Join Date: 13th April 2015
Thanked 1 Time in 1 Post
Complete loss of electrical power!
A couple of days ago I was driving on a busy A road and needed to stop for some roadworks, so Engine auto-stopped. Clutch down & select 1st then all the lights just went out or dim. After that there's just enough power on the Aux ignition to dimly light the dashboard but as soon as I try to put on the hazard flashers or main ignition the lights just go off again.
Not nice being stuck in the middle of the road with no lights or hazards! Fiddling with battery terminals and cables didn't seem to sort it although at some point I had enough to put the hazards on.
The really annoying thing is when the recovery truck appeared 1hr later the guy gets in the car and starts it! I then take it to a local garage who scan for fault codes, check the battery & alternator - they couldn't find anything wrong. I've since examined the battery terminals and earth strap and they all seem pretty much OK. The car's worked fine the past couple of days but there's a fault lurking there somewhere and I don't like that feeling. Especially as my daily commute involves 100 miles of motorway, much of it dark.
I suspect maybe the main power feed from the battery to the fusebox or wherever it goes (not the starter motor cable, the ignition power cable with the fusable link). Does anybody know of a wiring diagram, or advise of part locations? Everything I saw suggests a bad connection somewhere rather than a firmware glitch or body control unit failure.
Car is a 2012 2.2 CDTi by the way.