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Home >> Volkswagen >> 2003 >> Jetta GLI >> Repair and Diagnosis >> Engine Performance >> System >> 2.8L - Engine Mechanical, Engine Code: BDF >> 19 - Engine - Cooling System >> Cooling system components, servicing >> After-Run Coolant pump V51 , checking >> Checking function
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Checking function

Fig 1: Contacts Of After-Run Coolant Pump V51 Connected To Battery
GW00000527Courtesy of VOLKSWAGEN UNITED STATES, INC.

If the coolant pump does not start:

If the coolant pump starts: