Quote:
Originally Posted by snapdragon
I had a flat battery the other morning after a night shift, not sure if it was the driver's door handle or running VCDS the day before. 20 mins on fast charge and it was enough to start and get home by which time MMI was at 80%.
Went to bed and battery was flat again in the afternoon, so charged fully off the car. All was OK, but same again the next morning but battery gauge in MMI never moved off 10% even after 90 mins driving and finishing the charge on the charger with the charging post. I disconnected again to reboot the BEM. Still 10% after driving to work this evening, I brought my charger and 50m extension real this time, but just been out and tested an it was perfect. Still showing 10%. VCDS shows battery internal resistance 9OHM which doesn't sound right.
DO you think I fried the BEM - maybe try recoding as new battery or is it telling me the battery is junk status? Even though the battery is now fine (cranks really fast) , it is shutting stuff like the power boot and alarm off.
|
I would try recoding as a new battery first by changing the last digit by 1, that will tell the BEM you have changed the battery and it will try to reset, I had issues with a D3 doing the same thing and all I've ever needed to do is that to correct it. Failing that I would change the BEM module unless youre aware of any drain possibility 
__________________
Confidence is the feeling you have before you know better . . . . 
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble 
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble
Audi A8L D2 4.2 Petrol with LPG - Ebony Black
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior
and some other A8's A8L's and Mercs
|