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Autopapyrus · Hyundai Tucson 2.0 (2008)
https://autopapyrus.com/guides/hyundai/tucson/coolant-replacement/
Compiled automatically from service literature and owner experience. Specs are for the typical configuration — check them against your exact car before you start.

Hyundai Tucson 2.0 (2008): Coolant Replacement

On the Tucson JM, replace the coolant every 45,000-60,000 km or every 3 years. A quirk of this model is that there is no drain plug on the engine block, so a full replacement takes several drain-and-fill cycles, or a machine-assisted exchange at a repair shop. A partial replacement through the radiator can be done at home.

Difficulty: Medium Time: 1.5-2 hours Steps: 9 Tools: funnel, 8-10 L (8.5-10.5 qt) drain container, wrench or screwdriver for the drain plug, rags

Parts

2
  • 🔩 G12+ or G11 antifreeze (premixed, or concentrate mixed 1:1 with distilled water). System capacity is 7.8 L (8.2 qt)
  • 🔩 you need 8 L (8.5 qt) for the replacement
There's a full repair manual for this car Every system, wiring diagrams and torque specs — not just this job. Haynes AutoFix (online) and 2 more. See manuals →

Step by step

9 steps
  1. Let the engine cool for at least 2 hours to avoid burns and reduce pressure in the system.
  2. Place the drain container under the radiator and remove the engine skid plate (if installed).
  3. Find the radiator drain plug, a white or black wing-type petcock at the bottom of the radiator on the right-bumper side. Turn it counterclockwise to open it.
  4. Open the radiator cap (not the expansion tank cap) to let air in so the coolant drains faster. About 2.5-3 L (2.6-3.2 qt) will drain out.
  5. Disconnect the thin hose from the expansion tank and lower it into the drain container to drain the remainder.
  6. Close the radiator drain plug and pour new antifreeze in through the radiator filler neck (not the expansion tank) up to the top edge. Use a funnel.
  7. Start the engine, set the heater to maximum, and warm the engine to its operating temperature of 80-90°C (2-3 minutes). Squeeze the upper radiator hose by hand to push out air pockets.
  8. Shut off the engine and let it cool for 20-30 minutes. Repeat the drain-and-fill 1-2 more times to better flush the old coolant out of the engine block and heater core.
  9. After the final fill, warm up the engine and drive 10-15 km, then check the level in the expansion tank (between MIN and MAX with the engine cold). Top off if needed.

Common mistakes and warnings

  • If you need a full replacement with flushing (heavy contamination, or switching to a different type of antifreeze), use a radiator flush product, then do 5-6 drain-and-fill cycles with distilled water, warming the engine to 80°C between cycles. For the fastest and most complete replacement, go to a repair shop with a coolant exchange machine, which removes all the fluid from the block and heater core in one pass.
How it works · 3D How the Engine Cooling System Works How the part you're working on actually works — in plain English, on a 3D model. Open in 3D →