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.

59121104A - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

Auxiliary Water Pump. Outlet. Toward EGR Cooler. 3.0L, #2.
$22.15 CAD
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59121052G - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

EGR Cooler to Pipe. All Required. Diesel, upper, 2010-12. 3.0L, #1.
$13.65 CAD
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59121055E - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

3.0L, auxiliary. Turbocharger Cooling.
$15.55 CAD
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5QF122051BE - : Radiator Coolant Hose for Audi Image

Radiator Coolant Hose

Right side. Q3.
$258.00 CAD
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5Q0121070BR - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

Connector pipe. 2.0L, gas engine code czra. Engine code dhha, right side. 2.0L, code dhha right side. 2.0L, gas engine code cntc. 1.8L....
$157.50 CAD
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5Q0122291CJ - : Radiator Coolant Hose Adapter for Audi Image

Radiator Coolant Hose Adapter

Sedan/wagon, engine code djja or dlra, auxiliary radiator, left side. 2.0L, code cyfb, auxiliary-left side. Sedan/wagon, engine code...
$7.90 CAD
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5Q0122101EA - : Upper Hose for Audi Image

Upper Hose

A3. To 04/10/2017. To 05/15/2017. TT Quattro. TTS Quattro.
$181.00 CAD
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5Q0122291BL - : Upper Coupling for Audi Image

Upper Coupling

Primary Radiator. Upper Radiator Coolant Hose. At Radiator. Incl.C-Clip and Seal. 2.0L, code cyfb, left side. 2.0L, gas engine code djja...
$47.95 CAD
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5Q0121058AC - : Hose for Audi Image

Hose

$63.20 CAD
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5Q0121093BD - : Radiator Coolant Hose Hold Down for Audi Image

Radiator Coolant Hose Hold Down

2.0L, code dlra, auxiliary- right side. 2.0L, code dlra, auxiliary- left side. 2.0L, code dhha, auxiliary- right side. 2.0L, code cyfb,...
$11.65 CAD
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