Power assisted trunk latch / door failure
Thread Starter
Almost a Member!
Joined: Jul 2003
Posts: 27
Likes: 0
Power assisted trunk latch / door failure
Hi all,
Have got a 95' S500 Coupe. Apparently the pneumatic, power assist in both the doors and trunk failed. Trunk lid locks but does not close flush with the cars body. I do however have air pressure to inflate the lumbar support in the seats however.
A fuse maybe? Any ideas?
Have got a 95' S500 Coupe. Apparently the pneumatic, power assist in both the doors and trunk failed. Trunk lid locks but does not close flush with the cars body. I do however have air pressure to inflate the lumbar support in the seats however.
A fuse maybe? Any ideas?
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Member
Joined: Apr 2003
Posts: 86
Likes: 0
From: Hong Kong
C200 Kompressor, S320
You can try this trick:
Inside the trunk on the right hand side. There is a fuse box. Remove fuse #3,6,9,11. Then wait for 30 seconds. Then put them back on.
Please tell me if it works. I have tried several times and it worked.
Good luck
Inside the trunk on the right hand side. There is a fuse box. Remove fuse #3,6,9,11. Then wait for 30 seconds. Then put them back on.
Please tell me if it works. I have tried several times and it worked.
Good luck
Thread Starter
Almost a Member!
Joined: Jul 2003
Posts: 27
Likes: 0
I will try the fuse pulling routine. THis seems to jive with what I read elsewhere about a Electrolytic Capactor failing inside the pump. When the fuses are pulled, the capacitor will discharge, which might bring the pump back to life, if ever so briefly.
Newbie
Joined: May 2003
Posts: 21
Likes: 0
From: Toronto, Canada
93 500 SEL, 92 MR2, 90 Eclipse
Originally posted by RD Sport
You can try this trick:
Inside the trunk on the right hand side. There is a fuse box. Remove fuse #3,6,9,11. Then wait for 30 seconds. Then put them back on.
Please tell me if it works. I have tried several times and it worked.
Good luck
You can try this trick:
Inside the trunk on the right hand side. There is a fuse box. Remove fuse #3,6,9,11. Then wait for 30 seconds. Then put them back on.
Please tell me if it works. I have tried several times and it worked.
Good luck
Thread Starter
Almost a Member!
Joined: Jul 2003
Posts: 27
Likes: 0
Hmmmm.
I hope I won't have to do this every week. But if I do, pulling 1 fuse is better than 4 !
.
I just am wondering what the root cause of the problem is.
Electrolytic capacitor are known to go bad over time.... I wonder if that is the real culprit here.
I hope I won't have to do this every week. But if I do, pulling 1 fuse is better than 4 !
.
I just am wondering what the root cause of the problem is.
Electrolytic capacitor are known to go bad over time.... I wonder if that is the real culprit here.
Thread Starter
Almost a Member!
Joined: Jul 2003
Posts: 27
Likes: 0
Hmmmmm
I am forceful.....on the doors. I would not call it slamming.
Before this happened, the trunk lid was not catching all the time and I would have to use alot more force than I normally use to engage the latch. I attributed it to a minor mechanical missalignment on the latch. In the past, it took almost no pressure at to close the trunk. My wife is gulity of always slamming the trunk and I told her not too... BUT now even I have to!
Now that the power assist is working again I still have to forcefully close the trunk a FEW TIMES before the latch engages.
Think its time to get a 1999 CL500
I am forceful.....on the doors. I would not call it slamming.
Before this happened, the trunk lid was not catching all the time and I would have to use alot more force than I normally use to engage the latch. I attributed it to a minor mechanical missalignment on the latch. In the past, it took almost no pressure at to close the trunk. My wife is gulity of always slamming the trunk and I told her not too... BUT now even I have to!
Now that the power assist is working again I still have to forcefully close the trunk a FEW TIMES before the latch engages.
Think its time to get a 1999 CL500
Thread Starter
Almost a Member!
Joined: Jul 2003
Posts: 27
Likes: 0
Well...............after pulling the fuse, the problem dissappeared for 8 hours.... and now its back again. hmmmmmmmmm
I guess I can:
1) Get a new pump
2) put a relay / timer in line with the #9 fuse
3) disect my pump
4) ?????
Is there a 4th option ??
I guess I can:
1) Get a new pump
2) put a relay / timer in line with the #9 fuse
3) disect my pump
4) ?????
Is there a 4th option ??
MBWorld Fanatic!
Joined: Jun 2003
Posts: 2,081
Likes: 0
From: Indiana
1986 560SEL, 97 BMW 740iL
Take it to a honest shop and let them do the tests. A non dealer shop could order a rebuilt or used part to save some bucks. Mine always ordered parts those are either the same year or later.
Newbie
Joined: Jul 2003
Posts: 17
Likes: 0
1993 300SD
contact George Murphy email address george_murphy@
compuserve.com I believe his firm can rebuild your unit.
He is very reputable. He is also technical director of the
Star magazine. My instrument cluster and central locking
pump is at his facility right now, being rebuilt.
compuserve.com I believe his firm can rebuild your unit.
He is very reputable. He is also technical director of the
Star magazine. My instrument cluster and central locking
pump is at his facility right now, being rebuilt.
