Heater Bypass Tube Replacement at your home or office.

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How much does Car Heater Bypass Tube Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

YourMechanic Price
$83 to $93
Labor: $70 -$80
Parts: $13
Average Dealer price
$119
Average Shop price
$100
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Car Heater Bypass Tube Replacement for 2006 Volkswagen Golf L4-2.0LYourMechanic Price$84.25Shop/Dealer Price$102.33 - $123.91
Show example Car Heater Bypass Tube Replacement prices

Car Heater Bypass Tube Replacement Service & Cost

What is the Heater Bypass Tube all about?

The heater bypass tube allows a small amount of coolant to circulate throughout your car engine when the thermostat is closed. It bypasses the thermostat, hence the name. Some engines are equipped with bypass hoses, while others have a bypass passage that forms a part of the cooling jacket in the engine. This is really just terminology – the effect is the same.

The bypass tube prevents excessive pressure from being built up within the system, delivers a bit of heat when the engine is started, and allows for even cooling from the point of startup. When the thermostat opens up coolant flow in your car, the engine begins to cool. The car thermostat closes a bit and increases coolant flow through the heater core and the bypass hose.

Keep in mind:

  • Heater bypass tube replacement is not part of your vehicle’s routine maintenance, so your mechanic will not check it when doing an oil change or checking your fluid levels.
  • Cooling problems can be devastating to your car’s engine.
  • Don’t assume that the problem is the bypass tube – it could be the thermometer, the radiator, or another faulty component in the car cooling system.
  • If you have pets, keep them away from leaked coolant – it is highly toxic.

How it's done:

  • The vehicle's hood is opened and coolant is drained
  • The two heater lines are disconnected from the heater core
  • The new heater bypass tube is installed
  • The coolant is refilled and the vehicle is started
  • The repair is verified and the heater bypass tube tested for leaks

Our recommendation:

Problems with the heater bypass is not something you should try to diagnose or fix on your own. This is a diagnosis and repair issue that is best left to one of our expert mechanics.

What common symptoms indicate you may need to replace the Heater Bypass Tube?

  • A strong smell of coolant
  • A puddle of yellow-green fluid (coolant) under your car

How important is this service?

If there is a problem in your cooling system, you could end up with an overheated engine, and the repairs could be extremely expensive. Have one of our expert mechanics determine if the problem is with the bypass tube and replace it if necessary.

Fast and easy Car Heater Bypass Tube Replacement service at your home or office.

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Meet some of our expert mechanics

Real customer reviews from owners like you.

12 reviews
Jacob
11 years of experience
Extremely helpful and friendly. Explained everything in a way that a non-car person could understand. Didn't try to sell me a service that was unnecessary.
2011 MERCEDES-BENZ GL450 - EXTERIOR DOOR HANDLE REPLACEMENT (DRIVER SIDE REAR)
Want Jacob's expert advice? Ask your question now. Its free!
4 reviews
Brandon
17 years of experience
Excellent. Brandon was on time, introduced himself. He was very personable. Explained what he was doing and we went over everything once he was done, very professional. I was very impressed with him and his work. Thank you, Kathleen Wainwright, Senoia, GA
1998 FORD EXPEDITION - STARTER SOLENOID
Want Brandon's expert advice? Ask your question now. Its free!
3 reviews
Josh
14 years of experience
Josh did a wonderful job ,thank you so much Josh I will be calling for your service ,God Bless.
2007 FORD FOCUS - BASIC INSPECTION
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2 reviews
Brandon
13 years of experience
Brandon showed up on time in the appointment window at my residence. He is an experienced mechanic and was knowledgeable and professional. He finished the job faster than expected and also gave me a helpful quote for other services needed in the future . I'm was very satisfied with his service and will likely contact him for future repairs. I would highly recommend him.
1998 HONDA ACCORD - AXLE / CV SHAFT ASSEMBLY REPLACEMENT (PASSENGER SIDE FRONT)
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Car Heater Bypass Tube Replacement for 2006 Volkswagen Golf L4-2.0LYourMechanic Price$84.25Shop/Dealer Price$102.33 - $123.91
Show example Car Heater Bypass Tube Replacement prices

How can we help?

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1-800-701-6230 · hi@yourmechanic.com