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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
I am not sure of the exact circulatory set up for the trans and cooler circuits. The trans fluid circulates through the side of the radiator for a water-oil cooler as well as the air-oil cooler under the skid plate. The system was flushed thoroughly at the time of the R&R.
These guys know what they are doing and I have confidence in them. The 5 speed 722.6 is a common trans in the Mercedes line up. It will get sorted, hopefully sooner than later. I will follow up with the final diagnostic report.
I have been driving our old 1996 Montero with a set of new General Grabbers to the mountain. 220K miles on it, going strong. No lockers except for the center diff, but it has been reliable if not a little underpowered. I miss all 300 horses of the G500 and the sweet looking ride that the G is. This generation Montero is a good value for the $800-$2500 they are selling for used, we bought ours new as a wife kid shuttle. It is now the teenage kids' indestructible beater rig.
Edited by otiswesty 1/2/2016 1:39 PM
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NHDave
Extreme Veteran
Date registered: Dec 2013
Location: Seacoast NH.
Vehicle(s): 2004 AMG
Posts: 465
| Re: Transmission rebuild
I'm sure you have faith in these guy's and you should. Who else out there seems to know this stuff better than the dealer.. Thank god for these guy's, they'll see this thru for you, unlike the dealer!
Yes, something to be said about the longevity of Japanese engines and the simplicity of their mechanics behind the drive train, bulletproof for some reason.
What an expensive nerve racking shit fest for you!
My fingers are crossed for the best out come Otis!
Keep us all informed with the prognosis? |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| RE: Transmission rebuild
I brought the G500 home again today, the cooler circuits tested okay and the problem was not improved with cooler bypass. The dealer has been working with Mark at Sun Valley Transmissions to find a solution. I had been windering if I had made a mistake not taking the MB remanufactired 722.630, but it seems to be independent of the trans itself. I think I am still below what the cost would have been for the dealer sourced trans plus torque convertor. The overall costs for the trans repair are significant, but overall pretty reasonable given how little it has cost to own this vehicle.
One of the tests involved swapping out the trans control under the hood with a sedan model. I asked if it was W210, which they nodded yes to. They cleared the current settings and were going to do a transmission adaptation over the weekend.
I offed to do the adaptation myself. It is WIS document AD27.19-P-3000-04A
It involves a series of 4 manual upshifts of each 1-2, 2-3, 3-4, 4-5 at max engine speed 1800 RPM. It also specifies torque ranges for the procedure, but they are wide enough that it should be no prob.
Also included are 3 downshifts sequences at no specified torque 5-4, and 4-3
I will be doing it this weekend and bringing it back in for a fault check on Monday. Luckily there are some nice roads for it out by the pick and pull where I will be looking for a W210 trans control unit, K40, and other bits if avail.
The throttle body fouling and EGR valve failure were discused with them as well and they felt these would result in the symptoms occuring in a warmed up engine as well, so less likely, but still have been considered. |
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ILIAN
Veteran
Date registered: Sep 2014
Location: Boston MA
Vehicle(s): 2000 G500 1999 CL500
Posts: 181
| Re: Transmission rebuild
Are you saying you have the air transmission cooler relocated to the skid plate? Not behind the front bumper? |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
Yes, I moved the oil/air TC cooler from behind the bumper to above the skid plate in the G55 position in order to fit a tow pin bumper years ago. It is functioning well with normal back pressure. |
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ILIAN
Veteran
Date registered: Sep 2014
Location: Boston MA
Vehicle(s): 2000 G500 1999 CL500
Posts: 181
| Re: Transmission rebuild
Maybe you overheated the transmission and caused the failure in the first place. The cooler relocated doesn't get much air. I know it's supposed to be a factory setup but I don't like it. A few others have expressed consern here in the forums in the past. I figured out a way to mount the cooler close to the original position in the front but supported on the body of the car instead of the bumper or frame. Now I'm building a winch bumper which will allow full airflow to that cooler just like before. I will post detailes about it someday in a new thread. |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
That is very possible. I am done towing 7000# loads, as we have sold the farm.
The G55 cooler above the skid plate is an additional secondary air/oil cooler for the AMG trucks, they still have the one behind the bumper. |
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Vehicross99
Veteran
Date registered: May 2009
Location: So Texas/SW Colorado
Vehicle(s): 2006 G500
Posts: 161
| Re: Transmission rebuild
Hi ILIAN
Would you have any pictures/drawings of your cooler location?
I am just installing a tow pin bumper and have concerns about the new location.
Hey Otis,
I hope you get everything cleared up soon.
My 2nd vehicle is a 1999 Montero, 160k miles and still going strong. |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
I pulled the truck out of the dealer at the advice of Mark at Sun Valley. I took it to an indy shop, they cleaned the throttle body and everything is working as it should now. The thought was that the timing was coincidental and in retrospect it didn't begin immediately after the trans rebuild.
I am glad I did not authorize pulling the trans and replacing the torque convertor!
Back in action. |
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NHDave
Extreme Veteran
Date registered: Dec 2013
Location: Seacoast NH.
Vehicle(s): 2004 AMG
Posts: 465
| Re: Transmission rebuild
Very good news otiswesty!
Best of luck from here on in.
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ILIAN
Veteran
Date registered: Sep 2014
Location: Boston MA
Vehicle(s): 2000 G500 1999 CL500
Posts: 181
| Re: Transmission rebuild
I'm glad it's solved with an easy cleaning. Dealers seem to think A and B service is all a car needs and they are usually not interested in the easy fixes. |
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ILIAN
Veteran
Date registered: Sep 2014
Location: Boston MA
Vehicle(s): 2000 G500 1999 CL500
Posts: 181
| Re: Transmission rebuild
Here is what I did with the transmission cooler. I hope it works with the tow pin bumper.
 (325kb image.jpg)
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 325kb image.jpg (325KB - 0 downloads)
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ILIAN
Veteran
Date registered: Sep 2014
Location: Boston MA
Vehicle(s): 2000 G500 1999 CL500
Posts: 181
| Re: Transmission rebuild
The brackets that hold it to the bumper need to be cut down and swapped from side to side. Take your time with it, it won't be easy to find the right position and to bolt things up, I hope you have small fingers. I'm going to mount it about an inch lower than what it is now and then it's going to sit about 1/2 inch above the front edge of the skid plate. I'm still making cardboard templates for the front winch bumper. I'm going to mount a Superwinch Talon 12.5isr in there and I'm trying to make it so the winch can come out in 5 min and get the best aproach angle and so that the winch solenoid doesn't cover the star on the grille. Oh and have an OEM brush guard that's reinforced and quick to remove when needed. |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
Update on this
While down in New Mexico in October, very low AM temps. I had recurrent symptoms of stalling with putting the trans in gear when cold, less that 45 degF. I consulted with Marc at Sun Valley and he offered warranty replacement of the torque convertor.
We were in LA before Christmas and I had him do this. An easy half day job for his shop including R&R of the gear box. Unfortunately needed to rush home the next day due to flooding of my basement in Portland and developed some new drive line vibes on the way home. It drove perfect when I picked it up.
Got some fresh tires the next day thinking it was the old BFGs, and we noticed some clicking that sounds like a CV joint. There was a bolt missing from the transfer case skid plate. I replaced that and clicking still there. Vibes did not improve with the new tires.
Right now I am thinking it is most likely the intermediate shaft, but since the trans was just out I cannot rule that out. I am waiting for shop time at an indy that would be reasonable enough to cover warranty work on the trans should that turn out to be the issue. Very disappointing that this saga is ongoing, apologies for the double post with the other recent thread. I have not contacted Sun Valley Transmission yet as I do not know if the trans is involved.
Edited by otiswesty 1/2/2017 12:56 PM
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
By the way, very cold here with temp in the teens and symptoms of torque convertor lock up are resolved. |
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Braingears
Expert
Date registered: Apr 2006
Location: St Petersburg, FL
Vehicle(s): G320 & ML320
Posts: 1450
| RE: Transmission rebuild
Put your TC in low. Drive it through the RPM range. If you notice the vibrations at completely different points or speed, then you found the problem. |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
In low range, it begins as soon as the car is moving forward. With rythmic clicking noise that increases in frequency relative to speed until it is humming. Could this be the center shaft? |
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Braingears
Expert
Date registered: Apr 2006
Location: St Petersburg, FL
Vehicle(s): G320 & ML320
Posts: 1450
| Re: Transmission rebuild
otiswesty - 1/3/2017 12:48 AM In low range, it begins as soon as the car is moving forward. With rythmic clicking noise that increases in frequency relative to speed until it is humming. Could this be the center shaft? I think you found your issue... |
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Otiswesty
Administrator
Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3005
| Re: Transmission rebuild
Okay, drive shaft ordered and on the way... |
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imjustdave
Regular
Date registered: Feb 2012
Location: Bonney Lake Washington USA
Vehicle(s): 2004 G500, 2014 Audi Q7 TDI, 2006 Ram 3500.
Posts: 77
| Re: Transmission rebuild
WOW you have been having the worst luck, glad you are getting things sorted out though. I did have one question on the intermediate shaft. IS the shop positive they put it back in the same position? AS I understand it its clocking has to be perfect. IF this was a day and night change I would be looking at that. |
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