CL 550 4MATIC (216.386) V8-5.5L (273.961) (2009)
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^ When using several solder connectors (A, Figure 5) per repair harness, arrange them in an offset pattern (arrows, Figure 5).
^ Repair points (arrows, Figure 6) should be inside the harness duct (A, Figure 6) wherever possible.
^ Ground the ATA siren line to ground point W34/1.
^ Ground the CAN hub (PT-CAN) X30/21 line to ground point W18.
^ Ground the CAN hub (body CAN) X30/33 line to ground point W19.
^ Large line cross sections are present in the repair harness at ground point W34/1 (ground, frame floor assembly, left footwell). They can be soldered to
the lines located inside the vehicle.
^ In the event of corrosion of the B-pillar air distribution actuator motors (M16/33, M16/34), replace the actuator motors (they are available as a
replacement parts).
^ Disconnect the battery ground cable (refer to WIS: AR54.10-P-0003SX).
^ Leave an extra 20 mm length when wiring for the solder point.
^ Strip 15 mm of insulation off the wire ends and twist the ends together.
^ Twist the stripped wires using wire ends from the repair kit and push the end solder sleeve onto the wire ends (while twisting).
^ Use the heat gun with reflector when soldering. Preheat the gun to 400°C (750°F) and make sure that the heat shrink wrapping of the solder connector
contacts the wires properly after soldering (refer also to WIS: AR00.19-P-0100-09A).
