low oil pressure Seat Arona 2018 Owner's Manual

The essentials
Ignition:  Do not carry on
driving! Engine coolant level
too low, coolant temperature
too high
››› page 278
Flashing: Fault in the engine
coolant system.  
Do not continue driving!
Engine oil pressure too low.››› page 275 
Fault in the battery.›››
page 281 
Driving light totally or partial-
ly faulty.›››
page 106
Fault in the cornering light
system.››› page 143 
particulate filter blocked.›››
page 200 
Flashing: Fault in the oil level
detection. Control manually.
›››
page 275Ignition: Insufficient engine
oil. 
Fault in the gearbox.›››
page 194 
Immobiliser active.›››
page 175 
Service interval display›››
page 43 
Mobile telephone is connec-
ted via Bluetooth to the origi-
nal telephone device.›››
page 124
››› page 129
››› Booklet
Audio or
navigation
system 
Mobile telephone battery
charge meter. Available only
for devices pre-installed in
factory. 
Freezing warning. The outside
temperature is lower than
+4°C (+39°F).›››
page 41 
Start-Stop system activated.
›››
page 202 Start-Stop system unavaila-
ble.

Low consumption driving sta-
tus›››
page 119 
›››
page 118 On the instrument panel
Fig. 56
Warning lamp for disabling the front
p as

senger airbag. 

Front passenger front airbag is
disabled (  
 ).
››› page
90 

The front passenger front airbag
is activated (  
 ).
››› page
90 
››› in Activation and deactivation of
front passenger airbag* on page 91
››› page 90 Gearbox lever
Manual
gearbox Fig. 57
Gear shift pattern of a 5 or 6-speed
m anual
g

earbox. The position of the gears is indicated on the
g
e
arbo

x lever ›››
Fig. 57.
● Press the clutch pedal and keep your foot
right do wn. » 49

The essentials
the wheel condition and hub mounting surfa-
c e
s.
These surfaces must be clean before fit-
ting the wheel.
Wheel bolt tightening torque
The prescribed tightening torque for wheel
bolts for steel and alloy wheels is 120 Nm.
After changing a wheel, have the tightening
torque checked immediately with a torque
wrench that is working perfectly.
Before checking tightening torque, have any
rusty wheel bolts that are difficult to screw re-
placed and clean the wheel hub threads.
Never apply grease or oil to wheel bolts or to
the wheel hub threads. Even if the bolts have
been tightened to the prescribed torque, they
could come loose while driving. WARNING
If the wheel bolts are not properly tightened,
they c ou

ld come loose while driving and
cause an accident, serious injury and loss of
vehicle control.
● Use only wheel bolts which correspond to
the rim in question.
● Nev

er use different wheel bolts.
● Wheel bolts and threads should be clean,
free of oi
l and grease, and it should be possi-
ble to screw them easily.
● To loosen and tighten wheel bolts, only use
the wheel wrenc
h that came with the car from
the factory. ●
Loo sen the wheel

bolts only about one turn
before raising the vehicle with the jack.
● Never apply grease or oil to wheel bolts or
to the wheel hub thr
eads. Even if the bolts
have been tightened to the prescribed tor-
que, they could come loose while driving.
● Never loosen the screwed joints of wheel
rims with bo
lted ring trims.
● If wheel bolts are tightened below the pre-
scribed t
orque, the bolts and rims could come
loose while driving. If tightening torque is too
high, the wheel bolts or threads can be dam-
aged. CAUTION
When removing/fitting the wheel, the rim
ma y

hit and damage the brake disc. For this
reason, please take care and get a second
person to assist you. Tyres with compulsory direction of ro-
t
ation A directional tread pattern can be identified
b
y
the arr

ows on the sidewall that point in
the direction of rotation. Always observe the
direction of rotation indicated when fitting
the wheel to guarantee optimum properties
of this type of tyres with regard to grip,
noises, wear and aquaplaning.
If it is absolutely necessary to fit the spare
tyre* against the direction of rotation, drive with care as this means the tyre does not of-
fer optimum drivin

g properties. This is of par-
ticular importance when the road surface is
wet.
To return to directional tread tires, replace
the punctured tyre as soon as possible and
restore the obligatory direction of rotation of
all tyres.
Subsequent work ●
Alloy wheels: rep
l
ace the wheel bolt caps.
● Plate wheels: repl
ace the wheel hubcap.
● Return all tools to their proper storing loca-
tion.
● If the replaced wheel does not fit in the
spar
e wheel housing, store it safely in the
luggage compartment ›››
 page 158.
● Check the tyre pressure of the newly moun-
ted tyr
e as soon as possible.
● In vehicles fitted with a tyre pressure indi-
cator
, adjust the pressure and store it in
memory ›››
 page 287.
● Have the tightening torque of the wheel
bolts c
hecked as soon as possible with a tor-
que wrench (it should be 120 Nm). Mean-
while, drive carefully.
● Have the flat tyre replaced as quickly as
pos s

ible. 69

Fuses and bulbsNo.Consumer/Amps
13Lights switch, steering column LSS
and SMLS, diagnostic port, rain/light
sensor7.5
14steering column LSS: wiper controls10
15Instrument panel7.5
16Right Lights Power Supply40
17Right Door Window Control30
18Windscreen wipers30
19Radio, Multimedia System25
20Heated Rear Window30
21SCR Control Unit30
23Rear View Camera7.5
24Connectivity Box, external audio
source wiring (Double USB-Aux IN),
telephone amplifier, MIB display5
25Steering Column Electronics (MFL)7.5
26Gateway7.5
27Active Suspension Control Unit7.5
28DWA Sensor7.5
29DWA Horn7.5
319AA/9AB climate control unit7.5
9AK Climatronic control unit15
32Steering Column LSS, without Kessy7.5
No.Consumer/Amps
33Left Door Window Control30
35Left Lights Power Supply40
36Signal Horn20
37Heated seats control unit30
38BCM Power C6330
39BSD, PDC, MRR10
40
Lights switch, diagnostic port, head-
light range control, steering column
LSS: lights, halogen headlights, re-
verse light switch, electrochromic mir-
ror, RKA without radio
7.5
41Regulation of unfolded exterior mir-
rors,7.5
42Clutch pedal, ignition relays, CNG re-
lay coil, AC pressure sensor7.5
43DWP relay coil, rear window wiper mo-
tor, heated nozzles15
44Airbag7.5
45Leimo Plus left headlight7.5
46Leimo Plus right headlight7.5
48Steering Column Lock, Kessy Control
Unit7.5
49SCR Relay Coil7.5
53Automatic gearbox lever, ZSS7.5
No.Consumer/Amps
58Double Water Pump7.5
59Heated rear view mirrors10
60Tow Hook30
61Tow Hook30
Fuse arrangement in engine compart-
ment
Read the additional information carefully
› ›
›

 page 62
Only replace fuses with a fuse of the same
amperage (same colour and markings) and
size.
No.Consumer/Amps
1
MPI Engine Injection Module10
TSI Engine Injection Module15
Diesel Engine Injection Module30
2
Fuel metering valve (TJ4/T6P/TJ7), Low
temperature coolant pump
(TJ4/T6P/TJ7); Oil Pressure Regulating
Valve (TJ1), Coolant Valve AGR (TJ1),
High and Low Water Bumps (TJ1), SCR
relay coil
7.5
3Lambda probes15» 105
Technical data
Advice
Operation
Emergencies
Safety

EmergenciesNo.Consumer/Amps
4Petrol engine pump relay (MPI), Gauge
control unit (TSI and diesel)15
5
Pressure transducer, EPW Solenoid
Valve, TOG Sensor, PWM Electric fan,
Camshaft Control Valve, Active Carbon
Tank Valve and Oil Pressure Regulat-
ing Valve (TSI)
10
6
Ignition coils (MPI and TSI)20
Glow plug relay, Suction hose resist-
ance (diesel)7.5
7Vacuum pump (TSI)15
8Injectors and EKP Relay Coil (MPI and
CNG), Fuel metering valve (diesel)10
9Servo sensor7.5
10Vref Battery: Gateway, BDM and BCM7.5
14Engine Injection Module, Main Engine
Relay, ESC7.5
15Automatic Gearbox DQ200 and AQ16030
1750 Diag7.5
18Starter Motor30
20ESC (Pump)60
ABS (Pump)40
21ESC/ABS (Valves)25
24TH4 Electric fan without A/C for mod-
erate climate countries30
No.Consumer/Amps
25
TH4 fan with A/C or T5I for moderate
climate countries20
PTC140
26TJ1/TJ4/TJ7/T6P or TH4/T5I Electric fan
for warm climate countries50
27
TH4 fan with A/C or T5I for moderate
climate countries30
PTC240
28PTC340
Changing bulbs
Gener a
l

notes Read the additional information carefully
› ›
›

 page 63
Changing bulbs requires a certain degree of
practical skill.
If you choose to change the engine compart-
ment lamps yourself, remember that it is a
dangerous area ››› in Safety notes for work
in the en gine c
omp

artment on page 273.
Always use identical bulbs with the same
designation. The name can be found on the
base of the bulb holder. Depending on how equipped the vehicle is,
there are diff

erent sets of headlights and tail
lights:
● Halogen headlights.
● Full-LED main headlights*
● Halogen headlights with LED daytime run-
ning lights*
● Re

ar bulb light
● LED rear light*
Ful
l-LED headlight system*
Full-LED headlights handle all light functions
(daylight, side light, turn signal, dipped
beam and route light) with light emitting di-
odes (LEDs) as a light source.
Full-LED headlights are designed to last the
lifetime of the vehicle and the bulbs cannot
be replaced. In case of headlight failure, go
to an authorised workshop to have it re-
placed. WARNING
● Tak e p

articular care when working on com-
ponents in the engine compartment if the en-
gine is warm, there is a risk of burns.
● Bulbs are highly sensitive to pressure. The
glas
s can break when you touch the bulb,
causing injury.
● When changing bulbs, please take care not
to injure
yourself on sharp parts in the head-
light housing. 106

Operation
Examples of priority 1 warning messages
(r ed)
● Br ak
e system symbol  with the warnin
g
message STOP BRAKE FLUID INSTRUC-
TION MANUAL or STOP BRAKE FAULT IN-
STRUCTION MANUAL .
● Coolant symbol  with the warnin
g mes-
sage STOP SEE COOLANT INSTRUCTION
MANUAL .
● Engine oil pressure symbol  with the
warnin
g message STOP ENGINE OIL
PRESSURE LOW! INSTRUCTION MANUAL .
Warning messages, Priority 2 (yellow)
If one of these faults occurs, the correspond-
ing warning lamp lights up and is accompa-
nied by an audible warning. Check the corre-
sponding function as soon as possible al-
though the vehicle may be used without risk.
If several priority 2 warning messages are de-
tected at the same time, the symbols are dis-
played one after the other for about 2 sec-
onds at a time. After a set time, the informa-
tion text will disappear and the symbol will
be shown as a reminder at the side of the
display.
Priority 2 warning messages will not be
shown until all Priority 1 warning messages
have been dealt with! Examples of priority 2 warning reports (yel-
low):*
●
Fuel

warning light with the information text
PLEASE REFUEL . WARNING
If the warning lamps and messages are ignor-
ed, the v ehic

le may stall in traffic, or may
cause accidents and severe injuries.
● Never ignore the warning lamps or text
mess
ages.
● Stop the vehicle safely as soon as possible.
● Park the vehicle away from traffic and en-
sure th
at there are no highly flammable ma-
terials under the vehicle that could come into
contact with the exhaust system (e.g. dry
grass, fuel).
● A faulty vehicle represents a risk of acci-
dent for the driv
er and for other road users. If
necessary, switch on the hazard warning
lamps and put out the warning triangle to ad-
vise other drivers.
● Before opening the bonnet, switch off the
engine and al
low it to cool.
● In any vehicle, the engine compartment is a
hazar
dous area and could cause severe inju-
ries ››› page 273. CAUTION
Failure to heed the control lamps and text
mes s

ages when they appear may result in
faults in the vehicle. Introduction to the Easy
C
onnect
sy

stem*
System settings (CAR)* CAR menu Read the additional information carefully
›› ›

 page 34
To select the settings menus, depending on
the version, press the Easy Connect button  and the
S
ET
TINGS function button, OR
pr e
s

s the  button and then SETTINGS .
The act ual
number of
menus available and
the name of the various options in these me-
nus will depend on the vehicle’s electronics
and equipment.
When the function button check box is activa-
ted , the function is active.
Pressing the menu button  will always take
y ou t
o the l

ast menu used.
Any changes made using the settings menus
are automatically saved on closing those me-
nus.
Menu Vehicle settingsPage
ESC system››› page 181
Tyres››› page 287 122

Driving
Take the vehicle to a specialised workshop
and h av
e the f
ault repaired without delay.
 Gearbox: System fault! You
can continue driving in D until
switching off the engine
Stop the vehicle in a safe place well away
from moving traffic. Seek specialist assis-
tance.  Gearbox: too hot. Adapt your
driving accordingly
Continue driving at moderate speeds. When
the warning lamp switches off, you can con-
tinue driving in a normal manner.  Gearbox: press the brake and
engage a gear again.
If the fault was caused by a gearbox with a
high temperature, this driver message will be
displayed when the gearbox has cooled
again.
Gear-change indicator
Selecting the optim
al gearWhile driving, and depending on vehicle
equipment, the in
s
trument

panel display may
show a recommendation with the gear num-
ber that would be advisable to save fuel. In vehicles with an
automatic gear
box, the
selector lever must be in the tiptronic posi-
tion ››› page 190.
No recommendation will appear if the opti-
mal gear is already engaged. The current
gear will be displayed.
DisplayMeaning 
The optimal gear is selected.
  
Changing to a higher gear is recom-
mended.
  
Changing to a lower gear is recom-
mended.
Information regarding the “cleanliness” of
the die
sel
p

articulate filter
The exhaust system manager detects that the
diesel particulate filter is nearly saturated
and contributes to self-cleaning by recom-
mending the optimal gear. For this reason, it
might be necessary to drive for a short time
at a high rpm. WARNING
The gear change indicator is only an auxiliary
fu nction and in no c

ase should be a substi-
tute for careful driving.
● The responsibility of choosing the correct
gear dependin
g on the situation (e.g. over-
taking, driving up or down a slope or towing a
trailer) lies with the driver. For the sake of the environment
Selecting the correct gear can help to save
fuel . Note
The recommended gear indication turns off
when the clut c

h pedal is pressed in vehicles
with manual gearbox or when the selector
lever is removed from the tiptronic position in
vehicles with an automatic gearbox. Steering
Intr oduction The power steering is not hydraulic but elec-
tr
omec
h

anical. The advantage of this steer-
ing is that it foes not need flexible hydraulic
pipes, hydraulic oil, pump, filter or other
parts. The electromechanical system saves
fuel. Whereas a hydraulic system needs con-
tinuous oil pressure, electromechanical
steering only needs power when it is used.
In vehicles with electromechanical steering,
the assisted steering function automatically
adjusts according to vehicle speed, steering
wheel torque and wheel orientation. The
power steering only works when the engine
is running. »
195
Technical data
Advice
Operation
Emergencies
Safety

Advice
freezing. Apply silicone spray to the rubber
se al
s.
Af
ter washing the vehicle
– After washing, avoid sudden and sharp
brakin

g. “Dry” the brakes by braking sever-
al times. WARNING
● Wa sh

your vehicle with the ignition switch-
ed off.
● Protect your hands and arms from cuts on
sharp meta
l edges when cleaning the under-
body, the inside of the wheel housings etc.
Risk of injury.
● Water, ice and salt on the brake system can
reduce br
aking effectiveness. Risk of acci-
dent. CAUTION
● Never r emo

ve dirt, mud or dust if the vehi-
cle surface is dry. Never use a dry cloth or
sponge for cleaning purposes. This could
scratch the paintwork or glass on your vehi-
cle.
● 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. Risk of freezing. For the sake of the environment
To protect the environment, the vehicle
shoul d be w

ashed only in specially provided
wash bays, to prevent toxic, oil-laden waste
water from entering the sewer system. In
some places, washing vehicles outside wash
bays is prohibited. Note
Do not wash the vehicle in direct sunlight. Washing the vehicle with a high pres-
s
ur
e c

leaner Be particularly careful when using a high
pr
e
s

sure cleaner!
– Always observe the instructions for the
high-pres

sure cleaner, particularly those
concerning the pressure and the spraying
distance.
– Increase the spraying distance for soft ma-
terial

s and painted bumpers.
– Do not use a high pressure cleaner to re-
move ic

e or snow from windows
››› page 263.
– Never use concentrated jet nozzles (“rotat-
ing jets”) ›

›› .–
Af t
er w

ashing, avoid sudden and sharp
braking. “Dry” the brakes by braking sever-
al times ››› page 179. WARNING
● Never w a

sh tyres with a concentrated jet
(“rotating nozzle”). Even at large spraying
distances and short cleaning times, damage
can occur to the tyres. This may cause an ac-
cident.
● Water, ice and salt on the brake system can
reduce br
aking effectiveness. Risk of acci-
dent. CAUTION
● Do not u se w

ater hotter than +60°C
(+140°F). This could damage the vehicle.
● To avoid damage to the vehicle, keep a suf-
ficient di
stance from sensitive materials such
as flexible hoses, plastic, soundproofing ma-
terial, etc. This also applies to bumpers pain-
ted in the colour of the bodywork. The closer
the nozzle is to the surface, the greater the
wear on the material. Factory-fitted adhesive sheets
The following indications should be taken in-
t
o ac
c

ount to avoid damaging adhesive
sheets:
● Do not use high pressure cleaners.
262

Advice
diesel engines together, it means that the oil
c an be u
sed f
or both types of engines.
We recommend that the oil change indicated
in the Maintenance Programme, be per-
formed by a technical service or specialised
workshop.
The correct oil specifications for your engine
are listed in the ›››
 page 59.
Service intervals
Service intervals can be flexible (LongLife
service) or fixed (dependent on time/dis-
tance travelled).
If the PR code that appears on the back of the
Maintenance Programme booklet is PR QI6,
this means that your vehicle has the LongLife
service program. If it lists the codes QI1, QI2,
QI3, QI4 or QI7, the interval service is de-
pendent on the time/distance travelled.
Flexible service intervals (LongLife service
intervals*)
Special oils and processes have been devel-
oped which, depending on the characteris-
tics and individual driving profiles, enable
the extension of the oil change service (Long-
Life service intervals).
Because this oil is essential for extending the
service intervals, it must only be used ob-
serving the following indications: ●
Avoid mi xing it with oil for fixed service in-
tervals.
● Only in exceptional circumstances, if the
engine oil
level is too low ››› page 277 and
LongLife oil is not available, it is permitted to
top up (once) with oil for fixed service inter-
vals ›››
 page 59 (up to a maximum of 0.5
litres).
Fixed service intervals*
If your vehicle does not have the “LongLife
service interval” or it has been disabled (by
request), you may use oils for fixed service
intervals, which also appear in
›››  page 59. In this case, your vehicle
must be serviced after a fixed interval of 1
year/15,000 km (10,000 miles)(whatever
comes first) ››› Booklet Maintenance Pro-
gramme.
● In exceptional circumstances, if the engine
oil l
evel is too low ››› page 277 and you can-
not obtain the oil specified for your vehicle,
you can add a small quantity of oil conform-
ing to the specification ACEA A2 or ACEA A3
(petrol engines) or ACEA B3 or ACEA B4 (die-
sel engines) (up to 0.5 l).
Vehicles with diesel particulate filter*
The Maintenance Programme states whether
your vehicle is fitted with a diesel particulate
filter. Only VW 507 00 engine oil, with reduced ash
formation, m

ay be used in diesel engines
equipped with particulate filter. Using other
types of oil will cause a higher soot concen-
tration and reduce the life of the DPF. There-
fore:
● Avoid mixing this oil with other engine oils.
● Only in exceptional circumstances, if the
engine oil
level is too low ››› page 277,
Checking engine oil level and you cannot ob-
tain the oil specified for your vehicle, you can
use a small quantity of oil (once) conforming
to the VW 506 00, VW 506 01, VW 505 00,
VW 505 01 or ACEA B3/ACEA B4 specification
(up to 0.5 l). Note
Before a long trip, we recommend finding an
engine oi l

that conforms to the correspond-
ing VW specifications and recommend keep-
ing it in the vehicle. This way, the correct en-
gine oil will always be available for a top-up if
needed. Warning lamp
If this warning lamp
 is
r
ed it indicates
that the engine oil pressure is too low.
If this warning symbol starts to flash, and is
accompanied by three audible warnings,
switch off the engine and check the oil level.
If necessary, add more oil ›››
page 277.
276

Checking and refilling levels
●
Never open the bonnet if
you can see or
hear steam or coolant escaping from the en-
gine compartment. Risk of scalding. Wait un-
til you can no longer see or hear escaping
steam or coolant.
● The engine compartment is a dangerous
area. B
efore carrying out any work in the en-
gine compartment, switch off the engine and
allow it to cool down. Always note the corre-
sponding warnings ››› page 273. Topping up coolant
Read the additional information carefully
› ›
›

 page 59
Top up coolant when the level is below the
MIN (minimum) mark.
Checking coolant level – Park the vehicle in a horizontal position.
– Switch the ignition off.
– Read off the coolant level on coolant ex-
pans

ion tank. When the engine is cold, the
coolant level should be between the marks.
When the engine is hot, it may be slightly
above the upper mark.
Topping up coolant – Wait for the engine to cool down. –
Cov
er the coolant expansion tank cap with
a cloth and carefully unscrew it to the left
››› .
– Top up the coolant only if there is still cool-
ant in the e
xp

ansion tank, otherwise you
could damage the engine. If there is no
coolant in the expansion tank, do not con-
tinue driving. You should obtain professio- nal assistance ››› .
– If there is still some coolant in the expan-
sion t
ank, t

op up to the upper mark.
– Top up with coolant until the level becomes
stab

le.
– Screw the cap back on correctly.
Any lo
ss of coolant fluid normally indicates a
leak in the cooling system. Take the vehicle
straight to a specialised workshop to have
the cooling system examined. If there are no
leaks in the engine cooling system, a loss of
coolant can only occur if the coolant boils
and is forced out of the system as a result of
overheating. WARNING
● The coo lin

g system is under pressure. Do
not unscrew the cap on the coolant expan-
sion tank when the engine is hot: risk of
burns!
● The antifreeze and coolant fluid can be a
health h
azard. Therefore, the antifreeze
should be stored in the original container in a safe place out of reach of children. Failure to
comp
ly

could result in poisoning.
● If working inside the engine compartment,
remember that, ev
en when the ignition is
switched off, the radiator fan may start up au-
tomatically, and therefore there is a risk of in-
jury. WARNING
If there is not enough anti-freeze in the cool-
ant sys

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 outside temperature is very low,
the cool
ant 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
Do not top up the expansion tank with cool-
ant fluid if it

is empty! Air could enter the
cooling system. In this case, stop driving.
Seek specialist assistance. Otherwise, there
is a risk of engine damage. » 279
Technical data
Advice
Operation
Emergencies
Safety

Wheels
Service life of tyres Fig. 240
Tyre tread wear indicators. Fig. 241
Diagram for changing wheels. The useful life of tyres is dependent on tyre
pr
e
s
sure, driving style and fitting.
Wear indicators
The original tyres on your vehicle have
1.6 mm high “tread wear indicators”
››› Fig. 240, running across the tread. De- pending on the make, there will be 6 to 8 of
them evenly

spaced around the tyre. Mark-
ings on the tyre sidewall (for instance the let-
ters “TWI” or other symbols) indicate the po-
sitions of the tread wear indicators. The mini-
mum tread depth required by law is 1.6 mm
(measured in the tread grooves next to the
tread wear indicators). Worn tyres must be re-
placed. Different figures may apply in export
countries ››› .
T y
r

e pressure
Incorrect tyre pressure causes premature
wear and could cause tyre blow-out. For this
reason, the tyre pressure should be checked
at least once per month ››› page 284.
Driving style
Fast cornering, heavy acceleration and hard
braking all increase tyre wear.
Changing wheels around
If the front tyres are worn considerably more
than the rear ones it is advisable to change
them around as shown ››› Fig. 241. The use-
ful life of all the tyres will then be about the
same time.
Wheel balance
The wheels on new vehicles are balanced.
However, various factors encountered in nor-
mal driving can cause them to become unbal-
anced, which results in steering vibration. Unbalanced wheels should be rebalanced, as
they otherw

ise cause excessive wear on
steering, suspension and tyres. A wheel must
also be rebalanced when a new tyre is fitted.
Incorrect wheel alignment
Incorrect running gear alignment causes ex-
cessive tyre wear, impairing the safety of the
vehicle. If tyres show excessive wear, you
should have the wheel alignment checked by
a Technical Service. WARNING
There is a serious danger of accidents if a tyre
bur s

ts during driving!
● The tyres must be replaced at the latest
when the trea
d wear indicators are worn
››› page 285. Failure to follow this instruction
could result in an accident. Worn tyres do not
grip well at high speeds on wet roads. There
is also a greater risk of “aquaplaning”.
● At continuously high speeds, a tyre with in-
sufficient
pressure flexes more. This causes it
to overheat. This can cause tread separation
and tyre blow-out. Risk of accident. Always
observe the recommended tyre pressures.
● If tyres show excessive wear, you should
have the ru
nning gear checked by a Technical
Service.
● Keep chemicals such as oil, fuel and brake
fluid awa
y from tyres.
● Damaged wheels and tyres must be re-
plac
ed immediately! » 285
Technical data
Advice
Operation
Emergencies
Safety