Does any one know something about this(is from NEEDSWINGS)
Genuine OE


Estimated Lead Time: 2-4 Days
9 review(s) | Add your review
$179.95

10 Does any one knows something about this:Relay Control Module ( RCM ), we are seeing these original modules fail now on slk320, slk32, and all Crossfires causing issues with Engine Starting, Engine Fan Speed, 2ndary Air Injection Pump, Fuel Pump Power, Horns and Supercharger engagement (on SLK32 and SRT6). This is the new plug and play replacement module. No programming required.