Parts for your 2018 Volvo Xc60-Coolant

2018 Volvo XC60 coolant – what it does and how to look after it

The 2018 Volvo XC60 does use coolant. Volvo’s 2018 XC60 Owner’s Manual and VIDA (Volvo’s official workshop information) specify an ethylene‑glycol, long‑life coolant for the engine’s closed cooling system. On T8 Twin Engine plug‑in hybrids, VIDA details additional liquid cooling circuits for the high‑voltage battery and power electronics, making correct coolant specification even more critical.

In this XC60, coolant isn’t just about stopping the engine from boiling over. It carries heat away from the engine, protects against freezing, resists corrosion inside the alloy block and radiator, and helps stabilise temperatures so the turbo, gaskets and sensors all live a calmer life. Volvo-approved coolant uses organic acid technology additives that last far longer than old‑school green stuff, which is why the factory documentation refers to extended service life.

For day‑to‑day ownership, the best move is simple: look, test, then top up only if needed. Always check level on a cold engine at the translucent expansion tank. If it’s low, use a premix of the correct Volvo‑approved coolant and deionised water (typically 50/50 for year‑round protection). Don’t chase colour—follow the spec on the bottle or the service data, and avoid mixing different chemistries.

Workshops across Australia and New Zealand commonly inspect coolant at each service (12 months/15,000 km). VIDA notes long‑life coolant with no frequent replacement, but many technicians recommend a full change around the 8–10 year mark or sooner if test strips/refractometer readings show weak protection, pH drift or contamination. If drained for major work, a vacuum fill and proper bleeding are a must to prevent air pockets.

Hybrid T8 owners should note there are extra cooling loops for the battery and electronics. These systems can require specific procedures and safety steps, leave diagnosis and refills to trained techs with the right equipment.

Handy signs that attention’s due include the sweet smell of coolant, a low‑coolant message, rising engine temps under load, or visible residue around hose clamps. Never open the cap hot—wait until the system’s cool and depressurised.

• Inspect level and hoses every service, test strength with a refractometer.
• Use only Volvo‑approved OAT coolant and deionised water.
• Consider a complete refresh around 8–10 years, or if tests/repairs warrant it.

What type of coolant does a 2018 Volvo XC60 use?

Volvo specifies a long‑life, ethylene‑glycol coolant using organic acid technology and free from silicates and phosphates. The easiest route is genuine Volvo coolant that meets the factory spec listed in the Owner’s Manual/VIDA. Avoid mixing brands or chemistries, if uncertain, drain and refill with the correct premix.

How often should the coolant be changed?

The factory documentation describes extended‑life coolant with no frequent scheduled changes. In local practice, workshops inspect at each service and often recommend a full change at about 8–10 years or if testing shows weak protection or contamination, or after major cooling‑system work.

Can I top up with plain water in a pinch?

In an emergency, a small top‑up with clean deionised water can get the XC60 home, but it will dilute corrosion inhibitors and freeze/boil protection. Restore the correct 50/50 mix with the specified coolant as soon as possible, and have the system checked for leaks that caused the low level.