i have a post on this as well. 2010 300c running in limp mode . no lights on dash though, but the fault cannot be cleared. car stood for a year, while previous owner was in hospital. . we had to replace battery ,car ran ok for a couple of months then i've had one problem after another. previous owner had no probs...it was used everyday.. latest fault is torque lock solenoid , which has been replaced, but still showing fault. can't go to garage because of this virus thing that's going on ..so i've disconnected battery till i can get it done. know how your'e feeling ....best of luck
Wow... that flat battery has caused you some problems mate.
Never heard of that problem (thankfully) and sorry I have no knowledge of Scottish mechanics. However, some time ago Briscoe76 put the below tip on these forums. I followed his instructions and it has solved several electrical gremlins for me. I used to have the speedo needle waving about wildly, indicators would sometimes miss a flash, the alarm would set itself off and the parking sensors would bleep randomly, but since following his tip they have not re-occurred... fingers crossed, don't want to tempt fate.
Definately worth a try.
Briscoe76's tip:
Hi, did you get this problem sorted at all?
If you didn't, then its an easy fix. Open the bonnet and, and find the washer bottle. Next to that, bolted to the drivers side wing, you will find a black box. Unplug the box, and hey presto, the fault will vanish. It will also cure a few other faults, such as indicators that miss a click, rear wipers wiping on their own, reversing sensors firing up when your driving forward.
The box is the HID translator module. All it does is let the ECU know when a headlight bulbs blows. If you can live without that function then you can cure all the rest!! The HID module develops a fault, and effects lots of other things down the line.
