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.

6L121492M - : Turbocharger Coolant Line for Audi Image

Turbocharger Coolant Line

2.0L 2018-20. Return line. Turbocharger Cooling. Outlet.
$116.00 CAD
View Details
8W0121212F - : Auxiliary Radiator for Audi Image

Auxiliary Radiator

RS5. Engine Cooling. Location-Wheel Arch. To 05/28/2018. 2.9L, auxiliary, right side, rear.
$995.00 CAD
View Details
6M121486F - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

Water feed tube. 2.9L, main, right side, #5. 2.9L alternator. #1 to 01/15/2024. 3.0L, without plug-in hybrid, alternator. 2.9L,...
$126.00 CAD
View Details
8V0121285 - : Duct for Audi Image

Duct

Convertible,. Engine code dhha.
$46.97 CAD
View Details
83A805594J - : Radiator Support Panel for Audi Image

Radiator Support Panel

Radiator Support Panel. Carrier. Center. Closure. Frame. Front c'member. Mount. Radiator. Fits Q3
$1,410.00 CAD
View Details
79121107AF - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

4.2L, feed, from vin 8t9015001. Pipe to Water Connection. From 10/20/2008.
$99.00 CAD
View Details
8K0121051C - : Radiator Coolant Hose for Audi Image

Radiator Coolant Hose

Adapter to Thermostat Housing. 2.0L, gas. 2013-2016. Primary Radiator. Engine Cooling. Coupe, 2.0L.
$110.00 CAD
View Details
7L8122447G - : Engine Coolant Overflow Hose for Audi Image

Engine Coolant Overflow Hose

Reservoir hose. Diesel, main.
$152.00 CAD
View Details
79145743A - : Oil Return Line for Audi Image

Oil Return Line

4.0 Liter. Line used to transmit oil amongst the turbo, Intercooler and engine. Feed Line. Inlet pipe. Intake pipe. Lower PRESSURE hose....
$205.00 CAD
View Details
8W0121284BS - : Radiator Support Air Duct for Audi Image

Radiator Support Air Duct

2.0L 2020-24 40 tsfi. 2021-25. 2.0L 2020-25 45 tsfi.
$105.00 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!