2011 Seat Ibiza ST fuel additives

198Checking and refilling levels
Petrol
Petrol types
The correct petrol types are listed on a sticker inside the fuel
tank flap.Only unleaded petrol conforming to standard DIN EN 228 may be used for
vehicles with catalytic converters (EN = “European Standard”).
Fuel types are differentiated by the octane rating, e.g: 91, 95, 98 RON (RON
= “Research Octane Number”, unit for determining the knock resistance of
petrol). You may use petrol with a higher octane number than the one rec-
ommended for your engine. However, this has no advantage in terms of fuel
consumption and engine power.
CAUTION
● Even one tankful of leaded fuel would permanently impair the efficiency
of the catalytic converter.
● High engine speed and full throttle can damage the engine when using
petrol with an octane rating lower than the correct grade for the engine.
For the sake of the environment
Just one full tank of leaded fuel would seriously impair the efficiency of the
catalytic converter. 
Petrol additives
Petrol additives improve the quality of the petrol.
The quality of the petrol influences the performance, power and life of the
engine. For this reason, you should use good quality petrol containing addi- tives. These additives will help to prevent corrosion, keep the fuel system
clean and prevent deposits from building up in the engine.
If good quality petrol with additives is not available or engine problems oc-
cur, the required additives must be added during refuelling.

Diesel Diesel*
Diesel fuel must conform to DIN EN 590 (EN = “European Standard”). It
must have a cetane number (CN) of at least 51. The cetane number indi-
cates the ignition quality of the diesel fuel.
Notes on refuelling ⇒ page 193. 
Biodiesel*
CAUTION
● Your vehicle is not designed to use biodiesel fuel. Never, under any cir-
cumstances refuel with biodiesel. The use of biodiesel fuel could damage
the engine and the fuel system. The addition of biodiesel to diesel fuel by
the diesel manufacturer in accordance with standard EN 590 or DIN 51628
is authorised and will not cause damage to the engine or the fuel system.
● The diesel engine has been designed to be used exclusively with diesel
fuel conforming to standard EN 590. Never refuel or use petrol, kerosene,
fuel oil or any other type of fuel. If you accidentally fill up the vehicle with
the wrong type of fuel, do not start the engine. Seek assistance from speci-
alised personnel. The composition of these fuels may severely damage the
fuel system and the engine. 

199
Checking and refilling levels
Winter driving
Diesel can thicken in winter.
Winter-grade diesel
When using “summer-grade diesel fuel”, difficulties may be experienced at
sub-zero temperatures because the fuel thickens due to wax separation. For
this reason, “winter-grade diesel fuel” is available in some countries during
the cold months. It can be used at temperatures as low as -22 °C.
In countries with different climatic conditions the diesel fuel generally sold
has different temperature characteristics. Check with an Authorised Service
Centre or filling stations in the country concerned regarding the type of die-
sel fuels available.
Filter pre-heater
Your vehicle is fitted with a fuel filter glow plug system, making it well
equipped for operation in winter. This ensures that the fuel system remains
operational to approx. -24 °C, provided you use winter-grade diesel that is
safe to -15 °C.
However, if the fuel has waxed to such an extent that the engine will not
start at temperatures of under -24 °C, simply place the vehicle in a warm
place for a while.
CAUTION
Do not mix fuel additives (thinners or similar products) with diesel fuel. Working in the engine compartment
Safety instructions on working in the engine compartment
Any work carried out in the engine compartment or on the
engine must be carried out cautiously.
Before starting any work on the engine or in the engine compart-
ment:
1. Switch off the engine and remove the key from the ignition.
2. Apply the handbrake.
3. Move the gear lever to neutral or the selector lever to position P.
4. Wait for the engine to cool down.
5. Keep children away from the vehicle.
6. Raise the bonnet ⇒ page 201.
You should not do any work in the engine compartment unless you know ex-
actly how to carry out the jobs and have the correct tools! Have the work car-
ried out by a specialised workshop if you are uncertain.
All service fluids and consumables, e.g. coolant, engine oil, spark plugs
and batteries, are under constant development. SEAT provides a constant
flow of information to the Authorised Service Centres concerning modifica-
tions. For this reason, we recommend you to have service fluids and con-
sumables replaced by an Authorised Service Centre. Please observe the rel-
evant instructions ⇒ page 189. The engine compartment of the vehicle is a
hazardous area. ⇒ 
. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
L
Leather cleaning . . . . . . . . . . . . . . . . . . . . . . . . 187
Leaving Home function . . . . . . . . . . . . . . . . . . 100
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Load compartment in the luggage compart- ment
see Loading the luggage compartment . . . 16
Loading the luggage compartment . . . . . . . . . . 16
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
LPG . . . . . . . . . . . . . . . . . . . . . . . . . . 56, 147, 195
LPG system Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Filler neck adapter . . . . . . . . . . . . . . . . . . . 196
Level indicator . . . . . . . . . . . . . . . . . . . . . . . 56
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Luggage compartment . . . . . . . . . . . . . . . . . . . 127 Fastening rings . . . . . . . . . . . . . . . . . . . . . . 128
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Luggage net . . . . . . . . . . . . . . . . . . . . . . . . 129
see also Loading the luggage compartment . .16
Luggage compartment light* . . . . . . . . . . . . . 105
M
Main beam . . . . . . . . . . . . . . . . . . . . . . . . . 97, 103
Main beam headlights Indicator lamp . . . . . . . . . . . . . . . . . . . . . . . 73 Maintenance
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Maintenance and cleaning . . . . . . . . . . . . . . . 180
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . 151
Manual heating . . . . . . . . . . . . . . . . . . . . . . . . 133 controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Manual heating system Defrosting the windscreen . . . . . . . . . . . . . 133
Demisting the windscreen and side win-dows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
MFI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Mirrors Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 111
Interior mirror . . . . . . . . . . . . . . . . . . . . . . . 109
vanity mirror . . . . . . . . . . . . . . . . . . . . . . . . 106
Mobile phone . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Multifunction display . . . . . . . . . . . . . . . . . . . . . 59
N
Navigator bracket . . . . . . . . . . . . . . . . . . . . . . . 121
Number of seats . . . . . . . . . . . . . . . . . . . . . . . . . 19
O
Observations . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Octane number . . . . . . . . . . . . . . . . . . . . . . . . . 198
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . 203 One-touch opening and closing
Electric windows . . . . . . . . . . . . . . . . . . . . . . 93
Opening and locking . . . . . . . . . . . . . . . . . . . . . 90
Operation when a fault occurs Panorama/ tilting sunroof . . . . . . . . . . . . . . 96
Outside temperature display . . . . . . . . . . . . 58, 60
Overview Control lamps . . . . . . . . . . . . . . . . . . . . . . . . 63
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . 65
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . 55
Warning lamps . . . . . . . . . . . . . . . . . . . . 63, 65
P
Paintwork Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Panorama sunroof . . . . . . . . . . . . . . . . . . . . . . . 95
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Parking lights . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Passenger see Correct sitting position . . . . . . . 10, 11, 12
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Driving abroad . . . . . . . . . . . . . . . . . . . . . . 177
Petrol additives . . . . . . . . . . . . . . . . . . . . . . . . 198
Physical principles of a frontal collision . . . . . . 21
Plastic parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Plastic parts cleaning . . . . . . . . . . . . . . . . . . . . 186
Pollen filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Pollution filter . . . . . . . . . . . . . . . . . . . . . . . . . . 140
273
Index