I need to replace the front crank seal on my 98 audi a4 and also the passenger side cam shaft seal i have access to both i can not get the cam seal out any ideas on to get it out ? and also i can not remove sprocket on the crank shaft to get to the seal any ideas on how to get that out ?

SOURCE: Change the Front indicator on an Audi A4 2001

Take out the two Torx bolts on top of the headlight assembly. Then there is a third hidden bolt. Look through the holes in the top front of the fender, above and behind the headlight's turn signal portion (you'll probably need to shine a light in there) and you'll see the third bolt. Remove that and the headlight pulls straight forward and out. Then you can change the bulb.

SOURCE: how to remove front door panel to replace window

FIRST CHECK THE CABLES THAT RUN INTO THE DOOR BECAUSE THEY CAN GET CUT THOUGH COMMON PROBLEM (JUST WERE THE DOOR HINGES INSIDE RUBBER BOOT.) DOOR PANEL REMOVAL...... PRIZE OUT THE TRIM PANEL AT THE BASE OF ARMREST UNDO TWO SCREWS (DRIVERS SIDE) OR ONE SCREW ACCESSIBLE THROUGH THE ARMREST UNDO THE SCREW AT THE BASE OF THE DOOR TRIM IN THE CENTRE. STARTING AT THE FRONT EDGE CAREFULLY PULL THE TRIM PANEL (ABOVE THE INTERIOR RELEASE HANDLE ) AWAY FROM THE DOOR TO RELEASE THE CLIPS, THEN SLIDE IT TO THE FRONT TO UNHOOK THE REAR EDGE OF THE TRIM PANEL.UNDO THE 4 SCREWS IN THE TRIM PANEL RECESS NOW PULL THE DOOR PANELAWAY FROM THE DOOR FRAME RELEASING THE RETAINING CLIPS, SOME FORCE WILL BE NEEDED PREPARE FOR SOME CLIPS TO BE BROKEN THEN LIFT THE DOOR PANEL UP SQUARELY NOW YOU CAN EASILY GAIN ACCESS TO ELECTRIC MOTOR.HOPE I WAS SOME HELP TO YOU THANKS STAN

SOURCE: 2000 Mitsubishi Galant, EA3A 2.4l motor. Oil leal

don't use 20w50 that is too heavy an oil for that motor. the most i would use is like a 10w40 and that is a last resort. your valves need adjusting or the hydraulic lash adjusters may be gunked up. there is a chemical called auto-rx (search web) that could help you out. just follow the directions for it. the only other oil seals i can think of are oil pan gasket, oil filter gasket, rear main seal, valve cover gasket.

SOURCE: door panel

Here's how:

First, take out the two screws at the top of the door panel, screwed into the top corners and pointing toward the middle of the door panel.

Second, inside the door pull (where you pull the door shut) is one screw pointed backward - remove that. Then force the inside "lining" of that pull downward and remove it.

Third, remove the screws you have just uncovered (two on the front door, one on the rear door).

That's it - just lift the panel upward and it'll be off.

SOURCE: Audi A4

Not sure if they've changed it but this is what i do for my 99 a4

First remove the screw in the handle pull, it should be next to where your fingers go.
Pull down on the black piece of plastic and remove the screw form the door
Then remove the screws on either end of the door, one near the door jam on top and one near the other side, same place.
Finally pull up then out and the door panel should come out

Hope that helps