Tiguan 4Motion (5N1) L4-2.0L Turbo (CCTA) (2009)
‹› If water is located in viewing glass, drain it via water drain plug - 6 -.
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Open valve - 3 -.
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Set pressure to 0.5 bar using pressure regulator valve - 2 -.
CAUTION!
Pressure must not exceed 0.5 bar! A pressure set too high may damage the engine.
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Open valve - 4 - and wait until testing circuit has filled. If necessary, continue to regulate pressure to 0.5 bar.
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Check charge air system for leaking areas by listening, touch, using leak detection spray or using ultrasonic measuring device ( V.A.G 1842).
‹› Assembly of hose connections with connection couplings => [ Hose Connections with Connector Couplings, Assembling ] See: Service and
Repair/Hose Connections with Connector Couplings, Assembling
‹› A small quantity of air dissipates via valves in engine. A pressure retention test is not possible for this reason.
‹› Handling instructions of ultrasonic measuring device (V.A.G 1842) => Owner's Manual.
‹› Before removing adapter, discharge pressure in testing circuit by pulling off coupling from adapter (V.A.G 1687/5).
‹› Hose connections and charge air system hoses must be free of oil and grease before installing.