I just got a 1998E300D and was driving it on about a 4 hour trip about 3 hours into the trip as I began to go up a large incline, the check engine light came on and right away I noticed a huge loss in power, the car wouldn't get over 60mph the whole way up the hill. I could tell a large difference in power once I got to the top of the grade. I pulled off the highway and had it checked and the code Turbo/Wastegate soleniod malfunction came up. Is this a simple fix? Anyone have a pic of what the part looks like? Any idea on cost? Thanks for your help.