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Mercedes-Benz R-Class Electrical Problems
by pf_flyer HOST
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Aug 28, 2006 (6:21 am)
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Have an electircal problem with your vehicle? This is the place to work it out.
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- #2 of 23
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Problems with my R350
by mejo
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Jun 27, 2006 (5:05 am)
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Has anyone has any electrical problems with their R350? I have the Saks Fifth Avenue edition and the tail gate motor burned out last week and now the battery light and brake light have come on. The service department said they do not know what the problem is and want to drive it for a while. I traded my ML for this beautiful car last November because of a lot of problems with it. I don't think the dealership is particularly excited to see us again.
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- #3 of 23
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Re: Problems with my R350 [mejo]
by nomorebenz
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Jun 27, 2006 (1:25 pm)
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Replying to: mejo (Jun 27, 2006 5:05 am)
My tailgate had to be reprogrammed. Works ok now. I have only about 2K miles. No other notable electrical issues other than sensitive anti-pinch mechanisims in the rear quarter windows during the winter.
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- #4 of 23
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Re: Problems with my R350 [mejo]
by albell
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Jun 27, 2006 (5:07 pm)
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Replying to: mejo (Jun 27, 2006 5:05 am)
I believe there are one or more service bulletins out on the tail gate issue, so you are not alone. I am 10,000 miles in and no real issues.
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- #5 of 23
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Re: Problems with my R350 [albell]
by benzster
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Jun 28, 2006 (7:53 am)
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Replying to: albell (Jun 27, 2006 5:07 pm)
No problems with mine either.
I have seen a vehicle with this issue. The bullitin states adjust latch/ do not replace. We tried to adjust 4 times and ended up installing a new latch to remedy........
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- #6 of 23
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Re: Mercedes-Benz R-Class Electrical Problems [pf_flyer]
by ccgw
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Jan 02, 2008 (1:42 pm)
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Replying to: pf_flyer (Aug 28, 2006 6:21 am)
I do have problems with the rear left taillight. The bulb burnt out prematurely with dark metal vapor on the inside of the bulb. So, I tested the power supply with the good bulb from the right. The bulb did not light up (although I have noticed before I found the browned out bulb that the light would either be dark or slowly come on with a dull glow from time to time when I was following the R350). Took it to the dealer and they said it was a bad bulb and replaced it. Several months afterwards the same thing happened with no light from that rear red light. Something weird that I also noticed was the yellow light at the left coming on sporadically. Took it to the dealer and they had to order a new socket (?) WHICH IS ON BACK-ORDER!!! It has been over a month and they still don't have it. I think it is risky to drive the car with a bad red taillight, not to mention risk of getting a ticket? Does anyone know of such issues with the light? What action can or should I take?
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- #7 of 23
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Re: Mercedes-Benz R-Class Electrical Problems [pf_flyer]
by koolkat1
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Mar 21, 2008 (9:35 am)
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Replying to: pf_flyer (Aug 28, 2006 6:21 am)
YES!
We had a dvd player that crapped out and the battery keeps draining. The dealer has had the car for over a week and they have no idea why this is happening.
And come to think of it, the hatch doesn't always close properly.
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- #8 of 23
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Re: Mercedes-Benz R-Class Electrical Problems [koolkat1]
by hockeyhopes
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Apr 03, 2008 (10:18 am)
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Replying to: koolkat1 (Mar 21, 2008 9:35 am)
We bought our brand new 2008 R350 this month. 2 days after driving away, the battery drained completely (car would not even open with key). The technician chalked it up to one of two things: 1.) the kids leaving a light on, even though our kids can't reach the upper light & do not touch anything else. (we are especially careful to check for lights on at night, especially because of kids/school etc). or 2.) the battery was not charged fully at delivery, due vehicle sitting in dealer lot for winter months (we are in New England). This morning i had 2 super important appts & a game w/ the kids, The car battery is dead again. The vehicle has 428 miles on it! It died at 205 & now 400+ miles. I purchased it with 170 miles on it brand new.. what is going on with Mercedes?
I love the way the car drives, and kids love the space, but i gave up my old Merc wagon for the R350 not just because the kids love it.. but becasue of R-E-L-I-A-B-I-L-I-T-Y. I can't explain this so far & when the technician came prompty this morning (same person as first time), he couldn't either. Told me definitely there was something unnecessarily draining the battery and this was/is very odd.. i have to take it in for service now for them to diagnose The car is 12 days old!. Do i have a lemon? (gosh hope not because i love the interior, the drive etc), but this is unacceptable.. Will see what the dealer says & does..
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- #9 of 23
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Re: Mercedes-Benz R-Class Electrical Problems [hockeyhopes]
by lcjd
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Apr 21, 2008 (4:03 pm)
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Replying to: hockeyhopes (Apr 03, 2008 10:18 am)
We are having the same problem. We bought our 2008 R350 in Dec07 with 5700 miles. At 9700 miles, the battery was completely drained and the car was towed to the dealer. They had it for 9 days, then returned it (with hesitancy) saying they still didn't know what caused it and it would probably happen again. They did replace the battery. Well, it did happen again at 13,500 miles, it was towed back to the dealer and they kept the car for 2 days. They wanted to keep it longer, but we said we needed it back. Now, at 14K, it was towed back to the dealer for the 3rd time with a completely drained battery. They called today to say MB told them to replace a control unit(?) and the part would be in in 2 days. We also have some problems with the clocks in the car. They don't keep accurate time a few days before the car battery is drained.
Like you, we love the car. It drives great, has so much space and the kids love having their friends ride with them. I don't see us keeping it once the warrenty expires unless this problem is diagnosed!
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- #10 of 23
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Re: Mercedes-Benz R-Class Electrical Problems [pf_flyer]
by nicky2244
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May 18, 2008 (3:09 pm)
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Replying to: pf_flyer (Aug 28, 2006 6:21 am)
Have a 2006 R-350 with about 13500 miles. Car won't start, changed battery all the lights cut on but the car still won't start. Jump it off and finally Now a red battery light cut on saying I need to take my car to the dealership. My car is in the garage now tomorrow I have to call Mercedes and waist another day of electrical problems. This is a 2006 why won't my car start. I check my car remote batteries, replaced them. Still won't start. I should have waited and bought the 2006 GMC Acadia. Has anyone have anything happen like this let me know. I might just trade it in on the GMC. Never had a problem with a gmc never and i still have one gmc Denila
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