If the Tachometer does not work either, replace the Overvoltage relay (aka Overload Relay - $60). Actually - check the fuse in the relay first. Might be an easy fix. It is located next to the brake booster towards the center of the car next to the Klima. Red plastic with clear flip top to get to the fuse. If that's it, you then have to figure out why the fuse blew... Replace all the fuses while you are at it if they are original.
My first 300SDL did that exact thing intermittently after multi-hour road trips. I'd pull up to a toll booth and the car would die. Give it gas and it worked fine. Let it sit for a bit, and it worked okay. Resoldering the connections in the relay fixed the problem (thus far). -Dave Walton On Tue, Jul 8, 2008 at 3:11 PM, John Robbins <[EMAIL PROTECTED]> wrote: > A friend's parents have a 300SDL that won't idle. The car will run fine > down the road, but you have to apply throttle to keep it running at > idle. If you take your foot off of the throttle at idle it will drop > below idle, surge above idle, then shut off. There is no smoke, and the > onset of the problem was fairly sudden. The delivery valves are leaking > a little bit. > > My thoughts are fuel filters -> delivery valves -> bad injection pump > governor. > > Any ideas? > > John > > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
