Join Date: Aug 2014
Location: Punta Gorda, Florida
Vehicle: '02 SLK32 AMG in "naked" MB color that was used for getting a car's weight to be under a HIGH number
Other Toys: bike as in road bike, 13lbs. A beautiful machine!
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Well, a failure so far with the tune. I thought I had the performance tune loaded without a hitch but the idle was poor and little power, called Euro. And we got the stock tune back in. Now it seems the SC is not engaging. The motor idles fine but ther e is a serious lack of power. In neutral it would not rev past. 4000rpm. In the drive gears it will rev to redline slowly, again like it has no SC. I am not convinced it is a tune issue yet. I had to remove the negative battery cable and when I reinstalled it the alarm was tripped. Put the key into the ignition and it shut off.
What could cause the SC to NOT engage? I see two wires go to it, is there a fuse or link that could have blown that. Sends voltage to the SC? Any other suggestions so I can complete this thread? Thanks, Mark
Eurocharged said it could not be the tune since both the performance tune and the stock tune are acting the same. They suggested I had a bad inter cooler pump, no pump, no SC. That make sense to anyone?
Then from my own reading how about the dreaded K-40 relay? I'd get a replacement relay if I could confirm it is bad, any way to do that besides looking at the soldering, such as a voltage output nearby the K-40? The fuses, 40 amp and the smaller ones that are in that relay are all good, 3.8-4.1 ohms.
last does anyone know of a shop that really knows these cars besides a dealer between Sarasota and Ft. Myers?
After some difficulty with the tune reflashing I decided to remove the negative battery cable to get it to hold the battery post tighter. Upon the reinstall the cable arced a little and set off the alarm. Putting the key into the ignition resolved that. Anyone see anything among these bits of data or have a suggestion for resolving the issue? Mark
Last edited by Sweet04; 12-15-2014 at 11:20 PM.