190E 2.3 (201.028) L4-2.3L (102.985) (1987)
Part No. 001 589 76 21 00, to the positive terminal post of the battery.
3 Detach connector (X27) from plug connection (terminal 50).
4 Plug in connector of adapter cable (01), Part No. 124 589 36 63 00.
5 Crank engine several times with starter motor, in idle position, selector lever in position "P", and parking brake applied so that residues and soot
are ejected.
6 To test each cylinder, press the compression pressure recorder into the spark plug hole of the particular cylinder and, with the throttle valve fully
opened, crank engine approx. 8 revolutions. Test all the cylinders in this way.
-
Specified Value: 10.0 - 12.0 bar (145 - 174 psi)
-
Minimum Value: Approx. 8.5 bar (123 psi)
-
Permissible difference between cylinders: 3.0 bar (43.5 psi)
7 Blow out spark plug recesses with compressed air. Remove any residues on the tapered sealing seat.