How Long Does a Coolant Reservoir Last?

The coolant reservoir is a tank located in your vehicle that holds the overflowing coolant that comes from your cooling system. The reservoir is a clear plastic container located near the radiator. The cooling system is attached to your engine. This system is made up of tubes and pipes that have coolant running through them. The system works by having a pipe push and pull the coolant through.

The fluid expands as it is subjected to more heat. If the fluid in your cooling system is filled to the top when your engine is cold, it will need somewhere to go when the fluid warms up and expands. The excess coolant goes into the reservoir. Once the engine cools down, the extra coolant flows back into the engine through a vacuum system.

Over time, the coolant reservoir can leak, become worn, and fail because it is used on a regular basis. If the cooling reservoir shows signs of becoming bad, and it is left unattended, the engine can become damaged and complete engine failure is possible. It is best to avoid this by providing the coolant reservoir with regular maintenance. Check your coolant on a regular basis and ensure it is properly filled up. While you are doing this, look for any signs of cracks or broken pieces that indicate the coolant reservoir needs to be replaced.

Since the coolant reservoir does not last the life of your vehicle, there are a few symptoms you should watch for that indicate it is going bad and will need to be replaced soon.

Signs you need to replace your coolant reservoir include:

  • The engine is overheating
  • You notice coolant leaking underneath your vehicle
  • Coolant level keeps dropping on a regular basis
  • The temperature gauge keeps rising near the danger zone
  • Hissing sounds or steam comes from the hood of the engine

The coolant reservoir is an essential part of your vehicle’s cooling system, so it should be in good working condition. As soon as you notice any problems, have the vehicle looked at as soon as possible so as not to cause damage to your engine.


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Recent Coolant Reservoir Replacement reviews

Excellent Rating

(197)

Rating Summary
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Chuy

14 years of experience
398 reviews
Chuy
14 years of experience
Kia Sportage V6-2.7L - Coolant Reservoir - Chicago, Illinois
He is very professional and comes super early and walks you threw everything so you can make sure you know what he doing
Pontiac G6 - Coolant Reservoir Replacement - Chicago, Illinois
Chuy called to tell me what time he would arrive. He did a great job on my vehicle . He checked my car and noticed some other issues I needed to address and sent me an estimate. I will certainly be using this service again. Very convenient that they come to you.

Deward

17 years of experience
53 reviews
Deward
17 years of experience
Volkswagen Jetta L5-2.5L - Coolant Reservoir - Greensboro, North Carolina
Deward was a little late in arriving because the previous job he was on ran longer than expected, but he sent a note letting me know the status before my appointment time. Being informed about the status is the most important thing. If work on my car took longer than expected, I would want him to take whatever time was necessary and not rush the work just to stay on schedule. He replaced the coolant overflow reservoir to fix a leaking problem. The work was done quickly and there is no sign of any leaking. It's easy to talk about the work being done with him and get answers to questions. He is relaxed and knows what he is doing. I would definitely recommend him to someone else.

Lavell

28 years of experience
230 reviews
Lavell
28 years of experience
Chevrolet Sonic L4-1.8L - Coolant Reservoir - Vallejo, California
Another great job by Lavell. He was on it. Calls you prior to appointment about questions, thorough in inspection. Prompt and careful during the process. Takes photos and leaves audio notes afterwards. I trust in Lavell to book him again with another appointment. Thanks so much. Glad to find a mechanic to trust and that will come to the house to fix issues.

Attila

19 years of experience
906 reviews
Attila
19 years of experience
BMW X5 L6-3.0L - Coolant Reservoir Replacement - Orange, New Jersey
Replacement coolant expansion tank on my 2002 BMW X5... Attila was very professional. I can see he really enjoy what he does. I will book him whenever I need my BMW serviced.. I highly recommend him!!!

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