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 VARIANT/TRIMSECTION 8 (1.9L - IGNITION/GLOW PLUG SYSTEM - ALH, 2V TDI (A4 PLATFORM))GLOW PLUG SYSTEM, 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 is about a different variant/trim than selected.
- Pull connector off coolant temperature sender.NOTE: Disconnecting the ECT sensor connector simulates a "cold" engine condition and turning on the ignition starts the glow plug process.
- Disconnect glow plug connector from glow plug.
- Switch on ignition.
- Connect multimeter VAG 1526 to measure voltage between No. 1 cylinder glow plug connector and vehicle ground. Then between cylinder No. 3 glow plug connector and vehicle ground. Specification:
- Specification:
Battery voltage for approx. 20 seconds
- If no voltage is present, check circuit
- Check DTC memory, if necessary, repair any malfunctions and erase DTC memory; see DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING .
- Display readiness code, see READINESS CODE, DISPLAYING . If DTC memory has been erased or Engine Control Module (ECM) was disconnected, reset readiness code; see READINESS CODE, SETTING .
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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.