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Audi Workshop Service and Repair Manuals

Removing and installing valve for oil pressure controlN428 > < Removing and installing oil pump
Removing and installing sump (top section)
   
Removing and installing sump (top section)
Special tools and workshop equipment required
t  Assembly tool -T10118-
t  Brake pad wear tester -VW 136-
t  Torque wrench -V.A.G 1331-
t  Electric drill with plastic brush
t  Safety goggles
t  Silicone sealant → Electronic parts catalogue
Removing
–  Remove gearbox → Rep. gr.34.
–  Remove sump (bottom section) → Chapter.
–  Remove rear sealing flange → Chapter.
–  Remove oil pump → Chapter.
  W17-10010
–  Unplug electrical connector -1-.
  A17-10421
–  Remove bolts -arrows-.
  DANGER!
Injury risk! The chain tensioner spring for oil pump drive jumps from sump (top section) to timing chain cover (bottom) when detaching sump (top section). Do not reach between sump (top section) and timing chain cover (bottom) when removing sump (top section).
  N17-10200
–  Remove bolts -1 to 13- and detach sump (top section).
  Caution
Lever off sump (top section) at gearbox end first. Take care timing chain cover is not bent when levering off.
Installing
l  Tightening torque → Chapter „Sump, oil pump - exploded view“
t  Silicone sealant → Electronic parts catalogue
  Note
t  Note expiry date of silicone sealant.
t  The sump (top section) must be installed within 5 minutes after applying the silicone sealant.
t  Renew the bolts tightened with specified tightening angle.
t  Renew seals, gaskets and self-locking nuts.
  A17-10415
–  Use assembly tool -T10118- to pull chain tensioner spring for oil pump drive in direction of guide rail -arrow-.
–  Secure spring by inserting brake pad wear tester -VW 136- into opening in guide rail as shown in illustration.
–  Remove sealant residue from cylinder block using a flat scraper.
  WARNING
Protect eyes against injuries.
Wear safety goggles.
  N17-10163
–  Remove sealant residue on sump (top section) using rotating plastic brush or similar.
  Note
Check if timing chain cover is deformed. For this purpose, first fit sump (top section) without sealant and determine gap between cover and sump (top section). If the cover is deformed and cannot be straightened, renew cover after installing sump (top section).
–  Clean sealing surfaces; they must be free of oil and grease.
–  Check oil passages in sump (top section) and crankcase for contamination.
  A13-0590
–  Cut off nozzle of tube at front marking (Ø of nozzle approx. 3 mm).
  A17-0081
–  Apply silicone sealant onto clean sealing surface of sump (top section) as illustrated -arrows-.
t  Thickness of sealant bead: 2 ... 3 mm
  Note
t  The sump (top section) 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.
l  Sump (top section) and crankcase must be flush at gearbox end.
–  Immediately fit sump (top section) and tighten bolts, tightening torque → Fig..
  A17-10275
–  Fit bolts -arrows-. Tightening torque → Item
  N17-10200
–  Pull brake pad wear tester -VW 136- out of guide rail -arrow-. The spring now returns to installation position.
–  Install rear sealing flange → Chapter.
–  Install oil pump → Chapter.
–  Renew baffle plate.
Further assembly is basically carried out in reverse order of dismantling.
–  Fill with engine oil and check oil level; A4 → Booklet812, A5 → Booklet811.
  N17-10201

Removing and installing valve for oil pressure controlN428 > < Removing and installing oil pump