Audi A4 Coolant Hose Parts

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For clip-in style sensors at water outlet fitting, see also 032121142 c-clip retainer for VAG listings or 99902101101 or 95510614300 c-clip for POR application listings. 1 per sensor.
1996-2014 Audi A4, A4 Quattro
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$0.99
Reg
$1.03
List
$3.65
Vent Hose; Vent Tube, Cooling Pipe, HVAC Heater Hose, Venthose Coupe, 2.0L, front. 2.0L, auto trans. 2017-20. 2.0L, main hoses. 2.0L, rear, lower, 2016-18.
2017, 2018, 2019, 2020 Audi A4, A4 allroad, A4 Quattro
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$62.99
Reg
$65.61
List
$67.50
For models with quick-connect style radiator hose attachment, please verify prior to ordering.
1997-2019 Audi A4, A4 Quattro
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$2.09
Reg
$2.18
List
$6.28
1996-2014 Audi A4, A4 Quattro
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$0.99
Reg
$1.03
List
$2.73
2010, 2011, 2012, 2013, 2014 Audi A4, A4 Quattro
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$63.99
Reg
$66.66
List
$27.20
Breather Coupe, 2.0L, front, upper. 2.0L, auto trans. 2.0L, manual trans. 2017-20.
2017, 2018, 2019, 2020 Audi A4, A4 allroad, A4 Quattro
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$66.99
Reg
$69.78
List
$67.50
1996-2015 Audi A4, A4 Quattro
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$4.79
Reg
$4.99
List
$3.65
2010, 2011, 2012, 2013, 2014, 2015, 2016 Audi A4, A4 Quattro
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$2.39
Reg
$2.49
List
$3.35
Hose Assembly; Water Hose 2.0L, auto trans, from 12/03/2019. 2.0L, front, from 12/02/2019. 2017-20.
2020 Audi A4, A4 allroad, A4 Quattro
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$181.99
Reg
$189.57
List
$181.66
1996-2015 Audi A4, A4 Quattro
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$2.19
Reg
$2.28
List
$3.65
Upper
2002, 2003, 2004, 2005 Audi A4, A4 Quattro
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$127.99
Reg
$133.32
List
$158.33
2017, 2018, 2019, 2020 Audi A4, A4 allroad, A4 Quattro
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$24.39
Reg
$25.41
List
$67.50
For models with AHA and ATQ engines only. 1 per car.
1998, 1999, 2000, 2001 Audi A4, A4 Quattro
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$28.99
Reg
$30.20
List
$138.03
1 per car.
1997, 1998, 1999, 2000, 2001, 2002 Audi A4, A4 Quattro
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$1.99
Reg
$2.07
List
$10.80
OEM
2005, 2006, 2007, 2008, 2009 Audi A4, A4 Quattro
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$187.99
Reg
$195.82
List
$248.33
1997-2012 Audi A4, A4 Quattro
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$0.99
Reg
$1.03
List
$2.17
See also 037121687 (included) mount oring and N90316802 (not included) sensor seal oring. 1 per car.
2001, 2002 Audi A4, A4 Quattro
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$12.89
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$13.43
List
$48.36
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Audi A4, A4 Quattro
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$24.99
Reg
$26.03
List
$80.83
OEM
With temperature switch fitting. On models without temperature switch in hose please use 357121140 plug kit. 1 per car.
1999, 2000, 2001 Audi A4, A4 Quattro
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$23.89
Reg
$24.89
List
$123.62
1999, 2000, 2001 Audi A4, A4 Quattro
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$35.99
Reg
$37.49
List
$147.26

The average price of a Audi A4 coolant hose is between $0.99 and $187.99.

What Are Signs That My Audi A4 Coolant Hose Needs Replacement?

Noticing something off under the hood? Take a look at your Audi A4 coolant hose. If you spot cracks, splits, or bulging spots along the hose, it's a sure warning. Liquid pooling under the car can mean coolant is sneaking out. Touch the hose—if it feels squishy, too soft, or even brittle and stiff, it's time to consider a change. A sweet, syrupy smell hanging in the air is another clear clue. If you're topping up coolant more than usual, don’t ignore it. Catching these signs early can save you from bigger headaches later.

How Often Should I Replace The Audi A4 Coolant Hose?

Timing varies, but most Audi A4 coolant hoses last several years if you’re driving under normal conditions. Mechanics like to check hoses every 30,000 miles, especially if you’re tough on your car or deal with lots of stop-and-go traffic. Many drivers get 60,000 to 90,000 miles from factory hoses, but age, heat, and rough roads might shorten that window. If you find any leaks or the hose looks worn, swap it out right away. Don't wait for a breakdown.

What Causes The Audi A4 Coolant Hose To Fail?

Most hoses don’t last forever. Heat does the most damage to an Audi A4 coolant hose, making the rubber weak and less flexible over time. Oil getting on the hose can eat through the material, and sharp edges or engine movement can wear it thin. Low-grade coolant sometimes leads to corrosion inside the hose, speeding up failure. Hoses can wear from the outside, too, with rocks or debris from the road doing their share of harm. Regular checks will spot problems before things get out of hand.

Can I Replace The Audi A4 Coolant Hose Myself?

Plenty of drivers tackle the Audi A4 coolant hose swap at home. With a few tools and some patience, it’s not a tough job. Always give your engine time to cool before starting. Let off any built-up pressure in the system, then loosen the clamps and pull off the old hose. Fit the new hose snug and secure with new clamps if needed. After getting everything in place, let the engine run and watch for leaks. No rush—take it one step at a time, and use a repair manual if anything throws you off.

Which Coolant Hose Brand Is Best For The Audi A4?

Debates about Audi A4 coolant hose brands come up a lot. Many car owners stick with OEM hoses—they fit perfectly and tend to last. Big names in the aftermarket space offer solid choices, sometimes at friendlier prices. Always double-check that a hose matches your exact year and engine. Reinforced rubber and good temperature ratings matter if you want the hose to hold up. Some drivers go with silicone for better durability, especially in hot or harsh climates. As long as the hose fits right and uses quality materials, it should serve you well.

How Can You Find The Right Audi A4 Coolant Hose Easily?

Finding the right Audi A4 coolant hose doesn’t have to be a hassle. At AutohausAZ, you’ll find solid prices and fast shipping every time. Unsure about your choice? You can send it back—returns are simple, so you shop with less worry. Keep your car ready for the next drive without spending a fortune or wasting time.