Subaru Legacy Coolant Reservoir Replacement at your home or office.

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Coolant Reservoir Replacement Service

How much does a Coolant Reservoir Replacement cost?

On average, the cost for a Subaru Legacy Coolant Reservoir Replacement is $213 with $118 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1994 Subaru LegacyH4-2.2LService typeCoolant Reservoir ReplacementEstimate$400.35Shop/Dealer Price$481.69 - $703.21
2015 Subaru LegacyH4-2.5LService typeCoolant Reservoir ReplacementEstimate$373.95Shop/Dealer Price$453.71 - $670.44
2013 Subaru LegacyH4-2.5LService typeCoolant Reservoir ReplacementEstimate$373.95Shop/Dealer Price$453.71 - $670.44
2005 Subaru LegacyH4-2.5L TurboService typeCoolant Reservoir ReplacementEstimate$439.51Shop/Dealer Price$535.64 - $801.52
1999 Subaru LegacyH4-2.2LService typeCoolant Reservoir ReplacementEstimate$371.63Shop/Dealer Price$450.82 - $665.83
1991 Subaru LegacyH4-2.2L TurboService typeCoolant Reservoir ReplacementEstimate$330.01Shop/Dealer Price$398.78 - $582.56
2018 Subaru LegacyH6-3.6LService typeCoolant Reservoir ReplacementEstimate$387.67Shop/Dealer Price$469.47 - $692.64
2011 Subaru LegacyH4-2.5L TurboService typeCoolant Reservoir ReplacementEstimate$378.95Shop/Dealer Price$458.94 - $675.86
Show example Subaru Legacy Coolant Reservoir Replacement prices

What is the Coolant Reservoir all about?

Cooling systems on vehicles are meant to remove heat from critical engine components. The fluid or coolant that circulates through the system carries the heat out of the engine to the radiator, where air flow dissipates the heat it contains. A natural reaction to the heat which the fluid experiences is expansion. If the fluid in the cooling system is at the full mark when the engine is cold, the volume will be greater when the fluid is hot due to expansion. Because the cooling system is closed and pressurized when hot, the excess hot coolant needs to go somewhere. It is pushed into a surge tank, or an overflow tank, where it remains until the engine cools down. When the engine cools, the contraction from the fluid still in the system creates a vacuum and the surge tank’s hose draws the coolant back into the system. If the coolant surge tank is cracked or broken, the coolant will leak onto the ground. An airlock will form in the cooling system when the surge tank hose only draws in air instead of coolant.

Keep in mind:

  • Engine coolant is extremely hot when the engine is at operating temperature. Never open the cooling system when the engine is hot.
  • The surge tank should be flushed when the coolant is being changed out.

How it's done:

  • The coolant is drained into a suitable container and the coolant recovery reservoir cap is removed.

  • The old coolant recovery reservoir is disconnected from all of the hoses hoses and pulled free of the vehicle.

  • The new coolant recovery reservoir is installed into the vehicle and secured. The coolant hoses are installed and secured using new clamps.

  • The coolant is refilled and purged of air as per manufacturer recommendation.

  • The vehicle coolant recovery reservoir is checked for leaks and proper operation.

Our recommendation:

The surge tank itself should never need attention unless it is damaged or broken. Excess engine heat may also warp the container, though it is not common. If your coolant surge tank is broken or leaking, have one of our expert mechanics replace it.

What common symptoms indicate you may need to replace the Coolant Reservoir?

  • Coolant leaking onto the ground when engine is hot.
  • Engine overheats due to an airlock.

How important is this service?

The surge tank is part of the cooling system. It may seem to be auxiliary, but it is essential to proper operation. If the surge tank leaks coolant out, an airlock will form in the engine and it could overheat, causing damage. If your surge tank is broken, have it replaced as soon as possible to prevent further issues.

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Rating Summary
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Nicholas

11 years of experience
303 reviews
Nicholas
11 years of experience
Subaru Legacy H4-2.5L - Brake Pads Replacement (Rear) - Houston, Texas
great

Chris

20 years of experience
448 reviews
Chris
20 years of experience
Subaru Legacy H4-2.5L - Exhaust Gas Recirculation/EGR Valve - Hillsboro, Oregon
Chris was great! He offered to recheck engine code and check part before replacing to confirm. It ended up needing to be replaced, but it was great that he took time to recheck before doing anything.

Kiri

20 years of experience
372 reviews
Kiri
20 years of experience
Subaru Legacy H4-2.5L - Clutch is not working - Philadelphia, Pennsylvania
Showed up on time. Very friendly and professional. The problem was more complex than I thought so I had to order a part but I booked him again because I want him to do the work when it gets here.

Kenny

28 years of experience
91 reviews
Kenny
28 years of experience
Subaru Legacy H4-2.5L - Fuel Pump - San Jose, California
Kenny is a straight-forward and sincere professional, and just the kind of guy you want to fix your car so you know what's coming and where to go from there (does something need preventative maintenance, soon to be repaired, etc.). He offered to come early at my discretion as he had the time slot before me open, which was also convenient.

Excellent Rating

(345)

Rating Summary
328
11
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2
3
328
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Number of Subaru Legacy services completed
3795+
services done by our mechanics
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700+
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