Originally Posted by ILUVMILS

This post got me thinking. Tha last of the water damaged vehicles at my dealership finally got OK's from the insurance company to start repair work. It's a 2002 E320 with about 35K on the clock. When it came in several weeks ago (on a flat-bed) it didn't run, but it cranked over OK. We found the air filters and MAF sensor soaked. A compression test revealed cylinder #4 to be a little low, about 145 PSI vs. 175 PSI for the rest. The insurance company authorized removal of both cylinder heads to inspect for internal damage. The piston-to-deck height @ TDC was checked and found to be uniform across the board, however, the #4 piston appeared to be turned slightly clockwise when looking closely, straight down at it. I don't know if the compression was low before the water event, but I doubt it. We're going to recommend replacing all the rods and the #4 piston, but with insurance companies you never know. They may only want to replace the #4 rod or they may pay for a shortblock.