Parts for your 2016 Ford Everest-Radiator cap

2016 Ford Everest radiator cap — what’s actually fitted?

Based on Ford’s technical literature, a traditional radiator cap on the radiator neck is not used on the 2016 Ford Everest (UA). The model runs a sealed, pressurised cooling system with a remote coolant reservoir (often called a degas bottle) that carries the pressure cap. This is set out in the Ford Everest Owner’s Manual (MY2016) under Cooling System/Checking and Adding Coolant, which shows the cap on the reservoir and instructs owners to fill only via that tank. The Ford Workshop Manual for Everest/Ranger (UA/PX) section 303-03 (Engine Cooling) also identifies the degas bottle and its pressure relief cap as the system’s fill and pressure-control point. Ford parts catalogues list the item as a “Coolant Reservoir Cap,” not a “radiator cap.”

Why no radiator cap on the radiator itself? The Everest’s design places the reservoir as the high point of the cooling system so air can purge continuously into the tank. The pressure cap on the reservoir then controls system pressure and overflow/return as temperatures change. This setup improves packaging under the bonnet, reduces the chance of scalding when hot, and makes coolant top-ups simpler—there’s just one cap to deal with, and it’s not on the radiator.

If someone’s searching for a 2016 Ford Everest “radiator cap,” what they actually need is the coolant reservoir pressure cap. During regular servicing, it’s smart to have that cap inspected because a weak spring or perished seal can cause slow coolant loss, overheating, or collapsed hoses after cool-down.

• Only open the cap when the engine is stone cold. A hot system can release boiling coolant under pressure.
• Check the rubber seal, the plastic body, and the spring-loaded valve. Replace if the seal is cracked, the valve is sticky, or there’s crusty coolant residue.
• Use a quality cap that matches the specified pressure for the Everest’s engine. The rating is critical to maintain the correct boiling point and hose integrity.
• If chasing random coolant smells, hissing after shut-down, or small coolant losses with no obvious leaks, have a workshop pressure-test the cap and system.

Keeping the cooling system healthy is cheap insurance in Aussie and Kiwi conditions. A sound reservoir cap helps hold the right pressure, reduces boil-over on steep climbs or tows, and keeps those long kilometres drama-free.

Popular questions about a 2016 Ford Everest radiator cap

Does a 2016 Ford Everest actually have a radiator cap?
No. The radiator itself doesn’t have a cap. The pressure cap is on the coolant reservoir (degas bottle), which is where topping up and pressure control happen.

What cap should be used on a 2016 Everest?
Use a coolant reservoir pressure cap that meets Ford’s specified pressure rating for the UA Everest. Check the owner’s manual, the label on the reservoir, or a Ford parts reference using the VIN to ensure the correct rating.

How often should the cap be replaced?
There isn’t a fixed time or kilometre interval. Have it inspected at routine services and replace it if the seal is worn, the valve is faulty, or if there are symptoms like recurring coolant loss, overheating, or collapsed hoses after cool-down.