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1966 200 Diesel; 1985 500 SEL (wrecked); 1991 420 SEL; 1979 280E (Home Market); 1993 190E 2.6
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Discussion Starter · #1 ·
Went to go blow the leaves out of the carport today and began by moving the 91 420 into the garage so I wouldn't get stuff all over it.

As usual it started right up, moved the 30 feet into the garage. About an hour later I went to go park it back under the carport and no start.

It cranks, no pops, no clatter, no unusual noises. Battery is 2 months old, and the correct group. Its an ASR car, unfortunately, but what can you do. I am going to see if I can run the pump by bridging the appropriate terminals at the FPR as I had a hard time hearing it when turning on the key because of the buzzer. Assuming it runs when I bridge the terminals I realize that there is a bit more that could be wrong due to it being an ASR model than just the usual FPR, EZL, OVP suspects.

Any thoughts as to how to proceed troubleshooting an ASR model?

-Wolf
 

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1989 560SEL, 1988 300SEL, 1979 Toyota Cressida MX32, 2006 F150 Lariat
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You're first idea is a good place to start, I would check the battery connections on the +(positive)side as there are 2 red wires that are held to the terminal that control the FPR. make sure that those are tight and have a very good connection. Someone who knows more about it will probably chime in and tell you more than I can, good luck with the fix.
 

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1966 200 Diesel; 1985 500 SEL (wrecked); 1991 420 SEL; 1979 280E (Home Market); 1993 190E 2.6
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584 Posts
Discussion Starter · #3 ·
OVP fuse good, Positive battery terminal cables snugged well, pumps and engine run with FPR jumpered.

So I still don't know if its the FPR ot the ASR thats giving me trouble. Anyone know how to start narrowing it down? FPR # is 003 545 25 05.

-Wolf
 

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1966 200 Diesel; 1985 500 SEL (wrecked); 1991 420 SEL; 1979 280E (Home Market); 1993 190E 2.6
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584 Posts
Discussion Starter · #4 · (Edited)
I'm gonna go ahead and replace the FPR I guess. My guys can probably have one here for me in a day or two, as I doubt they have it in stock. I'll go over and ask in the morning.

Is there any aftermarket cheapo FPR's out there that I should avoid? The one that came out has a mercedes logo on it and the pins are rather oxidized on their upper halves so I imagine it could be original. I would rather spend 90 bux on a quality OE unit than 50 on a POS.

To add insult to injury the only other M-B FPR I have here is one from a Gen 1 500. It has 3 or 4 less pins on it and a much different P/N. Guess it goes back on the shelf until the 500 is running in something again. :-(

-Wolf
 

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1990 Euro 560SEL
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433 Posts
Stock up your FPR

I'm gonna go ahead and replace the FPR I guess. My guys can probably have one here for me in a day or two, as I doubt they have it in stock. I'll go over and ask in the morning.

Is there any aftermarket cheapo FPR's out there that I should avoid? The one that came out has a mercedes logo on it and the pins are rather oxidized on their upper halves so I imagine it could be original. I would rather spend 90 bux on a quality OE unit than 50 on a POS.

To add insult to injury the only other M-B FPR I have here is one from a Gen 1 500. It has 3 or 4 less pins on it and a much different P/N. Guess it goes back on the shelf until the 500 is running in something again. :-(

-Wolf
No point of going with aftermarket FPR now that Mercedes has droped the price of the genuine FPR so much it's cheaper than the aftermarket.

The last I check the genuine FPR can be had at genuinemercedesparts.com for $64!!!, that's cheaper for what you usually pay for a KAE (the one to avoid) on e-bay.

FYI, I paid over $300 Cdn for a genuine FPR a about 4 years at local dealer for genuine one. So grab it while it's cheap.
 

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1966 200 Diesel; 1985 500 SEL (wrecked); 1991 420 SEL; 1979 280E (Home Market); 1993 190E 2.6
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584 Posts
Discussion Starter · #6 ·
Thanks for the tip on the pricing Mike!

I am heading over to my parts guys in a little while here to see what they can do. If they can't help me I'll look into the one you mentioned.

-Wolf
 

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1966 200 Diesel; 1985 500 SEL (wrecked); 1991 420 SEL; 1979 280E (Home Market); 1993 190E 2.6
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584 Posts
Discussion Starter · #7 ·
70 bucks, OE part, be here at 8am. Sometimes my parts guys amaze me. Hopefully thats all it needs.

-Wolf
 

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1966 200 Diesel; 1985 500 SEL (wrecked); 1991 420 SEL; 1979 280E (Home Market); 1993 190E 2.6
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Discussion Starter · #8 ·
Well it took my guys a day longer than they thought to get me the part, but it arrived this morning. Installed it and she fired right up like she usually does. Kind of a releif that it was just the FPR and not related to ASR.

The replacement was identical to the original with one exception. The P/N was one digit different. I would imagine its a difference in rev limit or something like that. Since I drive like I am 100 years old I am not really interested in high rev performance, but that being said I am curious if anyone knows the difference between these two part numbers.

Original part: 003 545 25 05

New Part: 003 545 24 05

Thanks in advance.

-Wolf
 

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1989 560SEL, 1988 300SEL, 1979 Toyota Cressida MX32, 2006 F150 Lariat
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Glad to hear it was just the FPR and not something major like the CPS.
 

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1990 Euro 560SEL
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Wrong FPR

Well it took my guys a day longer than they thought to get me the part, but it arrived this morning. Installed it and she fired right up like she usually does. Kind of a releif that it was just the FPR and not related to ASR.

The replacement was identical to the original with one exception. The P/N was one digit different. I would imagine its a difference in rev limit or something like that. Since I drive like I am 100 years old I am not really interested in high rev performance, but that being said I am curious if anyone knows the difference between these two part numbers.

Original part: 003 545 25 05

New Part: 003 545 24 05

Thanks in advance.

-Wolf
Not sure what the impact this will have, but what they got is the FPR for the 6-cylinder 300SE/SEL model. But you sure got hell of deal though, unilike the 8-cylinder FPR, the 6 cylinder FPR is worth $182.00 and they sold it to you for $70.

Still I would find out what impact there will be putting in the 6 FPR in a 8 cylinder engine, besides the different cut off point.
 

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2011 GLK350,1998E300D, 2004SL500, 2006CLS500,2006ML500,2006R500, 2002 S55AMG
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when I first read that article I thought the car died and went to heaven..lol
 
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