Alternator

[mtbrider]

Anyone ever have to change their alternator. My battery cannot keep a charge and after a quick test at the local auto store it seems like my charge system is a little lower than normal. After reading Dirtybrd's thread I'm gonna check fuses tomorrow, but then I think I may need to swap the alternator. Any thoughts or on experiences with this? I'm getting the little battery "pop-up" notice when I'm driving.

[infernocl]

hmm Audi alternators are very durable and high output. you can check the voltage regulator first.

[B6Lovin]

haven't done it on the a4... but to me it looks liek you just pop off your intake manifold (to have more room) and then go at it with the belt tensioner and the bolts holding the alternator in like on any other car. just a few basic wires after that - then reverse your steps

[dirtybrd]

Hit up Dougyfresh, I think he has a spare one.

[mtbrider]

Thanks

[Matt Devo]

since you need to remove the alternator in order to replace the thermostat, I'd recommend the thermostat replacement tech article as a good starting point </shameless self-plug>

[Condo]

I have a spare one too if you need it. http://www.audizine.com/classifieds/...0&ppuser=15259

[mtbrider]

Thanks for the link Condo. I'm still trying to figure out if I need to change the alternator. I went through the fuses today and had one out but it was not a important one so now its on to the next step.

[AudiA4_20T]

your car is a mess lol

[mtbrider]

your car is a mess lol

I hear you on that one, it's a big pain in the ass.

[dirtybrd]

your car is a mess lol

At least it runs...burn!

[Audi Skate Snow]

if your voltage regulator is going out, grab a digital multi meter and put it on AC volts, and put the leads on your battery +,-, see if there is a high amount of AC voltage across your battery. or it could be your battery itself, check the level of your battery.

[mtbrider]

Thanks, I know its not the battery since I've changed that twice, but I have not looked at the regulator. Good info all around.

[Redgoat]

haven't done it on the a4... but to me it looks liek you just pop off your intake manifold (to have more room) and then go at it with the belt tensioner and the bolts holding the alternator in like on any other car. just a few basic wires after that - then reverse your steps

Shouldnt need to remove the intake manifold.. possible the TB though..

[B6Lovin]

Shouldnt need to remove the intake manifold.. possible the TB though..

yeah, im used to mine now -- it covers EVERYTHING lol

[mtbrider]

how will I know if the voltage regulator is going bad, I got the little green battery pop up display when I was driving

[dougyfresh]

I have a spare one too if you need it. http://www.audizine.com/classifieds/...0&ppuser=15259

Mine came off a TT225HP so I'd have to do some research to see if it fits. Come to think of it. I don't think the bolt holes line up. If you need an alternator contact John (condo)


You can remove it without touching the intake manifold or anything else. Might have to remove your throttle body though but I can not remember. Its four bolts (5mm allen head socket). The serpentine belt can be removed by moving the tensioner with an 18mm wrench (clint ). Then a 13mm socket to remove the main wire and there is a second wire that has a quick connector on it. Then you've got an alternator in your hands. Pretty simple job.

[mtbrider]

thanks i bought condo's and hopefully this will be the fix

[DownhillA4]

Mine came off a TT225HP so I'd have to do some research to see if it fits. Come to think of it. I don't think the bolt holes line up. If you need an alternator contact John (condo)


You can remove it without touching the intake manifold or anything else. Might have to remove your throttle body though but I can not remember. Its four bolts (5mm allen head socket). The serpentine belt can be removed by moving the tensioner with an 18mm wrench (clint ). Then a 13mm socket to remove the main wire and there is a second wire that has a quick connector on it. Then you've got an alternator in your hands. Pretty simple job.

Doug, do you have a DIY on this? I'm 99% sure my alternator crapped out on me today and need it fixed ASAP with a new Valeo.