audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Wastegate|Testing and Inspection|Page 3778 > < All Technical Service Bulletins for Turbocharger Air Intake Hose:|218701
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Wastegate: Testing and Inspection

BOOST PRESSURE, CHECKING

NOTE:  Boost pressure can be measured either while driving or on dynamometer

engine oil temperature: minimum 80°C (176°F)

pull ignition distributor vacuum line off intake manifold (arrow)

connect pressure gauge VW 1397 with T-connection, between previously removed vacuum hose and intake manifold

place pressure gauge on front passenger seat

NOTE:  Do not pinch off hose or restrict in any way when placing gauge inside vehicle.

open valve on pressure gauge (arrow)

run engine in second gear at 4,000 RPM (full throttle)

close shut-off valve on pressure gauge (arrow)

Wastegate|Testing and Inspection|Page 3778 > < All Technical Service Bulletins for Turbocharger Air Intake Hose:|218701