Front sealing flange, removing and installing
WARNING: This page is about a different variant/trim than selected.
For PTFE seals:
Special tools and equipment
- 3415 Counterhold
- T10053 Assembly device
- V.A.G 1331 Torque wrench (5 to 50 Nm)
- V.A.G 1332 Torque wrench (40 to 200 Nm)
- Hand drill with plastic brush attachment
- D 176 404 A2 Silicone sealant
- Flat scraper
Fig 2: Identifying Special Tools - Front Sealing Flange, Removing And Installing (For Coil Spring Seals)
For coil spring seals:
- 2080 A Guide sleeve
- 3415 Counterhold
- V.A.G 1331 Torque wrench (5 to 50 Nm)
- V.A.G 1332 Torque wrench (40 to 200 Nm)
- Hand drill with plastic brush attachment
- D 176 404 A2 Silicone sealant
- Flat scraper
Removing
- Remove poly V-belt. Refer to Poly V-belt, removing and installing .
- Remove tensioning element for poly V-belt.
- Remove toothed belt. Refer to Engine codes AEG, AVH, AZG, BEV .
- Remove crankshaft toothed belt sprocket by counterholding sprocket with 3415.
- Drain engine oil.
- Remove oil pan. Refer to Oil pan, removing and installing .
- Unbolt front sealing flange.
- Take off sealing flange. Use light blows with a rubber headed hammer to release flange if necessary.
- Remove sealant residue from cylinder block with a flat scraper.
- Cover oil seal with a clean cloth.
- Remove sealant remains on sealing flange with a rotating plastic brush (wear eye protection).
- Clean sealing surfaces. Surfaces must be free of oil and grease.
Installing
Fig 5: Cutting Off Tube Nozzle At Front Marking & Applying Silicone Sealing Compound To Clean Sealing Surface Of Sealing Flange
- Cut off tube nozzle at front marking (nozzle approx. 3 mm diameter).
- Apply silicone sealing compound, as shown, to clean sealing surface of sealing flange.
Thickness of sealant bead (arrows): 2 to 3 mm
NOTE:
- Before applying sealing bead, cover the oil seal with a clean cloth.
- The sealing compound bead must not be thicker, otherwise excessive sealing compound will enter the oil pan and may block the oil suction pipe strainer.
- Observe the use-by date of the sealant.
- The sealing flange must be installed within 5 minutes of applying the silicone sealing compound.
For PTFE seals
NOTE:
Use guide sleeve T10053/1 to install sealing flange with the oil seal already installed.
For coil spring seals
NOTE:
Use guide sleeve 2080 A to install sealing flange with the oil seal already installed.
Continued for all oil seals
The sealant must be allowed to cure for approx. 30 minutes after installing the oil pan. After this time the engine may be filled with engine oil.
- Install sealing flange immediately and lightly tighten all bolts.
- Tighten sealing flange securing bolts using alternating sequence.
Tightening torque: 15 Nm
- Remove excess sealing compound.
- Install oil pan. Refer to Oil pan, removing and installing .
- Install crankshaft toothed belt pulley sprocket and lock with counterhold 3415.
Tightening torque: 90 Nm plus 1/4 turn (90 ° )
NOTE:
Thread and shoulder must be free of oil and grease.
- Install toothed belt and adjust timing. Refer to Engine codes AEG, AVH, AZG, BEV .
- Install tensioning element for poly V- belt.
- Install poly V-belt. Refer to Poly V-belt, removing and installing .