What Radiators Do

They're heatsinks. In other words, they help keep the engine in your Audi from overheating.

How a Radiator Works

In short, it uses coolant (antifreeze) to absorb the excess heat generated as your engine runs. Plus, it helps scatter the heat. The process is simple.

First, antifreeze flows through radiator hoses – inlet and outlet hoses, to be exact. The fluid gets pressurized by a radiator cap along the way. As it travels, it captures as much heat as it can. Then, flat, fin-style aluminum tubes expel the heat, with help from a fan to dispel it.

Some radiators have extra fins, called turbulators. They dissipate heat even better. Others have side-mounted tanks, called transmission coolers. They transfer the heat of transmission operation to the coolant.

Signs of Radiator Problems

Unfortunately, a radiator can go bad and even fail, but luckily, there are symptoms that'll tell you that's happening. They include:

  • Strange engine noises
  • A temperature gauge that reads unusually high
  • The sweet, syrupy odor of ethylene glycol (indicating a coolant leak)
  • Dirty or sludgy antifreeze
  • Coolant leaks
  • Heater and¬†air conditioning¬†malfunctions

To figure out what could be causing these problems, perform a thorough inspection.

Repair Your Audi Cooling System with Peace of Mind | Use a Genuine OEM Radiator

Whether you're looking to order a new radiator or just a few replacement cooling system parts, you've come to the right auto parts store. Our catalog has a vast selection, and everything's genuine, designed by Audi to work with the car or SUV model you drive, guaranteed. You can even order online. Buy now, and we'll ship fast, with delivery directly to your door.

4M0145804BM - : Inter-Cooler for Audi Image

Inter-Cooler

SQ8. Right.
$636.00 CAD
View Details
8V5807550 - : Radiator Support Access Cover for Audi Image

Radiator Support Access Cover

With S3, with auto brake. Without s-line pkg.
$300.00 CAD
View Details
4KE121286J - : Radiator Support Baffle for Audi Image

Radiator Support Baffle

Center duct.
$132.00 CAD
View Details
4M0807157E9B9 - : Air Duct for Audi Image

Air Duct

2020-24 Q7 bumper cover & trim.
$121.00 CAD
View Details
8W0804647 - : Floor Pan Splash Shield Bracket for Audi Image

Floor Pan Splash Shield Bracket

2017-25. Convertible,. Hatchback. Coupe.
$39.54 CAD
View Details
5N0122447AB - : Engine Coolant Overflow Hose for Audi Image

Engine Coolant Overflow Hose

Rear. Connector hose.
$101.00 CAD
View Details
4B3121321 - : Cap for Audi Image

Cap

Location-Reservoir. Rs 5. Main. Convertible.
$104.00 CAD
View Details
8W1121405N - : Engine Coolant Reservoir for Audi Image

Engine Coolant Reservoir

S5. S4. RS5. 2.9L main. Convertible, 3.0L, main.
$282.00 CAD
View Details
8K0121212B - : Auxiliary Radiator for Audi Image

Auxiliary Radiator

Supercharger Cooling. Location-Wheel Arch. A7. Left radiator. A8. 3.0L, auxiliary. Without RS7, auxiliary. 3.0L, cooler & components,...
$575.00 CAD
View Details
6H121057BA - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

Auxiliary Water Pump. Assembly. Incl.Inlet & Outlet Hoses. 2.0L, auxiliary, 2012-17, to 07/20/2014. 2013-2016. 2.0L, auxiliary, 2013-17....
$152.00 CAD
View Details

No results found. Here are some helpful search tips:

  • Search by a part name. Example: water pump.
  • Be less specific. Example: brake instead of ceramic brake.
  • Remove information such as make, year or model.
  • Can't find the part you are looking for? Contact us and we'll find it for you!