Audi Workshop Service and Repair Manuals

Removing and installing sump Special tools and workshop equipment required

t  Allen key, long reach -T10058- t  Electric drill with plastic brush attachment t  Safety goggles t  Silicone sealant → Parts catalogue Removing –  Detach engine cover panel with air cleaner → Rep. gr.24. –  Remove noise insulation → Rep. gr.50.

–  Remove noise insulation (right-side) -fasteners 1 ... 3-.

–  Detach air pipe -arrow- from charge air cooler.

–  Unbolt air pipe from turbocharger -arrows-.

–  Unscrew bolts -arrows- and remove air pipe.

–  Detach air pipe -1- from charge air cooler. –  Unplug connector from charge pressure sender -G31- → Rep. gr.24. –  Remove air pipe.

–  Unplug electrical connector -1- at oil level and oil temperature sender -G266-. –  Unbolt oil return line from turbocharger -arrows-. –  Drain off engine oil.

–  Unscrew sump/gearbox bolts -arrows-. –  Unscrew bolts -1 ... 20- in diagonal sequence. –  Take off sump: if necessary loosen it by striking lightly with a rubber hammer. Installing l  Tightening torques → Chapter t  Silicone sealant: → Parts catalogue   Note t  Note expiry date of silicone sealant. t  The sump must be installed within 5 minutes after applying the silicone sealant. –  Remove sealant residue from cylinder block using a flat scraper.   WARNING Wear safety goggles.

–  Remove remaining sealant from sump (with rotating plastic brush or similar). –  Clean sealing surfaces; they must be free of oil and grease.

–  Cut off nozzle of tube at front marking (Ø of nozzle approx. 3 mm).

–  Apply the bead of silicone sealant onto the clean sealing surface of the sump, as illustrated. t  Thickness of sealant bead: 2 ... 3 mm   Note t  The sump must be installed within 5 minutes after applying the silicone sealant. t  The bead of sealant must not be thicker than specified, otherwise excess sealant can enter the sump and obstruct the strainer in the oil intake pipe. t  Take particular care when applying sealant bead in area of rear sealing flange -arrows- as shown in this figure. –  Fit sump immediately and tighten bolts as follows; tightening sequence → Fig.   Note t  When installing sump with engine removed from vehicle, ensure that sump is positioned flush with cylinder block at flywheel end. t  After fitting sump assembly, the sealant must dry for approx. 30 minutes. Then (and only then) fill the engine with engine oil. –  Fill up with engine oil and check oil level. The remaining installation steps are carried out in the reverse sequence. Note the following points: –  Install air pipes with plug-in connectors → Chapter.