Have a 2014 SLK 250 a little over a year old now with 6700 miles. Back in mid Nov, as I posted at the time, my wife and I drove to a SE US SLK meet and had a great time. Continued the drive up into NC that day and then home the next. SLK ran sweet until 30 miles or so out side Columbia when, in heavy rain, I kicked it when passing. CEL light came on and we were in limp mode. Made it home, restarted, CEL disappeared and all seemed well. Weeks later when we finally had a free weekend, we tried to take it to see my daughter but the CEL came back on before we got to the interstate. Next week, into the dealer, who updated some firmware and gave it 4 new plugs. Now being a bit gun shy I took the long way home and hammered it. Ran sweet. Last Sat we took it on our trip to Fla to see family. Ran fine for 3 hours until, again in the rain, I kicked it and the CEL light came on. I immediately pulled over and restarted. CEL cleared and off we went... very gently. Was almost to our destination, another 5+hours,(Venice) before I was brave enough to push it a bit. Ran sweet as before. Drove the H... out of it, for the next 7 days including a smoking fast run home almost all top down. Don't you love it when traffic seems to oblige your every whim?. Great fun!
Point of all this is, the two and ONLY two times we've driven our SLK in the rain, we've had problems. Wife is NOT happy to say the least. Dearly loves our SLK but is seriously irritated that we're having these problems. Any one else have similar problems or or any suggestions as to what might be the problem? Obviously water is getting some where it shouldn't but only shows up when under heavy load.
Planning to take it to the dealer in a week or so and avoid rain until then.
Point of all this is, the two and ONLY two times we've driven our SLK in the rain, we've had problems. Wife is NOT happy to say the least. Dearly loves our SLK but is seriously irritated that we're having these problems. Any one else have similar problems or or any suggestions as to what might be the problem? Obviously water is getting some where it shouldn't but only shows up when under heavy load.
Planning to take it to the dealer in a week or so and avoid rain until then.