Thanks Paul.

The fuel filter was the subject of my post. On this car it's not where you would normally expect it, i.e. near the right rear wheel.

I did a coolant change, which took a while, and didn't get around to looking for the fuel filter. My guess is it might be behind the fuel tank in the trunk.

By the way, about the coolant change. Eight quarts drained out of the radiator. I went to a lot of trouble to drain the block, and got a total of 1/2 quart out of both nipples, so it was a total waste of time removing all the covers undeneath to get access.

1992 400SE
1986 325e
1974 2002
2001 CLK320
2009 SL550