VW T4 AAB Charging Issues Due to Corroded Earth Straps

Inspect the engine-to-chassis earth strap for signs of green oxidation, fraying, or loose mounting bolts. High resistance in the ground path prevents the alternator from providing a stable reference voltage, causing inconsistent charging performance and intermittent relay behavior.


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VW T4 AAB Voltage Drop and Relay Clicking After Start
Automotive - Internal Combustion Engine
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Automotive - Internal Combustion Engine

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ID: RyKzYGXnObR2PyddyIen
Created: 8/18/2026, 9:36:11 PM
Version: 1.0
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