Just got my 2005 E350 back from the garage as the EML light came on and was reporting lots of undervolting errors.
Turns out the car has never had a new battery and the one that was in there was from 2004!
12 months ago i was sat in my car at click and collect and without any warning the car refused to start. this was in a 2012 nissan QQ so lasted 10 years.... i was happy with that.
gods honest truth 1 week to the day later i was sat in the click and collect at the same supermarket in our other car and , out of the blue our 2011 pug 308 died so 11 years on that one. the people at sainsburys must have thought i was having a laugh (they recognised me).
in truth i suspect the battery in the pug had been failing for a while (the eco mode "stopstart feature had been disabled for about 5 years with a fault which magically was fixed with a new battery**)...... chances are it would have lasted a little while longer but maybe attempting to jump start the QQ on it the week previously was a final nail in its coffin.
**if the stopstart really demands you replace your battery 5 years before it actually dies then that is a failed design right there!.