Parts for your 2016 Subaru Forester-Water pump

2016 Subaru Forester water pump — what it does and when to replace it

Technical references confirm the 2016 Subaru Forester is fitted with a mechanical water pump. The Subaru Factory Service Manual for the 2016 Forester (Cooling System section) details removal/installation of the pump on FB25 2.5i and FA20F 2.0XT engines, and Subaru’s parts catalogues list a complete water pump assembly for these engines. That makes the water pump a relevant, standard component on petrol 2016 Foresters sold across Australia and New Zealand.

In everyday terms, the pump keeps coolant moving through the block, heads, heater core, and radiator, carrying heat away so the engine stays in its happy temperature window. On XT turbo models, it also supports heat management around the turbo hardware. It’s belt-driven on these petrol engines, so if the accessory/serpentine belt is loose, cracked, or contaminated, the pump won’t move coolant properly—cue rising temps under the bonnet.

While Subaru doesn’t specify a fixed pump replacement interval for the 2016 Forester in the owner maintenance schedules, good practice is to inspect it at every service and replace it if there’s any play, noise, or leakage. Telltale signs include a pink or whitish crust around the weep hole or housing, coolant drips under the front of the engine, a growling or chirping noise that changes with revs, or unexplained overheating at idle. If any of that shows up, it’s time.

When replacing the water pump on a 2016 Forester petrol model, it’s smart to:

• Fit an OE or OE‑quality pump with the correct gasket/O‑ring set.
• Renew the accessory belt if it’s aged or noisy.
• Replace the thermostat and radiator cap if they’re original or suspect.
• Refill with genuine Subaru Super Coolant (blue) or an approved equivalent and bleed the system properly (heater on HOT, steady idle, top up as air purges).
• Follow torque specs from the Factory Service Manual and recheck for leaks after a short road test.

Coolant change timing depends on what’s in the car, many AU/NZ 2016 Foresters shipped with Subaru’s long‑life blue coolant, which has an extended service life. Always follow the owner’s manual for intervals and use the right mix. Keeping the cooling system clean, belt tension correct, and leaks addressed early will help the water pump last the distance.

Does the 2016 Forester have a timing belt‑driven water pump?

On the common petrol engines (FB25 2.5i and FA20F 2.0XT), the cams use timing chains and the water pump is driven by the accessory belt, not a timing belt. Diesel variants and markets can differ, so if in doubt, check by VIN with a Subaru parts desk.

When should the 2016 Forester’s water pump be replaced?

There’s no set kilometre interval for the petrol models. Replace it if there are leaks, bearing noise, shaft play, overheating, or contamination. Many owners choose to do the pump proactively when refreshing the belt and coolant on higher‑kilometre cars to avoid downtime.

How much does a water pump replacement cost in AU/NZ?

Expect a typical job to include the pump, gasket, coolant, and often a new belt. Parts can range widely by brand, labour is usually 1.5–3.0 hours. As a rough guide, a workshop job often lands in the mid‑hundreds to around a thousand in AUD/NZD, depending on engine, parts choice, and any extra cooling work found.