My wife owns a neglected '86 300E that has developed a chronic case of cold starting difficulty. It's often necessary to crank the starter for 30 sec. before the engine fires. Once started, the engine runs fine. Two mechanics have told me, independently, that leaking fuel injectors are the likely culprit. I'm going to try a tune-up first, but if that doesn't work, I may try to replace the fuel injectors.
Is this a task that I can do at home with simple tools and limited experience, or is this a job best left to prfessionals? What's involved?
Thanks for the input!
Mika