2013 Seat Altea XL fuel additives

232Checking 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.
The correct fuel type for your vehicle is given in the technical table for the
engine, in the Technical Data section.
CAUTION
● Petrol with standard EN 228 may be mixed with small quantities of etha-
nol. However, bioethanol fuels available at commercial establishments with
reference E50 or E85, which contain a high percentage of ethanol, may not
be used, as they will damage the fuel system.
● 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 226. 

233
Checking and refilling levels
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. 
Winter driving
Diesel can thicken in winter.
Winter-grade diesel
When using “summer-grade diesel fuel”, difficulties may be experienced at
temperatures below 0 °C because the fuel thickens due to wax separation.
Therefore, “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 the Technical Services
or filling stations in the country concerned regarding the type of diesel 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 which 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 gearbox lever to neutral or the selector lever to posi- tion P.
4. Wait for the engine to cool down.
5. Keep children away from the vehicle.
6. Raise the bonnet ⇒ page 235. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Multifunction display . . . . . . . . . . . . . . . . . . . . . 63
N
Number of seats . . . . . . . . . . . . . . . . . . . . . . . . . 19
O
Observations . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Octane number . . . . . . . . . . . . . . . . . . . . . . . . . 232
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . 237
One-touch opening and closing Electric windows . . . . . . . . . . . . . . . . . . . . . 111
Opening and locking . . . . . . . . . . . . . . . . . . . . 108
Outside temperature indicator . . . . . . . . . . . . . 65
Overview control lamps . . . . . . . . . . . . . . . . . . . . . . . . 79
Control lamps . . . . . . . . . . . . . . . . . . . . . . . . 77
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . 57
warning lamps . . . . . . . . . . . . . . . . . . . . . . . 79
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . 77 P
Paintwork Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Parking lights . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Parking system . . . . . . . . . . . . . . . . . . . . . . . . . 187
Parking System Plus . . . . . . . . . . . . . . . . . . . . . 188
Passenger see Correct sitting position . . . . . . . 10, 11, 12
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232 Driving abroad . . . . . . . . . . . . . . . . . . . . . . 206
Petrol additives . . . . . . . . . . . . . . . . . . . . . . . . 232
Physical principles of a frontal collision . . . . . . 21
Plastic parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Plastic parts cleaning . . . . . . . . . . . . . . . . . . . . 222
Pollen filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Pollution filter . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Power steering . . . . . . . . . . . . . . . . . . . . . . . . . 200
Products for vehicle maintenance . . . . . . . . . . 212
RRadio frequency remote control . . . . . . . . . . . 104 Changing the battery . . . . . . . . . . . . . . . . . 105
Radio navigation steering wheel controls Audio version . . . . . . . . . . . . . . . . . . . . . . . . 95
Audio + telephone version . . . . . . . . . . . . . . 95
Rain sensor* . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Rear drink holder* Armrest* . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Rear fog light
control lamp . . . . . . . . . . . . . . . . . . . . . 82, 115
Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 115
Rear interior lights . . . . . . . . . . . . . . . . . . . . . . 125
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 88
Emergency opening . . . . . . . . . . . . . . . . . . 109
Rear reading lights . . . . . . . . . . . . . . . . . . . . . . 125
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Rear shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Rear window automatic wiper/washer . . . . . . 130
Rear window wiper . . . . . . . . . . . . . . . . . . . . . . 130
Recommended gear display . . . . . . . . . . . . . . . 62
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Registration light . . . . . . . . . . . . . . . . . . . . . . . 281
Remote control key Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Synchronising . . . . . . . . . . . . . . . . . . . . . . . 105
Removing and fitting the wheel . . . . . . . . . . . 265
Repairs Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Replacement keys . . . . . . . . . . . . . . . . . . . . . . 103
Replacement of parts . . . . . . . . . . . . . . . . . . . . 224
Rev counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Reverse gear Manual gearbox . . . . . . . . . . . . . . . . . . . . . 179
Roll-back function Sliding/tilting sunroof . . . . . . . . . . . . . . . . 114
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Roof aerial* . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Roof rack* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Roof storage compartment* . . . . . . . . . . . . . . 143
310 Index