No. 1 reason for electic fan staying on all the time (if wired corrected) is a shorted sensor. No. 1 reason for A/C pump not coming on is low refrigerant pressure (take to AC shop and have tested).
You are doing me a wonderful service not only part wise, but also knowledge wise when it comes to the Mercedes and their diesels. As the weather starts to turn to the milder side here in Minnesota I'll be interested in doing some of the other chores that you have suggested, ie; vacuum pump overhaul, driveline flex disk replacement, rear door check straps. The list does go on but I really like my '84 300TD and want i... Read More
Issues probably not related