C32 AMG, C55 AMG (W203) 2001 - 2007

C32 Alternator Failure

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Old 01-17-2011, 11:01 PM
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2005 Pontiac GTO 6.0 LS2 - Blue
C32 Alternator Failure

Few weeks ago I went on a 600 mile round trip. When I got back into town Alternator/Battery Visit Workshop. I was able to make it to Autozone with 8% battery life. Charged battery there, and drove home. Been parked for nearly two weeks now... I ordered a refurbished alternator through Ebay on the 8th, and barely got the thing today! That seller is getting negative feedback...

Checked the regulator on the new unit it is brand new. It's a nice night temperature wise compared to what it's been lately. Might just get it done here in a while. Come to think of it I've done a lot of work on the C32 at night... Strange how the alternator just gave out completely. The battery is only a few months old. Glad we have such an oversized battery!
Old 01-18-2011, 02:07 PM
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I was looking at the step by step procedure to swap out your Alternator in ALLDATAdiy.com, it shouldn't take you too long to get back on the road tonight! Good luck, let me know if you need any direction.
Old 01-18-2011, 04:04 PM
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a C32 AMG & S-Works Tarmac
Originally Posted by gt4awd
...I ordered a refurbished alternator through Ebay on the 8th, and barely got the thing today! That seller is getting negative feedback...
My alternator was working fine one day and was dead the next. It just happens.

How do you "barely" receive something? Either you got it or you didn't. If you did get it, why the negative feedback?
Old 01-18-2011, 05:01 PM
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2001 C32 AMG
Originally Posted by ScottW911
My alternator was working fine one day and was dead the next. It just happens.

How do you "barely" receive something? Either you got it or you didn't. If you did get it, why the negative feedback?
Long shipping time?
Old 01-18-2011, 05:02 PM
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2002 C32 Black/Charcoal
Not an easy job. Search forum for details on the install. The limited space makes removal and replacement a PITA. Just FYI.
Old 01-19-2011, 04:43 AM
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2005 Pontiac GTO 6.0 LS2 - Blue
I did end up replacing the alternator last night, and yes the space is very limited. This is what I did.

Remove negative battery to chassis ground.
Remove bottom skid plate.
Remove left intake hose.
Remove tubing for secondary air pump.
Unclamp hose by alt. pulley.
Move out of the way.
On the alt. one bolt is internal torx, and other is external.
Loosen top alt. bolt.
Remove bottom alt. bolt.
Support alt. and remove top bolt.
Set Alt. on frame, and face up.
Under vehicle remove electrical connections.
If installed remove left pulley saver kit pulley and move bracket aside.
Maneuver alt. around coolant line, and remove pulley up.
Position a fan blade just right for space to remove alt.
Lower in new alternator, align in bolting areas, bolt, and reinstall elec. wiring.
If the battery is low it should first be charged to 100% before starting the vehicle.

I got everything done, and was exciting to start the c32. I inspect closely to find out the alt. pulley is a 5 groove not a 7 groove! I had Autozone unbolt the old alt. pulley this morning, but had work all day. Hoping I'll be able to unbolt the new pulley using the belt to hold it in place. If not will again have to remove the alternator, and reinstall... My toolbox MM sockets only go up to 19. Bought a 24MM at Autozone $7.

Last edited by gt4awd; 01-19-2011 at 04:45 AM.
Old 01-19-2011, 03:52 PM
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MB C32 AMG
Yup made the same mistake, I think the one on your new alternator is a dummy (it's plastic). I had to take the new alternator back out, bolt on the pulley from the defective one and put the alternator back in. Putting the alternator back in the 2nd time should not be a PIA since you have good practice by now

Where did you get your new alternator from? Hopefully not the same place online as I did bc it'll only last for about a week.
Old 01-19-2011, 08:36 PM
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2005 Pontiac GTO 6.0 LS2 - Blue
It's a OE unit remanufactured. Brand new regulator. Purchased on Ebay. I don't have any sockets above 19MM in my tool box. Bought the 24MM that fits old alternator. Of course new alternator isn't 24MM... Trying to do this around work is hard. When I got off today picked up 20-23MM sockets. Here in a while I'll try to remove the pulley with the alternator installed, and belt holding pulley in place. Hopefully the belt will hold it enough to break the nut loose. This has been a huge PIA due to the shipping, and pulley issue!
Old 01-20-2011, 01:13 AM
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03 g35 coupe...........02 c32 Sold
yeah the oem alternator usually dies around 90-100k
Old 01-20-2011, 02:39 AM
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clk500
ya mine a few weeks ago
i just took 1 off a clk55 for 85$

i have 120,000 on my car
Old 01-20-2011, 01:20 PM
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2005 Pontiac GTO 6.0 LS2 - Blue
As most of you I'm sure guessed the pulley couldn't be removed with alternator installed on vehicle. Decided to just get some sleep, and I'm going to pull the alt. here in a few. Take it over to Autozone...
Old 01-20-2011, 01:55 PM
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clk500
2 get the pulley off u need a tool just for a clutch
here is a vid of how 2

http://www.youtube.com/watch?v=p52VTAnLptI
Old 01-20-2011, 05:57 PM
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2005 Pontiac GTO 6.0 LS2 - Blue
At Autozone they just used a torque wrench to loosen both nuts. C32 is up and running again! The new cm30 seems to flow better too...

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