Hello everyone I am new to this forum and have couple of questions regarding some problems I just recently encountered on my 92 500SEL. When I press the remote to unlock/lock the doors, the doors dont lock/unlock. Same goes with the trunk. The worse part is that the lock/unlock button inside the car also doesnt work, so basically nothin works. Now i have to open/lock all doors manually. First, I check the fuse and found out that #11 was burned out in the trunk fuse box. I replaced it and the trunk lights work agian, also the remote and everything works as normal. But somehow like a couple of seconds later, it was messed up agian. Can someone help me with this problem?

Another problem i have is that my windows dont do the auto one touch button on the window to roll up and down anymore, it suppose to automatically close and open with one touch of a button. Now its not working, I would have to keep on holding the button up or down to get the window to open or close. Does anyone know what kind of problem this is and how can we fix it.

Sum it up:
1. Door/trunk dont lock or unlock via remote. Also the lock/unlock button inside car doesnt operate either.
2. Window dont auto close and open no more.

Thanks in advance for your help

 

those have in common when it comes to KFB (convenience feature control unit).

it needs troubleshooting.

 

So sleepwalker thanks for the reply. So what do I do now. My locking system doesnt work anymore. Wont lock or unlock via remote nor does the unlock/lock button in the car. And also the windows dont. How do I troubleshoot it.. I heard something about reseting them. Do you know how?

 

i know how because i got troubleshooting guide such as this

[IMG]local://upfiles/1/91A61AF683DA48C4B86183AAA5339F70.jpg[/IMG]

 

.

[IMG]local://upfiles/1/6DA75F42100645FBB9A2C91E8EE6B7CC.jpg[/IMG]

 

'

[IMG]local://upfiles/1/72857ED517E14AE8BFEFB7C7CD42DC38.jpg[/IMG]

 

HI Sleepwalker thanks for the guides. Which one is for the reseting the locking system. Seems like you gave me the guide for the windows?.... please let me know thanks agian.

 

resetting? there's no such thing.

if your PSE pump got problem, then you can reset it by pulling and re-inserting the fuse.

 

HI i check the fuse and everything pullin it out and puttin it back in but nothing happens the remote still wont open the doors and the lock/unlock button still wont work. What should I do now. Everything is maually lock and unlock, very inconvience. please help me. Thanks