Engine Compartment - Skoda Octavia Owner's Manual

Automatic switching from CNG to petrol mode

Read and observe on page 187 first.
The vehicle automatically switches from natural gas to petrol, for example, if
one of the following cases occurs.
›
With an empty gas tank or not enough pressure in the tank.
›
After refuelling with natural gas.
›
At very low surrounding temperatures.
Regular gas system checks

Read and observe on page 187 first.
The following inspections must be carried out in a specialist workshop every 2
years.
›
Check the filler cap.
›
Check the condition of fuel filler tubes and the sealing ring in the fuel filler
tunes and clean sealing ring if necessary.
›
Check gas system for leaks.
The following inspections must be carried out in a specialist workshop every 4
years.
›
Check container fixing and any possible damage.
Safe natural gas

Read and observe on page 187 first.
The safety concept of the natural gas system ensures safe operation. It is
equipped with the following security features.
›
At each natural gas tank, there is a solenoid valve that closes automatically
after turning off the ignition or when running in petrol mode.
›
A thermal fuse prevents an uncontrolled rise in pressure in the gas tank, for
example, at extremely high outside temperatures.
›
A flow limiter prevents sudden emptying of the natural gas tank in case the
pressure system is damaged.
Natural gas quality and consumption

Read and observe on page 187 first.
Depending on the natural gas supplier, the natural gas quality (heating value)
may vary. The higher the calorific value of natural gas, the lower is the con-
sumption.
Within a natural gas quality grade, the heating value may vary. The engine con-
trol unit adjusts automatically to the natural gas quality.
CNG labels
Fig. 176 Position of the CNG label

Read and observe on page 187 first.
In some countries, national legislation requires that vehicles with CNG opera-
tion be identified by one of the listed labels
Position of the CNG label » Fig. 176.

Engine compartment


Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
Engine compartment overview
Radiator fan
Windscreen washer system
» Fig. 176.
191
191
192
192
189
Inspecting and replenishing
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