2013 SKODA CITIGO maintenance

Regular gas system checks125Safe natural gas126
Natural gas quality and consumption
126
CNG labels
126WARNING■When operating a CNG-powered vehicle, the national legal requirements
must be observed.■
If a fault occurs or a leak in the natural gas system is suspected or if you
smell gas, proceed as follows: ■Stop immediately and switch off the ignition (this will close the solenoid
valves on the natural gas tanks automatically);
■ Open the doors to ventilate the vehicle sufficiently;
■ Immediately extinguish cigarettes, and remove and switch off other spark-
or fire-causing objects from the vehicle immediately. ■ Seek help from a specialist garage to correct the gas system fault.
■
The following are considered faults on the gas system:
■ Gas leakage from any part of the gas system as well as an error on the
ventilation system.
■ Continuous gas venting through the safety valves.
■ Cracks or damage that could result in a gas leak.
■ Fault in the reduction device, the pressure regulator, gas mixer or in the
injection valves, the pressure gauge, the shut-off or check valves and tank
fixtures.
■ If gas flows into the gas mixer or into the injection valves though the en-
gine is stopped.
■ Exceeding the permissible limits for contaminants in the exhaust gas.
■
Regular gas system checks must be carried out in order to operate a natural
gas vehicle. The vehicle owner is responsible for properly conducted tests.
■
The natural gas tanks must not be exposed to a heat source.
■
Always switch off the ignition in case of an accident or vehicle fire!
■
It is prohibited to drive into automatic car washes, enclosed storage places,
garages and similar areas where it is specifically forbidden to enter with CNG vehicles.

RefuellingFig. 100
Fuel filler
First read and observe the introductory information and safety warn-ings on page 123.
The gas filler tube for refuelling with natural gas is located behind the fuel filler
flap next to the petrol filler tube.
The filling couplings of the natural gas refuelling systems may differ in handling.
When refuelling with natural gas at unfamiliar refuelling systems, you should
seek help from trained fuel station staff. If unsure, have the refuelling done by
trained fuel station staff.
The operating instructions of the refuelling system must always be followed.
Open fuel filler flap
›
Open the fuel filler flap with one hand.
›
Remove the cap
1
» Fig. 100 from the gas filler tube
2
.
›
Plug the filling coupling of the refuelling system on the gas filler tube
2
.
The fuel tank is full when the compressor of the refuelling system automatically
switches off. To stop the refuelling operation prematurely, press the “Stop ” but-
ton of the refuelling system.
Closing the filler cap
›
Check that the sealing ring
3
» Fig. 100 has remained in the gas filler tube. If it
has slipped onto the filling coupling, reinsert it into the gas filler tube.
›
Plug the cap
1
onto the gas filler tube.
›
Close the filler cap. 
124General Maintenance

Safe natural gasFirst read and observe the introductory information and safety warn-ings
on page 123.
The safety concept of the natural gas system ensures safe operation. It is equip-
ped with the following security features.
› At each natural gas tank, there is a solenoid valve that closes automatically af-
ter turning off the ignition or when running in petrol mode.
› A thermal fuse prevents uncontrolled rise in pressure in the natural gas tank in
case of fire.
› A flow limiter prevents sudden emptying of the natural gas tank in case the
pressure system is damaged.
› All the attachment points and materials are designed for maximum safety.

Natural gas quality and consumption
First read and observe the introductory information and safety warn-ings
on page 123.
Natural gas is divided into quality groups H-gas and L-gas. The two types of gas
are subdivided according to their calorific value and nitrogen and carbon dioxide
contents. H-gas has a higher calorific value and lower nitrogen or carbon dioxide
content than L-gas.
The higher the calorific value of natural gas, the lower is the consumption. How-
ever, the calorific value and the nitrogen and carbon dioxide contents can vary
within a quality group. Therefore, the consumption of the vehicle may even vary
when driving with only one natural gas quality (either only H-gas or L-gas).
The engine control of your vehicle automatically adjusts to the different natural
gas qualities. Therefore both natural gas qualities can be mixed in the fuel tank. It is therefore not necessary to run the natural gas tank completely empty to fill up
another quality.

CNG labelsFig. 101
CNG label
Fig. 102
Position of the CNG label
First read and observe the introductory information and safety warn-
ings on page 123.
In some countries, national legislation requires that vehicles with CNG operation
be identified by one of the listed labels » Fig. 101.
Position of the CNG label » Fig. 102.

126General Maintenance

WARNING■Read and observe the information and warning instructions on the fluid con-
tainers.■
Keep fluids in their original containers and keep securely out of the reach of
children!
■
If you intend to work underneath the vehicle, you must secure the vehicle
from rolling away and support it with suitable supporting blocks; the car jack
is not sufficient – risk of injury!
■
Never cover the engine with additional insulation material (e.g. with a cover)
– risk of fire!
■
The bonnet must always be properly closed when driving. Therefore, the
lock must always be checked after closing the bonnet in order to ensure that
it has engaged properly.
■
If you notice that the lock is not properly engaged while driving, stop the ve-
hicle immediately and close the bonnet – risk of accident!
CAUTION
■ Always top up using the correct specification of fluids. This may result in major
operating problems and also vehicle damage!■
Never open the bonnet using the locking lever.
For the sake of the environment
In view of the requirements for the environmentally friendly disposal of fluids and the special tools and knowledge required for such work, we recommend that flu-
ids be changed by a specialist garage.
Note
■ Please consult a specialist garage for any questions relating to fluids.■Fluids with the correct specifications can be purchased from ŠKODA Original Ac-
cessories.

Opening and closing the bonnetFig. 103
Bonnet release lever
Fig. 104
Securing the bonnet
First read and observe the introductory information and safety warn-
ings
on page 127.
Opening
›
Pull the release lever under the dash panel in the direction of the arrow
1
» Fig. 103 .
Before opening the bonnet, ensure that the arms of the windscreen wipers are
correctly in place against the windscreen otherwise the paintwork could be dam- aged.
›
Press the release lever in the direction of the arrow
2
» Fig. 103 and the bon-
net is unlocked.
›
Grab hold of the bonnet and lift. 
128General Maintenance

Under exceptional circumstances, methylated spirits can also be used if no screen
cleaner with antifreeze is available. The concentration of methylated spirits must
not be more than 15 %. The freeze protection at this concentration is sufficient
only to -5 °C.
CAUTION
■ Under no circumstances must radiator antifreeze or other additives be added to
the windscreen washer fluid.■
Do not remove the filter from the windscreen washer fluid reservoir when refill-
ing, as this may cause contamination of the liquid transportation system, leading
in turn to a windscreen washer system malfunction.

Engine oil
 Introduction
This chapter contains information on the following subjects:
Specifications and capacity
130
Checking the oil level
131
Replenishing
131
Changing
131
The engine has been factory-filled with a high-grade oil that can be use through-
out the year - except in extreme climate zones.
The engine oils are undergoing continuous further development. Thus the infor-
mation stated in this Owner's Manual is only correct at the time of publication.
ŠKODA Service Partners are informed about the latest changes by the manufac-
turer. We therefore recommend that the oil change be completed by a ŠKODA
Service Partner.
The specifications (VW standards) stated in the following can be indicated sepa-
rately or together with other specifications on the bottle.
The oil capacities include oil filter change. Check the oil level when filling; do not
over fill. The oil level must be between the markings » page 131.
WARNING■
The 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 127.■
Do not continue your journey if for some reason it is not possible  to top
up the engine oil under the prevailing conditions! Switch off the engine and
seek assistance from a specialist garage.
■
If the oil level is above level
A
» Fig. 107 on page 131,  do not continue to
drive! Switch off the engine and seek assistance from a specialist garage.
CAUTION
Do not pour any additives into the engine oil – risk of serious damage to the en-
gine parts!
Note
■ Before a long drive we recommend that you purchase and carry with you engine
oil which complies with the specification for your vehicle.■
We recommend that you use oils from ŠKODA Original Accessories.
■
If your skin has come into contact with oil, it must be washed thoroughly.

Specifications and capacity
First read and observe the introductory information and safety warn-
ings
on page 130.
Specifications and capacity (in l)
EngineSpecificationFilling level1.0 l/44 kWVW 502 00, VW 504 00 a)3.41.0 l/55 kWVW 502 00, VW 504 00a)3.41.0 l/50 kW - CNGVW 502 003.4a)
Optional engine oil specifications.
Note
■
Before a long drive we recommend that you purchase and carry with you engine
oil which complies with the specification for your vehicle.■
We recommend that you use oils from ŠKODA Original Accessories.

130General Maintenance

Coolant
Introduction
This chapter contains information on the following subjects:
Capacity
132
Checking the coolant level
132
Replenishing
133
The coolant consists of water with coolant additive. This mixture guarantees anti- freeze protection, protects the cooling/heater system against corrosion and pre-
vents lime formation.
Vehicles exported to countries with a mild climate are already factory-filled with
a coolant which offers antifreeze protection down to about -25 ℃. In these coun-
tries, the concentration of coolant additive should be at least 40%.
Vehicles exported to countries with a cold climate are already factory-filled with a
coolant which offers antifreeze protection down to about -35 °C. In these coun-
tries, the concentration of coolant additive should be at least 50%.
If a higher concentration of antifreeze is required for climatic reasons, the con-centration of coolant additive can be increased up to a maximum of 60% (anti-
freeze protection down to approx. -40 °C).
When refilling, only use the antifreeze with the title given on the coolant expan-
sion tank » Fig. 108 on page 132.
WARNING■
The 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 127.■
Do not continue your journey if for some reason it is not possible  to top
up the coolant under the prevailing conditions! Switch off the engine and seek
assistance from a specialist garage.
CAUTION
■ The concentration of coolant additive in the coolant must never be under 40%.■Over 60% of coolant additive in the coolant reduces the antifreeze protection
and cooling effect.■ A coolant additive that does not comply with the correct specifications can sig-
nificantly reduce the corrosion protection.■
Any faults resulting from corrosion may cause a loss of coolant and can conse-
quently result in major engine damage!
■
Do not fill the coolant above the mark
A
» Fig. 108 on page 132.
■
If a fault causes the engine to overheat, we recommend visiting a specialist ga-
rage, as otherwise serious engine damage may occur.

Capacity
First read and observe the introductory information and safety warn-
ings
on page 132.
Coolant capacity (in litres)
Petrol enginesFilling level1.0 ltr./44 kW MPI4.21.0 ltr./55 kW MPI4.21.0 l/50 kW - CNG4.2

Checking the coolant level
Fig. 108
Engine compartment: Coolant
expansion reservoir
First read and observe the introductory information and safety warn-
ings on page 132.
The coolant expansion bottle is located in the engine compartment.
›
Switch off the engine.
›
Open the bonnet » page 128. 
132General Maintenance

A slight drop in the fluid level results when driving due to normal wear-and-tear
and automatic adjustment of the brake pads.
There may be an indication of a leak in the brake system, however, if the fluid lev-
el drops significantly within a short time or if it drops below the “MIN” marking.
If the brake fluid level is too low, this is shown by the indicator light  » page 16 ,
 Braking system lighting up in the instrument cluster.
Changing
First read and observe the introductory information and safety warn-ings
on page 133.
Brake fluid absorbs moisture. Over time it therefore absorbs moisture from the
environment.
Excessive water in the brake fluid may be the cause of corrosion in the brake sys-
tem.
The water content lowers the boiling point of the brake fluid.
The brake fluid must comply with the following standards or specifications: › VW 50114;
› FMVSS 116 DOT4.

Vehicle battery

Introduction
This chapter contains information on the following subjects:
Checking the battery electrolyte level
135
Operation in winter
136
Charging
136
Replace
137
Disconnecting and reconnecting
137
Automatic load deactivation
137Warning symbols on the vehicle batterySymbolImportanceAlways wear eye protection.Battery acid is severely caustic. Always wear gloves and eye protec-
tion.Keep fire, sparks, open flames and lit cigarettes well clear of the ve-
hicle battery.When charging the vehicle battery, a highly explosive gas mixture is
produced.Keep children away from the vehicle battery.WARNINGThere is risk of injuries, poisoning, chemical burns, explosions or fire when
working on the battery and on the electrical system. It is essential to comply
with the general applicable safety rules as well as the warning instructions
outlined below.■
Keep children away from the vehicle battery.
■
Do not tilt the battery otherwise battery electrolyte may flow out of the bat-
tery vent openings. Protect your eyes by wearing safety goggles or a face
shield – risk of blindness!
■
Always wear protective gloves, eye and skin protection when handling the
vehicle battery.
■
The battery acid is strongly corrosive and must, therefore, be handled with
the greatest of care.
■
Corrosive fumes in the air irritate the air passages and lead to conjunctivitis
and inflammation of the air passages in the lungs.
■
Battery acid corrodes dental enamel and, if it comes into contact with the
skin, causes deep wounds that take a long time to heal. Repeated contact
with diluted acids causes skin diseases (inflammations, ulcers, skin cracks).
■
If any battery acid comes into contact with your eyes, rinse the affected eye
immediately with clean water for several minutes and consult a doctor imme-
diately!
■
Splashes of acid on your skin or clothes should be neutralised as soon as
possible using soap suds and then rinsed with plenty of water. If you swallow
battery acid, consult a doctor immediately! 
134General Maintenance

Air bubbles can influence the colour of the indicator. For this reason carefully
knock on the indicator before carrying out the check.
› Black colour – electrolyte level is correct.
› Colourless or light yellow colour – electrolyte level too low, the battery must be
replaced.
Vehicles with a START-STOP system are fitted with a battery control unit for checking the energy level for the recurring engine start.
We recommend that you have the acid level checked regularly by a specialist ga-
rage, especially in the following cases.
› High external temperatures.
› Longer day trips.
› After each charge.
CAUTION
For technical reasons, on vehicles with the description “AGM”, the electrolyte lev-
el cannot be checked.
Note
The battery acid level is also checked regularly by a specialist garage as part of
the inspection service.
Operation in winter
First read and observe the introductory information and safety warn-
ings
on page 134.
The vehicle battery only has a proportion of the starting power in lower tempera-
tures. A discharged vehicle battery may already freeze at temperatures just be-
low 0 °C .
We therefore recommend that you have the battery checked and, if necessary, re-
charged by a specialist garage before the start of the winter.

Charging
First read and observe the introductory information and safety warn-ings
on page 134.
A properly charged vehicle battery is essential for reliably starting the engine.
› Switch off the ignition and all of the electrical components.›Only when performing a “quick-charge”, disconnect both battery cables (first
“negative”, then “positive”).›
Attach the terminal clamps of the charger to the battery terminals (red = “posi- tive”, black = “negative”).
›
Plug the mains cable of the charger into the power socket and switch on thedevice.
›
After charging has been successful: Switch off the charger and remove themains cable from the power socket.
›
Only then disconnect the charger's terminal clamps.
›
Reconnect the cables to the battery (first “positive”, then “negative”).
It is not necessary to disconnect the cables of the battery if you recharge the ve-
hicle battery using low amperages (for example from a mini-charger). Refer to the
instructions of the charger manufacturer .
A charging current of 0.1 multiple of the total vehicle battery capacity (or lower) must be used until full charging is achieved.
It is necessary to disconnect both cables before charging the battery with high
amperages, known as “ rapid charging”.
The vent plugs of the vehicle battery should not be opened for charging.
WARNING“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
CAUTION
On vehicles with the START/STOP system, the pole terminal of the charger must
not be connected directly to the negative terminal of the vehicle battery, but only
to the engine earth » page 152, Jump-starting in vehicles with the START-STOP
system .
Note
We therefore recommend that vehicle batteries be rapid charged by a specialist
garage.
136General Maintenance

Wheels
Tyres and wheel rims
Introduction
This chapter contains information on the following subjects:
Service life of tyres
139
New tyres
140
Unidirectional tyres
141
Spare wheel
141
Full wheel trim
142
Wheel bolts
142
Wheel bolts
143WARNING■ The national legal regulations must be observed for the use of tyres.■Observe the national legal regulations relating to the use of snow chains
and the maximum vehicle speed with snow chains.WARNINGThe following instructions for the use of tyres must be observed.■For the first 500 km, new tyres do not yet provide optimum grip, and appro-
priate care should therefore be taken when driving – risk of accident!■
Only use radial tyres of the same type, size (rolling circumference) and tread
pattern on all four wheels.
■
For reasons of driving safety, do not replace tyres individually.
■
Never exceed the maximum permissible load bearing capacity for fitted
tyres – risk of accident!
■
Never exceed the maximum permissible speed for fitted tyres – risk of acci-
dent!
■
Incorrect wheel alignment at the front or rear impairs handling – risk of acci-
dent!
WARNING (Continued)■ Unusual vibrations or pulling of the vehicle to one side could be a sign of
tyre damage. If there is any doubt that a wheel is damaged, immediately re-
duce your speed and stop! If no external damage is evident, drive slowly and
carefully to the nearest specialist garage to have the vehicle checked.■
Only use tyres or wheel rims that have been approved by ŠKODA for your
model of vehicle. Failure to observe this instruction may impair the road safety
of your vehicle – risk of accident!
WARNINGObserve the following information regarding tyre damage and wear.■Never use tyres if you do not know anything about the condition and age.■
Never drive with damaged tyres – risk of accident!
■
Immediately replace damaged wheel rims or tyres.
■
You must have your tyres replaced with new ones at the latest when the
wear indicators have been worn down.
■
Worn tyres impair necessary adhesion to the road surface, particularly at
high speeds on wet roads. This could lead to “aquaplaning” (uncontrolled ve- hicle movement – “swimming” on a wet road surface).
WARNINGObserve the following information regarding the tyre inflation pressure.■The tyre control display does not absolve the driver of the responsibility to
ensure the correct tyre inflation pressure. Check the tyre inflation pressure at
regular intervals.■
Insufficient or excessive inflation pressure impairs handling – risk of acci-
dent!
■
If the inflation pressure is too low, the tyre will have to overcome a higher
rolling resistance. This will cause a significant increase in the temperature of
the tyre, especially at higher speeds. This can result in tread separation and a
tyre blowout. 
138General Maintenance