Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN2002GOLF GLS, 2.0 K, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2 (1.8L - COOLING SYSTEM - AWD, AWW, AWP (A4 PLATFORM))COOLING SYSTEM COMPONENTS, REMOVING AND INSTALLINGAFTER-RUN COOLANT PUMP, CHECKINGTEST SEQUENCE
2002 Volkswagen Golf GLS, 2.0 K, Standard
Test sequence
2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION Test sequence
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2006 Volkswagen GTI, 2005 Volkswagen Jetta, 2005 Volkswagen GTI, 2004 Volkswagen Jetta, and 2004 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.
- Pull 2-pin connector off After-Run coolant pump -V51- -arrow-.
- Connect contacts of After-Run coolant pump -V51- to battery using aux. cables from V.A.G. 1594. After-run coolant pump must run.
If the after-run coolant pump does not run:
- Replace After-Run coolant pump -V51-.
If the After-Run coolant pump -V51- runs:
- Switch ignition off and on again.
- Connect VAG 1527B voltage tester to disconnected connector for after-run coolant pump (V51) with auxiliary cable from V.A.G. 1594 A LED must light up.NOTE: This check must be performed within 5 minutes after switching ignition off.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.