You don't want to know about fuel lines. I just replaced about half of the fuel supply line (tank to mid-body) on my '83 300D. MB has decided to stop stocking thos eguys in the US. Price went through the roof. I went to local auto parts place and bought 5 foot length of steel 5/16 fuel pipe, a length of 5/16 fuel hose and a box of clamps for said hose. Removed old fuel line and bent a new one as close as possible to original. Installed new line and joined old to new with hose and clamps. No leaks anymore. Whole project started because I had to replace the rubber hose on the return line where it connects to the tank. The fun part: you have to lower the rear subframe to get to all this piping. Considering the car is pretty much on its last legs, I'm surprised I didn't just call Bernard and tell him to come haul the car away. I'm gonna try for the 400K mark (391k now) but one big expense and this beast's history.