- #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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- #11 of 23
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Re: Mercedes-Benz R-Class Electrical Problems [hockeyhopes]
by hockeyhopes
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May 20, 2008 (8:47 am)
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Replying to: hockeyhopes (Apr 03, 2008 10:18 am)
Well, i have a bit of good news to report. About 3+ weeks ago the dealership got tired of servicing our car (read my previous message on this forum). Also the lemon law kicked in as it had been there for 14 days. The service dept could not figure out how a new car with 450 odd miles on it was being drained/ would not start after a full charge evry couple days. Told me car has 3+ miles of wiring & rather than tinker with it, they replaced our 'old' R350 with a brand new one with 9 miles on it. Exact same with identical package & they threw in the Xenon lighting as a courtesy for all the trouble. They will be sending the old one back to Mercedes in Alabama to lok at. Been driving our new car close to a month now & it is a dream.. the reason we bought this yacht in the first place. Well, that's our story so far. I hope Benz can resolve the wiring/battery issues in future models to alleviate trouble some of us have been experiencing. All the best.
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- #12 of 23
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Re: Mercedes-Benz R-Class Electrical Problems [hockeyhopes]
by caliberchic
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May 22, 2008 (4:01 am)
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Replying to: hockeyhopes (May 20, 2008 8:47 am)
Congrats on the replacement!! 
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- #13 of 23
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Constant electrical problems
by soundermn
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Jul 03, 2008 (8:20 am)
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We've got 18k miles on the car. Lease is up next month and it's going back. Electrical problems we've had:
- electric tailgate fail, adjusted twice.
- rear windows stopped working.
- SRS red warning light. Dealer replaced airbag module. Light is on again, six months later
- battery light comes on periodically. Dealer has fixed it three times, and its on again now
- low antifreeze light comes on periodically. Dealer has fixed it twice, it's fine now.
- installed tow package, and it took the dealer 7.5 hours to connect the harness. After discount, it cost me $500 to install the wiring harness (which is the same as ML harness)
- non-xenon headlights. Had to return to dealer twice to adjust headlight aim
All these are minor problems, and were fixed without question, and without drama at the dealer. However, for a car that cost $60,000 with tax, I should not have to take it back to the dealer every three months for some other goofy problem. We aren't happy owners. Yes, its comfortable, drives great, looks good. But, it's big, can be hard to park, and has to visit the dealer far too often.
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