2008-2016 Volvo Xc70 SUV Introduction -> Bi-Fuel* - introduction to vehicle gas User Manual
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Introduction -> Bi-Fuel* - introduction to vehicle gas for Your Volvo Xc70 SUV Second Generation (2008-2016)

01 Introduction  
01  
The owner's manual and the  
environment  
Laminated glass  
Bi-Fuel* - introduction to vehicle gas  
Cars with Bi-Fuel engines can be driven on  
either vehicle gas or petrol. Vehicle gas can  
be biogas or natural gas. Vehicle gas is also  
called CNG (Compressed Natural Gas).  
The glass is reinforced which pro-  
The paper pulp in a printed owner's manual  
comes from Forest Stewardship Council® cer-  
tified forests or other controlled sources.  
vides better protection against  
break-ins and improved sound insu-  
lation in the passenger compart-  
ment. The windscreen and other windows*  
have laminated glass.  
The FSC® symbol shows that the paper pulp  
in a printed owner's manual comes from  
FSC® certified forests or other controlled  
sources.  
Methane is the main component in vehicle  
gas. In natural gas, the methane content var-  
ies between 85% and 98%. In biogas, the  
content is almost 100%.  
The tanks for vehicle gas are mounted under  
the floor in the cargo area and do not affect  
the normal petrol tank.  
The system is tested in the same way as for  
petrol cars. The system is closed which  
means that leaks are avoided during filling,  
for example. The gas tanks are protected and  
are made to withstand a collision. The gas is  
lighter than air, non-toxic and has a higher  
ignition temperature than petrol and diesel.  
The risk of fire or explosions in the event of  
traffic accidents is therefore lower than with  
petrol and diesel.  
Related information  
Environmental philosophy (p. 23)  
The tank is equipped with a safety valve that  
allows the gas to evacuate from the tank in  
the event of abnormally high pressures. This  
valve ensures that the tank cannot explode.  
26  
* Option/accessory, for more information, see Introduction.  
01 Introduction  
01  
Related information  
Filling vehicle gas* (p. 308)  
WARNING  
In the event of an accident, the vehicle  
must be inspected and approved by an  
authorised Volvo workshop before it may  
be used again. Always notify the emer-  
gency services on site that the vehicle is  
equipped with a CNG-system.  
Switch for gas operation* (p. 309)  
Inspection and service of the system for  
vehicle gas* (p. 348)  
WARNING  
Smoking and naked flames are prohibited  
during refuelling, service and repair work.  
In the event of a possible fire, leave the  
vehicle immediately and stand a safe dis-  
tance away.  
Do not under any circumstances disas-  
semble or adjust the system or its compo-  
nent parts yourself. Carrying out such acts  
entails risk of serious personal injury. All  
service and repair work must therefore, for  
safety reasons, only be carried out by a  
trained mechanic - an authorized Volvo  
workshop is recommended.  
WARNING  
If you smell gas in or around the vehicle,  
switch over to petrol immediately and have  
the vehicle checked by the nearest trained  
mechanics.  
If the car is placed in a spray/paint curing  
booth with a drying temperature higher  
than 60 °C the system pressure must not  
exceed 50 bar, check that the CNG tank is  
almost empty for this.  
27  
* Option/accessory, for more information, see Introduction.  

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