Replaced faulty alt and weak battery. Am on second replacement from parts store--keeps draing battery--any thoughts. Also, lost courtesy lights on ds and dome. Dome works manually.

I am having a similar problem. Brought it to VW, charged me $100 and said it was my cell phone. Being an electrical engineer, I looked into it myself and found that my cell phone does not draw anywhere near enough power to cause a problem. The analysis done by VW was inaccurate in that they were assessing the draw when the dome lights. Sjortly afterrward the radio stopped working. My guess is that the radio amplifier is not being shut off as it should be cuasing the power draw. Now that the readio stopped working, I think the problem may be gone.

John

I'm having the same problem with my 91 passat wagon. replaced the alternator and am on my second battery. seems to happen more in the summer when its hotter - the engine fan s...tays on and seemingly drains the battery