Hello. Any advice on the following appreciated. My car (2004 R170 SLK320) apparently requires a new K40 relay which I understand is a fairly common issue. Can I get some direction as to how much one of these should cost as a part? Thanks in advance, Paul
00slk
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About £30 from MB
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Completely unrelated to the original question so feel free to ignore, but I had a moment of nostalgia reading the title of this thread. 
Back in the early 80's a K40 was a high end mobile CB aerial (maybe still is), and whenever we spotted a car with one it was - look he's got a K40!
Back in the early 80's a K40 was a high end mobile CB aerial (maybe still is), and whenever we spotted a car with one it was - look he's got a K40!
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