
c arr y

ing a spare fuel canister in the vehicle.
Fuel could be spilled and catch fire, above all
in case of an accident and this applies to a
full container as well as empty containers.
This could lead to explosions, fires and inju-
ries.
● Observe the following if you exceptionally
have t
o carry fuel in a canister:
– Never place a fuel container, to fill it, in-
side the vehicle or on the vehicle, for ex-
ample, in the luggage compartment. Fill-
ing in these circumstances could create
an electrostatic charge and spark that
could ignite fuel fumes.
– Always place the canister on the ground
to fill it.
– Insert the fuel nozzle into the neck of the
canister as far as possible.
– If you are using a metal fuel canister, the
nozzle must always touch the canister
while it is being filled to avoid static elec-
tricity.
– Follow the legal requirements for the use,
storage and transport of spare fuel canis-
ters. » 183
Technical data
Advice
Operation
Emergencies
Safety

Checking and refilling levels
driving. Whenever the ignition is switched
on, the needl e c
h
anges first for a few sec-
onds to the petrol area in order to display the
current level of fuel. The needle then moves
to the natural gas area. After the engine is
started, the needle changes to the area corre-
sponding to the current operating mode.
Problem: if the vehicle is left parked for a
long time just after refuelling, the gas level
indicator does not accurately indicate the
same level shown after refuelling when the
vehicle is started up again. This is not due to
a leak in the system, but to a drop in pres-
sure in the gas tank for technical reasons af-
ter a cooling phase immediately after refuel-
ling. WARNING
Driving with insufficient fuel reserve could re-
su lt

in the vehicle breaking down in traffic
and a serious accident.
● If the fuel level is too low then the fuel sup-
ply t
o the engine can become irregular espe-
cially on slopes.
● If the engine “is choked” or stalls due to
lack
of or irregularity of the fuel supply, the
power steering as well as all of the driver as-
sistance systems including braking assis-
tance will stop working.
● Always refuel when there is only one quar-
ter of the f
uel tank left to avoid running out of
fuel. CAUTION
● Alw a

ys pay attention to any lit control
lamps and to the corresponding descriptions
and instructions to avoid damage to the vehi-
cle.
● Never run the fuel tank completely dry. An
irregu
lar fuel supply may lead to ignition
faults and unburnt fuel could enter the ex-
haust system. This could damage the catalyt-
ic converter. Note
The arrow next to the fuel pump symbol on
the ins trument

panel ››› Fig. 164 indicates the
side of the vehicle on which the fuel tank flap
is located. Refuelling with petrol
Fig. 166
Open fuel tank flap with tank cap in
the ho l
der Read the additional information carefully
› ›
›

 page 31
Before refuelling, always turn off the engine,
the ignition, mobile telephones, auxiliary
heating and keep them off during refuelling.
Refuelling
The correct petrol type for the vehicle is loca-
ted on a sticker inside the fuel tank flap
››› page 181.
● If the automatic filler nozzle is operated
correctly
, it will switch itself off as soon as
the fuel tank is full ››› .
● Do not continue to refuel if it is turned off!
Other w
i

se, this will fill the expansion cham-
ber and fuel may leak out if the ambient con-
ditions are warm.
Vehicles with a natural gas engine
Every 6 months it is necessary to run on pet-
rol until the control lamp switches off  and
then the tank must be refilled. This is neces-
sary to ensure the efficient operation of the
system and the fuel quality required for run-
ning on gas. WARNING
Do not continue refilling once the fuel nozzle
ha s

switched itself off. The fuel tank may be
filled too much. As a result, fuel may spurt
out and spill. This could lead to a fire, explo-
sion and severe injuries. » 185
Technical data
Advice
Operation
Emergencies
Safety