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.

5Q0122101DT - : Upper Hose for Audi Image

Upper Hose

S3. Primary Radiator. To 04/10/2017. From 10/20/2014. To 10/20/2014.
$348.00 CAD
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4M0825206J - : Floor Pan Splash Shield for Audi Image

Floor Pan Splash Shield

Shield used to direct water/debris away From the floor pan. Fits Q7, Q8, SQ7, SQ8
$591.00 CAD
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5Q0122073H - : Engine Coolant Hose for Audi Image

Engine Coolant Hose

Auxiliary Water Pump. HVAC System. Outlet. 2.0L, diesel, auxiliary, rear.
$39.95 CAD
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5Q0122051BA - : Lower Hose for Audi Image

Lower Hose

A3.
$55.00 CAD
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6E121083Q - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

Water manifold. 2016-18, auxiliary. 3.0L gas auxiliary.
$275.00 CAD
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6E145621S - : Inter-Cooler for Audi Image

Inter-Cooler

$1,155.00 CAD
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6B145917A - : Engine Coolant Pipe Clamp for Audi Image

Engine Coolant Pipe Clamp

2.0L, rear, lower, 2016-18. 2013-2016, 21x12. 2.0L plug-in hybrid center. Lwr hose & tube,clip. 2.0L, auxiliary, 2013-17, to water pipe....
$17.35 CAD
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5WA121407F - : Engine Coolant Reservoir for Audi Image

Engine Coolant Reservoir

Engine code: dnvb or dywa. S3. Engine code: dsfa. A3. Engine code: dsfd.
$40.40 CAD
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5WA121447 - : Radiator Coolant Hose for Audi Image

Radiator Coolant Hose

Engine code: dsfa, right side. Engine code: dsfd, right side. Engine code: dnvb or dywa right side. Hose.
$27.40 CAD
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6M121432F - : Engine Coolant Pipe Adapter for Audi Image

Engine Coolant Pipe Adapter

2020-24 3.0L alternator. upper. 2.9L, main, right side, #3. 3.0L, without plug-in hybrid, alternator, lower, from 06/02/2021. 3.0L,...
$60.00 CAD
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6R121491R - : Engine Coolant Pipe for Audi Image

Engine Coolant Pipe

Tube assy. 2.0L, upper.
$317.00 CAD
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