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2002 Ml320 w163
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Discussion Starter #1
I'll start from the beginning. I pulled in my driveway from a 4hr trip. My son moved my car and the brakeline busted but I didn't know it. I went to leave and started backing slowly out of my driveway, applied my brakes to put the car in drive, I had no brakes. So scared without thinking I put the car in park. I did hear the linkage clicking. My bf came out and checked and there was no brake fluid. This is when we realized the brakeline had busted. So he pulls it in the driveway. It sat for about 3 weeks before I could get the brakeline bent to shape and replaced at my home. After the brakeline was replaced, we went to bleed the brakes. Next he was going to test drive it after it was done. It wouldn't start. We did try to jump it from his truck but without the keys in the ignition until I tried to start it. The red led light wasn't blinking. Start error appeared where mileage was at. We bought a brand new battery. It would start and die like it was in theft mode. All other lights on the dash, radio, heater fan, interior lights and external lights work. I had 3 different scanner tools hooked up to it to find codes. It didn't throw any codes. I went and had a new key made...starting with the least expensive and the new key didn't start it. So my next step is to try a used aam. Remembered when I 1st bought this ml (over 2yrs ago) it went into theft mode and we were told to unhook the positive battery cable for a few days to reset the computer. It worked. I had it do this to me about a year ago for a couple hours while I was out shopping but it finally started after hours of patience. Can anyone help me!? It has had the negative post off for about a month and the headlight switch on...I was told this will drain everything and make the computer reset. I haven't tried it since. I also seen where someone said to make sure the aam is getting a good solid connection. Any help is greatly appreciated! Thank you from Ohio!
 

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Dallas, Texas
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Next he was going to test drive it after it was done. It wouldn't start.
That's when shit hit the fan. Attempt to start with dead battery. Without getting technical go to your MB dealer and order spare key.

As far as scanners. You need one that can display life data in DAS.

Update your user profile with detailed vehicle info. Year model and production date.
 

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2003 ml500, 2004 ml350
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931 Posts
So my next step is to try a used aam.
Just need to clarify this did you replace the AAM? or were you thinking of replacing it?

Also when you got the spare it key it was ordered to your vin? Correct? Because a key can be made it will open the door but it will not start, unless it is a transponder/valet/mickey mouse key ordered by the dealer.
 

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2002 ML320, 2003 A160, 2002 ML500, 2018 GLS350d
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Bonita, if the new key won’t start it, or make the LED blink, then you might need a new transponder coil (a.k.a. DAS ring/module assembly). The only other possibility is that your DAS module (plugged into your EAM) is not powering up. Did it rain during the past month? Water intrusion behind the dashboard has caused “start error“.
 

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2002 Ml320 w163
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42 Posts
Discussion Starter #7
Just need to clarify this did you replace the AAM? or were you thinking of replacing it?

Also when you got the spare it key it was ordered to your vin? Correct? Because a key can be made it will open the door but it will not start, unless it is a transponder/valet/mickey mouse key ordered by the dealer.
  1. I was thinking of replacing the aam. I did have the key coded to my vin number. I drove 2hrs to the Mercedes Benz dealership in Dublin showed my DLs and title. Paid for the key then drove 2hrs home. 3 days later drove back to Dublin to pick the key up and then drove back home.
 

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2002 Ml320 w163
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Discussion Starter #8
I live in Ohio so I'm sure it has rained. I have noticed on my drivers side when it rains hard I have a damp floor board. I had the moon roof blown out with an air tool and I even ran weedeater string down the overflow tubes. I have watched every youtube video posted.lol
Bonita, if the new key won’t start it, or make the LED blink, then you might need a new transponder coil (a.k.a. DAS ring/module assembly). The only other possibility is that your DAS module (plugged into your EAM) is not powering up. Did it rain during the past month? Water intrusion behind the dashboard has caused “start error“.
 

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2002 Ml320 w163
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42 Posts
Discussion Starter #9
Bonita, if the new key won’t start it, or make the LED blink, then you might need a new transponder coil (a.k.a. DAS ring/module assembly). The only other possibility is that your DAS module (plugged into your EAM) is not powering up. Did it rain during the past month? Water intrusion behind the dashboard has caused “start error“.
new transponder coil (a.k.a. DAS ring/module assembly) do you mean the ring that sends the message to my immobilizer or am I in the wrong area?
 

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2003 ml500, 2004 ml350
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new transponder coil (a.k.a. DAS ring/module assembly) do you mean the ring that sends the message to my immobilizer or am I in the wrong area?
Yes exactly what DrX is talking of 163-545-91-32 is the part number. You need to fill out your profile with year and model that way folks can get you the correct number what I gave is 2001 you need to double check for your year. Pick a part yard will be cheapest route about 150.00 from online dealers. Use code Benzworld2017 at mboeparts.com for free shipping.

Also with the key if that was the process you have a rfid key that should be matched, Everyone I ordered worked with out issue but the dealer said on occasion they don't. But sounds like the old and new key is not working?
 

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I live in Ohio so I'm sure it has rained. I have noticed on my drivers side when it rains hard I have a damp floor board. I had the moon roof blown out with an air tool and I even ran weedeater string down the overflow tubes. I have watched every youtube video posted.lol
Everything you did was correct but you could have a crack in the tube or a connector or the ell that mounts to the gutter especially if there is still an issue.
 

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2002 Ml320 w163
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Discussion Starter #12
Everything you did was correct but you could have a crack in the tube or a connector or the ell that mounts to the gutter especially if there is still an issue.
Its done that since I purchased the vehicle and its never caused any "start error". Before when I mentioned it went into theft mode after I 1st bought it...I don't remember any "start error" just it would start and immediately die. Now when I mentioned it wouldn't start while I was out shopping after owning it about a year...the red led light wasn't blinking but started after me trying it off and on for about 2hrs. I did have a key specialist come and give it a go even after I told him that there was no way for him to fix it...he stated if he couldn't fix it he wouldn't charge me. He brought a scan tool and finally said it said it didn't recognize the key...it wasn't being read. The place where I purchased my car came with 2 different scan tools 2 different times and the last time it threw a code for the transmission but all 3 other times threw no code. Which made me believe I did something when I threw it in park while rolling backwards.
 

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I don't think even if there is transmission damage that would cause the car not to start, it may go to limp mode but it should still start.
 

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Discussion Starter #14
I don't think even if there is transmission damage that would cause the car not to start, it may go to limp mode but it should still start.
  • I think with the wet floor board I am going to take the foot well covers off this spring and make sure the tubes haven't came loose from where they drain out from the fender well. I'm doing all this on my own and was just lazy this summer but I plan on getting down and dirty this spring and learning all I can. I know the bas/esp light and the ets lights have came off and on since I purchased the car.
 

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Discussion Starter #15
Also since I bought it there was a hissing of air when you'd let off of the brake. I figured that one out...its the rubber seal located above the brake peddle and have the part to fix it but no one wants to change it since they say you have to disconnect the computer. So I bought seal maker to do it myself this spring. I figured that may be why the bas/esp and ets lights might be coming on. I do appreciate all the help and advise! I love this web site!
  • I think with the wet floor board I am going to take the foot well covers off this spring and make sure the tubes haven't came loose from where they drain out from the fender well. I'm doing all this on my own and was just lazy this summer but I plan on getting down and dirty this spring and learning all I can. I know the bas/esp light and the ets lights have came off and on since I purchased the car.
 

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2002 ML320, 2003 A160, 2002 ML500, 2018 GLS350d
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If you have wet floorboards, you must check and clear the cowl drains, under the plastic grille in front of the windscreen.

The EAM sits up under the dashboard, somewhere above the steering column (I gather, in LHD MLs). This has a DAS module with immo codes plugged into it. Unplug and remove the EAM, inspect for water damage. Unclip and remove DAS module (the one inside the EAM), check connectors, clean and dry out. Use hairdryer.

Plug everything back in, and don’t forget to pray as you turn key to start.
 

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Discussion Starter #17
If you have wet floorboards, you must check and clear the cowl drains, under the plastic grille in front of the windscreen.

The EAM sits up under the dashboard, somewhere above the steering column (I gather, in LHD MLs). This has a DAS module with immo codes plugged into it. Unplug and remove the EAM, inspect for water damage. Unclip and remove DAS module (the one inside the EAM), check connectors, clean and dry out. Use hairdryer.

Plug everything back in, and don’t forget to pray as you turn key to start.
I will try this once the weather in Ohio get a little warmer it is so cold and rainy right now. Thank you for all your help. I'll try that 1st then I'm going to try to make sure the aam is dry and has a good connection and lastly if that don't work I'll order a new das transponder ring. Thank you again!
 

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Here’s the relevant thread, about leaky sunroof or blocked cowl drain causing “start error”: Ml55 - DAS / Key / Transponder

In your 2002 ML, AAM in the engine bay fuse/relay box doesn’t cause start error. The immo functions were re-rerouted to the EAM, inside the cabin under the dashboard from MY2000 and later.
 

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Bonita

Your in good hands here all we ask in return is to post back, once solved letting everyone know what the solution/s were.
You will not believe how many times the finial solution never gets posted, that does not help anyone.
 

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2002 Ml320 w163
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Discussion Starter #20
Bonita

Your in good hands here all we ask in return is to post back, once solved letting everyone know what the solution/s were.
You will not believe how many times the finial solution never gets posted, that does not help anyone.
So what is in your opinion wrong with my car? I did post my vin number. I seen my delivery date...is that the manufacturers date or will my vin be enough? If its the das transponder ring...do I have to have it programmed at the dealership?
 
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