Noise from passenger side of trunk
10-11-2018, 09:07 PM
#1
Newbie
Thread Starter
Join Date: Oct 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
S 500
Noise from passenger side of trunk
Very new to Mercedes but just acquired a 2003 s500. It is making a short burst of electrical noise from the left side of the trunk just in front of the disk changer. It lasts about a second and happens at least every 5 seconds. Sounds like some sort of actuator. Somebody mentioned it was a pump for pressurizing doors. any ideas on what it would take to fix short of taking it in? How big of a deal is it if this stops working all together? Any help is appreciated.
10-11-2018, 10:26 PM
#2
Very new to Mercedes but just acquired a 2003 s500. It is making a short burst of electrical noise from the left side of the trunk just in front of the disk changer. It lasts about a second and happens at least every 5 seconds. Sounds like some sort of actuator. Somebody mentioned it was a pump for pressurizing doors. any ideas on what it would take to fix short of taking it in? How big of a deal is it if this stops working all together? Any help is appreciated.
disconnect the 20amp fuse under the rear seat to unplug it until you find and fix the air leak
10-13-2018, 11:50 AM
#4
MBWorld Fanatic!
Replace the PSE fuse. Roll the driver's window down, then try locking and unlocking each door, the gas filler door and the trunk. If you have adjustable seat bolsters, try them. Try releasing the rear headrests. Listen for any hissing sounds. Anything that doesn't work is a probable leak.
If the pump continues to run, pull the fuse again and leave it out until you know why it is running.
If the pump continues to run, pull the fuse again and leave it out until you know why it is running.
