Installation (lower Oil Pan- A4 & A6) Audi A6 C5

1. Ensure oil pan surfaces are clean and dry. Remove residual sealant from oil pan, if necessary, with hand drill and plastic brush instead of a flat scrapper. see scheme 80 Install gasket.
2. Install 2 bolts diagonal to each other (to hold up pan). Install the rest of the bolts and hand tighten.
3. Starting at center and moving outward, tighten lower oil pan to upper oil pan bolts to 10 N.m (89 INCH lbs.). Tighten oil pan drain plug 30 N.m (22 ft. lbs.). Wait 30 minutes before filling with engine oil. Tighten all bolts to specification. See «TORQUE SPECIFICATIONS»(ref-147486-S30794586192002091600000).
4. To complete installation, reverse removal procedure. Fill and bleed cooling system. See «COOLING SYSTEM BLEEDING»(ref-147486-S31613995762002091600000).

Scheme 66

1. Disconnect negative battery cable. Remove oil dipstick. Unbolt oil dipstick tube at front of cylinder head. Remove oil dipstick tube.
2. Remove engine noise insulator (undercover). see scheme 8 Drain engine oil.
3. Move lock carrier into service position. See «LOCK CARRIER»(ref-147486-S40535456302002091600000). This will allow servicing of front engine components and facilitate removal of oil pan.
4. Open coolant expansion tank cap, drain cooling system at radiator. Open the coolant pump bearing housing drain plug. Located at bottom of block near transmission bell housing, drivers side of vehicle. see scheme 22- see scheme 23. If vehicle is equipped with automatic transmission, unbolt oil cooler pipe (line) bracket from right side oil pan.
5. Position Engine Support (10-222A) with (10-222A/3) engine support adapter, or equivalent, on bolted flanges of fenders. Connect support bracket to front and rear engine lifting eyes. Lift up engine as far as possible. DO NOT use excessive force to raise engine.
6. Cut tie wraps and open bracket supporting starter wiring. see scheme 78 Disconnect electrical connection at starter.
7. Unbolt torque arm at front of engine.
8. Unbolt coolant pipe from oil pan at front of engine. Disconnect oil pressure switch at left side of oil pan. Disconnect 2 oil cooler lines at oil cooler below oil filter.
9. Remove lift and right nuts from lower engine mount. see scheme 40 Mark positions threaded assembly and guide sleeves of left and right engine mount locating sleeves from bottom. see scheme 40 Remove left and right engine mount nuts. Using hoist, lift engine up as far as possible.
10. First remove front bolts (2) and (3) from left and right-sides of subframe. Then remove bolts (1). see scheme 79 Swing stabilizer down. Remove starter.
11. With bolts still installed, using a screw jack, lower front subframe, (DO NOT let weight of subframe rest solely on bolt heads). This should allow access to oil pan bolt.
12. Remove oil pan (lower part) and oil pan (upper parts). Remove both brackets for oil supply pipe. see scheme 109 Pull longer oil supply pipe out of oil pan upper part.
13. Remove oil pump mounting bolts (remove the bolts but DO NOT remove the oil pump). Remove shorter oil supply pipe. see scheme 111
14. Remove bolts from between oil pan (upper part) and transmission. Unbolt oil pan (upper part) from engine.
15. Remove appropriate lower and/or upper parts of oil pan from engine as needed for repair.