2015 Seat Mii check engine

Checking and refilling levels
WARNING
The engine compartment is a dangerous area
cap ab
le of causing serious injury.
● For all type of work, always take the utmost
precaution
s, work carefully and note the gen-
eral safety standards in force. Never take per-
sonal risks.
● Never work on the engine or in the engine
compar
tment if you are not familiar with the
necessary operations. If you are not sure
about procedures then visit a specialised
workshop to carry out the necessary work.
Working incorrectly can cause serious inju-
ries.
● Never open the bonnet if you see steam or
cool
ant escaping from the engine compart-
ment. This may cause serious burns. Always
wait until you cannot see or hear the sound of
steam or coolant coming from the engine
compartment.
● Always allow the engine to cool down be-
fore openin
g the bonnet.
● Contact with hot elements of the engine
and the exhau
st system can cause burns.
● Once the engine has cooled, follow the in-
structions
below before opening the bonnet:
– Engage the handbrake and place the gear
selector lever in N or the gear stick in
neutral.
– Remove the key from the ignition.
– Keep children away from the engine com-
partment and never leave them unsuper-
vised. ●
When the engine i s

warm or hot, the cool-
ing system is pressurised. Do not unscrew
the cap on the expansion tank when the en-
gine is hot. Otherwise, coolant may spray out
under pressure causing burns and serious in-
jury.
–After cooling, carefully and slowly un-
screw the cap anticlockwise, gently
pressing down on it.
– Always protect your face, hands and arms
from hot coolant and steam using a large,
thick cloth.
● When refilling liquids, avoid spilling them
on part
s of the engine and the exhaust sys-
tem. Spilled liquids could cause a fire. WARNING
The high voltages of the electrical system can
give el ectric

shocks as well as causing burns
and serious injury and possibly even death!
● Never cause short circuits in the electrical
syst
em. The battery could explode.
● To minimise the risk of electric shock and
serious c
onsequences while the engine is
running or starting the engine, note the fol-
lowing:
– Never touch the electrical wiring of the
ignition system. WARNING
In the engine compartment, there are rotat-
ing p ar

ts that could cause serious injury. ●
Never p l

ace your hands directly on or near
the radiator fan. Touching the rotor blades
could seriously harm you. The ventilator
works according to the engine temperature
and could start suddenly even when the igni-
tion is turned off and the key is removed.
● If any work has to be performed when the
engine is
started or with the engine running,
there is an additional, potentially fatal, safety
risk from rotating parts, such as the drive
belts, alternator, radiator fan, etc., as well as
from the high-voltage ignition system. Al-
ways work with the utmost caution.
– Always make sure that no parts of your
body, jewellery, ties, loose clothing and
long hair can be trapped by the rotating
parts of the engine. Before any work, re-
move ties and jewellery (necklaces, etc),
tie long hair back and tie all items of
loose clothing to your body to make sure
that they cannot be trapped by engine
components.
– Take extreme caution when operating the
accelerator and remain attentive. The ve-
hicle could move, even if the handbrake
is applied.
● Always make sure you have not left any ob-
jects, s
uch as cleaning cloths and tools, in
the engine compartment. If any object is left
in the engine compartment, this could cause
malfunctions, engine faults and even a fire. » 185
Technical data
Advice
Operation
Emergencies
Safety

Advice
WARNING
Refill liquids and certain materials can catch
fire e a
sily in the engine compartment, caus-
ing a fire and serious injury!
● Never smoke.
● Never work close to places exposed to
flames
or sparks.
● Never pour service fluids over the engine.
These fluid ma
y ignite hot engine parts and
cause injuries.
● If it is necessary to work on the fuel system
or the electrica
l system, please follow the in-
structions below:
–Always disconnect the vehicle battery.
– Never work close to heaters, heat sources
or places exposed to flames or sparks.
● Always keep a recently serviced and per-
fectly w
orking fire extinguisher close by.
● Never cover the engine with additional in-
sul
ating materials such as a blanket. Risk of
fire! WARNING
If the bonnet is not correctly closed, it could
sud den

ly open while driving leaving the driv-
er without visibility. This could result in a se-
rious accident.
● After closing the bonnet, always check that
it is
properly secured by the locking mecha-
nism in the lock carrier piece. The bonnet
must be flush with the surrounding body pan-
els. ●
Whil e driv

ing, if you notice that the bonnet
is not correctly closed then stop immediately
and close it correctly.
● Make sure the bonnet is opened and closed
safely
(when the engine is off, no smoke is
coming from the engine compartment, there
is enough space around the car, no people
are near, etc.). CAUTION
● When r efil

ling or changing service liquids,
ensure that you put the liquids into the right
tank. Making a mistake when refilling could
cause serious malfunctions and damage the
engine!
● To avoid damage to the bonnet and to the
winds
creen wiper arms, only open it when
the windscreen wipers are in place against
the windscreen.
● Before driving, always lower the wiper
arms. For the sake of the environment
Service fluids leaks are harmful to the envi-
ronment . F

or this reason you should make
regular checks on the ground underneath
your vehicle. Take the vehicle to a specialised
workshop to be checked if you see stains, oil
or other fluids on the ground. Collect any
spilt service fluids and allow a professional to
dispose of them. Engine oil
Intr oduction WARNING
Incorrectly handling engine oil can cause in-
jury and seriou

s burns.
● Always protect your eyes when handling
engine oil
.
● Oil is toxic and must be kept out of the
reac
h of children.
● Engine oil should only be kept in its origi-
nal
packaging; the same goes for used oil un-
til it is disposed of.
● Never store engine oil in empty food con-
tainers
or bottles as other people may acci-
dentally drink it.
● Regular contact with engine oil can be bad
for the skin. If
you come into contact with en-
gine oil, wash your skin with soap and water.
● With the engine running, the engine oil
gets
extremely hot and can cause severe skin
burns. Always wait until the engine has fully
cooled. For the sake of the environment
Similar to the other service liquids, spilled
engine oi l

can be bad for the environment.
Collect these liquids in suitable containers
and dispose of them while respecting the en-
vironment. 186

Checking and refilling levels
Warning and indication lamps Flashes
Engine oil pres-
sure too low.

Stop the vehicle!
Switch off the engine. Check the
engine oil level, and if necessary,
refill with ››› page 187.
engine oil - If the warning indicator
flashes although the oil level is cor-
rect, do not continue driving or
leave the engine running. Other-
wise, the engine could be dam-
aged. Seek specialist assistance. WARNING
Observe the safety warnings ›››
in On the
ins trument
panel on page 27. Engine oil specifications
Replacement engine oil must strictly comply
w
ith the s
pec

ifications.
The correct oil must be used to ensure the
correct operation and long service life of the
engine. The engine comes with a high-quality
multigrade oil that can generally be used all
year round.
Only use an engine oil that complies to SEAT
standards whenever possible ››› . Only refill
en gine oi l

using approved engine oil in ac-
cordance with the corresponding VW stand- ard (
››› table on page 187). All oils indicated
ar
e synthetic multigrade oils .
Engine oils are being continuously further
developed. Technical services are constantly
updated with any modifications. SEAT there-
fore recommends that you have the engine
oil changed by a technical service.
Specifications of engine oil with a service de-
pendent on time/distance travelled
44 kW - 55 kW Petrol en-
ginesVW 504 00, VW 502 00
Natural gas engineVW 502 00 CAUTION
● Only u

se engine oils whose specifications
are expressly approved by SEAT. The use of
any other type of oil could cause engine dam-
age!
● No additives should be used with engine
oil. An
y damage caused by the use of such
additives would not be covered by the factory
warranty. Checking engine oil level and topping
up
Fig. 167
Marked engine oil dipstick Fig. 168
In the engine compartment: Engine
oi l
fi

ller cap. Read the additional information carefully
› ›
›

 page 30 »
187
Technical data
Advice
Operation
Emergencies
Safety

Advice
Preparations
● Park the vehicle on flat ground so that the
en gine oi
l
reading is correct.
● The engine must be hot to be able to check
the engine oil
level. Stop the engine and wait
a few minutes for the oil to drain back into
the sump.
● Open the bonnet  ›››
page 184.
● The engine oil filler neck can be recognised
by the symbo
l  on the cap ››› Fig. 168 and
the dipstick by its coloured handle.
Check the engine oil level
● Pull out the dipstick and wipe it on a clean
cloth.
● Rep

lace the dipstick, pushing it in as far as
it wi
ll go. If the dipstick to measure engine oil
has a mark, when you reintroduce it this
mark should slot into the corresponding
groove located on the upper end of the tube.
● Remove the oil dipstick again and check
the engine oil
level.
● After reading the oil level, replace the dip-
stick
in the tube completely. WARNING
Oil could catch fire if it comes into contact
with hot en

gine components. This could lead
to a fire, explosion and severe injuries.
● Always ensure that after topping of oil, the
engine oil
filler cap is correctly tightened. This will avoid engine oil spilling onto hot en-
gine par
t

s when the engine is running. CAUTION
● If the en gine oi

l level is above the area
››› Fig. 167 A do not start the engine. Seek
spec i
alist assistance. Otherwise catalytic
converter and engine damage may occur.
● When refilling or changing service liquids,
ensur
e that you put the liquids into the right
tank. Making a mistake when refilling could
cause serious malfunctions and damage the
engine! For the sake of the environment
The oil level must never be above area A .
Otherw i

se oil can be drawn in through the
crankcase breather and escape into the at-
mosphere via the exhaust system. Engine oil consumption
The consumption of engine oil can be differ-
ent
fr
om one en

gine to another and can vary
during the useful life of the engine.
Depending on how you drive and the condi-
tions in which the vehicle is used, oil con-
sumption can be up to 1 ltr./2000 km. In the
case of new vehicles, the consumption can
exceed this figure over 5,000 kilometres. For
this reason the engine oil level must be checked at regular intervals, preferably when
fillin

g the tank and before a journey.
When the engine is working hard, for in-
stance during sustained high-speed motor-
way cruising in summer or when climbing
mountain passes, the oil level should pref-
erably be kept within area ››› Fig. 167 A .
Topping up engine oil Read the additional information carefully
›› ›

 page 30.
The engine oil must be changed regularly ac-
cording to the specifications of the Mainte-
nance Programme.
Due to the problems linked with disposing of
used oil and the need for suitable tools and
special knowledge, always visit a specialised
workshop to have the engine oil and filter
changed. SEAT recommends taking your car
in for technical service.
Detailed information on the service intervals
is shown in the Maintenance Programme.
Engine oil additives make new oil darker after
the engine has been running for a short peri-
od. This is normal and does not mean more
frequent oil changes are required.
188

Checking and refilling levels
WARNING
Only change the engine oil yourself if you
hav e the s
pecialist knowledge required!
● Before opening the bonnet, read and ob-
serve the w
arnings ››› page 184.
● Wait for the engine to cool down. Hot oil
may
cause burn injuries.
● Wear eye protection to avoid injuries, such
as ac
id burns, caused by splashes of oil.
● When removing the oil drain plug with your
finger
s, keep your arm horizontal to help pre-
vent oil from running down your arm.
● Wash your skin thoroughly if it comes into
contact
with engine oil.
● Engine oil is poisonous! Used oil must be
stor
ed in a safe place out of the reach of chil-
dren. CAUTION
No additives should be used with engine oil.
This c

ould result in engine damage. Any dam-
age caused by the use of such additives
would not be covered by the factory warranty. For the sake of the environment
Before changing the engine oil, find a suita-
bl e loc

ation or service for proper disposal. For the sake of the environment
Always dispose of engine oil with the utmost
re s

pect for the environment. Never dispose of used engine oil in places such as a garden,
wood
s, dr

ains, roads, paths, rivers and drain-
age systems. Engine coolant
Introduction WARNING
Engine coolant is toxic!
● Only keep engine coolant in its original
c ont ainer

, tightly shut and in a safe place.
● Never store engine coolant in empty food
container
s or bottles as other people may ac-
cidentally drink it.
● Always keep engine coolant out of reach of
chil
dren.
● Ensure that the proportion of engine cool-
ant ad
ditive corresponds to the lowest out-
side temperature to which the vehicle will be
exposed.
● If the outside temperature is extremely low,
the engine coo
lant could freeze causing the
vehicle to stop. As this would also cause the
heating to stop working, vehicle occupants
without warm clothing could freeze. For the sake of the environment
Coolants and additives can contaminate the
env ir

onment. If any fluids are spilled, they should be collected and correctly disposed
of, w
ith r

espect to the environment. Coolant warning lamp
Several warning and indication lamps light
up for a f
ew sec

onds when the ignition is
switched on, signalling that the function is
being verified. They will switch off after a few
seconds. 
It lights up
Excessive engine
coolant tempera-
ture.
 Stop the vehicle!
Stop the vehicle safely as soon as
possible. Switch off the engine and
let it cool.
Insufficient en-
gine coolant lev-
el.  Stop the vehicle!
Check the engine coolant when the
engine has cooled and, if it is low,
refill with engine coolant
››› page 190.
Engine coolant
system faulty.  Do not drive any further.
Obtain professional assistance. 
Flashes
Engine coolant
system faulty.Seek specialist assistance.
WARNING
Observe the safety warnings ›››
in On the
ins trument
panel on page 27. » 189
Technical data
Advice
Operation
Emergencies
Safety

Advice
Note
On the display of the Portable Navigation
Sy s
tem (supplied by SEAT) ››› page 164 an en-
gine coolant temperature gauge can be seen. Checking the coolant level and top-
ping up
Fig. 169
In the engine compartment: Marking
on c oo
l

ant expansion tank Fig. 170
In the engine compartment: Coolant
exp an

sion tank cap Read the additional information carefully
› ›
›

 page 31
If the coolant level is low, the coolant warn-
ing indicator will light.
Preparations
● Park the vehicle on even, flat and firm
ground.
● A

llow the engine to cool ›››
.
● Open the bonnet  › ›
›
page 184.
● The coolant expansion tank is easily recog-
nisab
le because of the symbol  on the cap
››› Fig. 170.
Checking the engine coolant level ● When the engine is cold, check the coolant
level
using the side marking on the expan-
sion tank ››› Fig. 169. ●
If the lev
el is below the “MIN” mark, top up
with coolant. When the engine is hot it may
be slightly above the marked area.
Topping up the engine coolant level
● Always protect your face, hands and arms
from hot c
oolant and steam using a large,
thick cloth over the coolant expansion tank
cap.
● Remove the cap very carefully ›››
.
● Only refill using new engine c
oo
lant ac-
cording to SEAT specifications
( ›››
 page 31)
››› .
● The engine coolant level should be be-
tw een the m
ark

s on the coolant expansion
tank ››› Fig. 169. Do not exceed the top level
of the marked area ››› .
● Screw on the cap tightly.
● If, in the event of an emergency, you have
no c oo
l

ant that is compliant to the required
specifications ( ›››
 page 31), do not use
another type of additive. Instead, top up with
distilled water only ››› . Then re-establish
the c orr
ect

proportion of the mixture with the
correct additive as soon as possible
›››  page 31. WARNING
Hot vapours and coolant can cause serious
burn s.190

Checking and refilling levels
●
Never open the c oo
lant expansion tank if
steam or coolant is coming from the engine
compartment. Wait until you cannot see or
hear any steam or coolant escaping.
● Always wait until the engine has complete-
ly coo
led before very carefully opening the
expansion tank cap. Contact with hot ele-
ments of the engine can cause skin burns.
● When the engine is warm or hot, the cool-
ing sys
tem is pressurised. Do not unscrew
the cap on the expansion tank when the en-
gine is hot. Otherwise, coolant may spray out
under pressure causing burns and serious in-
jury.
– Carefully and slowly unscrew the cap an-
ti-clockwise, gently pressing down on it.
– Always protect your face, hands and arms
from hot coolant and steam using a large,
thick cloth.
● When refilling liquids, avoid spilling them
on part
s of the engine and the exhaust sys-
tem. Spilled liquids could cause a fire. Under
specific circumstances, the ethylene glycol
can catch fire. WARNING
If there is not enough anti-freeze in the cool-
ant sy s

tem, the engine may fail leading to se-
rious damage.
● Please make sure that the percentage of
additiv
e is correct with respect to the lowest
expected ambient temperature in the zone in
which the vehicle is to be used. ●
When the outs ide t

emperature is very low,
the coolant could freeze and the vehicle
would be immobilised. In this case, the heat-
ing would not work either and inadequately
dressed passengers could die of cold. CAUTION
● If ther e i

s no appropriate coolant liquid
available, fill it using distilled water, and
nothing else. Any other type of water may
lead to considerable rusting in the engine
due to its chemical components. This could
consequently damage the engine. If you have
not used distilled water but another type of
water to top up the coolant, a specialised
workshop must immediately replace all of the
fluid in the engine cooling system.
● Only top up coolant to the top level of the
marked ar
ea ››› Fig. 169. Otherwise the ex-
cess coolant will be forced out of the cooling
system when the engine is hot, causing dam-
age.
● If a lot of liquid coolant has been lost, wait
for the engine t
o cool down completely before
adding coolant. Extensive coolant loss is an
indication of leaks in the engine cooling sys-
tem. Have the engine cooling system inspec-
ted immediately by a specialised workshop.
Otherwise engine damage may occur.
● When refilling service liquids, ensure that
you put
the liquids into the right tank. Mak-
ing a mistake when refilling could cause seri-
ous malfunctions and damage the engine! CAUTION
The original additives should never be mixed
with c oo

lants which are not approved by
SEAT. Otherwise, you run the risk of causing
severe damage to the engine and the engine
cooling system.
● If the fluid in the expansion tank is not pur-
ple b
ut is, for example, brown, this indicates
that the G13 additive has been mixed with an
inadequate coolant. The coolant must be
changed as soon as possible if this is the
case! This could result in serious faults and
engine damage. Brake fluid
Chec k
in

g the brake fluid level Read the additional information carefully
› ›
›

 page 32
In the course of time, the brake fluid absorbs
water from the ambient air. If there is too
much water in the brake fluid, the brake sys-
tem could be damaged. In addition, the boil-
ing point of the brake fluid is significantly
lowered. When the brake fluid contains too
much water and the brakes are subject to
considerable forces, bubbles of water vapour
can form in the system. These bubbles can
significantly reduce braking power, notably
increasing braking distance, and could even
result in the total failure of the brake system. »
191
Technical data
Advice
Operation
Emergencies
Safety

Checking and refilling levels
Windscreen washer reservoir Chec k
in
g and topping up the wind-
screen washer reservoir with water Read the additional information carefully
›› ›

 page 32
Check the water level in the windscreen
washer reservoir regularly and top up as re-
quired.
● Open the bonnet  ›››
page 184.
● The washer reservoir is marked with the
symbol 

on the lid.
● Check there is enough water in the reser-
voir.
● T

o top up, mix water with a window cleaner
recommended b
y SEAT ››› . Please follow
the in s
truction
s for use found on the packag-
ing.
● In cold weather, a special antifreeze should
also be ad
ded to prevent the water from
freezing.
Reservoir capacity
The washer bottle capacity is approximately 3
litres. WARNING
If the water from the windscreen washer does
not c ont

ain enough anti-freeze, it may freeze on the windscreen and rear window, reducing
for
w

ard and rear visibility.
● In winter, ensure the windscreen washer
contain
s enough anti-freeze.
● In cold conditions, you should not use the
winds
creen washer system unless you have
warmed the windscreen with the ventilation
system. The antifreeze could freeze on the
windscreen and reduce visibility. WARNING
Never mix an unsuitable antifreeze or other
s imi l

ar additives with the windscreen washer
water. A greasy layer may be formed on the
windscreen which will impair visibility.
● Use clean water with a window cleaner rec-
ommended by
SEAT.
● If necessary, add a suitable antifreeze to
the water in the r
eservoir. CAUTION
● Do not mi x

cleaning products recommen-
ded by SEAT with other products. This could
lead to flocculation and may block the wind-
screen washer jets.
● When topping up service fluids, make abso-
lutely c
ertain that you fill the fluids into the
correct reservoirs. Using the wrong fluids
could cause serious malfunctions and engine
damage! Vehicle battery
Intr oduction Read the additional information carefully
›› ›

 page 32.
The battery is a component of the vehicle's
electrical system.
Never work on the electrical system without
fully understanding the operations required,
the applicable safety standards and without
the correct tools ››› ! If required, have any
w ork
c

arried out by a specialised workshop.
SEAT recommends taking your car in for tech-
nical service. Negligent work can cause seri-
ous injury.
Location of the vehicle battery
The battery is located in the engine compart-
ment.
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.»
193
Technical data
Advice
Operation
Emergencies
Safety