Hey, there's no shame in being safe! I totally get that! I also understand the stress involved with the unknown, and how it disappears once you've done it, so it's all good. I've never replaced a Benz tranny, but I'm sure the process to drop it can't be that much different from any other I've done Be careful that the torque converter doesn't fall out when you separate the bell housing from the block. There's going to be a seal in the torque converter in the hole the shaft goes through, I'd definitely replace that while you're at it.
That tranny jack will be fine, but like I said, I don't even use a jack! A T56 only weighs around 125 pounds. A 722.9 can't be much more. With transfer case though, I have no idea. Granted, I was a little younger and dumber when I did most of the stuff I mention, and able to brute-force a lot of it, but I'm in my late 30's now and I still wouldn't sweat it. Trick is to get as close to the tranny with your chest as possible before you pull the final pin, then lower it down. But with the jack, you don't have to worry about any of that. I haven't even looked up anything tranny related in WIS, so I don't know about the 4 Matic components or any of that as they are specific to Mercedes, but a transfer case is a transfer case is a transfer case, right? Out of curiosity, I did watch a few 722.9 rebuild vids on youtube though, and these things are surprisingly simple compared to older AT slush boxes from other manufacturers. No bands to worry about, clutches, etc., these things are strictly electronically actuated. Pretty cool.
I think you'll be fine, and when you're done, you'll have accomplished something most wouldn't even consider! I'm paying attention to this thread, lot to learn in this one. Keep up the pics, those are great/helpful.
The 722.9 weighs 82 kg (181 lbs) without the transfer case.
The 722.9 weighs 82 kg (181 lbs) without the transfer case.
and since the transfer case is fully integrated into the transmission on the 4m versions, its gotta be at least 20-40 lbs heavier. yeah, I'm not dropping 200 lbs on my belly either.
and since the transfer case is fully integrated into the transmission on the 4m versions, its gotta be at least 20-40 lbs heavier. yeah, I'm not dropping 200 lbs on my belly either.
yeah, I'm not dropping 200 lbs on my belly either.
Even if we swap the tranny to a beautiful gal ...yah ? 91kg , damn........ 200lbs/91KG me would have collapse lung guaranteed, coz length wise only 120-140cm the tranny.
Even if we swap the tranny to a beautiful gal ...yah ? 91kg , damn........ 200lbs/91KG me would have collapse lung guaranteed, coz length wise only 120-140cm the tranny.
on the way out we know where the 722.9 will go: down!
But on the way back in ... holes will need to be aligned without resting on the crankshaft 😭
I guess you need a cradle on top of the floor jack
ideally, you have a transmission jack and a really smooth concrete shop floor. i bet finding the balance point on this particular transmission if you've never done it before could be challenging, but the answer is probably some sort of specific transmission cradle you jury rig that will let you find the balance point as you pull it off the back of the engine. dunno, last transmission I swapped myself was on a 1971, VW 'breadbox' van', yanked the engine with one floor jack, and the tranny with another.
Thank you for many support and advice. I did try to see under there how difficult it will be and I think it too much for me and too old for it I am 62 too now and I used to have back pain long time ago. Considering for me without experience it would take maybe 30 hours for me. Lucky I found one shop in Dallas Autohans which somebody in this forum recommended and In RepairPal he had many good review. I check with the shop and he can do it for 10 hours x 130. I just need to find the part and in ebay there used one complete internal of transfer case from car around 65K miles for $800. I think that reasonable than Mercedes quote $8K which I can buy car with same mileage with that price. So tomorrow after 8 days I got AAA I can tow to shop. The one I scare if I put the component in transfer case then I have to open again that will be bad.
I want to share my experience almost wreck my car twice because jack fall. First time about two year ago I change the front struts E350 and that time I had one jack 3 ton bought long time ago from Pep Boy. The jack had leak so it kind of going down very slowly. So I have to open one of front wheel and need jack to raise or hold the hub. So I used Mercedes emergency jack ( yeah very stupid) to raise the wheel and take of the wheel and used 3 ton jack to hold the hub and raise while I try assembly or disassembly the struts and suddenly the emergency jack fall and lucky that time I put the tire in bottom car near the wheel I work on if not the car will land with hub to floor which will damage the car. I am able to use 3 ton jack while to raise car while the car hold by the tire. The next day I bought the Harbour Freight 3 ton daytona low profile super duty jack. Second incident few days ago while car stand on 4 jack stand I try to raise the rear using Daytona 3 ton jack in rear differential to put my new wheel stand. The jack not high enough so I use two rubber 1.5 inch thick jack pad like double decker. The car shift to the side while raising because the two jack pad stacked not strong enough so it deforming. But this time still lucky because the car still land in existing to jack stand but not at the exact point but still strong enough. I able to use my old 3 ton jack to raise after I put under one wheel and reposition the jack stand and fix the other rear wheel jack stand. After that I use wood block plus one rubber jack pad to raise high enough to put wheel stand. So this time still lucky. If I under the car and jack fail I may not able to hold the car with my bare hand. That why I became paranoid thinking I will have to spend many days under the car so I made the wheel stand so it became backup in case jack stand broken or vise versa if I need to hang the wheel. I also afraid because the wheel stand I made look exactly as wood shape that karateka like to break for demonstration. We never know if one of karate guy see that wood and tempted to break it when I under the car so my jack stand can save me.
I got picture of inner part of transfer case
I think the one damaged in my car is the hidden u joint inside integrated universal joint which so far new one only sold in Alibaba around $650.
I got picture of inner part of transfer case
I think the one damaged in my car is the hidden u joint inside integrated universal joint which so far new one only sold in Alibaba around $650.
Thank you for many support and advice. I did try to see under there how difficult it will be and I think it too much for me and too old for it I am 62 too now and I used to have back pain long time ago. Considering for me without experience it would take maybe 30 hours for me. Lucky I found one shop in Dallas Autohans which somebody in this forum recommended and In RepairPal he had many good review. I check with the shop and he can do it for 10 hours x 130. I just need to find the part and in ebay there used one complete internal of transfer case from car around 65K miles for $800. I think that reasonable than Mercedes quote $8K which I can buy car with same mileage with that price. So tomorrow after 8 days I got AAA I can tow to shop. The one I scare if I put the component in transfer case then I have to open again that will be bad.
I hope all turn out well for your W212 yah Andy.
I do have back pain too and can't bend down to engine bay too long. Got like 3 neves pinch on L2-L5 there about, I forgot which. When it does acts up, damn...even coughing and taking a "dump" feels painful.
My friend in Boyolali fix my back 20 years ago. He used acupuncture point with bee venom which several point in my back and I got fever after that. But 90% pain is gone. Finally I resolve the rest 10% using liver cleanse. It didn't make sense right why liver cleanse can cure back pain. I read and lean many thing from earthclinic.com and had great success cure many problem using natural way. My friend also cure my asthma which physician told me there is no cure for asthma. I used to get cold/flu 4/5 times a year but after learn from earthclinic.com actually our diet make us sick now what I did I drink juice mix vegetables and fruit for breakfast just once a day and they two meal is not that healthy. But the improvement I think I didn't had flu in 5 years. In fact I got covid and test positive but it only give me fever for one day only. Fix you diet eat healthy than all your sickness will be disappear. Socrates already found thousand years ago make your meal your medicine. So you just need to know which one is good and which one is bad for you. If you eat healthy you build strong immune system and you never need vaccine because I never had flu shot and still not get flu maybe 10 years now. Before I eat healthy I got flu 4 times a year and if get flu I can get sick for more than 10 days and only anti biotic can stop that. Now I knew the fact actually anti biotic is actually make me weak because it killed my good bacteria in my gut. That why my immune system so weak so I got flu many times a year.
Not yet I plan to bring today around 2 PM or maybe tomorrow because the shop have time on Wednesday so I can just wait and maybe if they let me I will watch so can learn at least if happened again maybe I do myself. I think I may not able to put back again the inner component because that will be my first to gear and bearing which need special tool to press it. But if my only option to spent $8k then I had no choice. Yes I seen the Youtube of C300 he is able to remove transfer case without remove all transmission after finding the long bolt that hold the output shaft to transfer case. But this way above my skill. The thing I am afraid I didn't know how car I can lower down the rear part of transmission without breaking something in engine part. I think I can do rear diff or front diff but transfer case is too complicated for beginner.
Not yet I plan to bring today around 2 PM or maybe tomorrow because the shop have time on Wednesday so I can just wait and maybe if they let me I will watch so can learn at least if happened again maybe I do myself. I think I may not able to put back again the inner component because that will be my first to gear and bearing which need special tool to press it. But if my only option to spent $8k then I had no choice. Yes I seen the Youtube of C300 he is able to remove transfer case without remove all transmission after finding the long bolt that hold the output shaft to transfer case. But this way above my skill. The thing I am afraid I didn't know how car I can lower down the rear part of transmission without breaking something in engine part. I think I can do rear diff or front diff but transfer case is too complicated for beginner.
So for sure you can remove the transfer case without removing the transmission. That is exactly what my indy did. It won't hurt anything. He booked 19 hours for the whole job including rebuilding the transfer case. There is a thread on rebuilding the transfer case. Look in the GLK forum. It really depends on how much time you have. It's probably doable for the average guy but I think that it would be painful. I am retired and I'm not sure I would want to deal with it. If I were doing it I'm sure it would take me a week. No shame it letting a pro do it.
Thank MBNUT1. Did they rebuilt you replacing all internal parts? How much you spent for all parts? So that mean if shop told me 10 hours that mean is not bad deal. Did they also replace all the wheel bearing?
Look like they will not let me they don't even let me wait maybe because of covid but after they opened of course they will let me show the part is broken.
Thank MBNUT1. Did they rebuilt you replacing all internal parts? How much you spent for all parts? So that mean if shop told me 10 hours that mean is not bad deal. Did they also replace all the wheel bearing?
I may have had my hours wrong because I think that the labor charge was $1900 for the r and r of the transfer case and rebuild. They did completely disassemble and rebuild the transfer case. It was like $450 in parts. Bearing if I recall correctly which I think was a big overcharge. If they will do it for ten hours I would let them have at it if they are any good. My son thought my indy charged way too much for the job in terms of hours and parts and wanted me to do it myself but it was cold and I was working at the time.
I need to replace Pilot 2003 and thinking about 2015 GLK350 RW or 2015 GLK250 RW Diesel. Is that reliable car with no problem with transmission and diesel?
I need to replace Pilot 2003 and thinking about 2015 GLK350 RW or 2015 GLK250 RW Diesel. Is that reliable car with no problem with transmission and diesel?
This is the 2010-2016 E class section. An E is a executive sedan (or wagon) roughly akin to an Accord in the Honda lineup, not an SUV
Be careful that the torque converter doesn't fall out when you separate the bell housing from the block. There's going to be a seal in the torque converter in the hole the shaft goes through, I'd definitely replace that while you're at it.
91kg , damn........ 200lbs/91KG me would have collapse lung guaranteed, coz length wise only 120-140cm the tranny.
