Some of you might have seen my introduction post a month or so ago, if not, I have a '93 400E with 36k miles. It has very clearly not been driven much at all and even less in the last five years. Unsurprisingly the more I drive it, the happier things are but I do want to take care of these details. My shop is good and familiar with this series but examples they work on are few and far between.
I have been doing extensive research but some things I cannot find or don't quite fit my situation. I appreciate any knowledge, direction, links, etc. I am very excited to finally have a 124 yet my time to solve these problems is limited and I want to make sure I have enough background knowledge before talking with my shop.
-Shifting into D or R is hard. Highway shifts are smooth. ATF is clean. Idling in gear is smooth and level at 600RPM. Have not tested cruise control yet.
-Running rich? The exhaust while idling has a slight unburnt smell- not nearly as clean smelling as I would expect. Likewise fuel economy is lousy.
-ASR/ABS: all four related lights come on from time to time or don't show up at all. I do not have a limp condition. The battery appears strong. Ignition harness is the updated version in like-new condition. Lower harness is flaking. Because its NLA, I will have to have it rebuilt. Stored codes: 007 Ignition System & 096 Started lock-out backup lamp switch S16/3.
-External temp inaccurate and occasionally blinks off and on. Probe behind plate looks like its had water intrusion.
-Bang from dashboard center when key is in Pos.II Has a vacuum-esque sound to it.
-Oil pressure gauge: sometimes while cruising it will indicate '2' or stay at full pressure while idling in Park.