Automatic transmission rear engaging 'kick'
05-09-2016, 10:31 AM
#16
Racer
It sounds like Michel's car? Welcome. Where do you live?
Don
Don
05-09-2016, 10:43 AM
#17
05-09-2016, 11:48 AM
#18
Former Sponsor
If the reverse clutches got replaced, the replacement clutches are more severe, than they were originally, and sometimes engage very abruptly. (Mercedes changed the clutch material once they figured out the reverse clutches wore out before any of the other internal friction parts.)
Mercedes offered a restrictor which got installed into an oil galley to the reverse piston which delayed the pressure, making engagement softer, for certain applications.
This restrictor is no longer available from Mercedes. I've never found a supplier and hand make each one, when needed.
Mercedes offered a restrictor which got installed into an oil galley to the reverse piston which delayed the pressure, making engagement softer, for certain applications.
This restrictor is no longer available from Mercedes. I've never found a supplier and hand make each one, when needed.
05-09-2016, 12:05 PM
#19
Racer
No, not really the same problem. My tranny was just hesitant to engage in reverse( a 3 to 4 second delay), but I have not passed inspection yet. Still waiting till next week, then,see how the car drives, after being in the seat, for an hour or two.
05-09-2016, 01:23 PM
#20
If the reverse clutches got replaced, the replacement clutches are more severe, than they were originally, and sometimes engage very abruptly. (Mercedes changed the clutch material once they figured out the reverse clutches wore out before any of the other internal friction parts.)
Mercedes offered a restrictor which got installed into an oil galley to the reverse piston which delayed the pressure, making engagement softer, for certain applications.
This restrictor is no longer available from Mercedes. I've never found a supplier and hand make each one, when needed.
Mercedes offered a restrictor which got installed into an oil galley to the reverse piston which delayed the pressure, making engagement softer, for certain applications.
This restrictor is no longer available from Mercedes. I've never found a supplier and hand make each one, when needed.
05-09-2016, 08:39 PM
#21
How come you know Michel? Were you the one who wanted to buy it before I did?
Where doe's yours come from?
05-09-2016, 08:41 PM
#22
If the reverse clutches got replaced, the replacement clutches are more severe, than they were originally, and sometimes engage very abruptly. (Mercedes changed the clutch material once they figured out the reverse clutches wore out before any of the other internal friction parts.)
Mercedes offered a restrictor which got installed into an oil galley to the reverse piston which delayed the pressure, making engagement softer, for certain applications.
This restrictor is no longer available from Mercedes. I've never found a supplier and hand make each one, when needed.
Mercedes offered a restrictor which got installed into an oil galley to the reverse piston which delayed the pressure, making engagement softer, for certain applications.
This restrictor is no longer available from Mercedes. I've never found a supplier and hand make each one, when needed.
Thank's
05-10-2016, 08:30 AM
#23
Racer
Hey Don, just bought the S4? Let me tell you that I absolutely loves this car & you won't regret it. It's old style performance & it hold's on to the road like glue, even at near 240...
How come you know Michel? Were you the one who wanted to buy it before I did?
Where doe's yours come from?
How come you know Michel? Were you the one who wanted to buy it before I did?
Where doe's yours come from?
My car came from PEC in Ontario, originally from Toronto, undriven for 2 years, but no rust and in great shape. It is now ready for inspection next Tuesday.
Cheers
Don
05-10-2016, 12:10 PM
#24
Former Sponsor
05-10-2016, 12:13 PM
#25
Former Sponsor
Yes, different problem. The long delay, followed by a hard engagement is from worn reverse clutches. The delay is caused because the piston has to travel much further to compress the clutches.
05-10-2016, 12:16 PM
#26
Former Sponsor
05-10-2016, 01:32 PM
#27
Interesting. Were can I get one? Can you sell one to me? Also, is there any thread on the subject were I can see what your explaining? I think I have an exploded view in a M&R manual but not sure.
05-10-2016, 01:36 PM
#28
Sorry, I saw this message after I posted my last reply