Soft Close Is Gone! Helppp
Senior Member
Joined: Jul 2003
Posts: 455
Likes: 1
From: Fl
92 500sel/01 320e wag
This should answer your questions
http://v12uberalles.com/
http://v12uberalles.com/
Junior Member
Joined: Jun 2006
Posts: 38
Likes: 0
Also - one finding from times when my closing at on of my doors was not working as it should (question of a microswitch - that I described earlier; and not the pump).
If the door in question was the last one to be shut, and the window was fully up, probably the pressure inside the car was prohibitinig the whole door, and subsequently the switch, to get to a position where it was able to initiate the sucking (send a proper signal to the pump) and in most cases no action was initiated.
If, during closing of the door in question, any other door was left open, or the window of the "questionned" door was at a bit down, the in-the-car pressure was not there (I imagine) and the sucking worked OK (the door was able to get to a position where the switch was able to send a signal). It seems that the switch was working improperly and not able to engage at this "slighly earlier position".
And obviously the most used door are prone to this failure. Nothing to do with the pump.
If the door in question was the last one to be shut, and the window was fully up, probably the pressure inside the car was prohibitinig the whole door, and subsequently the switch, to get to a position where it was able to initiate the sucking (send a proper signal to the pump) and in most cases no action was initiated.
If, during closing of the door in question, any other door was left open, or the window of the "questionned" door was at a bit down, the in-the-car pressure was not there (I imagine) and the sucking worked OK (the door was able to get to a position where the switch was able to send a signal). It seems that the switch was working improperly and not able to engage at this "slighly earlier position".
And obviously the most used door are prone to this failure. Nothing to do with the pump.
Junior Member
Joined: Sep 2005
Posts: 63
Likes: 1
From: Chicago, IL
1995 S600 Sedan
Thanks for the plug Peter.
Here is a direct link to our friend Brett's excellent article...
http://v12uberalles.com/Closing_Assist_Pump.htm
Here is a direct link to our friend Brett's excellent article...
http://v12uberalles.com/Closing_Assist_Pump.htm
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Joined: Feb 2004
Posts: 54
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From: New Jersey
1984 300 D // 1995 Lexus ES300 // 1998 S320 // 2000 S500 // 2006 Lexus LS430 // 2007 Ford Expedition
I have a similar issue where my soft close doors and trunk were not working. So I was told that I have to cycle a certain fuse in the trunk fuse box. Everytime I take the fuse out and put it back in, the system works once, and then halts again. Will following the v12 article help me to fix this once and for all, or is my case different?
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Joined: Sep 2005
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From: Piedmont, CA
2005 S55
I have a similar issue where my soft close doors and trunk were not working. So I was told that I have to cycle a certain fuse in the trunk fuse box. Everytime I take the fuse out and put it back in, the system works once, and then halts again. Will following the v12 article help me to fix this once and for all, or is my case different?MB World Stories
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Senior Member
Joined: Jul 2003
Posts: 455
Likes: 1
From: Fl
92 500sel/01 320e wag
I have a similar issue where my soft close doors and trunk were not working. So I was told that I have to cycle a certain fuse in the trunk fuse box. Everytime I take the fuse out and put it back in, the system works once, and then halts again. Will following the v12 article help me to fix this once and for all, or is my case different?
Member
Joined: Apr 2004
Posts: 105
Likes: 0
1997 S600 Sedan
I have a similar issue where my soft close doors and trunk were not working. So I was told that I have to cycle a certain fuse in the trunk fuse box. Everytime I take the fuse out and put it back in, the system works once, and then halts again. Will following the v12 article help me to fix this once and for all, or is my case different?Brett
Member
Joined: Jun 2005
Posts: 76
Likes: 7
From: Oslo, Norway
1998 C140 CL500
I do not have the V12 article, but for adjusting the cut off pressure of the Close Assist;
1. Find the pump under the carpet in front of the fuel tank,
left-hand side when viewing into the trunk. Its encased in foam.
This is a Coupe variant, with fewer lines;
2. Carefully disconnect the lines with a small spanner to help.
3. Remove the cover. If I remember correctly, to remove, use
a flat screwdriver on the gap between the bottom and the cover.
Possibly also remove the 2 top screws.
4. Reconnect the lines (no need to reconnect the vent line) and operate
soft-close while watching the pressure cut off seen here;
5. If it does not active, and the pump runs for 10s and time out;
Turn the hex adjusting bolt outward for the pump to shutoff at lower pressure.
6. Make sure that the door actually closes fully before the shutoff pressure is reached.
Hope that helps.
br,
syljua
1. Find the pump under the carpet in front of the fuel tank,
left-hand side when viewing into the trunk. Its encased in foam.
This is a Coupe variant, with fewer lines;
2. Carefully disconnect the lines with a small spanner to help.
3. Remove the cover. If I remember correctly, to remove, use
a flat screwdriver on the gap between the bottom and the cover.
Possibly also remove the 2 top screws.
4. Reconnect the lines (no need to reconnect the vent line) and operate
soft-close while watching the pressure cut off seen here;
5. If it does not active, and the pump runs for 10s and time out;
Turn the hex adjusting bolt outward for the pump to shutoff at lower pressure.
6. Make sure that the door actually closes fully before the shutoff pressure is reached.
Hope that helps.
br,
syljua
