Mercedes-Benz 400SE 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 Mercedes-Benz 400SE Coolant Reservoir Replacement is $210 with $115 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1992 Mercedes-Benz 400SEV8-4.2LService typeCoolant Reservoir ReplacementEstimate$344.35Shop/Dealer Price$419.19 - $604.34
Show example Mercedes-Benz 400SE 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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Excellent Rating

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Vladimir

10 years of experience
214 reviews
Vladimir
10 years of experience
Mercedes-Benz C230 L4-2.3L Turbo - Coolant Reservoir - Sacramento, California
Very helpful

David

16 years of experience
637 reviews
David
16 years of experience
Mercedes-Benz E320 L6-3.2L - Coolant Reservoir - Vallejo, California
David was very professional and courteous.

Chris

22 years of experience
2247 reviews
Chris
22 years of experience
Mercedes-Benz ML350 V6-3.7L - Coolant Reservoir - Laguna Niguel, California
I'm a repeat Customer and a hugh fan of Chris. He definitely knows his trade, knows how to diagnose a problem and come up with an affordable solution. Excellent response time - exceptionally professional. I am recommending Chris and MyMechanic to all of my friends.

Johnny

33 years of experience
279 reviews
Johnny
33 years of experience
Mercedes-Benz CLK320 V6-3.2L - Coolant Reservoir - Antelope, California
He's GREAT fast an honest

Excellent Rating

(20)

Rating Summary
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Number of Mercedes-Benz Coolant Reservoir Replacement services completed
220+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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