[s-cars] Alternator overcharging?

[James Murray (QA/EMC)]

Okay I've tracked down two numbers to fix the alternator or generator as Bentley refers to it:

049 903 515 C brushes 
068 903 803 D for the Voltage Regulator with brushes

Part 068-903-803-D seems to be the right one to go with as the brushes are included, which I assume means I don't need part 049-903 -515-C. 

Does anyone know if I can replace the Voltage Regulator on the spot withot removing the alternator from the car?

Cheers, /Jamu.



-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]
Sent: Sunday, November 06, 2005 1:21 PM
To: s-car-list at audifans.com
Subject: [s-cars] Alternator overcharging?


Has anyone experienced having the alternator overcharge the battery? I think my voltage regulator is shot, anyone know how to check this to be sure?

I found my Battery was dead, when tested the battery voltage without the car running I got 16.6V and with the car running it went as high as 18V !!!??? I thought my meter was off but I tested it against my battery charger and it gave me 12V as expected. So my only conclusion is the voltage regulator is toast and the alternator is overcharging the battery thus boiling off the acid... I checked the fluid level and sure enough it was low, I filled it up charged the battery and the car is running again... but I don't know for how long... 

So is it easy to replace the voltage regulator and if so how do you go about it? anyone got a part number for this?

/Jamu.
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