Mercedes GLE diesel light switch issue

Sounds familiar I had something similar happen with my GLE Random lights flashing error codes popping up drove me nuts First things first did you check the fuses related to the lighting system It's a long shot but sometimes a faulty fuse can cause weird electrical gremlins Also have you noticed any issues with other electrical components like the wipers or the indicators They sometimes share the same ground points and a bad ground can cause all sorts of havoc Just curious did you notice if the dashboard lights were also acting up

I did check the fuses in the fuse box they all seemed fine but maybe I missed something I'll double-check The wipers and indicators seem to be working normally so it's isolated to the lights as far as I can tell When you say 'ground points' what exactly do you mean And yes sometimes the dashboard lights flicker a bit when the lights go crazy Was that also your experience

Okay so you checked the fuses good A 'ground point' is basically where a bunch of wires connect to the car's chassis to complete an electrical circuit If that connection is loose or corroded it can cause all sorts of weird electrical problems But since your wipers and indicators are fine it probably isn't a ground issue And yes the flickering dashboard lights is EXACTLY what I experienced Honestly with that symptom it really does sound like the light switch itself is faulty I ended up taking mine to a workshop and they replaced the switch Problem solved Save yourself the headache and just get it checked out properly

That's really helpful Sounds like our cars had the same spooky issue I appreciate you confirming that the flickering dashboard lights were also part of your problem that makes me feel much more confident it's the switch itself I'll book it in at the workshop then You've saved me a lot of time and stress As it turns out the cable was indeed faulty as initially suspected The repair cost was exactly as quoted - 95€ All working now