Only Truck lock working remaining stopped
Thread Starter
Junior Member
Joined: Feb 2022
Posts: 25
Likes: 0
w220 s320
Only Truck lock working remaining stopped
Dear Team,
i have a problems in my Mercedes w220 s320 2000 model
The first problem is i can open and lock trunk using key and driver door switch i mean only trunk working. and rear head rest also working, remaining all stop, central lock, lumbar support, petrol lid all stopped.
i thought pse pump have is bad, I removed from the trunk and i checked motor is working fine, Motor only work when i press trunk button from key or driver door. If i press central lock motor not moving or working
i removed the fuse of the pse pump from real passenger right down side, Still not working only trunk works, what will be the issue?
i have a problems in my Mercedes w220 s320 2000 model
The first problem is i can open and lock trunk using key and driver door switch i mean only trunk working. and rear head rest also working, remaining all stop, central lock, lumbar support, petrol lid all stopped.
i thought pse pump have is bad, I removed from the trunk and i checked motor is working fine, Motor only work when i press trunk button from key or driver door. If i press central lock motor not moving or working
i removed the fuse of the pse pump from real passenger right down side, Still not working only trunk works, what will be the issue?
Thread Starter
Junior Member
Joined: Feb 2022
Posts: 25
Likes: 0
w220 s320
No i didn't changed anything ,suddenly this happen, all system was working good before one morning all this happent
i am confused why only trunk works. Why other system not working?even i cant hear the pump sound,sound only comes whn i press trunk button
i am confused why only trunk works. Why other system not working?even i cant hear the pump sound,sound only comes whn i press trunk button
Last edited by raez77; Jun 20, 2023 at 12:43 PM.
Super Member
Joined: Jun 2018
Posts: 533
Likes: 39
From: Northern Hemisphere - Chicago
fleet
welcome to the w220 world
by 2023, the lines going from and to the PSE drunk pump have leaks by now. there are repair kits instead of a full line like at dealer. however,
i dont know how to test each circuit, do I just pump some vacumm on each line?
I got similair problem, but if i use trunk button a fuse pops
by 2023, the lines going from and to the PSE drunk pump have leaks by now. there are repair kits instead of a full line like at dealer. however,
i dont know how to test each circuit, do I just pump some vacumm on each line?
I got similair problem, but if i use trunk button a fuse pops
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,150
Likes: 533
Mercedes
Your pse pump can shut off individual circuits that are bad , so if one soft close door has a air leak , it will shut off that one but the rest will still work
in your case the pump is shutting off the trunk for a reason most likely a leak
in your case the pump is shutting off the trunk for a reason most likely a leak
Thread Starter
Junior Member
Joined: Feb 2022
Posts: 25
Likes: 0
w220 s320
for me only trunk works. If i press trunk button i can hear pse working, If i press central lock 4 signal light blinks but door not locking or i cant hear any sound from pse pump, lumber, i noticed that lamber support also stopped, now only two things working trunk and rear head rest remaining all gone can't hear any sound.
Last edited by raez77; Jun 21, 2023 at 01:10 AM.
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