Replacement for PSE? The locks and trunk are inoperative.

dlmx_621

New member
Sep 5, 2024
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The lock mechanism on my 2011 SL550 is inoperative, as is the trunk. I observed my surroundings briefly and surmise that is the PSE. However, I am uncertain about what to replace and how to troubleshoot if that is really the issue. Does anybody possess expertise about the difficulty of replacing it? What components do you change to rectify the issue? Thank you for your assistance.
 
Initially, reset the pump timeout switch by detaching the rear battery and thereafter reconnecting it.

If it works temporarily, there is likely a leak in the system, possibly in the boot lock.
 
I just changed my battery; all components function well except for the locks and trunk. It also indicates that the trunk partition is open.
 
Initially, reset the pump timeout switch by detaching the rear battery and thereafter reconnecting it.

Have you completed this? The pump will reset if a leak is detected