2001 ML 430 Just Dies
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2001 ML 430 Just Dies
Hello all my first post.I have a 2001 ML 430 and recently it has developed a problem it has now happened 4 times. While driving but not at speeds the car will just up and die a couple of times while sitting at a signal another time at low speed in a drive thru and then coming out of work wouldn't start. Once it dies you have to wait anywhere from 3-5 minutes before it will start again which is like an eternity at a busy signal when you try to start it again the starter will just keep going until you turn it back off but after waiting it will just fire up like nothing ever happened.I talked to couple of mechanics one of them put the scope on but no codes and did not know what was wrong the other one says it is a crankshaft positioning sensor the car has a warranty but he said will not cover because it is not a positive diagnosis. Can anyone help me please as this is a very dangerous problem and I don't just want to start replacing sensors at couple hundred dollars a pop if that is not the problem.Thanks Charles
MBWorld Fanatic!
Joined: Nov 2001
Posts: 4,260
Likes: 6
From: Philadelphia area
2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
Sounds to me like a CPS as they do not throw a code. There are several other items that could cause it but they would throw a code. Why not have it correctly diagnosed at an MB dealer with the Star system. This is the only way you will find out and get it fixed.
Senior Member
Joined: Jul 2002
Posts: 379
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From: middle o' ma
15 AMG S63 4-matic coupe
no code on crank sensor
Hello all my first post.I have a 2001 ML 430 and recently it has developed a problem it has now happened 4 times. While driving but not at speeds the car will just up and die a couple of times while sitting at a signal another time at low speed in a drive thru and then coming out of work wouldn't start. Once it dies you have to wait anywhere from 3-5 minutes before it will start again which is like an eternity at a busy signal when you try to start it again the starter will just keep going until you turn it back off but after waiting it will just fire up like nothing ever happened.I talked to couple of mechanics one of them put the scope on but no codes and did not know what was wrong the other one says it is a crankshaft positioning sensor the car has a warranty but he said will not cover because it is not a positive diagnosis. Can anyone help me please as this is a very dangerous problem and I don't just want to start replacing sensors at couple hundred dollars a pop if that is not the problem.Thanks Charles
it will crank till the cows come home but not fire. after a while it may start.
the crank position sensor tells the engine computer where it is in the cycle and EVERYTHING is tied off of that event. no CPS no nothing.
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Joined: Oct 2010
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1999 CLK320
1999 CLK320 dies
i want to thank everyone that posted info on this forum because thanks to that i saved myself a lot of money and time. my 1999 clk320 was dying more often, like others said. starts, goes 10 minutes, dies, starts after one hour, goes 5 minutes, dies, repeat. very frustrating. i read all the posts, realized that it was probably the crankshaft positioning sensor, ordered it online from a company in the u.s. (i am in mississauga, canada) and it cost me less than 50 bucks plus shipping, so about 73.00 cdn dollars. got it in 4 days by USPS and took me 20 minutes to install it, following the information provided in the forums (very helpful with pictures) i bought an E8 torx female socket, with a socket wrench extension that was bendable (very important) and changed it out in 20 minutes and WOW, no more troubles. very happy!!! so thank you again for all the posts to do with it on this site. Just make sure you order the right CPS because for some vehicles there are two different ones, went by the engine model number for my benz.
happy owner
happy owner
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Joined: Apr 2007
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
Good job
The tip on ordering is to look at the cps that is in the car and see how many 1 or 2 clip on lock for the harness some places don't do vins
Makes you feel good when you do the diagnosis and repair and it works
Now change your transmission fluid and filter it is past due
Makes you feel good when you do the diagnosis and repair and it works
Now change your transmission fluid and filter it is past due
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Junior Member
Joined: Oct 2010
Posts: 29
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From: Denver
'99ML430, '02ML500, '88 XJS, '00 CLK 430, 2 steam turbine generators, & 2 GE 7FA.01 gas turbines
Have a look at, or replace the main relay(s) in the fuse box. I was suprised to find out just how junkie these are. And at $20 for an abs pump relay at the dealer??? That must be a .75 cent part to begin with.
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Member
Joined: Oct 2009
Posts: 80
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From: Orange, CA
Mercedes ML430
is it possible that it is the mass air flow sensor? I had the same problem with my 2001 ML 430 and replaced the CPS but I still get a check engine light and PO codes 170 and 173. I do not know what those are but had the same problem.
Super Member
Joined: Nov 2004
Posts: 687
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From: So Cal
07 GL450, 91 NSX, 12 Prius
hot "not" start is usually a CPS issue.
cps & MAF problems should throw a code.
I would do the following.
CPS - should only cost $250 to replace with labor
MAF - $200 part DIY replacment. easy.
Throttle body - $500.
$350 part sand $150 labor
TB issue will make bad idle and stall the car.
I had to change my TB.
cps & MAF problems should throw a code.
I would do the following.
CPS - should only cost $250 to replace with labor
MAF - $200 part DIY replacment. easy.
Throttle body - $500.
$350 part sand $150 labor
TB issue will make bad idle and stall the car.
I had to change my TB.
MBWorld Fanatic!
Joined: Apr 2007
Posts: 6,171
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
your
0170 0173 is the maf. Although that alone won't cause the stall hot start issue like the op.
If you can change a maf $145 at autohausaz.com you can change a crank position sensor about 60 bucks and almost as easy a diy.
If you can change a maf $145 at autohausaz.com you can change a crank position sensor about 60 bucks and almost as easy a diy.
