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1994 Volvo 850
Air pump system (B 5254 S)
During cold starts, an electrical air pump is activated which directs air to the exhaust channels. This
initiates a secondary combustion of exhaust gases which helps minimize hydrocarbon and carbon
monoxide levels and reduces warm-up time for the catalytic converter.
The pump begins to function when the engine is started and the car begins to move. It remains in
operation until the three-way catalytic converter has reached normal operating temperature. A sound
may be audible from the air pump during this warm-up period. This is normal.
pg. 8:15 Windshield washer nozzles, Washer fluid reservoir
Adjusting washer nozzles
The washer jets should spray the windshield as shown above. Use the edge of a small screwdriver to
adjust the nozzles if necessary.
Washer fluid reservoir
The washer fluid reservoir is located in the engine compartment and holds approx. 3.2 US qts. (3.0
liters).
During cold weather, the reservoir should be filled with windshield washer solvent containing anti-
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