740i_Lou 5 Report post Posted February 6, 2014 Put my 740 back together after doing the waterpump/pipes/rocker gaskets and a few bits and pieces but when I connect the battery, there is a clicking noise coming from the heater valve/pump on the firewall near the ECU box. There are no engine check lights and the car starts fine. I turn the heater on and whenever it clicks it will turn off and back on again. Any idea's as to what I? should be checking? A sensor somewhere I may of left unplugged? Quote Share this post Link to post Share on other sites
kulgan 1042 Report post Posted February 6, 2014 I cant help but if you go here there are a bunch of very knowledgable guys dedicated to the e38's. I'm sure someone there will be able to help. Anytime I have something wrong with mine(which hasn't been often) this is my first stop if I cant figure it out myself. http://forums.bimmerforums.com/forum/forumdisplay.php?274-1995-2001-(E38) Quote Share this post Link to post Share on other sites
740i_Lou 5 Report post Posted February 6, 2014 Cheers for that. The clicking seems to have stopped. I ran the engine for a while and it went away. Kinda strange. I'm going to clean all the plugs tomorrow as the ASC light keeps coming on. Quote Share this post Link to post Share on other sites
