Mercedes-Benz ML350 (2006-2010) Electrical Problems..

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jgm1937

Chesapeake, VA

#1 Sep 8, 2009
Since purchasing my 2006 ML350 about a year ago, I've been having some peculiar issues with the electrical system. I'd love to say that Iknew exactly where they were coming from, but to be honest, they almost seem to be "ghostlike" and mysterious in their causes.. However, one commonality that they all share is that they occur almost exactly when traversing high altitudes or in mountainous environments. Here's the details:
On April 24, 2009, as I was making my way up the mountains east of San Diego, CA (Imperial County) at about 4,500 feet when my dashboard indicator popped up with a "Check Engine Oil" warning." As I had just had the oil changed and refilled at the MB dealer only weeks earlier, I shrugged it off. I eventually checked the oil level once we stopped about a half hour later, and it turned out to be okay. I never gave it a second thought, because about a week later, the warning went away.
On September 3, 2009, as I was traversing the Blue Ridge Mountains of West Virginia / Virginia at about 3,500 feet when my dashboard indicator signaled three messages: "Brake Lamp, Right Substitute Lamp; Brake Lamp, Left Substitute Lamp; Brake Lamp Left, Substitute Lamp." I was immediately bothered by this series of messages so I stopped at the next exit to get some new bulbs. I replaced the two bulbs which were referenced, the Left & Right Brake Lamps, with exact replacements, the Sylvania 7506 (although I got the Long Life version, 7506LL). I tested them, and they still did not work. I assumed it was a fuse or relay that was blown. I checked to make sure that I still had brake lights, which I did (the combination "Tail Lamps" and the "High Mount Stop Light"), and continued on my way. The indicator warning message continues to come on every time I start the vehicle, and the only way to "clear" it is to acknowledge it with the steering wheel buttons.
On September 8, 2009, as I was crossing back from West Virginia / Virginia to head home (at about 2,500 - 3,500 feet), I had yet another electrical issue - the electronic climate control in the front center console area "stuck" at a constant temperature and fan speed (the coldest albeit). Even more, the lights and program control panel associated with the console were maximized at "Max Cool" with all bars illuminated, and the driver's side controls (Windshield, Center/Torso, or Feet directons) were unable to be changed or not illuminated. The passenger side front controls were able to be changed to different temperatures and directions. This problem continues to occur, along with the above issue with the brake lamps.
Does anyone have any ideas as to why this is happening? Is there some sort of gyro or altimeter that is being "tripped" when I go to higher elevations? I live at sea level along the coast (formerly West Coast, now East Coast), so altitude is not normally an issue for this vehicle. Is there some sort of reset or button/programming combination that can be done to circumvent this problem or eliminate it now? I am now outside of my original warranty (40,000 miles) by a few hundred miles, so taking it to the MB dealer is no longer an option unless I want to pay some serious $$$ for diagnosis. Any help is greatly appreciated!! If necessary, I can take some photos and post them to assist..
George

Portland, OR

#2 Sep 22, 2009
From what I heard when in higher elevation with low percent of oxygen, your oxygen sensor send out incorrect reading. I read some article in hiking magazine, some cars has this issue. Not just Mercedes. You might want to look into this yourself. Other issue, I have no idea. Good luck!!
BTW, I live in high elevation at 1200ft, and my key remote (ML350) doesn't work properly unless within 1ft away. When heading down to lower elevation, everything works. Never had any problem with Lexus or other Mercedes vehicle. Weird!!
tony

King Of Prussia, PA

#3 Mar 1, 2010
your brake light issue is in the connection of the bulp socket..MB makes a harness that will hardwire it to the tail lamp assembley. its a very common problem with 06 and 07 MLs.
FreeBenz

Panama City Beach, FL

#5 Nov 22, 2010
tony wrote:
your brake light issue is in the connection of the bulp socket..MB makes a harness that will hardwire it to the tail lamp assembley. its a very common problem with 06 and 07 MLs.
Can this be purchased at the Benz dealer or somewhere online? Please elaborate as my wife's 06 ML350 does the same thing.
Benzdriver

Brooklyn, NY

#6 Dec 23, 2010
jgm1937 wrote:
Since purchasing my 2006 ML350 about a year ago, I've been having some peculiar issues with the electrical system. I'd love to say that Iknew exactly where they were coming from, but to be honest, they almost seem to be "ghostlike" and mysterious in their causes.. However, one commonality that they all share is that they occur almost exactly when traversing high altitudes or in mountainous environments. Here's the details:
On April 24, 2009, as I was making my way up the mountains east of San Diego, CA (Imperial County) at about 4,500 feet when my dashboard indicator popped up with a "Check Engine Oil" warning." As I had just had the oil changed and refilled at the MB dealer only weeks earlier, I shrugged it off. I eventually checked the oil level once we stopped about a half hour later, and it turned out to be okay. I never gave it a second thought, because about a week later, the warning went away.
On September 3, 2009, as I was traversing the Blue Ridge Mountains of West Virginia / Virginia at about 3,500 feet when my dashboard indicator signaled three messages: "Brake Lamp, Right Substitute Lamp; Brake Lamp, Left Substitute Lamp; Brake Lamp Left, Substitute Lamp." I was immediately bothered by this series of messages so I stopped at the next exit to get some new bulbs. I replaced the two bulbs which were referenced, the Left & Right Brake Lamps, with exact replacements, the Sylvania 7506 (although I got the Long Life version, 7506LL). I tested them, and they still did not work. I assumed it was a fuse or relay that was blown. I checked to make sure that I still had brake lights, which I did (the combination "Tail Lamps" and the "High Mount Stop Light"), and continued on my way. The indicator warning message continues to come on every time I start the vehicle, and the only way to "clear" it is to acknowledge it with the steering wheel buttons.
On September 8, 2009, as I was crossing back from West Virginia / Virginia to head home (at about 2,500 - 3,500 feet), I had yet another electrical issue - the electronic climate control in the front center console area "stuck" at a constant temperature and fan speed (the coldest albeit). Even more, the lights and program control panel associated with the console were maximized at "Max Cool" with all bars illuminated, and the driver's side controls (Windshield, Center/Torso, or Feet directons) were unable to be changed or not illuminated. The passenger side front controls were able to be changed to different temperatures and directions. This problem continues to occur, along with the above issue with the brake lamps.
Does anyone have any ideas as to why this is happening? Is there some sort of gyro or altimeter that is being "tripped" when I go to higher elevations? I live at sea level along the coast (formerly West Coast, now East Coast), so altitude is not normally an issue for this vehicle. Is there some sort of reset or button/programming combination that can be done to circumvent this problem or eliminate it now? I am now outside of my original warranty (40,000 miles) by a few hundred miles, so taking it to the MB dealer is no longer an option unless I want to pay some serious $$$ for diagnosis. Any help is greatly appreciated!! If necessary, I can take some photos and post them to assist..
Welcome to Mercedes thats all i can say every time i try to go to the dealer they always try to charge me crazy money for small things. serge @ www.benzdriver.com
Lawrence111

Fremont, CA

#7 May 19, 2011
I just replaced the car battery of my ML350 at a Mercedes dealership. It cost me $700! Is this normal??
jbb

Oceanside, CA

#8 Sep 15, 2011
We have a ML 350 that had the same check engine light problem for the oil. Mercedes Benz had a recall on the ML for the oils sensor unit in the oil pan. We took ours into the dealership and they replaced it as a recall item. The check engine light stopped coming on. They said it was caused from the type of oil that was used. What ever.
I am having the brake light, alternate brake light problem now also.
Is there a place to order the bulb holder?
Thanks
Yes

Las Vegas, NV

#9 Oct 12, 2011
Lawrence111 wrote:
I just replaced the car battery of my ML350 at a Mercedes dealership. It cost me $700! Is this normal??
Yes
Yes

Las Vegas, NV

#10 Oct 12, 2011
YES
Max

Kansas City, MO

#11 Nov 3, 2011
I have the same problems!!!!
This is my 4th ML and I have a 1995 SL 320 and a 2006 R350.
The ML is driving me crazy!!!! The light socket for the brake light has been modified so many times.It is ok for 1 week then it comes back...
Last night I had a total system stop( but the car would drive) for 3 hrs of windshield wipers, locks and a SRS message strangely possessed. Lights and horn would go on and off at any action i would take from the key. It was cold and wet. Was able to drive home...at midnight after crawling into the trunk to open my gas tank door because my gqas gauge was not working as well.
This morning the car is as good as new...acting if nothing ever happened....went to the dealership...they had no idea.....uhmmmm....can they goggle this car? Are only the customers the researchers? Funny...oh yeah, my car just went out of warranty..go figure
Obama sucks

Carlsbad, CA

#12 Nov 13, 2011
(battery)$700. heck no !!.... mine was only $ 200. new battery. never go to the Dealer !! they rip you off on everything .
Obama sucks

Carlsbad, CA

#13 Nov 13, 2011
<<< Also Theres a recall on the Housing of the back break lights 2006 ml350 ..they burn out. I had mine done !!
Lynda

Baton Rouge, LA

#14 Nov 28, 2011
Does the recall go on to 2008? I had the tail light assembly replaced at about a year but now it's acting up again.
Jimmy-

Santa Maria, CA

#15 Dec 1, 2011
Warning lights show the backdoor is opened on passenger side on my 2008 ML 350 when they are not opened. Code showed there was low power to door latch. They replaced the door latch part that cost $480.00 for total of $1031.00 and it corrected the code problem error but did nothing for the warning lights. They are now going to trace down wiring for which sounds like a lot fiddleing around and a lot of money. I couldn't care less about the warning light and would like it disconnected but they tell you cannot do this. Any thoughts?
Dave

Mocksville, NC

#16 Jan 26, 2012
Very strange things going on in our 2006 ML500. Front and rear wipers quit working at same time. Rear hatch quit working yesterday. Many warning messages. Last week we heard a buzzing/clicking sound at rear hatch that kept repeating for some time. Dealer sAys it may cost 1000's to locate problem(s). Does anyone have any suggestions? Thank you.
Jim never again

Owings Mills, MD

#17 Feb 3, 2012
Once there was a man who bought a Mercedes
but the car killed him.
Unfortunately he died before he could tell
his sad story.
So like the emperor's cloths they still rush
to buy the car's glory.
Oh what a worry they will suffer
when the tires come off the rim.
Oh thank God for triple AAA.
One AAA fixed up my wheels
while the other AAA got me back on my heels.
So now the bad news is I can't have a drink
to the worst car ever made I think.
Jim never again

Owings Mills, MD

#18 Feb 3, 2012
Merecedes do sell
and I wish they go to hell
Texas Tee

Houston, TX

#19 Feb 21, 2012
Anyone having a problem with the "camshaft poisition correlation Bank 1, Sensor A and Sensor B"? That's the explanation of Code 016 and 017. Been told that many a ML350 have this problem and MB won't issue a recall. Heard there might be a class action suit filed for this because MB has known about the prob and continue to put inferior parts in their cars. This repair is $5,000+ and usually happens around 80k miles. My car just turned 74k. Any input would be appreciated.
Bill G

Blacksburg, SC

#20 Feb 25, 2012
Lawrence111 wrote:
I just replaced the car battery of my ML350 at a Mercedes dealership. It cost me $700! Is this normal??
i have the same car I just changed mine and it was 253 for the battery and 50 for labor at Baker in Charleston. The place in Myrtle Beach (MB dealership) was 58 more. They are always more but 700 sounds way to high. Good luck. Bill
Bill G

Blacksburg, SC

#21 Feb 25, 2012
BLUETOOTH. How can I add bluetooth for my phone in my 06 ML350? Please send answer to topsider2000@yahoo.com
Thanks Bill

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