Fuel filler cap

The fuel filler door, located on the right rear quarter panel, is connected to your vehicle's central locking system.
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Overview
The smallest yet most expressively designed of all Volvos, the C30 has a
radical and refreshing appearance. Its unique styling creates its distinct
personality whilst closely aligning it to the all- ...
How do states use OBD II for emission inspections?
Many states connect a computer directly to a
vehicle's OBD II system. The inspector can
then read "faults." In some states, this type of
inspection has replaced the tailpipe emission
...
Three-way catalytic converter
Keep your engine properly tuned. Certain engine malfunctions, particularly
involving the electrical, fuel or distributor ignition systems, may cause unusually
high threeway catalytic converte ...
