Главная Audi Audi TT (2007 year) (4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics Engine ID CBB) - Workshop Manual
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Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not – Using a commercially available connection piece, connect charge air system tester -V.A.G 1687- to compressed air -1-. Note If there is water in sight glass, remove drain plug -6- and drain water. – Open valve -3-. Caution Risk of damage if pressure is set too high. ♦ The pressure must not exceed 0.5 bar. – Adjust pressure to 0.5 bar via pressure control valve -2-. necessary, adjust pressure to 0.5 bar again. – Check charge air system for audible leaks or leaks that can be felt with the hand; apply commercially available leak detecting spray or use ultrasonic tester -V.A.G 1842- . Note ♦ A small amount of air escapes through the valves and enters the engine. Therefore it is not possible to perform a pressure retention test. ♦ For operation of ultrasonic tester -V.A.G 1842- , refer to ⇒ Operating instructions . ♦ Release pressure in test circuit by detaching hose coupling from adapter before removing adapter. ♦ Hose connections and air pipes and hoses must be free of oil and grease before assembly. ♦ Secure all hose connections with the correct type of hose clips (same as original equipment) ⇒ Electronic parts catalogue . ♦ To ensure that the air hoses can be properly secured at their connections, spray rust remover onto the worm thread of used hose clips before installing. 2. Charge air cooling 215 |