Volvo AWD Drivetrain Service Kit - Aisin 31256775KT

This kit is designed to change the fluids on the complete drivetrain on your Volvo, which should be done every 30-40k miles.

Services:

• Automatic transmission (TG-81SC) - ATF-0WS (2 drain and fills)
• Angle gear/transfer case - MOL-LM22090 gear oil
• Haldex AWD unit (Generation 5) - Haldex Fluid 31367941
• Rear differential - MOL-LM22090 gear oil

Volvo does not specifically have service intervals for these, instead citing a "lifetime fill". In our experience, modern Volvo drivetrain components begin to degrade in performance and fail between 150k and 200k miles with zero service. Properly serviced drivetrain components can last nearly indefinitely, so it is critical to regularly change these drivetrain oils to avoid shear and breakdown. There is no filter on this generation Haldex unit.

Procedure:

• Automatic Transmission: Typically each drain will remove around 3l. 4l of fluid should be added and drained meaning it will briefly be slightly overfull during fluid mixing. This kit comes with enough fluid to do 2 drain and fills. For a more complete service, add an additional 4l. Final fluid level should be set while the transmission temperature is warm (50-60C) with engine running on a level surface. An electronic TCM reset is highly recommended after the oil change, especially if it has been awhile since the last service. For DIY video [CLICK HERE]
• Transfer Case/Bevel Gear/Angle Gear: Locate and remove the plug on the transfer case, located near the lower engine mount and turbo pressure pipe elbow. Use the syringe to evacuate out as much as possible, and fill the same way. Replace the plug with the new seal when continuous flow out of the hole changes into single drops.
• Torque: Oil filler plug, bevel gear, 35 Nm
• Rear differential: Locate and remove the plug on the very back of the differential case. Use the syringe to evacuate out as much as possible, and fill the same way. Replace the plug with the new seal when continuous flow out of the hole changes into single drops.
• Torque: Oil plug, final drive, 35 Nm
• Clean the syringe of gear oil.
• Haldex/AOC: Remove the oil pump and clean the oil pickup screen, reinstall with new seals and bolts. Locate the cover on the side of the Haldex and remove the plastic drain plug. Use the syringe to evacuate out as much as possible, and fill the same way. Replace the plug when continuous flow out of the hole changes into single drops. Go for a test drive. Top off fluid level and replace plug when continuous flow out of the hold changes into single drops. For DIY video [CLICK HERE]

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