A4 Quattro Wagon V6-2.8L (AHA) (1998)
Variable Valve Timing Solenoid: Testing and Inspection
Camshaft Adjustment System, Checking
Camshaft Adjustment System, Checking
Required special tools and test equipment
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VAG1551 Scan Tool (ST) with VAG1551/3 adapter cable
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Multimeter US1119 (Fluke 83 or equivalent)
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VW1594 connector test kit
Function
The camshaft adjustment is dependent on engine speed and load. The electrical solenoid valves for camshaft adjustment (-N205- and -N208-) are
switched to apply oil pressure to the mechanical camshaft adjusters, which adjusts the camshaft timing.