jwb007

I saw this post of yours. Where's location of this sensor on w209?

jwb007

*****""update****"""
I found the sensor next to the passenger side fog lamp. It appeared to have moister. It was cleaned with crc and reconnected.
The battery is totally dead. I will exchange it out tomorrow.
Now, from your perspective, do you think this may solve this no start.

Respectfully and valued
Arjuna

jwb007

*"""""update""*""""
I was too anxious, thefore I tried to have vehicle jumped.The bad new, is it still wouldn't start or crank and suction fan still runs @key position 2. The outside temp was corrected. Battery is still to weak to lock/unlock doors.

Hare Krishna

jwb007

****update****"
Good afternoon all.
I took the battery to be tested and recharged(24hrs).It reads 4.1 @testing.This is a virgin battery from the store shelves, it never took a crank. It's been installed 17dys. Immediately after installing, it dropped from 12.8 to 12.4, with key in position #2, when suction fan came on. Now it's 4.1.

Respectfully and valued
Arjuna

Fatz

If you're saying your battery voltage dropped from 12.4 volts to 4.1 volts in the time it took for you to try starting it, I would say there is a serious short circuit. Most components would smoke with that much current flowing through it and it would burn the offending component to an open circuit condition pretty quickly. So it would likely not be electronic components that have shorted. It would probably be a device with relatively high mass for it to dissipate the heat caused by that kind of a current draw. Since your fan is starting, it could be the culprit. Is there a way to disconnect the fan?

Even if the shorted device does not open, you should be able to smell that much heat being radiated/dissipated.

jwb007

"you're saying your battery voltage dropped from 12.4 volts to 4.1 volts in the time it took for you to try starting it"
No. The battery dropped to 4.1 after 17dys. It however, did dropped, upon instaltion from 12.6 to 12.4, after the key was turned to position 2.
I appreciate both your suggestion and time for responding.
I will attempt to disconnect the fan when I install the recharged battery.
Respectfully and valued
Arjuna

jwb007

Hello all, hope all is well with all of you. I saw this video, an hoping it may help my no start issue

jwb007

**""""update'''''''
The vehicle was diagnosed earlier this evening by a technician.
Fuseses, relays, harnesses and sockets, power source to and from the sam, etc. are all fine.
ECU was removed for inspection, for water damage and internal disconnect/broken parts. All good.
Tech notice that he was getting a rev 5.0 from a sensor, went keys wasn't in the ignition. He wasnt sure if that's common on these vehicles.
While accessing the battery drain of .30, the culprit was fuse#57.
The vehicle still will not start and suction is still running.

Once again, any new suggestions

Respectfully and valued
Arjuna

Rudeney

OK, that statement bothers me. If he's a skilled MB tech, he should know. What sensor was that, by the way?


Fuse 57 is for the EIS (ignition switch) and the steering column module. 0.3 amps on that is not a lot. The EIS will draw some current at rest, but I am not sure if it's normally that much.

With the suction fan still running on high, there is still an issue with the ECU. One thing you might try is unplugging all the coils and see if the suction fan still runs like that. I have seena s horted coild cause issues like this, but it usually causes a blown fuse (53, I think).

jwb007

Thank you for responding. I thought you may have gotten fed up with me. Unsure of the sensor, they were on the top front of the engine. I suspect, that he's not MB familiar, for I sent him that video from scannerdanner, and he was trying every step in the video.
I was told by another MBW member, that it is the Sam module. What's your thoughts on that?
I will unplugged the coils sometime this week.
Have a great week.
Respectfully and valued
Arjuna

Rudeney

I strongly suspect the SAM, especially with the strange lighting behavior.

jwb007

Thank you as always for your recommendations. Are you aware of a shop that I can send to for repairs or should I just shop for a used one?

Respectfully and valued
Arjuna

Rudeney

If it is the SAM, you can drop in a used one. Just get one from a car with he exact same options and a MY2005+.

jwb007

Thank you.

m1mmmm

Have you tried using the other key to start the car?

jwb007

Thanks for responding, yes, I have.

Respectfully and valued
Arjuna

m1mmmm

Well, worth a try. When mine would crank but not start intermittently the fuel pump was replaced but didn’t fix the problem, then the rear SAM was replaced, didn’t fix the problem, several months later (and MB rep involved) the ECU was replaced and that fixed it. Oh, and the whole ignition/keys/theft deterrent systems and fuses, wires, and maybe an exorcism performed, all with no results as well. Whatever part you switch out next make sure you keep your old parts. Good luck, it’s frustrating. Mike.

jwb007

Yes, very much so. 34dys and counting. I least in your scenario, it cranked. While this does nothing, except for the running of the suction fan. I will not forgive myself, if it's the ECU. I can't fathom, that water can be such a nuisance to these components.
I am in denial, I want to belive it's something simpler than ECU. I praying that water shorted out the communication component to the ECU. I have no income therefore cannot get it properly diagnose. I have an ecar to use in the interim.
I have a MBII scanner, however cannot connect due to ECU. Am praying that someone with extensive knowledge in the Tampa FL area's, will hear my cry and come forth. Lol
Respectfully and valued
Arjuna

m1mmmm

Since budget is a concern maybe you can find someone in your area parting out a similar model and get a working ECU? I believe SAM’s and maybe ECU’s can be rebuilt? Maybe someone with more info about this can post?

jwb007

Thank you. Yes, many have The likes of Rudney, SRToroto, Glynn and mustofaberg. They all encompass the Sam module & ie ECU. I am just in disbelief that in that short time frame, of hosing the leaves out, that these components can get this severely damage, without prior warnings or symptoms.

m1mmmm

This?

https://www.cargurus.com/Cars/Discus...22677_ds605388

With the battery issue maybe you lost key memory and need the ECM flashed?

m1mmmm

Fuse in SAM?

Google “Mercedes W209 no power”

When I had my issue I didn’t find these items but they could be worth checking out.

m1mmmm

Google “Mercedes w209 won’t turn over”

jwb007

I truly appreciate your time, consideration and effort towards this situation.I guess, you can connecting with it, since you been there and have done that. Intersting, the Bhagawat Gita, it stated, that when we naturally mirror others emotions, we are spiritually living in the material in existence. Familiar saying, putting yourself in someone else's shoes.
Hari Bol

jwb007

********Update*********
While I accepted the overly supportive suggestion, that it's the Sam module I have since ordered a used one from eBay
How do I manually move wipper's linkage out of the way? Since the vehicle won't turn on or startup, for it to be moved electronically.
Also, the suction fan still runs when key is in position#2, dispite all the harnesses from the top of the module and the ECU are disconnected. Is this a normal
symptom? Or do I have more issues?

Respectfully and valued
Arjuna