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.

4G0825207F - : Floor Pan Splash Shield for Audi Image

Floor Pan Splash Shield

Shield used to direct water/debris away From the floor pan. Center. Floor Pan Splash. Lining. Side cover. Underbody. Fits A6, S6
$540.00 CAD
View Details
4F0121055F - : Lower Hose for Audi Image

Lower Hose

A6. 3.2L. 3.0L. Engine Cooling Radiator.
$180.00 CAD
View Details
4K0121661 - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

Water feed tube. Alternator. Intake pipe.
$323.00 CAD
View Details
8W6807110 - : Radiator Support Air Deflector for Audi Image

Radiator Support Air Deflector

Air deflector. Spoiler. 2020-25, cover & components, A5, bumper code: 2k1, 2k5. 2020-24 A5, S5 bumper cover & trim. inner. 2020-25,...
$684.00 CAD
View Details
4M8121283BB - : Radiator Support Baffle for Audi Image

Radiator Support Baffle

4.0L, SQ8.
$84.00 CAD
View Details
4M0807158D - : Air Duct for Audi Image

Air Duct

2017-19.
$121.00 CAD
View Details
7L121053C - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

Alternator.
$40.84 CAD
View Details
80A819334AG - : HVAC Heater Hose for Audi Image

HVAC Heater Hose

Connector to Pipe. Toward Turbocharger.
$193.00 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!