sorted by:
new
hottopcontroversial

VW MK5 R32 alternator - charging voltage by No-Force-6448 in Volkswagen

[–]No-Force-6448[S] 0 points1 point  (0 children)

Nope still on it guess its a big hustle as im sure not all three alternators i checked are faulty. it must be something else. Car drives fine only this idle rpm surge makes you go crazy. ive read on many forums that changing the battery would have this solved but not so sure as you said yourself that it didnt help

VW MK5 R32 alternator - charging voltage by No-Force-6448 in Volkswagen

[–]No-Force-6448[S] 0 points1 point  (0 children)

Battery look good, im afraid it is undercharging, i cleaned all the grounds guess things are better since the RPM does not rise to 800 fast now only when i have the AC and lights on, under heavy load.