W210 E280 auto rolls backwards on hills

welland99

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Just noticed today that when doing hill starts either going forwards or backwards that the car rolls the wrong way (ie down the hill) unless I use the parking brake to hold it. :eek:

I don't remember it doing this before - does it indicate that something is out of adjustment or needs attention?

Auto box functions fine otherwise.:thumb:

Car is a 1999 face lift and done about 95k miles.
 

franey

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You could start by checking the propshaft couplings.
 

lynall

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As always with potential gerabox faults get the oil level checked first.



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EDZ649

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Just noticed today that when doing hill starts either going forwards or backwards that the car rolls the wrong way (ie down the hill) unless I use the parking brake to hold it. :eek:

I don't remember it doing this before - does it indicate that something is out of adjustment or needs attention?

Auto box functions fine otherwise.:thumb:

Car is a 1999 face lift and done about 95k miles.

All hills or just steep ones?
 
OP
OP
W

welland99

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All hills or just steep ones?
Just steep ones I think.
It can be held on the throttle, but in the short time it takes to get your right foot from the brake to the gas, the car has already rolled. :(
If I use the parking brake to hold it, then once I've got off the normal brake and got on the gas, I can hold it when the parking brake is off.
 
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welland99

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You could start by checking the propshaft couplings.
Really? If they were worn, wouldn't this just introduce play, rather than continuous rolling down a hill?
 

EDZ649

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Well its quite normal on steep hills for the car to roll, all three of my vehicles do it. If you had said that it did it all the time I would have said that you had a problem somewhere.
 

franey

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.....aaah I see, continuous roll? Thought you meant a couple of inches sorry.
 

AMGeed

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Have you tried switching the setting from S to W ? W is starting in 2nd gear and its known that the S setting doesn't always hold the car on a hill. Also a 25RPM increase in the S setting can make the difference.
This was what I found on my W210 W280 anyway.
 

lynall

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Mines holds on quite steep hills fine.



Lynall
 

phil c

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its normaly the one way bearing in the box that fails, causing it to roll back on inclines , nothing to do with gearbox mode or oil level . hope this helps , oh and not that bad a job if you know what your doing ;)
 
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welland99

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Thanks everyone for your views. :)I went out for a spin by myself this evening to find some steep hills to do a bit more testing (not hard where I live - Malvern). :rock:

It actually seems fine on all but quite steep hills, and now I know about it, I can take precautions by using the parking brake. :bannana:

This morning, when I first noticed the problem, I drove forwards down a hill to park, then tried to reverse back up the hill. I think I took my foot off the brake half a second too early before reverse had properly engaged. After my further testing this evening, I noticed that if I wait for the change in engine tone to indicate that reverse has properly engaged, then the rolling downhill is not nearly so bad.

I don't think there is anything seriously wrong, as I first feared there might be.
 

AANDYY

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Mine also rolls on steep hills, like this one, Hardnott Pass :D.

 

kth286

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its normaly the one way bearing in the box that fails, causing it to roll back on inclines , nothing to do with gearbox mode or oil level . hope this helps , oh and not that bad a job if you know what your doing ;)
Is that a box out job ? or can it be done with box in situ ?
 

phil c

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It's a box out job I am afraid ,the outer casing of the box off and then strip box down to locate the one way
 

BlackC55

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My E280 210 does it too. I don't tend to worry about it much.
 

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