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Home >> Audi >> 2006 >> A4 Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> 1.8L - Exhaust System, Emission Controls, Generic Scan Tool, Engine Code(S): AMB >> Exhaust system, Emission controls >> Secondary air system >> Notes

Secondary air system: Notes

The Secondary Air Injection (AIR) system causes the catalytic converter to heat up more quickly, resulting in earlier operating readiness following cold start.

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