I have purchased and use the glow plug reamer on my 300D with great success. The SDL could probably use that treatment as well in the not too long future. All the glows measure 1.4 to 1.5Ohms - seems ok but it does run pretty rough when first started.

So my question is: could I use the reamer from my 300D to ream out the glow plug holes for my 300SDL?! Are they the same diameter holes?

__________________
1987 Mercedes 300SDL; SOLD
1985 Mercedes 300D; SOLD
2006 Honda Pilot - wife's ride; 122K;
1995 Toyota Land Cruiser - 3X locked; 182K