Catalytic Converter - Volvo V70 Owner's Manual

Catalytic converter

The purpose of the catalytic converter is to
purify exhaust. It is located in the exhaust flow
near the engine to quickly reach operating
temperature.
The catalytic converter consists of a monolith
(ceramic or metal) with channels. The channel
walls are coated with a thin layer of platinum,
rhodium and palladium. The metals act as
catalysts, i.e. they accelerate the chemical
process without being used up themselves.
Lambda-sond TM Heated oxygen sensor
The lambda sensor is part of a management
system intended to reduce emissions and
improve fuel economy. An oxygen sensor
monitors the oxygen content of the exhaust
gases leaving the engine. These values are fed
into an electronic system that continuously
controls the injectors. The ratio of air to fuel is
continuously adjusted. These adjustments create
optimal conditions for efficient combustion, and
together with the three-way catalytic converter
reduce harmful emissions (hydrocarbons,
carbon monoxide and nitrous oxides).
2501524m
Catalytic converter and suspension
Wheel suspension, springing
Front end
McPherson type spring strut. Unitary construc-
tion of shock absorbers and spring. Rack and
pinion steering. Safety type steering shaft. The
values apply to an unladen car with full tank,
coolant and spare wheel.
Rear suspension
Independent suspension with individually
sprung wheels with shock absorbers. The
suspension consists of rear-facing trailer arms,
upper and lower control arms, track rods and
anti-roll bar.
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