Given the car is mapped I didn't want to go to a Merc dealer, and so it's been into an indie in Chester today. They diagnosed that the aux battery (capacitor) was at fault and fitted a new on. £255 all in and no more messages (for now).
Thanks all for your help and advice
I like the look of these and might get one myself. Quick question, my car is silver, should I go full black or black and chrome?
Any other silver owners bought one who would share a photo please?
You are an absolute star. I've just managed to pull the top of the lid off, and the pin went back in first time.
Lid now opens and closes as it should.
Thanks to everyone who offered help and advice.
Now, if I can stop the "auxiliary battery malfunction" warning .....
Thanks all. I've been ignoring it of late, but will try to take it out this weekend and see if I can get the front lid off. If I can, I may get a new unit from Merc and see if the front lid is interchangeable.
Mine is still showing the message even though the start stop is working and the symbol is green. My local dealership offered to cover the cost of the diagnosis under the warranty, but wouldn't confirm if that would also cover the cost of the aux battery. I think I'm going to have to book mine in...
Would you believe it, I started the car earlier and it's telling me I have an auxiliary battery malfunction again!!
I've driven the car, and the start stop icon is green, with the function working as it should do.
I don't want to take it into Merc for a diagnostic under warranty particularly...
That’s brilliant and hugely helpful. Two questions;
1. How do I get the lid off as in your photo?
2. I managed to get the console out earlier, but couldn’t work out how to disconnect the 12v socket. Any tips?
Thanks again, I think you’ve cracked it
I've had a mask stored in the cupholder area in my W205 C63. It got stuck on something at the weekend and when I got it free, this part fell out and now the lid won't stay shut.
I suspect that this is the longest of long shots, but has anyone got a diagram of the parts in question so I...
Thanks for the info, and as per my last update it appears to have sorted itself out, at least for now. How does that happen then, if it's a capacitor rather than a battery - i had assumed using it had charged the battery sufficiently but evidently not. Am I likely to have it happen again?
Quick update. Just driven to my office and back to pick up some stuff and the warning message has gone. Looks like I must actually have a battery and the longer drive has charged it sufficiently.
I'll leave my booking in place for a week to see if it happens again, but fingers crossed it was as...