I have a 2006 E350 with about 28K miles on it, CPO. Took it out for a spin today, about 15 miles, everything seemed fine. Let it sit for an hour while I had lunch. Got back in the car to go back to work, put it in Drive, comfort mode selected, which I use normally. I pressed the accelerator until RPM's hit about 2000 before the car would start to move. I thought, OK, weird, not normal. Continued driving. Came to stop light. Light goes green, same thing, had to get RPMS up to 2000 to get the E to move. Turning back into the parking lot at work, I heard what sounded like the electric cooling fan come on and it was unusually loud. I know Comfort mode starts the car in 2nd but something is definitely not normal. Taking it in to MB in the morning. Anyone have a similar experience with their 7 spd E350? Thanks.

 

I have the same car. I just purchased mine about 3 weeks ago and i am hearing a coolin fan come on ever so often. Been meaning to put this question on the board.

Anybody have any info this is issue?

It would help out the both of us...thanks.

 

just got mine back from the MB dealer. Of course they could not reproduce the issue, but they did find that there were software updates available for both tranny and engine and they installed them so I guess I'm on service pack 2 now haha. I asked about the electric fan, damn its so freakin' noisy. They said that's normal and people complain about it all the time. Mine hasn't come on in ages, until yesterday when it sounded like a 747 pulling into the garage. It doesn't come on that often but when it does, you definitely know it!

 

Its not the SBC pump you are hearing is it?

 

For the most part all roads seem to lead to the 722.9 valve body:

DTB S-B-27.50/59f depending on fault code(s) may be the speed sensor - resolve valve body replacement.

P-B-2760/88a depending on fault code(s) may be the K1multi-disc clutch however, if not replace valve body.

P-B-27.50/59b depending on fault code(s) may be K1 clutch flange, if not depending on production range valve body replacement.

S-B-27.00/102b depending on fault code(s) torque converter lock up – particulate found in the transmission oil pan - replace transmission/torque converter.

Any noticeable ATF:

P-B-27.00/47f oil leakage in the area of the electric connection, replace connector and O-rings

 

The SBC pump I am very familiar with, the cooling fan is a monster!
Yes the 722.9 tranny that's whats on the service sheet. It said 'perform short test found code 2204 in trans and in ME control unit code 1785, check eng and tran software and found newer software available, install engine and tran software and check fluid level check OK test drive after repair no problem found. Looks like they did a leak test also and it passed. Since this issue appears to be intermittent with my vehicle. I'm wondering if the dealer will ever believe it happens unless I can bring it in when its happening to prove it to them. If it happens a couple of more times with no resolution I guess the only recourse is to call the Mercedes 800 number and complain. Dealer says unless the car produces a fault code that they can act on they cannot do the warranty work. It would amaze me if MB designed a car that every possible warranty fix would have a fault code that appears in the computers. what a hack.

 

As I've stated in my earlier postings, the shifting in my E500 was rough from 1 to 2 or 2 to 1 gear. It was an intermittent problem. No fault code was recorded. The dealer couldn't duplicate the problem on the road, but they were nice enough to replace the valve body in the tranny and the filter as well, and updated the software. I think it depends on your service rep or the dealership. Ever since the repair was done, the car has been shifting like a new tranny.

 

After 6 months of the issue not coming back, it is happening again. Drove it for about 20 miles, parked it for an hour. Then started driving it in S mode and tach had to get to almost 3000 to get the tank moving. At every stop light same problem. Seems like first gear not engaging at all in S mode. When I got home I stopped at the driveway and switched to manual shift mode and the gear indicator showed I was in 3rd gear when it should have been showing gear 1 being in S mode. Taking it back in to the dealer this week.

 

Dealer found fault code 2204 and installed 1306 valve body. Smooth as silk now......

 

Hello to all.
This is my first time to post. Reason is because I just experienced the same problem and I want to get your input.

Driving normally and came to a full stop to an ATM, without turning off the engine. Got back in the car, put it in reverse, stepped on the gas and nothing. P, R, N and back to D but still nothing. Car will not engage. Turned it off and back on and it was back to normal.

After 2 days, same thing. Came to a complete stop at a red light, upon green light, I then stepped on the gas to go but nothing. Tried to ship manual using the tiptronic but still nothing ( I think it's called limp mode? ). Turned the car off and restarted and the problem went away again.

I took it to a Mercedes technician (not a dealer) who worked for Mercedes for 11 years and told him what happened. He immediately told me it was a transmission valve body issue. He hooked it up to the computer and he confirmed it. He said he's come across this issue quite a bit that's how he knew right away about it.

He then advised me to go to the dealership because they may be able to cover it under their 7 year/ 70K warranty. My car has 69K miles.
I took it to a Mercedes dealer service and said they may have been able to cover it under warranty but because the fault on the valve body was a "silinoid issue", they can not cover this. It will cost me about $2000 to get it replaced. OMG!! What the heck is that?

Can anyone actually tell me what is actually covered in this 7/70 warranty?
I have had 2 prior E series before (94 300E and 2000 E320) and drove both more than 120K miles and never had any transmission issues.
Any tips on how I can have MB cover this under this 7/70 clause?
Please help....any input or advise will really be appreciated.
Thanks.

 

Where is the 7/70 warranty from? MB Warranty I thought is 4year 50,000 miles?? If in fact there is a 7/70 warranty, I would be on the phone with MBUSA open a case to get that resolved. Typically the drivetrain warranty states "internally lubricated" parts are included, you could state that these "solenoids" are in fact inside the transmission pan. I know its splitting hairs. This issue is one reason to spend money at the dealer on maintenance if you want them to go to bat for you when you have an issue thats borderline. If you have not been using the dealer for anything, then they have no incentive to bend the rules at all.

 

7/70 emission warranty (CA, ME, MA, and VT) covers integrated transmission control module (FTC) to valve body responsible for the evaluation of various input signals relevant for transmission function in turn controlling the solenoid valves and does not cover solenoid valves that handle clutch control.

 

I would take it to the dealer and ask for a 'good will' repair if the car is not covered under any warranty. I know of one case where this repair was done at no charge on a 2003 E class that was out of warranty but only had around 30k miles. Its worth a shot. Seems rather unfortunate that MB wouldn't make good on such known issues like they do for the SBC pump.

 

Is the solenoid valve inside the transmission? If so, you'll only need to pay for the part and not labor since the 7/70 warranty covers the valve body, which requires opening up the transmission & changing the fluid anyway. If it's outside the tranny, why would it cost $2k to replace it? I can't imagine it would take 10 hours to replace it. How much does this part cost?

 

I did some google search on the solenoid valve. It's located in the valve body inside the transmission. It controls the pressure/flow of the fluid so that the transmission can select the appropriate gear. It sounds like that your MB dealer says there's nothing wrong with the valve body but the valve solenoid is at fault. That seems to fit your description. What seems odd to me is the 7/70 warranty does not cover the solenoid valve but covers everything else in the transmission. In your case, I'll ask the service manager for a good-will repair since it's the "whole" transmission at fault regardless of the status of the individual parts. If he refuses, I'll try another dealer, and if that fails, maybe your MB mechanic can do it cheaper.