engine overheat SKODA OCTAVIA 2015 3.G / (5E) Owner's Manual

Revolutions counterRead and observe
on page 28 first.
The tachometer
1
» Fig. 22 on page 28 shows the actual engine speed per
minute.
The beginning of the red scale range of the tachometer indicates the maxi-
mum permitted engine speed of a driven-in and operating warm engine.
You should shift into the next highest gear before the red scale of the revolu- tion counter is reached, or select mode D on the automatic gearbox.
The gear recommendation is important to note in order to maintain the opti-
mum engine speed » page 41.
CAUTION
The pointer of the tachometer must reach the red area for only a short time -
there is a risk of engine damage!
Display
Fig. 23
Display types
Read and observe on page 28 first.
Display types » Fig. 23
MAXI DOT display.
Segment display
The following information will be displayed.
▶ Exterior temperature information
▶ Distance travelled » page 30
▶ Time » page 31
▶ Warning lights » page 31
▶ Information system data » page 40
NoteDepending on vehicle equipment, the MAXI DOT display can be either mono-
chromatic “(black and white)” or colour.
Coolant temperature gauge
Fig. 24
Coolant temperature gauge
Read and observe on page 28 first.
The display » Fig. 24 provides information on the engine coolant temperature.
The fuel gauge only works if the ignition is switched on.
Cold range
If the pointer is still in the left area of the scale, this indicates that the engine has not yet reached its operating temperature. Avoid high speeds, full throttle
and high engine loads. This prevents possible damage to the engine.
The operating range
The engine has reached its operating temperature as soon as the pointer
moves into the middle of the scale
A
» Fig. 24 .
High temperature range
If the pointer reaches the red area of the scale, the coolant temperature is too
high.
CAUTION
■ Additional headlights and other attached components in front of the air inlet
impair the cooling efficiency of the coolant.■
Never cover the radiator - there is a risk of the engine overheating.
29Instruments and warning lights

 Brake pedal (automatic transmission)Read and observe
on page 32 first.
 illuminates – apply the brake.
 Natural gas operation
Read and observe
on page 32 first.
 illuminates - the vehicle is running on natural gas.
 Main beam
Read and observe
on page 32 first.
 illuminates – the main beam or the headlight flasher is switched on.
 Automatic transmission
Read and observe
on page 32 first.
Gearbox overheated
The warning light  is only shown in the MAXI DOTdisplay.

 Illumi-
nates
Gearbox overheated. Stop! Log book!STOP VEHICLE GEARBOX OVERHEAT  Illumi-
nates
Gearbox overheated.GEARBOX OVERHEATED
▶ 
do not continue to drive! Stop the vehicle and turn off the engine.
You can continue your journey as soon as the warning light disappears.
If the warning light does not go out, do not continue driving. Seek help from a specialist garage.
Transmission problem
The warning light  is only shown in the MAXI DOTdisplay.

 Illumi-
nates
Gearbox faulty. Workshop!GEARBOX FAULTY WORKSHOP  Illumi-
nates
Error: gearbox. Reverse gear not available.GEARBOX ERROR REV_ GEAR NOT AVAIL  Illumi-
nates
Error: gearboxGEARBOX ERROR
Seek help from a specialist garage.
  Rear seat belt warning light
Read and observe
on page 32 first.
 illuminates – a rear seat belt is not fastened.
 illuminates – a rear seat belt is fastened.
When the seat belt is fastened/unfastened, the particular light lights up briefly
and indicates the current belt status!
 Generator
Read and observe
on page 32 first.
 illuminates – the battery is not being charged whilst the engine is running.
Seek help from a specialist garage.
CAUTION
If in addition to the light  the light  lights up while driving,  stop driving -
risk of engine damage! Switch off the engine and seek assistance from a spe-
cialist garage.
 Coolant
Read and observe
on page 32 first.
Coolant level too low
  Illumi-
nates
Check coolant! Log book!ENGINE COOLANT PLEASE CHECK
▶ Stop the vehicle, switch off the engine, and check the coolant level
» page 199 , Checking the coolant level . 
37Instruments and warning lights

If the coolant level is within the specified range and the warning light  illumi-
nated again after ignition on, then there may be a malfunction of the cooling
fan.
▶ Switch off the ignition.
▶ Check the fuse for the radiator fan, replace if necessary.
If the coolant level and the fan fuse are OK and the warning light 
illuminates
again after ignition on 
do not continue to drive!
Seek help from a specialist garage.
Coolant temperature too high  Illumi-
nates
Engine overheat. Stop! Owner's Manual!ENGINE OVERHEAT STOP
▶ Stop the vehicle and turn off the engine.
▶ Continue your journey only after the warning light  has disappeared.
 Engine oil pressure too low
Read and observe
on page 32 first.

 flashes – the engine oil pressure is too low.
Oil pressure: stop! Owner's Manual!STOP VEHICLE OIL PRESSURE›
Stop the vehicle, switch off the engine, and check the engine oil level.
Even if the oil level is correct, 
do not drive any further if the warning light is
flashing. Also do not leave the engine running at an idling speed.
Seek help from a specialist garage.
CAUTION
If for some reason it is not possible to top up the engine oil under the current
circumstances,  do not continue driving! Switch off the engine and seek as-
sistance from a specialist garage.
 Engine oil level
Read and observe
on page 32 first.
Engine oil level too low
  Illumi-
nates
Oil level: add oil!ADD OIL▶ Stop the vehicle, switch off the engine, and check the engine oil level, top up
if necessary.
The warning light will go out if the bonnet is left open for more than 30 sec-
onds. If no engine oil has been replenished, the warning light will come on
again after driving about 100 km.
Engine oil level too high  Illumi-
nates
Reduce oil level!OIL LEVEL TOO HIGH
▶ Stop the vehicle, switch off the engine, and check the engine oil level.
In the event of a high oil level, seek assistance from a specialist garage.
Fault on the engine oil level sensor
  Illumi-
nates
Oil sensor: workshop!OIL SENSOR WORKSHOP
Seek help from a specialist garage.
CAUTION
If for some reason it is not possible to top up the engine oil under the current
circumstances,  do not continue driving! Switch off the engine and seek as-
sistance from a specialist garage.
 Lamp failure
Read and observe
on page 32 first.

 illuminates – one of the lamps is defective. A message will appear con-
cerning the affected lamp.
An example message in the display of the instrument cluster
Check right dipped headlight beam!DIPPED HEADLIGHT CHECK RIGHT
 Diesel particulate filter (diesel engine)
Read and observe
on page 32 first.
The diesel particulate filter separates the soot particles from the exhaust. The soot particles collect in the diesel particulate filter where they are burnt on a
regular basis.

 illuminates – the filter is clogged with soot. 
38Using the system

Manually deactivating/activating the systemFig. 146
Button for the START-STOP sys-
tem
Deactivating/activating
›
Press the symbol button 
» Fig. 146 .
When system is deactivated, the warning light in the button illuminates.
If the system is turned off, it will be automatically reactivated after turning the
ignition off and on.
Note
■ If the system is deactivated when the engine is turned off automatically,
then the automatic start process takes place.■
Selecting the driving mode Eco when the system is deactivated will automat-
ically activate the system » page 157, Selection of the driving mode (Driving
Mode Selection) .
Information messages
The information messages are shown in the instrument cluster display.
Start the engine manually!START MANUALLY
If for example the driver's seat belt is stored, the engine must be started man-
ually.
On vehicles with the starter button, the ignition is turned off by the first press
of the starter button; the start process is only initiated when the button is
pressed for the second time.
Error: start-stop systemSTART STOP ERROR
A system error is present. Seek help from a specialist garage.
Brakes and parking
 Introduction
This chapter contains information on the following subjects:
Information on braking
126
Handbrake
127
Parking
128WARNING■ Greater physical effort for braking is required when the engine is switch-
ed off – risk of accident!■
During the braking procedure on a vehicle with manual transmission,
when the vehicle is in gear and at low revs, press the clutch pedal. Other-
wise, the functionality of the brake system may be impaired – risk of acci-
dent!
■
When leaving the vehicle never leave persons leave unattended in the
vehicle who could release the brake. The vehicle might then move off – risk of accident!
■
Observe the recommendations on the new brake pads » page 132.
CAUTION
Never let the brakes slip with light pressure on the pedal if braking is not nec-
essary. This causes the brakes to overheat and can also result in a longer brak-
ing distance and excessive wear.
Information on braking
Read and observe
and on page 126 first.
Wear-and-tear
The wear of the brake pads is dependent on the operating conditions and driv-
ing style.
The brake pads wear more quickly if a lot of journeys are completed in towns
and over short distances or if a very sporty style of driving is adopted.
If operated under severe conditions , the thickness of the brake pads must be
checked by a specialist garage between service appointments as well. 
126Driving

WARNINGPlease note that the handbrake must be fully released. A handbrake which
is only partially released can result in the rear brakes overheating. This can
have a negative effect on the operation of the brake system – risk of acci-
dent!
Parking
Read and observe
and on page 126 first.
When stopping and parking, look for a place with a suitable surface » .
Only carry out the activities while parking in the specified order.
›
Bring the vehicle to a stop and depress the brake pedal.
›
Firmly apply the handbrake.
›
On vehicles with automatic transmission place the selector lever in the P po-
sition.
›
Switch off the engine.
›
For vehicles with Manual transmission , select 1st gear or Reverse gear R .
›
Release the brake pedal.
WARNINGThe parts of the exhaust system can become very hot. Therefore, never
stop the vehicle at places where the underside of your vehicle can come in-
to contact with flammable materials such as dry grass, undergrowth,
leaves, spilled fuel or such like. - Risk of fire and serious injury can occur!
Manual shifting of gears and pedals
 Introduction
This chapter contains information on the following subjects:
Manual gear changing
128
Pedals
128Manual gear changingFig. 148
Gearshift pattern of 5-gear or 6-
gear manual gearbox
The shift pattern for the individual gear positions is shown on the gear lever » Fig. 148 .
The gearshift indicator must be observed when changing gear » page 41.
Always depress the clutch pedal all the way down. This prevents uneven wear
on the clutch.
Reverse gear is engaged
›
Stop the vehicle.
›
The clutch pedal is fully depressed.
›
Move the shift lever to the idle position switch and press down.
›
Move the shift lever fully to the left and then forward into R position
» Fig. 148 .
The reversing lights will come on once reverse gear is engaged, provided the
ignition is on.
WARNINGNever engage reverse gear when driving – risk of accident!
CAUTION
■ If not in the process of changing gear, do not leave your hand on the gear-
shift lever while driving. The pressure from the hand can cause the gearshift
mechanism to wear excessively.■
When stopping on a slope, never try to hold the vehicle using the clutch and
the accelerator pedal – this may lead to damage to the clutch.
Pedals
The operation of the pedals must not be hindered under any circumstances! 
128Driving

The coolant additive percentage in the coolant must be at least 40%.
The coolant additive may be increased to a maximum of 60%.
The correct mixing ratio of water and coolant additive is to be checked if nec-
essary by a specialist garage or is to be restored if necessary.
The description of the coolant is shown in the coolant expansion reservoir
» Fig. 207 on page 199 .WARNINGThe engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en-
gine compartment » page 194.■
The coolant is harmful to health.
■
Avoid contact with the coolant.
■
Coolant vapours are harmful to health.
■
Never open the end cover of the coolant expansion reservoir while the
engine is still warm. The cooling system is pressurized!
■
When opening the end cover of the coolant expansion reservoir, cover it
with a cloth to protect your face, hands and arms from hot steam or hot
coolant.
■
If any coolant splashes into your eyes, immediately rinse out your eyes
with clear water and contact a doctor as soon as possible.
■
Always keep the coolant in the original container, safe from people who
are not completely independent, especially children - there is a danger of
poisoning!
■
If coolant is swallowed, consult a doctor immediately.
■
Never spill operating fluids over the hot engine - risk of fire.
CAUTION
■ If for some reason it is not possible to top up the coolant under the current
circumstances,  do not continue driving! Switch off the engine and seek as-
sistance from a specialist garage.■
If the expansion tank is empty, do not top up with coolant. The system could
aerate - risk of engine damage, 
do not continue driving! Switch off the en-
gine and seek assistance from a specialist garage.
■
The amount of coolant additive in the coolant must never be allowed to be
less than 40 %.
■
Over 60 % of coolant additive in the coolant reduces the antifreeze protec-
tion and coolant effectiveness.
■
A coolant additive that does not comply with the correct specification can
significantly reduce the corrosion protection of the cooling system.
■ Any faults resulting from corrosion may cause a loss of coolant and can con-
sequently result in major engine damage.■
Do not fill the coolant above the mark
A
» Fig. 207 on page 199 .
■
If an error occurs, leading to the engine overheating, the help of a professio-
nal garage is to be sought - there is a risk of serious engine damage occurring.
■
Additional headlights and other attached components in front of the air inlet
impair the cooling efficiency of the coolant.
■
Never cover the radiator - there is a risk of the engine overheating.
Note
On vehicles that are fitted with an auxiliary heater (auxiliary heating and venti-
lation), the coolant capacity is approx. 1 l larger.
Checking the coolant level
Fig. 207
Coolant expansion reservoir
Read and observe and on page 199 first.
The coolant expansion bottle is located in the engine compartment.
Coolant expansion reservoir » Fig. 207
Mark for the maximum permissible coolant level
Mark for the lowest permissible coolant level
The coolant level should be kept between the marks
A
and
B
.
The coolant can be checked and topped up, if the following conditions are sat-
isfied.
The vehicle is on a horizontal surface.
The engine is turned off.
The engine is not heated.
The bonnet is open. 
AB199Inspecting and replenishing