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.

1K0121101R - : Radiator Coolant Hose for Audi Image

Radiator Coolant Hose

3.2L. Adapter to Adapter.
$81.10 CAD
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1K0122157HG - : HVAC Heater Hose for Audi Image

HVAC Heater Hose

Inlet.
$114.00 CAD
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1K0145803CG - : Inter-Cooler for Audi Image

Inter-Cooler

2011-15 with awd, TT. TT. 2.0l. Without tts model.
$783.00 CAD
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1K0121087H - : Cooling System Bypass Line Adapter for Audi Image

Cooling System Bypass Line Adapter

Distributor. 2011-15 with awd, tts, feed. 2.0L 2009-2010 with awd, tts. Connector tube. 2006-08. 2.0L 2008 all 2009 without awd supply.
$24.00 CAD
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1EA122101CH - : Upper Hose for Audi Image

Upper Hose

Q4 e-tron. Rwd. With r744 refrigerant. From 04/19/2021 to 10/23.
$40.30 CAD
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1EA121058F - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

Awd with r-1234yf refrigerant rear. to 10/30/2023. Rwd, rear.
$76.40 CAD
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1J0122291 - : Radiator Coolant Hose Adapter for Audi Image

Radiator Coolant Hose Adapter

1.8L, 225 horsepower, upper hose. 1.8L 180 horsepower. upper hose.
$42.70 CAD
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1EA121281K - : Air Duct for Audi Image

Air Duct

Awd with r-1234yf refrigerant. Air duct. Rwd with r-744 refrigerant.
$93.80 CAD
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11A805567F - : Hood Latch Support for Audi Image

Hood Latch Support

Mount components.
$67.40 CAD
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4G0121071N - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

2012-15 3.0L gas return. Tube. 2016-18, front. Connector pipe. Gas, return, from 3/11. 3.0L gas front. 3.0L diesel, supply.
$42.55 CAD
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