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#1
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722.118 ('81 300D) transmission problem (bucking/jerking/surging in Drive)
My 300D with 722.118 transmission is bucking/jerking/surging forward in Drive
when stopped at a light which is the main problem. (like someone is gently rearending you trying to shove the car forward). a couple times from stop, before the bucking/jerking/surging forward became very serious, the transmission didn't engage, and ended up revving very high (surge?) before finally engaging. (I have to shift out of Drive at a light to get relief from all the bucking/jerking/surging ......) I've looked at the B2 piston, and it seems intact. actually i've disassembed things, and can't seem to get the b2 all the way out, but the inner side and outer side seem to be a solid piece. also the b2 band seems to be in one piece - NOT sure how to tell if the b2 band is bad. I had searched the archives, and it seems to confirm the later 722.3 transmissions are the ones that have the more common b2 failure, and there are only a couple possible mentions of 722.18 b2 or b2 band failure. SO... any ideas? -o2pilot |
#2
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Trans Problem
Really it sound like either a problem in the valve body or clutch packs going out.
I had the same thing happen in my 240D. Has the transmission been overfilled?? Excessive pressure can cause these sytems but usually by now its too late. I don't think its the B2, I changed the seal in mine and it still did it.
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Ryan 1985 300D Turbo Diesel 1984 200 Euro |
#3
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re: trans problem
Hi. it seems to me that the fluid was over filled when I had
a look after the problem started. got the car, drove down from SJ to LA and then on the way back this problem developed. car only has 60k. in LA the surging forward was barely noticeable, and by the time we got back, it wasn't that tolerable when you're stopped at a intersection. also a couple times along the way it wouldn't go into gear until revved high. i've taken apart the valve body in order to examine the b2 piston, and it seems pretty clean, fluid was pretty clean.... then again, I'm a newbie as far as auto transmissions and Mercedes go..... -o2pilot |
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