This should be done at least every 30kmi, if not sooner. The point is, whether it is worth it to spend 66% of the price of a complete repair to be driving around with a high mileage used tranny with trash in it. In my case, the mechanic said that everything else looked to be in pretty good shape, so I limited the work to just the B3 clutch, plus general replacement of seals. Then it got to the point where it wouldn't engage at all without blipping the gas a bit and then it would engage with a lurch. The 4-5 and the 5-4 shifts are controlled by a computer module. Using synthetic fluid is even better. All clutch and brake packages do not distinguish themselves from general statistics and in most cases all friction clutches get replaced as a whole kit.
I didn't do the work myself, I just had a local transmission shop do it. We are a family-owned and operated Akron, Canton, and Dover transmission repair and service business and taking care of our customers is our number one priority. RayH Hi, I have a 1994 W124 E280T with the 722. In many cases the repair consists of replacement of current pump seal and pump bushing. Just went suddenly with no warning. What kind of warranty coverage are you looking for? Also, while rear-wheel drive W211 E-Class cars have adapted the 7G-Tronic, those with 4Matic retain the five-speed automatic, although the current generation W212 E-Class released for the 2010 model year has dropped the 5G-Tronic entirely, except for four-cylinder models.
I'd rather just do a used tranny if that were the choice. The additional cost may be higher than installing a reman or rebuilt transmission--not to mention the extra downtime. Now is there such thing as completely hydraulically controlled 722. Any old way, there will be someone along fairly soon who will give a more detailed comment. This might help It speaks of a no 5 th gear but offers insight on how the system works. The overhaul certainly includes repair of the torque converter caused by wear-out of friction linings of actively operating lock-up clutch.
It is in the process of being replaced by the Mercedes Benz 7G-Tronic 722. During my digging into my own W126 transmission problem no reverse gear engagement - since solved via B3 reverse clutch repair , I Googled the keywords 722. I have no idea if the web site that this is from had permission to post this document - it just came up via Google. This manual covers the testing, disassembly, inspection and reassembly of the Mercedes 722. The failure always leaves a mess of trash in the tranny.
New vacuum pump should not make any difference. The leaking pump seal is the sign of wear-out. . We will let you know if we do. I still have the car, which now has 192,000 miles a bit more than 20k miles since the repair , with everything working fine. I'll let you know how good it really is next week, as I am dropping my tranny as we speak for a B3 clutch look-see. So what does a No Hassle Warranty really mean? I haven't taken the time to read all of the link 59 pages , I am assuming that you had to disassemble the transmission somewhat to do the repair on B3 and that it is not accessible from the outside of the case?? Make sure you check the level with the tranny hot, otherwise 5-10mm below the normal level is ok.
The question that you have to think about is whether it makes sense to do a full rebuild while the transmission is removed and open. Last summer I replaced the vacuum pump with a new later version. I wouldn't want to use these for actual repair procedures, unless you had exactly the same transmission, but it certainly can help to understand the possible causes of most symptoms. I am forgetting the price I paid, but it was a bit more than half of what it would have been to get a full rebuild. Unless you are just patching it for a resale dump on someone, you are the one that gets short changed by such short sighted economics.
The real risk is issues from debris that can't be cleaned without total disassembly. Design of the 3-rd series is updated with advanced electronic control and the clutch package Overdrive. Should I first check the cable from the transmsiion to the throttle control? Besides the same issues that cause the failure exist in numerous other areas. Every transmission is cold and hot tested before shipment. The diagrams are beautiful and the text makes sense. In my case, the 722. Thanks in advance for any help.
Just wanting to determine what I am in for. This followed the replacement of the engine and gearbox mounts but I cannot be sure of the exact cause of the problem. At a quick glance it looks the same as the four speed 722. I put new piston seals and a spring kit from Superior in the valve body and it fixed the flares and the shifts. That said, there are electronic issues. I hate those little steel balls but the manual helped me get them all back in the correct locations. Almost all components are interchangeable with 722.
I went back several times and spoke to the mechanic who in the end agreed with me that it 'might' be that the transmission is skipping a gear, but that he also doesn't know what to do with it, since all the mechanical parts inside the transmission were replaced etc. From what I know the 722. The extension housing is the quickest way to identify the five speed unit, as this is where the overdrive section was added. Should you have any questions or concerns about your Shift Select transmission, our Product Support Team is only a phone call away. The older 722 transmissions i. This one blows them both away.