OK, the trunk lock is acting up again. Rarely, the trunk won't unlock and open when the engine is turned OFF. When this happens, I have to pull the cable release located under the rear seat (driver's side) to open the trunk. This afternoon, for some reason, the trunk will ONLY open when I pull the cable release. I sprayed the inside and outside of the trunk lock with a special lock lubricant I have which normally works....this time no joy.

There is a slow leak in the vacuum system which is affecting the door locks; I know I need to track it down and fix it....seems like there is never enough time. About 18 months ago, I replaced the trunk lock vacuum actuator...it is hard for me to believe it would fail so soon. Also, I managed source a BRAND NEW genuine MB truck lock.....perhaps I should install it?

Now, when I manually pull the upper lever/cable to the left (which is what the cable release does), the trunk lock opens immediately. Sans that, the trunk lock is remaining stubbornly LOCKED. Photos are attached...my finger is pointed to the cable that I can pull to the right which unlocks the trunk lock. All ideas and input are appreciated!

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