S4 Quattro Wagon V8-4.2L (BHF) (2008)
Compression Check: Testing and Inspection
Compression, Checking
Special tools, testers and auxiliary items required
‹› Spark plug removal tool (3122 B)
‹› Compression tester (V.A.G 1763)
Test Conditions
‹› Engine oil temperature min. 30 °C
‹› Battery voltage at least 12.5 V
Test Sequence
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Switch off ignition.
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Remove fuse for Fuel Pump (FP) from socket - 28 -.
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Remove rear engine cover - arrows -.
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Remove front engine cover - arrows 1 and 2 -.