Trailer socket fuse

Discussion in 'R-Class' started by Pete65, May 8, 2017.

  1. Pete65

    Pete65 New Member

    I have 2006 MB R 320 CDI. I installed an aftermarket trailer hitch with harness specified for r-class. Everything went well. The connector fits perfectly into the SAM, but trailer lights don't work. No power to socket. I found from internet there are fuses #70 and #72 at rear fuse box for the trailer, but in my car there are only 65 slots for fuses in the rear fuse box. I also read that relays K and U must be installed into the rear fuse box, but there is no slot for the relay U.
    Does anybody have a solution for this problem?
    Do I need to buy a new rear fuse box?
    Thank you in advance.
     

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