Might try removing and replacing the fuse that protects the cruise control. It is located in the fuse box located under the hood, drivers side. I don't recall exactly which one it was, but that did the trick for me when mine ceased to function. Might make note, even though the fuse didn't appear to be "broken", putting in a new one fixed the
The secret fuse box im after is called the pre-fuse for the auxiliary fan from what ive seen from that link! It does have a picture of its location but im guessing the engine bay layout is different for a LHD r170 as it looks different than mine and theres no fuse box next to my battery only a A/C box.
I had this problem again last weekend.It has come and gone over the past 3 years.There's a detailed rectification procedure with photographs posted on this site that I photocopied some time back.Finally decided to give it a try.The relay is on a PCB located in the black box next to the battery(RHD cars).I dismantled the PCB and cleaned the contacts with a sharp knife,I believe this is better
Fuse box diagram (location and assignment of electrical fuses) for Mercedes-Benz SLK-Class (SLK200, SLK230, SLK320, SLK32) (R170; 1996-2004).
6 days ago · Model: Mercedes Slk MK 1, R170 - Years 1997-2004. Part: Control unit. Operation: How to replace the ECU of the Mercedes SLK? In order to replace the ECU of the Mercedes SLK, the hood must be opened to gain access to the engine compartment. The control unit is protected by a plastic cover and is positioned immediately under the battery.
Mercedes-Benz SLK (R170) – fuse box diagram – fusecard 170 545 22 00. WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market. Electrical Distribution. Fuse panel. Mercedes-Benz SLK (R170; 1995 - 2004) - fuse box diagram.
