TT Roadster L4-2.0L Turbo (BWA) (2009)
Compression Check: Testing and Inspection
Compression Pressures, Checking
Special tools, testers and auxiliary items required
‹› Spark plug removal tool (3122 B)
‹› Ignition Coil Puller (T40039)
‹› Compression tester (V.A.G 1763)
Test sequence
‹› Engine oil temperature min. 30 °C
‹› Battery voltage at least 12.7 V
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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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Remove ignition coils with power output stage =>
Fuel Injection and Ignition 28 Removal and Installation.
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Remove spark plugs, using spark plug removal tool (3122 B).
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Disconnect 8-pin connector from fuel injectors =>
Fuel Injection and Ignition 24 Removal and Installation
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Check compression using compression tester (V.A.G 1763) and adapter (V.A.G 1763/6).
‹› Using tester: => Operating instructions