Gilly and company:
We just installed the air slide valve or actuator. We decided that since idle control units rarely go bad we decided to replace the air slide. To update a new engine wire harness was put in a few days ago.
Still the problem exists - irratic idle. The computer is showing Idle control module faulty code... but I Did not see it. Since he cannot program the module he is recommending that it be taken to the MB dealer.
We have not decided if we are going to remove the actuator.