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2000-2005 Volkswagen Passat Air Pump - Pierburg W0133-1833559
The air pump is a device that supplies the fresh air needed by the vehicle's air injection system. It injects air into the exhaust stream to promote more complete oxidation of unburned exhaust gases. The Pierburg replacement for the 2000-2005 Volkswagen Passat air pump is a pollution control unit that re-injects combustion products back into the vehicle's emission control system. Without it, a Volkswagen could not use its catalytic converter, and would be regarded as unlawful in many places. Under California law, VW has to cover the air pump for 7 years / 70,000 miles. Also, keep a check on your air pump hose to make sure it is not getting cracks in it. Over the years, the engine heat and weather can take their toll on the hose, weakening it to the point that breaks are easily caused.
great service !!