6-Speed Automatic Transmission Assembly - Front

A quick look at your own vehicle makes sure the right transmission shows up:

• Confirm the 8th digit of the VIN is 'A' (designating the 2.0L Turbo engine).
• Physically check under the vehicle to confirm it is FWD (no rear driveshaft or rear differential).
• Verify the engine cover says 'Turbo' or 'GDI-T'.
• Locate the barcode sticker on top of the transmission case and check for OEM part numbers 45000-3BBW0 or 00268-3BBW0.

What the install really takes — plan and budget with confidence:

Special tools this job needs:

• Engine support bar / hoist
• Transmission jack
• Subframe/cradle jack or heavy-duty jack stands
• Axle seal installation tool (e.g., 09453-3L240)
• OBD-II scan tool with Hyundai/Kia OEM-level diagnostic capabilities (GDS)

Budget for these consumables at install:

• Hyundai Genuine ATF SP-IV (7.8 Liters / 8.2 Quarts total capacity; 4.5 Liters for service fill)
• Front pump / torque converter input shaft seal (OEM Part # 46131-3B600)
• Left and right axle seals
• Transmission cooler flush solvent
• Plastic valve body cover gasket (if cover is removed)

What your vehicle’s computers will need after the swap:

What’s involved: TCM Adaptive Relearn (Reset Adaptive Values)

TCM adaptive values must be reset using a Hyundai-specific GDS or equivalent professional-grade scan tool, followed by a specific relearn drive cycle. Disconnecting the battery will not clear the adaptive memory.

Pro tips for a smooth first start-up — hand them to whoever does the install:

• Torque Converter Seating: Ensure the torque converter is fully seated into the oil pump gears before bolting to the engine. Failure to do so will crack the internal oil pump, destroying the transmission instantly.
• Subframe Removal: Requires dropping the front subframe while supporting the engine from above.
• Fluid Level Check Procedure: No dipstick. Fluid level must be checked via the overflow plug on the front plastic cover at a specific fluid temperature of 50°C to 60°C (122°F to 140°F) with the engine running and vehicle level.
• Cooler Line Flush: Mandatory to flush the cooler lines and radiator to prevent debris from the failed unit from contaminating the replacement.
• Adaptive Relearn: Skipping the TCM adaptive value reset and relearn drive cycle will cause poor shift quality and potential clutch damage.

Easy to get right once you know them:

• Ordering for AWD: Buying this FWD unit for an AWD vehicle. The AWD version has a different case casting to accommodate the transfer case.
• Using the Wrong Fluid: Using generic multi-vehicle ATF instead of genuine ATF SP-IV, leading to immediate shift shudder and clutch failure.
• Skipping the Cooler Flush: Reusing the old cooler and lines without flushing, which recirculates debris into the replacement unit.
• Not Resetting Adaptives: Driving the vehicle on old adaptive values, causing harsh shift shock.
• Breaking the Pump: Forcing the transmission to mate with the engine when the torque converter is not fully seated.

Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer: