Audi a6 c6 bad battery charge

#audi #car #battery charge

[@truckercech]

Hi i changed new battery also alternator... i was getting arround 13.3v ..after alternator change i was getting close to 14v.. i tought its ok its solved..3 days after again car have problem like battery is not good charged... and again arround 13.volts only ... and this cable i got very hot ...so what exactly is wrong? Some connection somewhere? Where? What to do? Thanks for explaining

[@Spumas7]

Hi. When changing the battery, it is necessary to tie it as the old battery data remains in the car's computer. As a result, the new is badly loaded and shortens its service life. The red mass wire must not heat up, meaning there is no good contact.

[@truckercech]

@@Spumas7 in my car there is not coding section in vcds for new battery... some a6 c6 dont have this... and where is not good contact? Where to look?

[@Spumas7]

I would suggest first to check how the generator is charging, if everything is fine, then look at the positive wire that goes to the generator, there is often oxidation there. Unfortunately, it can only be accessed from below. Many people replace this red plus wire with a new one, but it is quite expensive. As far as I know, it is ordered from Poland, it is cheaper there.