As with 99% of things on these cars, DIY, save a ton. Use a 3/4" hex wrench (fits the 19mm hex nice and tight - tighter than the "proper" 19mm) and then a cheater pipe (old, slightly bent M-cycle fork tubes work great, otherwise, use a half jack handle or a piece of 2" sch80 iron pipe).

To GET to it easily, you need to remove the intake and exhaust manifolds (inc. turbo, etc.), so pick up a turbo mounting gasket set (inc manifold gasket) before you dive in. Or you can try getting the plug out without removing anything. THEN remove the manifold.........

Good luck man, been there before.

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1984 300D Turbo - 4-speed manual conversion, mid-level resto

1983 300D - parts car

1979 300TD Auto - Parts car.

1985 300D Auto - Wrecked/Parts.


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"If you don't know where you are going, any road will get you there". Lewis Carrol