PeachParts Mercedes-Benz Forum - View Single Post - 617 engine, replacing the oil separator check valve in the upper oil pan.

dmorrison · #2 04-29-2005, 02:12 PM

Photo #6. Now to get to work. I removed the air filter assembly so I could clean the drain tube out. I did not take a picture of that. This picture shows the car on 2 sturdy jack stand and you need to drain the oil. Once you remove the oil pan the engine, oil will continue to drip. Lots of rags and you will get oil on yourself.

Photo #7 This is the lower oil pan . Use a 5MM allen wrench setup to remove all the allen head bolts holding the oil pan. The oil pan is light and 1 allen head bolt will hold it in position but make sure you don’t bend or twist it. There will be an ounce of oil in the bottom of the pan when removing it.

Photo #8. 4 bolts are of a different length and should be kept track of. This, out of focus, picture shows the driver side transmission cooler line holding bracket. This bolt is longer that the others. Also on the transmission cooler lines are 2 spacers, don’t forget these.

Photo # 9. On the passengers side of the engine are the 3 other bolts that should be kept track of. The other transmission cooling line holding bolt ( and spacer) and the 2 bolts that hold the AC high pressure hose in position on the upper oil pan area. The AC hose bolts also have nuts that do the actual AC hose hold down. The 2 bolts that hold the oil cooler lines are longer that the AC hose bolts.

Photo #10 The culprit. The opening on the top that has the sleeve and check valve is the oil separator drain tube unit. The other large opening is the turbo oil drain line tube. Notice the amount of sludge in the check valve.

continued

Dave