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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Alternator replacement on 1999 G500 ???
I am trying to replace the alternator, I tried replacing the Voltage Regulator (VR) but since VR isn't giving me FULL 14.4 Volts… and I am stuck with a dilemma - OLD alternator has two prongs - a small prong labeled "D+" and a large one labelled "B+" , this NEW alternator I got which is supposedly better has two large prongs, one labeled "B1+" and the other "B2+", also there is a small half cirlce female connector on top right of it with two small insert, it kind of looks like the attached picture job. Have anyone any idea what I connect my original B+ and D+ on this new alternator to? I searched forums and found nothing except a clocking article on this one guy's 2003. I'd really hate to take it to the dealership when I have gotten this far. I have fan belt replacement, fan off, tensioner replacement, even got that new idler pulley from Karl... just need to put alternator in correctly and I am off, thanks in advance for any suggestions.
 (G500-Alternator.jpg)
 (Wrong VR F00M145861.jpg)
Attachments
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 G500-Alternator.jpg (641KB - 1 downloads)
Wrong VR F00M145861.jpg (349KB - 0 downloads)
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
I have it now a picture of new and old alternator. |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
see my DIY posting
http://pointedthree.com/disc/forums/showthread.php?tid=17696&posts=... |
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
Thank you so much for you kind reply and help, was able to make do an install now. But still when machine started the voltage is 13V not 14.4, so maybe need to run new cable now too. |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
try to probe at the alternator B1+ terminal
Also I sand down the mounting points to give better grounding
Is the VR part number checked out w/ my posting? for 047 alt? |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
I cannot read your VR part number but the last digit must be a 4 so the VR may be incorrect. Where did you get this alt? from a reman shop? website? new stock from MB?
This could be the problem to your 13v dilemma.
Edited by autonovice 2/1/2011 2:54 PM
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
My VR I believe is 0124615047 ... I got the part at MB dealer, they stated its right from the VIN, but these geniuses also ordered me a belt tensioner that does not fit - they ordered me 113-200-01-70 so I can EASILY see them ordering me the incorrect item. It appears though that this can be in my favor since my stock only produced about 70-110 amps and this new one is like 90-150 so at least I want to keep this one, get proper VR and run with it. What should my VR be as an MB part number??? |
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
Ohh and it was remanufacturer stock from MB, they stated they could not get me a new one, only a reman unit... $88 core charge... |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
G-Wagen_enthusiast - 2/1/2011 1:09 PM
My VR I believe is 0124615047 ... I got the part at MB dealer, they stated its right from the VIN, but these geniuses also ordered me a belt tensioner that does not fit - they ordered me 113-200-01-70 so I can EASILY see them ordering me the incorrect item. It appears though that this can be in my favor since my stock only produced about 70-110 amps and this new one is like 90-150 so at least I want to keep this one, get proper VR and run with it. What should my VR be as an MB part number???
You gave me the alt number. Read my posting. The VR number is stamped on the VR.
The number should start with F xxxx
Edited by autonovice 2/1/2011 4:45 PM
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
Ohh, I see, its stamped ON the VR itself... darn, wish I would have got that before throwing it in the truck, will have to disassemble it and get to the VR then, but I did run some tests:
Voltage does seem to climb at battery terminal once engine started - goes from 13.3 to 13.6, then I also checked voltage at the B2+ (I wasnt able to get to B1+ but it showed connectivity during testing when it was out of car so I assume they are both the same thing) and it appears to be higher - 13.8 volts yet the little nodule + terminal IN the engine bay shows the 13.6, hmm, bad cable?? Okay, I will have to check in on what VR I have, do you have the part number for the VR I need by chance, so I can put an order in at the dealer for it? Sounds like I'll have to replace it either way. Thanks again for everything. |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
G-Wagen_enthusiast - 2/3/2011 12:15 PM
do you have the part number for the VR I need by chance, so I can put an order in at the dealer for it? Sounds like I'll have to replace it either way.
See the posting in DIY section. There is a corresponding VR for each version of the alternator.
Your should be
.........Bosch 150AMP / 0 124 615 047
.........Bosch Voltage Regulator(VR) : F 00M 145 382 |
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
So the F 00M 145 382 is the alternator number Bosch uses... there isnt a Mercedes part # for this one is there??? Its just that I dont know where to buy the part using the F 00M 145 382 number, a google search shows me some PDFs and this forum. |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
G-Wagen_enthusiast - 2/3/2011 3:26 PM
So the F 00M 145 382 is the alternator number Bosch uses... there isnt a Mercedes part # for this one is there??? Its just that I dont know where to buy the part using the F 00M 145 382 number, a google search shows me some PDFs and this forum.
Did you get a chance to take the alt out and read the VR number. If it Bosch, the number should start with F xxx
The VR is the piece includes the special plug housing. From looking at the pic of the new alt you posted, it is a Bosch VR
but I cannot make out the VR part number.
Anyway, see below for one of the places you can get a Bosch VR ... When I purchased my 2nd alt from a local reman shop,
I specifically asked for Bosch VR. They also bench load tested to 180A.
http://pointedthree.com/disc/forums/showthread.php?tid=13273&start=...
===========
Hope this helps anyone out there. If your interested in contacting Wagner Alternators in California, you can reach them at the information below. Its pretty simple to call them and get some amazing help from some VERY knowledgeable people. I worked with "Rick" and he was great.
Wagner Alternator
http://www.wagneralt.com/
Telephone: (800)345-5927 (Ask for Rick in Technical Support)
=========
Edited by autonovice 2/3/2011 8:05 PM
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
Did not have a chance to take out VR - may have to use vehicle this weekend... but did find some pics of it when I did take it out... Just curious, on my alternator as seen in picture on very top, is "B1+" and "B2+" the same thing??? IS the B2 then for an accessory battery or for a secondary battery by chance then? I wondered because as I tested the VR when I had it off, the B1 and B2 seemed to pass current through it, but maybe this changes as the alternator actually begins to spin and generate the current. So is connecting B1 or B2 essentially same? |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
I am not sure what B2+ is for. I assume it is the same as B1+. But it doesnt have enought stud height to accomodate a 2 gauge lug. |
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
Ahhh! I was just wondering, because when I ran my probe to test, I couldnt really get to the B1+ but I got to B2+ and it showed 13.89, but I know ppl getting like 14.4 so still off... while at the terminal on top near brake booster voltage was less, 13.6V so its probably cable and VR combination... |
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
Wait a minute... I spoke with Rick from Technical Services, he informed me my issue could be due to the fact that D ("idiot light") has not yet been connected since I am still waiting for the plugs from the dealer. Do you think maybe its not giving me 14.4 V because I did not connect yet the "idiot light" ??? Dash shows "battery charge" in red lettering during all drives, impossible to reset. I just thought idiot light is for a sensor and does not affect alternator operations, but Rick says it does, something about some A field or something, stated it may be trickle charging but not full charging, I have the connectors in, let me try to see if that solve my problem  |
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
OHhh no, it appears like I have got the incorrect VR! I took it out, the inscription reads F 00M 145 861. The correct one is then F 00M 145 382 ??? If I order this up from Rick for $100+ would this cure the problem??? I swear this problem has been crippling my wagen for the longest time and I just want it to go away. I am dealing with it for over 4 months now... by the way, any clue as to why it came with the F 00M 145 861 VR anyways??? What is that VR good for if simple spinning doesn't get it to produce 14.4 V ??? |
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autonovice
Elite Veteran
Date registered: Dec 2006
Location: New York City
Vehicle(s): '05 G55K, '92 350GDT
Posts: 684
| Re: Alternator replacement on 1999 G500 ???
Did you have to reclock your new alt?
Ask Rick to see what the current VR
crossref to any other MB models?
The current MB reman part for G500 from
2002 and up is A013154560280. I am not sure how
it will translate to a Bosch part 0 124 ... or similar
Check the MB reman catalog on page 21 on details
G500 part numbers
http://www.mbwholesaleparts.com/vcm/MBWholesaleParts/Files/Reman_Pa...
Check this posting for a discussion on MB reman
http://www.pointedthree.com/disc/forums/showthread.php?tid=17443&po...
You may be able to scrutinize your dealer to get back
your $100 for your VR. Hopefully a reman alt for a G500
comes with a correct VR and clocking.
Edited by autonovice 2/11/2011 5:20 AM
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G-Wagen_enthusiast
Member
Date registered: Jun 2010
Location: Midwest
Vehicle(s): 1999 G500
Posts: 22
| Re: Alternator replacement on 1999 G500 ???
By clocking I assume you mean the directions of the arrow type thing in relation to the mounting points, correct? As you can see from pic 3 the arrow appears to be pointing in the correct direction in relation to the mounting points, same as in picture 1 where the alternator on the RIGHT was described to have the correct clocking. Since the alternator came like that no re-clocking was required I assume. BUT the VR is definately not what you said it should be. I read the article on remanufactured goods by MB... I would have honestly bought a new one but that was not available as an option for me! If there is a new one option that would fit, give me the part number and I would gladly trade this one in for it! Anywho, I guess I will give Rick a call and order the new (CORRECT) VR then later today. Any clue as to whether the new 273 motor alternator would fit (A0131545602) I heard its 180 amps, would LOVe to have that in there |
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