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.

4K0145806B - : Inter-Cooler for Audi Image

Inter-Cooler

RS6 Avant. Right. RS7 Sportback.
$1,545.00 CAD
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8K0121283S - : Air Duct for Audi Image

Air Duct

2.0L.
$167.00 CAD
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WHT006537 - : Turbocharger Oil Line O-Ring for Audi Image

Turbocharger Oil Line O-Ring

Feed. At Turbo. 11 x 2.8mm. Turbocharger Cooling. 11 x 2.8mm. Return. Supply. 4.0L. from 1/2013.
$9.21 CAD
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N10632003 - : Cover Bolt for Audi Image

Cover Bolt

Aux pump,bolt. Actuator,bolt. Engine code: dsfa or dsfd. Mount bracket,mount bolt. Convertible,. Drivers side seat back components suv....
$1.40 CAD
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N90275302 - : Engine Coolant Pipe O-Ring for Audi Image

Engine Coolant Pipe O-Ring

32 x 3mm. 2.0L. 3.0L.
$6.00 CAD
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N91139001 - : Fender Bolt for Audi Image

Fender Bolt

M6x14-n-ct5x16. 4.0L.
$11.05 CAD
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11A805764F - : Hood Latch Support for Audi Image

Hood Latch Support

Mount components.
$66.00 CAD
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6M145736F - : Turbocharger Oil Line for Audi Image

Turbocharger Oil Line

Oil outlet tube. S5. S4. A6 Quattro. 3.0l. Q8. A7 Sportback. 3.0l. A6 allroad. SQ5 Sportback. 3.0L 3.0L plug-in hybrid. return....
$268.00 CAD
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6K121049A - : Hose for Audi Image

Hose

Outlet Flange to Reservoir Pipe. Engine Cooling. Engine code czra. 2.0L, code dlra, left side. Sedan, 1.8L. Sedan, engine code cntc....
$33.65 CAD
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