RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
Compression Check: Testing and Inspection
Compression, Checking
Special tools, testers and auxiliary items required
‹› Hose Clamps Up to 25 mm Diameter (3094)
‹› Spark Plug Removal Tool (3122 B)
‹› Compression Tester (V.A.G 1763)
‹› Puller (T40039)
Procedure
‹› Engine oil temperature min. 30 °C
‹› Battery voltage min. 12.5 V.
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Switch off ignition.
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Disconnect electrical connector at Engine Speed (RPM) Sensor (G28) - arrow - at left of transmission by bending heat shield to side slightly.
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Remove cover - 1 - in engine compartment (left side).