Vehicle Running On Cng (Compressed Natural Gas) - Skoda 2012 Citigo Owner's Manual

Vehicle running on CNG (compressed natural gas)

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Introduction
This chapter contains information on the following subjects:
Refuelling
Automatically switching over from CNG mode to petrol mode
Natural gas as fuel
Regular inspections of gas systems
Safe natural gas
Natural gas quality and consumption
WARNING
When operating a CNG-powered vehicle, the national legal requirements
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must be observed.
If a fault occurs or a leak in the natural gas system is suspected or if you
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smell gas, proceed as follows:
Stop immediately and switch off the ignition (this will close the solenoid
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valves on the natural gas tanks automatically);
Open the doors to ventilate the vehicle sufficiently;
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Immediately extinguish cigarettes, and remove and switch off other spark-
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or fire-causing objects from the vehicle immediately.
Seek help from a ŠKODA specialist garage to correct the fault on the gas
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system.
The following is considered faults on the gas system:
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Gas leakage from any part of the gas system as well as an error on the
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ventilation system.
Continuous gas venting through the safety valves.
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Cracks or damage that could result in a gas leak.
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Fault in the reduction device, the pressure regulator, gas mixer or in the
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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-
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gine is stopped.
Exceeding the permissible limits for contaminants in the exhaust gas.
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106
General Maintenance
WARNING (Continued)
A natural gas-powered vehicle must be shut down if no periodic testing of
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pressure accumulators is performed or an approved component has been re-
placed by a non-approved component. The vehicle owner is responsible for
properly conducted tests.
The natural gas tanks must not be exposed to a heat source.
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106
Always switch off the ignition in case of an accident or vehicle fire!
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107
It is prohibited to drive into enclosed storage places, garages and similar
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107
areas where it is specifically not allowed to enter with CNG-powered vehicles.
108
108
108 Refuelling
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First read and observe the introductory information and safety warn-
ings on page 106.
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
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Open the fuel filler flap with one hand.
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Remove the cap » Fig. 96
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Plug the filling coupling of the refuelling system on the gas filler tube
Fig. 96
Fuel filler
from the gas filler tube .
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