Automatic Transmission Rebuild,
Ask For The Latest Upgrades.

BMW Transmission

BMW Transmission


Transmission Rebuild

Rebuild is also known by terms such as reconditioned, overhauled or refurbished, but all of these terms allude to a transmission rebuild. The automatic transmission is a very complicated mechanical component in today's automobiles. With more computer technology in automobiles, the transmission has become more complex than ever before.

Transmission Rebuilding is not simple and requires skilled technicians to assemble and test them, so they are reliable. Any parts that are found to be damaged or worn are removed and replaced before reassembling the transmission to factory specifications. Automatic Transmissions consists of many different parts, including gears, hydraulics, computer sensors, controls, clutches, gaskets, seals and mechanism all working together in harmony, which goes virtually unnoticed until there is a problem. When you enter into a conversation a transmission repair facility you will hear the terms "hard parts" and "soft parts." The metal parts are known as "hard parts." The gaskets, bands, clutches and seals, are known as "soft parts."

Torque Converter

Torque Converter

Automatic transmission rebuilding includes a torque converter, replacing or reconditioning all defective parts, electrical components and reassembling the unit to factory specifications and testing the unit to ensure it is free of leaks and functional problems. To do this you have to disassemble all of the transmission's components, figure out exactly which parts are causing the trouble, repair or replace the worn or defective parts, and put everything back together again to factory specifications and clearances.

Automatic Transmission Rebuilding Process:

  • Transmission technical service bulletins are reviewed
  • All components are checked for damage or distortion
  • Pumps valve bodies and mating surfaces are flat sanded to ensure proper fit
  • Pump gear clearances are checked
  • Planetary gear pinion wear and end play clearances are checked
  • Planetary assemblies are soaked in ATF prior to assembly
  • Clutch and friction material are replaced and soaked in ATF prior to assembly
  • Steel clutch plates are replaced if burned or worn
  • Band contact areas are checked for wear and flatness
  • Rotating oil control sealing rings, gaskets and rubber seals are replaced
  • Rotating oil control sealing rings and rubber seals are air checked for proper fit
  • Major support bushings and bushing that control lube oil are replaced
  • Bushings and thrust washers are pre-lubricated prior to assembly
  • Pump stators & gears are pre-lubed prior to assembly
  • Torque converters are replaced and filled prior to installation
  • Transmission/transaxle factory specifications are reviewed & followed
  • Clutch packs & bands are replaced & clearances are set to factory specifications
  • Unit end play clearance set to factory specifications
  • Pump and valve body components torque set to factory specifications
  • Solenoids are replaced

Automatic Transmission Rebuilding Key Benefits

  • Lower cost than exchange units.
  • Increase trade-in or retail value.
  • Extended use of vehicle.
  • Warranty coverage.