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Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53169
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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The electronic door and trunk lock on my s500 (2005) is not

Customer Question

The electronic door and trunk lock on my s500 (2005) is not working and the trunk handle is stuck open in a protruding manner instead of retracting when the trunk is closed
Submitted: 2 months ago.
Category: Mercedes
Expert:  Marty replied 2 months ago.

Hi, this problem is caused by a faulty PSE module located behind the paneling in the left side of the trunk. Fuse 62 in the rear fuse box below the passenger side rear seat powers the PSE module. Check the fuse and see if it's blown. If the fuse is blown you can try replacing it and see if the PSE module works. If the fuse is good you can try reinserting it into the fuse box and see if the PSE module resets. I've attached a fuse box diagram below.

Let me know if you have any questions.

Marty

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