Hello all. Car is a 335d msport and the problem I have is that the dash clo ck (time keeper, rather than odometer) keeps poor time and frequently rever ts to zero, especially after a couple of days standing. The car's battery i s original and not in the greatest of shape (needs charging in winter), but that's mainly down to low daily average miles. The clock failure is still happening now, in summer, when the car starts in a lively fashion. The pro blem persists even after a long run or a charge.
My first thought is that the dash clock is powered by a separate small rech argeable, to avoid main battery drain when standing for long periods and th at said small rechargeable is FUBAR. This theory would fit the observed fac ts. Can anyone confirm and reveal a replacement procedure?
Cheers. Terry.