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.

7L0815371B - : HVAC Heater Hose for Audi Image

HVAC Heater Hose

Inlet. Front Pipe to Center Pipe. Auxiliary A/C & Heater. For Rear Heater Core. Rear Heater Adapter Pipe to Underbody Pipe and Hose.
$11.75 CAD
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4M0819674N - : HVAC Heater Hose for Audi Image

HVAC Heater Hose

Primary HVAC. Auxiliary Water Pump To Pipe. Toward Radiator Hose Adapter. From 04/08/2019.
$46.55 CAD
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4L121058F - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

Engine Cooling. Regulating Flap. Outlet.
$37.35 CAD
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4G0121081EJ - : Engine Coolant Overflow Hose Bracket for Audi Image

Engine Coolant Overflow Hose Bracket

2016-18, front. 2.0L, 2012-15, from 02/17/2014. Gas, supply, from 12/16/13. 3.0L gas front. Vent tube. Reservoir hose. 3.0L diesel,...
$72.90 CAD
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4E145749M - : Inter-Cooler for Audi Image

Inter-Cooler

A3. 1.4l.
$550.00 CAD
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4G0121081ED - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

Breather tube. 3.0L gas front.
$105.50 CAD
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1EA122101CG - : Upper Hose for Audi Image

Upper Hose

Q4 e-tron. Rwd. With r1234yf refrigerant. To 10/30/2023.
$192.00 CAD
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1EA121251B - : Radiator for Audi Image

Radiator

Awd. Q4 e-tron Sportback. Rwd.
$501.00 CAD
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1K0820808G - : A/C Compressor for Audi Image

A/C Compressor

TT. 2.5l. From 03/18/2013. Incl.A/C Compressor Clutch. To 04/02/2012.
$1,171.00 CAD
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59145736D - : Oil Line for Audi Image

Oil Line

Q7. Return line. 3.0L.
$153.50 CAD
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