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 09-08-2003, 01:52 AM
MARIO FARIAS's Avatar
Registered User
 
Join Date: Jul 2003
Location: PUERTO LA CRUZ, VENEZUELA
Posts: 90
Urgent

PLEASE, I need your help. My 190 E, 2.6L, 1988, was token to

the Blacksmith for fixing the Locks. This Guy does'nt know how

lost the vaccum signal pressure, then We can't lock the doors.

What are the critical points for checking the vaccum pressure?

We feel vacuum pressure going out from the engine, but not enough vaccum at the driver door?

How to increase the vaccum pressure?

Any possible damaged parts to change? How to test it?

I would appreciate a vaccum system diagram.

Thanks.


Mario Farias

laprefar@cantv.net
__________________
MB LOVER
Reply With Quote
  #2  
Old 09-08-2003, 02:34 AM
zeronero's Avatar
Registered User
 
Join Date: May 2003
Location: San Francisco Bay Area
Posts: 426
I used to think that the who system was sealed. After my car was rear ended though the line that goes to the trunk got cut. When I would lock or unlock doors air would escape or get sucked in. All the locks still worked though. Later a patched the line with some tubing but it lead me to think the each unit on the lock must make its own vacuum.
__________________
1992 Mercedes-Benz 400E
2002 Mercedes-Benz ML500
Reply With Quote
  #3  
Old 09-08-2003, 10:59 AM
Registered User
 
Join Date: Jul 2001
Location: SoCal
Posts: 1,303
Lock 'vacuum' has nothing to do with the engine. The pump is under the rear seat, and supplies either positive air pressure or vacuum to all the locks at once when it receives the appropriate electrical trigger from one of the front door lock switches or the trunk.

Steve
__________________
'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7
Reply With Quote
  #4  
Old 09-08-2003, 05:10 PM
MARIO FARIAS's Avatar
Registered User
 
Join Date: Jul 2003
Location: PUERTO LA CRUZ, VENEZUELA
Posts: 90
STEVE

sTEVE, Thanks. May I have a diagram of the vaccum system with the parts?




Mario Farias
laprefar@cantv.net
__________________
MB LOVER
Reply With Quote
  #5  
Old 09-09-2003, 03:12 PM
Registered User
 
Join Date: Jul 2001
Location: SoCal
Posts: 1,303
I don't have a diagram. Remove the rear seat bottom with the two latches, then pull the foam cover carefully away from the pump. See what happens if you try to operate either front lock or the trunk one. Pump should come on until pressure builds, then shut back off. If it doesn't shut off within a couple of seconds, you have a leak, and will have to trace the tubing/connectors until you find it. There is one line to each actuator - 4 doors, trunk, and gas filler door.

Steve
__________________
'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7
Reply With Quote
  #6  
Old 09-10-2003, 10:37 PM
MARIO FARIAS's Avatar
Registered User
 
Join Date: Jul 2003
Location: PUERTO LA CRUZ, VENEZUELA
Posts: 90
SBOURG

tHANKS Steve.

You have reason, the pump is down the rear seat and it is the only device that supply vacuum to the doors. My pump is burned, and the mini compresor is stucked or blocked.

The Blacksmith didn't know how to oparate the vacuum system lock and did'nt take care about leaks and the continue time operating the pump.

At least he fixed the mechanical part of the lock, and now we can lock the doors only with the key without vaccum.

I have ordered the vacuum pump.

Mario Farias

laprefar@cantv.net
__________________
MB LOVER
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 03:41 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