I am a brand new '85 300sd owner of one week. Have a persistent oil leak and I dropped car off with mechanic who has been working on this car for the past six years.

He told me that the car is in good shape and the only thng that he felt needed to be done was a glow plugs replacement prior to cold weather. Is this a difficult do-it-yourself for a novice? If he does it, what would it typically cost?

Love the car and this forum!