Genuine BMW X3 Crankshaft Seal

BMW X3 Crankshaft Seal Parts Questions & Answers

• Shaft Seal
  11-11-7-547-842
  Q: How to replace the crankshaft rear main seal?

  A: To replace the crankshaft rear main seal, remove the transmission, flywheel, and for manual cars, the clutch. Drain the engine oil and remove the seal carrier bolts. Remove the seal carrier, check the Oil Pan gasket for damage. Install the new seal carrier, replace the main seal carrier gasket, and apply sealant to the oil pan gasket sealing surfaces. Install the seal carrier bolts and torque them to specifications.
• Shaft Seal
  11-11-7-547-842
  Q: How to remove and install the crankshaft rear main seal?

  A: Crankshaft rear main seal replacement involves removing the transmission and flywheel. Before starting the procedure, it is important to read the entire process. For manual transmission vehicles, the clutch pressure plate and disc need to be removed. The engine oil should be drained. The seal has six removal openings, and if necessary, the rubber coating should be scraped off to expose them. A BMW seal puller is used to remove the seal by inserting sheet metal screws into the removal openings and slowly screwing in the seal remover spindle. Before installing the new seal, the seal seating surface should be cleaned and the crankcase seams degreased. A light coat of engine oil should be applied to the seal lip running surface on the crankshaft flange. The crankshaft seal and installation sleeve are placed against the crankcase opening, ensuring not to kink or damage the sealing lip. The plastic guide sleeve is supplied with the seal and both grooves on the seal should be coated with Loctite® 171000 primer. The seal should be pressed in as far as possible by hand and then the installation sleeve is removed. BMW special tools 11 9 182 and 11 9 184 are used to fit the crankshaft flange, and a spacer ring is placed over the seal. BMW special tools 11 9 181 and 11 9 183 are used to press in the seal. The special tools and spacer ring are then removed. The seal grooves and crankcase seams should be coated with Loctite® 171000 primer using a brush. An injector kit is used to fill the seal grooves and crankshaft seams with Loctite® 128357 sealant. The sealed areas should be coated with Loctite® 171000 primer to bind the sealant. The remainder of the assembly is the reverse of the disassembly, including installing the flywheel, clutch or torque converter, and transmission. The engine should be filled with oil and then run to check for leaks.
• Shaft Seal
  11-11-7-584-398
  Q: How to replace the front crankshaft oil seal in a BMW X3?

  A: With the engine fully cooled off, remove the electric cooling fan and cowl, engine accessory belts and crankshaft vibration damper and pulley. Be sure to mark belts with direction of rotation. Install cap (BMW special tool 11 2 383) on the end of the crankshaft. Install seal guide (BMW special tool 11 2 385) over the end of the crankshaft. Be sure to align the groove with the keyway on the crankshaft (arrow). Install oil seal puller (BMW special tool 11 2 380) and screw in the body of the puller until it contacts the seal. Tighten the bolt in the center of the tool to draw the seal out of the cover. Coat the new seal with oil and position it in the timing chain cover. Use BMW special tool 11 3 280 and the crankshaft center bolt to draw the seal in flush with the timing case cover. Reinstall the crankshaft vibration damper and pulley. The remainder of the installation is the reverse of removal, noting the following: Install engine accessory belts. Install the cooling fan.
• Shaft Seal
  11-11-7-587-168
  Q: How to remove and install the front crankshaft oil seal?

  A: When replacing the crankshaft seal, it is important to fill the grooves and crankcase seams with special Loctite sealant to prevent oil leaks. To begin, raise the vehicle and remove the splash shield underneath the engine. Next, remove the engine accessory belt and the vibration damper (front pulley), taking care not to remove the vibration damper hub bolt to avoid valve damage. Use BMW special tool 11 9 221 to push the crankshaft seal inward, loosening it for removal. Then, screw BMW special tool 11 O 371 into the seal and rotate it clockwise to pull out the seal. Clean the crankshaft seal seating surface and degrease the area around the crankcase seam. Lightly oil the sealing surface on the vibration damper hub. Attach BM special tool 119 232 to the hub and place the crankshaft seal and installation sleeve over the tool and crankcase opening. Coat the seal grooves with Loctite 171000 primer and ensure they center on the crankcase seam. Use BMW special tools 11 9 231 and 11 9 233 to press in the seal. Coat the seal grooves and crankcase seams with Loctite 171000 primer and fill them with Loctite 128357 sealant using an injector kit. Finally, coat the sealed areas with Loctite 171000 primer and reinstall the crankshaft vibration damper. The remaining assembly is the reverse of the disassembly process.