• Engine coolant is used for circulating heat in order to heat and cool the transaxle oil.
• Prevents over heating of the transaxle oil while the vehicle is moving.

Oil CoolerHyundai Tucson (NX4) 2022-2026 Service Manual: Drive Belt Tensioner
- Removal and Installation
• Be careful not to damage the parts located under the vehicle
(floor under cover, fuel filter, fuel tank and canister) when raising
the vehicle using the lift.(Refer to General Information - "Lift and
Support Points")
Drive Belt Tensioner
...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Engine Compartment
Smartstream G2.5 GDI
1 Engine coolant reservoir
2 Brake fluid reservoir
3 Air cleaner
4 Engine oil dipstick
5 Engine oil filler cap
6 Windshield washer fluid reservoir
7 Fuse box
8 Battery ...