On Sat, 25 Aug 2018 11:06:57 -0400 Meade Dillon via Mercedes <mercedes@okiebenz.com> wrote:
> Here's my plan, if anyone can think of something else clever and > inexpensive, or at least possible this weekend, let me know. > > Check the refrigerant pressures, and if the hydrocarbon blend > (enviro-safe I think) is low, top it up and check for leaks. Will topping up keep the composition of the blend? > Check the function of the electric cooling fan. Maybe add a switch so I > can activate the fan manually? A manual switch might be a good idea. The '90 E300D/2.5 Turbo I owned had a bad A/C pressure switch so the cooling fans would not come on. Jumpering the leads made it run all the time, which was helpful. > Check / clean between radiator and condenser. Yes! > Check / clean front of the evaporator (under the blower fan, which is > under the mono-wiper motor, which is under all that plastic under the > windshield - fun!?). Is there not some grille that will keep leaves and other detritus out of the evaporator? > Part of the reason for poor performance of the HVAC is the vacuum pod > for the center vents has failed, so no AC air ever comes from the center > vents. I suspect that R&R of the dash to fix that vacuum pod and > replace all the other pods will be my job NEXT weekend.... Try the other things first ... Craig _______________________________________ 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
