Question about 2000 Mercedes-Benz S-Class

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POWER LOCKS NOT WORKING

CAN HEAR SOUND IN TRUNK BUT WON'T LOCK

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You will need to reove the door panel and inspect the lock motor to see if the rod has come off to the door latch or the lock actuator motor is the problem.

Posted on Oct 26, 2012

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Posted on Jan 02, 2017

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merctechniqu
  • 229 Answers

SOURCE: I have a 2001 Mercedes

first try with mettle key blade insert mettle key blade in to the boot lid key hole witch is near the rear number plate light at left hand, then
1 turn key fully left and press it in if not work
2 press key in and then turn fully left
did it work? if not you have to do some other way to do it before do that try several time no 1 and 2 might work if still not work do as fallow
send me a contact email my email is merctechnique@yahoo.co.nz It's not a good thing to publish thieves can use it to rob cars.

Posted on Oct 14, 2010

  • 18 Answers

SOURCE: remote won't lock or unlock doors

You either need to replace the battery(s) or reset the codes which should be in your owners manual

Posted on Apr 13, 2012

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Trunk won't open


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Trunk won't open


The actuator may sound as though it is working but the latch could be damaged or misaligned. Also, the actuator could be too weak to operate the latch. If it is necessary to replace the actuator, your Camry is old enough to make a junkyard a likely source.

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My trunk won't open, I have tried my trunk button and the key won't work, it worked fine a few hours, but even when i try to do it manually it won't open. Also I would look in and try the...


There are 3 phases to fixing your car's trunk lid release problem.

Phase 1: First check the fuse - once you know that's OK, then proceed to phase 2 (below).
The fuse for the trunk lock is
the bcm (pwr) 15A fuse in the instrument panel fuse box (behind panel at drivers right foot)

Check that fuse, as it is the power supply for the button on the dash that sends power to the actuator in the trunk.

Phase 2: Get the trunk open (without taking it to the dealership).
If you have remote keyless entry to the trunk, you could try that - but with the actuator
dead/dying, it shouldn't work.

Here are a couple of ideas to try to enter trunk while (a) actuator isn't working, and (b) all
valet lockout features (designed to deny valets access to the trunk) are in the "Lock" position:

There is the lock cylinder, which you stated is not functioning - put the key in, and it doesn't
turn. Just to be sure, consider: lubricate key with Graphite lock-type lubricant, and retry.

The trunk has 2 valet safetys...the locking rear seats which require access to the trunk to unlock, and then there is a valet switch in the trunk that locks the button on the dash from working to keep valet parking attendants out of the trunk. That may be in the lock position.

You can try accessing the center area of the fold down rear seat and see if you can unhinge the rear seat from there. Maybe reach in with your hand, or an extension-type tool.

there may be a way to fold the hinge away from the seat back so it can be removed from the hinge and give you access to the safety latch in the trunk and open it that way (white handle in trunk).
The white-handled safety latch release is desiged to prevent accidentally trapping children, and
if you can pull it with your extending-type or grasping-type tool, the trunk will open whether or
not the actuator motor is working.

Phase 3: Replace the Problem part.

Your failed part may be either (1) Trunk Release Relay, or (2) Trunk Lock Release Switch

My Satrun ION manual doesn't cover either of these parts, and the online parts houses, e.g.
http://www.rockauto.com/catalog/x,carcode,1431624,pgname,Electrical-Switch%2B%2526%252338%253B%2BRelay,a,search.yahoo.com%2BSearch%2Bfor%2B2004%2BSATURN
fail to provide instructions. One of those times a mechanic has to t=rely on his/her native
handiness and/or experience.
To identify which of these parts is bad, locae the Trunk Release Relay (call your dealer parts
dept. for helpful tips on finding it), then operate the dashboard trunk release button with your
ear close tothe relay - if it makes a noise, the problem is the Trunk Lock Release Switch in
the trunk lid, otherwise its the relay.

Aug 15, 2011 | 2004 Saturn ION

1 Answer

'91 LS400, trunk will not open. key will not turn, electric latch switch clicks but won't open. valet lock in open position. Tried 1) disconnect battery, reconnect battery, use switch, push down on...


If you hear the sound of the electric latch switch, then it's working but stuck somehow. Just put the key in the switch and turn it to the right and then pull up the trunk or ask someone to help you. it will open. I tried it today and it opened with me. It was stuck from inside by some kind of a broken plastic pieces. Just removed it and now it's working fine. good luck

May 26, 2011 | 1991 Lexus LS 400

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