I live in Northern Va. and would like to know the shop you went to...so I never go to them my self. American service Center in Alexandria has had good words written about them.
1983 300SD 343K everyday car
1983 300SD 285K from junk yard-tooks parts from deer car- runs great. Brothers car.
1984 300SD parts car-Hit deer
1979 300D 175K non-turbo "Doctor"
1979 300d parts car