Symptoms of a Bad or Failing Coolant Reservoir

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Cost of Replacing a Bad or Failing Coolant Reservoir

Common signs include needing to constantly add coolant, finding coolant leaks, and the engine overheating. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Coolant Reservoir Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2004 Ford Thunderbird $527 $457.46 $70.00 6% $564.96
2004 Chrysler Intrepid $167 $97.30 $70.00 18% $204.80
2005 Honda Insight $146 $76.10 $70.00 20% $183.60
2011 Mercedes-Benz S400 $221 $150.88 $70.00 14% $258.38
2007 Mercedes-Benz ML320 $233 $162.88 $70.00 13% $270.38
2014 Jaguar XJR $310 $240.50 $70.00 10% $348.00
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How to Diagnose a Bad or Failing Coolant Reservoir?

coolant reservoir

The coolant reservoir is the plastic reservoir mounted in the engine bay that stores the coolant for the engine. Coolant reservoirs are required because engines go through cycles of expelling and absorbing coolant as they warm up and cool down. When the engine is cold, the pressure of the cooling system is low and more coolant is required, and when the engine is warm the pressure of the cooling system is increased and therefore less coolant is required.

For some vehicles, the coolant reservoir is an integral part of the system, and since it is also pressurized, the coolant reservoir becomes an even more important component to engine safety. Because the coolant reservoir is part of the cooling system, when it has any issues it can quickly lead to issues with the engine. Usually a bad or failing coolant reservoir will produce a few symptoms that can alert the driver that a problem has occurred and should be serviced.

1. Constantly low on coolant

One of the first symptoms commonly associated with a bad or failing coolant reservoir is the need to constantly add coolant. If the reservoir cracks or develops any small leaks it can cause the coolant it is storing to leak or evaporate at a slow rate. The leaks may be small enough that they may not be obvious to the driver, however, over time they will cause the reservoir to empty out. The constant need to add coolant can also be caused by a leak somewhere else on the engine so a proper diagnosis is recommended.

2. Coolant leaks

Another symptom of a potential problem with the coolant reservoir is coolant leaks. If the coolant reservoir cracks or breaks due to old age or overheating it will leak. Small leaks may produce steam and drips, while larger leaks will produce streams and puddles, as well as an obvious coolant odor.

3. Engine overheating

Another more serious symptom of a bad or failing coolant reservoir is the engine overheating. If the coolant reservoir has any issue that prevents it from properly holding coolant, or from properly pressurizing the system it may cause the engine to overheat. Any issue that causes engine overheating should be addressed as soon as possible in order to prevent any possible damage to the engine.

The coolant reservoir is a simple but important component of the cooling system, and when it has issues it can quickly lead to overheating and even engine damage. For this reason, if you suspect that your coolant recovery reservoir may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic. They will be able to determine if the car needs a coolant reservoir replacement.

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Recent Coolant Reservoir Replacement reviews

Excellent Rating


YourMechanic Coolant Reservoir Replacement Service

Average Rating

4.9/5

Number of Reviews

88

Rating Summary
84
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2
84
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2

Rodney

33 years of experience
336 reviews
Rodney
33 years of experience
The repairs and overall experience was great. Rodney was prompt, professional and got the job done!
2003 AUDI A4 QUATTRO - COOLANT RESERVOIR - EL DORADO HILLS, CALIFORNIA

Manuel

29 years of experience
176 reviews
Manuel
29 years of experience
Great experience very helpful.
2011 VOLVO C70 - COOLANT RESERVOIR REPLACEMENT - LAGUNA BEACH, CALIFORNIA

Sean

5 years of experience
4 reviews
Sean
5 years of experience
He was able to show me other things that needed attention and point them out to me on the sport. I appreciate him.
1997 TOYOTA TACOMA - COOLANT RESERVOIR - FRESNO, CALIFORNIA

Peter

40 years of experience
1069 reviews
Peter
40 years of experience
Good guy knows what he is doing
2002 CHEVROLET IMPALA - COOLANT RESERVOIR - MESA, ARIZONA

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