Removal & Installation (chain Driven) Audi A6 C5

Note. Oil pump is not serviceable.

Note. For help in identifying chain driven oil pump components and component locations, refer to illustrations. see scheme 108

Scheme 92

Scheme 93

Scheme 94

Scheme 95

Scheme 96

1. Drain engine coolant. See «DRAINING COOLING SYSTEM»(ref-147486-S06159856372002091600000).
2. Drain engine oil. Unbolt hardware from oil pan. Remove oil pan. See «OIL PAN»(ref-147486-S10326072892002091600000) under REMOVAL & INSTALLATION.
3. Once access is gained, check chain tensioner condition. See «CHAIN TENSIONER (OIL PUMP)»(ref-147486-S33928034582002091600000).
4. Remove both brackets for oil supply pipe. see scheme 109
5. Pull longer oil supply pipe out of oil pan upper part. Unbolt chain sprocket from oil pump and pull down off oil pump drive shaft. see scheme 110 Remove oil pump mounting bolts together with shorter oil supply pipe. see scheme 111
6. To install, reverse removal procedure. Insert shorter supply pipe with NEW O-ring into oil pump, then install oil pump. Ensure chain sprocket is properly install on shaft.
7. Ensure gasket surfaces are clean of grease and oil. Use silicone gasket material on oil pan. Tighten components to specification. See «TORQUE SPECIFICATIONS»(ref-147486-S30794586192002091600000).
8. Refill and bleed air from cooling system. See «COOLING SYSTEM BLEEDING»(ref-147486-S31613995762002091600000) under REMOVAL & INSTALLATION.