Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-26-2003, 06:54 PM
Blossom
Guest
 
Posts: n/a
Trunk Lock

I had a mechanic who took it upon himself to "adjust" the vacuum lock system on my 1981 240D. Granted, one of the locks gets sluggish from time to time, but now I can't open my trunk. I am wondering if it is the vacuum system or the lock itself. Is this something I can check or adjust myself? I am pretty handy for a girl, but not a greasemonkey. How much should the repair cost?
I live in NYC, but now use a fairly good one in Glen Cove, Long Island. Thanks in advance for your help.
Reply With Quote
  #2  
Old 06-27-2003, 04:38 PM
Rick Miley's Avatar
Spark Free
 
Join Date: Jun 1999
Location: Tampa, FL
Posts: 3,086
By adjusting you vacuum system, I'm going to assume that the vacuum control over the trunk lock was bypassed.

You say you can't open the trunk. Does that mean not even with the key? You should be able to insert the key into the trunk lock, turn it to the left about 30 degrees past horizontal, and push the button in with the key still in the lock. With the button pushed in, then lift the trunk lid.

If you can get this far, then we can guide you through diagnosing problems with the vacuum control. It's so easy, even a girl can do it. But if you can't get the trunk open with the key, then that's a job for a professional.
__________________
Rick Miley
12 Honda Pilot
14 Tesla Model S
Former MB: 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References
Reply With Quote
  #3  
Old 06-27-2003, 05:30 PM
Blossom
Guest
 
Posts: n/a
Trunk lock

Thanks so much for your reply. I have tried opening the trunk with the key. That is the only way I can do it, unless there is some secret release latch I don't know about. I was reading with interest another Mercedes owner whose trunk was stuck and coincidently, the A/C was blowing out of the defroster vents. He determined that this was a vacuum problem. I noticed my heat and A/C were coming out of different places around the same time my trunk lock started acting up. So, I thought I'd throw ithe problem out on the net for input.
Reply With Quote
  #4  
Old 06-28-2003, 01:41 AM
Senior Member
 
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
There is a tube (vacume line) that runs to each of the locks on your car. Chances are that the tube that goes to your trunk lock is no longer pluged into the trunk lock. If this is so then the question becomes: WHY is it disconnected? Was it done so intentionally for a reason or by accident. If it is disconnected try to plug it back in again and then test to see if the trunk locks and unlocks normally. Tell us what you find out.
__________________
Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra
Reply With Quote
  #5  
Old 06-28-2003, 08:44 AM
Rick Miley's Avatar
Spark Free
 
Join Date: Jun 1999
Location: Tampa, FL
Posts: 3,086
Ok, open the trunk with the key. On the inside of the trunk just below the latch there is a little access door that you can pop out with a screwdriver. Behind that door is the vacuum pod for the trunk lock.

The pod has two vacuum lines running to it. Both lines are yellow, one has a green stripe, and one has a red stripe. When air is sucked out of the red striped line, the pod locks the trunk. When air is sucked out of the green striped line, the pod unlocks the trunk.

You can test the pod by pulling the yellow lines out from the black rubber hoses, and sucking on the hosed individually. Each one should move the lock rod, and then should not allow any more air to pass through. If they continue to allow air in, then that is a vacuum leak and the pod should be replaced. They are available from Fastlane at the top of the page here.

Of course you can test these vacuum elements by mouth as I've described here, but there's a handy little device called a MityVac which is much better for the job. It has a gauge to measure the vacuum, so you can connect it, pump down the vacuum, and watch the gauge for a leak. You can pick one up at Autozone for around $25.

Let us know what you find out.
__________________
Rick Miley
12 Honda Pilot
14 Tesla Model S
Former MB: 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References
Reply With Quote
  #6  
Old 06-30-2003, 11:38 AM
Blossom
Guest
 
Posts: n/a
Wow! Thanks for your replies! I can't wait to follow your suggestions. Hopefully, I will gain use of my trunk for the 4th of July weekend. I'll keep you posted.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 09:30 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page