C5 X7 Electrical Charge Issue

[Ainsy]

Hi Marc. I have had a warning light appear stating battery charge or electric supply fault. Electric tailgate and air con now in opp. Is this an alternator issue. Maybe a coincidence but cars developed a rattle from belt area now as well.

[GiveMeABreak]

Hi, yes it sounds like either the accessories belt is loose or the alternator. My accessory belt shredded and came off after it had been to the dealer to have the A/C compressor replaced - caused by them levering off the belt with a screwdriver and nicking the belt - so that just weakened it and ultimately it came off whilst we were out. The first signs were the power steering starting to get heavier at lower speeds - as this is entirely powered by the battery directly, so as my battery started to run down without any current generation - luckily made it home.

So if you think the belt is shot, get it replaced, but I would certainly limit use of the car until you know what it is or you could get caught short as per my example and I would certainly get the battery off for a good overnight charge in any case.

Make sure you follow the BSI Reset / Battery Disconnect / Reconnect Procedure

[Ainsy]

Thanks for you help again Marc