500SEL (126.037) V8-5.0L (117.963) (1984)
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Compression Check: Testing and Inspection
Test compression pressure at normal operating temperature. If minimum compression pressure is below specification, test cylinder for leaks. See: Testing
and Inspection
Unscrew all spark plugs for testing.
Pull off plug connection (X27) at wiring harness and plug adapter cable (01) with 1-pin coupling into plug connection (terminal 50) of wiring harness
Crank engine with the starter. Connect the specified terminals for this step.
On vehicles with bolted terminal blocks, use the crocodile clamp with the 1-pin connector in place of the adapter cable.
Separate the cable connector (terminal 16, arrow), switch off ignition to prevent ignition coil and fuel pump being operated.
