TT Roadster L4-2.0L Turbo (BPY) (2008)
Wastegate Actuator: Testing and Inspection
Exhaust Turbocharger Vacuum Diaphragm, Checking
Exhaust Turbocharger Vacuum Diaphragm, Checking
Special tools, testers and auxiliary items required
‹› Hand vacuum pump (VAS 6213)
Test conditions:
‹› Hose from exhaust turbocharger over Wastegate Bypass Regulator Valve (N75) must have continuity to vacuum diaphragm.
‹› Wastegate Bypass Regulator Valve (N75) OK.
Work procedure:
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Disconnect electrical connector on Mass Air Flow (MAF) Sensor (G70) - 3 -.
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Open clips - 1 and 2 - and remove air guide hose from mass air flow sensor.
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Remove front air intake connector on lock carrier - 4 -
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Remove engine cover.
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Connect Hand Vacuum Pump (VAS 6213) to vacuum diaphragm - arrow -.