If your engine is overheating, the radiator is probably the culprit. Before you book a shop, you’ll want to know how much the fix will actually set you back. The price can swing a lot depending on the car, the part you choose, and where you get the work done. Below we break down the biggest cost drivers and give you easy ways to keep the bill low.
First, the part itself. An OEM (original equipment manufacturer) radiator is the same one that rolled off the factory line, and it usually costs more than an aftermarket version. Expect a price range of £80 – £250 for most passenger cars. Luxury models or high‑performance Italian cars can push the part price over £500.
Next, labor. Replacing a radiator isn’t a quick swap; it involves draining coolant, removing hoses, sometimes taking off the fan or the belt tensioner, and then refilling the system. Most workshops charge between £100 – £200 for labor, but rates climb in big cities or at dealer service bays.
Other hidden costs include coolant, hose clamps, and a pressure test to make sure there are no leaks. Those extras can add another £30 – £70 to the final total.
For a typical family sedan (think Ford Focus or Vauxhall Astra), a full radiator swap usually lands you in the £250 – £400 range all‑in. Small hatchbacks are on the lower end; a VW Polo or similar often falls under £300.
Medium‑size cars like a BMW 3‑Series or Audi A4 tend to sit between £350 – £500 because the parts are pricier and the engine bays are tighter, which means more labor time.
High‑performance or exotic models—like a Ferrari or a Lamborghini—can easily exceed £1,000 just for the part, with labor pushing the total above £1,500. Even a well‑known Italian brand such as Alfa Romeo or Maserati will cost more than a standard Japanese sedan.
Diesel engines sometimes need a larger radiator or an extra coolant pump, which adds £50 – £100.
One quick way to keep the cost down is to compare aftermarket options. Many reputable brands make radiators that meet or exceed OEM specs for 30‑40% less money. Just double‑check the warranty and fitment before you buy.
Another tip: if you’re comfortable with tools, you can do the swap yourself. All you need is a basic socket set, a drain pan, and a fresh coolant mix. DIY can shave off the labor bill entirely, leaving you with only the parts and fluid cost—often under £150 total for a simple car.
Finally, don’t ignore the value of a proper pressure test after the job. A cheap fix that leaks later will cost you more in the long run. Ask the shop to run a test and include the cost in the quote.
Bottom line: expect anywhere from £250 for a basic hatchback to over £1,500 for a high‑end sports car. Know what type of radiator you need, shop around for parts, and consider DIY if you’re handy. With a little research, you can avoid surprise bills and keep your engine cool without emptying your wallet.
