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Door/Trunk locks just stopped working - Vacuum?

6148 Views 12 Replies 4 Participants Last post by  LukeHill
Hi everyone,

I have a 1999 c280. Out of the blue, all of my door locks and my trunk release have stopped working. I'm assuming this is the vacuum pump?

If so, can anyone tell me where it's located so I can replace it? I haven't been able to find the information online.

I have seen a few posts that suggested it might be in the trunk. If so, how would I access it, as without vacuum, I can't get the trunk to open (even with the key).

Thanks in advance.
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Vacuum pump is located in the trunk, on the right side, to the outside of the battery. If memory serves, it is behind the fabric trim, and encased in a block of foam.


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