My sdl does not kick down at all with the floor switch Sent from my iPhone
> On Nov 1, 2017, at 9:45 AM, Meade Dillon via Mercedes <mercedes@okiebenz.com> > wrote: > > Great thread here for Curly and others with OM603 (or any analog engine > computers from the 80's and 90's, maybe others). > > http://www.peachparts.com/shopforum/diesel-discussion/389414-eds-elr-idle-issues-om603.html > > BLUF (bottom line up front): There are a handful of capacitors in the > computer that die and probably are the source of much woe, and replacing > them would be A GOOD IDEA if your OM603 has any idle quality issues or > kick-down switch issues. > > ----------------------------- > > "There are 5 Electrolytic capacitors on the EDS computer boards. On the 126 > the EDS computer is located in the passenger kick compartment and requires > no tools to remove. Not sure about the 201 and 124. > > 4 phillips screws in the lid removes the boards which are clipped together. > Looking inside the 2 boards, you can see 2 heatsinks that are clamped to > some transistors on one of the boards. You will want to remove the 2 > phillips screws holding the OTHER board to the main heatsink/plug assembly. > You can then lift it off and pivot backwards on the ribbon cable. There are > plastic clips that hold the 2 cards together, they simply unsnap. > > Once you have the cards opened up like a book, the locations of the > capacitors are obvious and the capacitors are clearly marked. On the board > you didn't unscrew from the main heatsink/plug assembly, there are 4 > capacitors: 100µF @ 50V Radial, 100µF @ 10V Axial, 22µF @ 40V Radial, 7µF @ > 63V Radial. > > The board you unscrewed and pivoted out of the way has a single > electrolytic capacitor 22µF @ 16V Axial. > > The circuit cards are double-sided, so be careful desoldering and > resoldering. I used 63V parts for all my replacements. 7µF is also not a > standard value, so I substituted a 6.8µF capacitor for it. > > Out of all of my capacitors, only the 22µF radial was good (I replaced it > anyway). The next highest reading I got out of any of mine was .006µF In > Germany, they'd refer to that as "kaput". > > > ------------- > Max > Charleston SC > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
