trans question
Thread Starter
Newbie
Joined: Mar 2004
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From: Charlotte, NC - USA
500 SEL
trans question
my 84 500 SEL has 105K on it. The trans makes a "thunk" sound down shifting when I take my foot off the gas. I had always thought it was normal, but another w126 owner suggested that it was not. He thought it may be something to do with fluid presure and may be fixed without tearing out the trans. Anyone have any thoughts on this?
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Joined: Oct 2004
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From: Atlanta, GA
96 S600 Euro, 91 560 SEC, 88 300TE, 87 560SEL, 86 560SL, 80 280SE, 64 Austin Healey 3000MIII
are you Sure it's the trans and not coming from the rear? Could be worn out half shafts or diff..
But, it could be the transmission as well. Does the car shift normally otherwise?
Jonathan
But, it could be the transmission as well. Does the car shift normally otherwise?
Jonathan
Thread Starter
Newbie
Joined: Mar 2004
Posts: 17
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From: Charlotte, NC - USA
500 SEL
I does seem to come from the rear now that you mention it. The car shifts normally as long as I am on the gas, but as soon as I back off the gas the shifts (up and down) have a pronounced "thunk".
Member
Joined: Oct 2004
Posts: 90
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From: Atlanta, GA
96 S600 Euro, 91 560 SEC, 88 300TE, 87 560SEL, 86 560SL, 80 280SE, 64 Austin Healey 3000MIII
I would get the car up in the air, check the flex discs, rotate the rear wheels back and forth...see how much play is in the diff..should be negligable to none. If you can Feel it, your half shafts or diff are getting tired. By gently rocking back and forth you should be able to tell if it's shafts or diff.
Jonathan
Jonathan
Thread Starter
Newbie
Joined: Mar 2004
Posts: 17
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From: Charlotte, NC - USA
500 SEL
Thanks!
I will try and get it in the air later this week. I have noticed, however, that there is movement after I stop the car and place it in park. Interestingly, if I put the car in park (on a level surface) from drive, and turn off the ignition it will roll forward a few inches. If I do the same thing, but move it from reverse to park it rolls backward a few inches. Could this be related?
Also -- how much does a repair to the half shafts or differential run?
I will try and get it in the air later this week. I have noticed, however, that there is movement after I stop the car and place it in park. Interestingly, if I put the car in park (on a level surface) from drive, and turn off the ignition it will roll forward a few inches. If I do the same thing, but move it from reverse to park it rolls backward a few inches. Could this be related?
Also -- how much does a repair to the half shafts or differential run?
Member
Joined: Oct 2004
Posts: 90
Likes: 0
From: Atlanta, GA
96 S600 Euro, 91 560 SEC, 88 300TE, 87 560SEL, 86 560SL, 80 280SE, 64 Austin Healey 3000MIII
Originally Posted by MR500SEL
Thanks!
I will try and get it in the air later this week. I have noticed, however, that there is movement after I stop the car and place it in park. Interestingly, if I put the car in park (on a level surface) from drive, and turn off the ignition it will roll forward a few inches. If I do the same thing, but move it from reverse to park it rolls backward a few inches. Could this be related?
Also -- how much does a repair to the half shafts or differential run?
I will try and get it in the air later this week. I have noticed, however, that there is movement after I stop the car and place it in park. Interestingly, if I put the car in park (on a level surface) from drive, and turn off the ignition it will roll forward a few inches. If I do the same thing, but move it from reverse to park it rolls backward a few inches. Could this be related?
Also -- how much does a repair to the half shafts or differential run?
Jonathan
