Mercedes-Benz S55 AMG Expansion Valve (Orifice Tube) Replacement at your home or office.

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Expansion Valve (Orifice Tube) Replacement Service

How much does a Expansion Valve (Orifice Tube) Replacement cost?

On average, the cost for a Mercedes-Benz S55 AMG Expansion Valve (Orifice Tube) Replacement is $492 with $160 for parts and $332 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2005 Mercedes-Benz S55 AMGV8-5.5L TurboService typeExpansion Valve (Orifice Tube) ReplacementEstimate$742.43Shop/Dealer Price$914.93 - $1235.53
2001 Mercedes-Benz S55 AMGV8-5.5LService typeExpansion Valve (Orifice Tube) ReplacementEstimate$652.49Shop/Dealer Price$820.16 - $1125.92
2006 Mercedes-Benz S55 AMGV8-5.5L TurboService typeExpansion Valve (Orifice Tube) ReplacementEstimate$672.43Shop/Dealer Price$845.07 - $1165.78
2003 Mercedes-Benz S55 AMGV8-5.5L TurboService typeExpansion Valve (Orifice Tube) ReplacementEstimate$672.43Shop/Dealer Price$844.87 - $1165.44
2002 Mercedes-Benz S55 AMGV8-5.5LService typeExpansion Valve (Orifice Tube) ReplacementEstimate$672.43Shop/Dealer Price$845.21 - $1166.02
2004 Mercedes-Benz S55 AMGV8-5.5L TurboService typeExpansion Valve (Orifice Tube) ReplacementEstimate$672.43Shop/Dealer Price$845.07 - $1165.78
Show example Mercedes-Benz S55 AMG Expansion Valve (Orifice Tube) Replacement prices

What is the Expansion Valve (Orifice Tube) all about?

The air conditioning system in your vehicle depends on the refrigerant that circulates in the A/C system. In particular, the evaporator core inside the passenger compartment requires a specific, metered amount of refrigerant in order to efficiently cool the interior. The expansion valve, also known as an orifice tube in some designs, regulates the pressure of refrigerant that enters the evaporator. The tube is also where liquid refrigerant under pressure converts to a gaseous form. The gaseous refrigerant absorbs heat from air passing through the evaporator core and carries it to the condenser where the heat is removed.

In a situation where the orifice tube is either blocked or stuck open, the air conditioning will not cool properly. Too much refrigerant will cause frost on the core and prevent air from passing through to cool the air temperature. Too little refrigerant passing through the evaporator means not enough heat is absorbed and the interior is insufficiently cooled. In either situation, you may need to replace the expansion valve/orifice tube.

Keep in mind:

  • Air conditioning work needs to be completed by a trained and licensed professional in nearly all circumstances because refrigerants are regulated substances.
  • It is possible for the expansion valve to become blocked by excessive moisture in the air conditioning system, which would indicate a receiver/drier problem.

How it's done:

  • The AC refrigerant is removed from the system
  • The defective expansion valve is removed
  • The new expansion valve is installed
  • The a/c system is recharged with refrigerant
  • The a/c system is tested for leaks and proper operation

Our recommendation:

Whenever air conditioning repairs or refrigerant recharges are performed, have the expansion valve inspected for proper operation. If the expansion valve is not opening or closing properly, you may need one of our expert technicians to replace the expansion valve or orifice tube.

What common symptoms indicate you may need to replace the Expansion Valve (Orifice Tube)?

  • Air conditioning doesn’t cool sufficiently
  • Air conditioning expansion valve is frosty but the air conditioning isn’t blowing cold air

How important is this service?

Air conditioning is a comfort item in a vehicle, not a safety issue. However, the air conditioning also removes moisture in the air for the defrost setting to clear your windows. If the air conditioning is not working properly, your vision may be impaired in humid or very cold weather.

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Jay

23 years of experience
179 reviews
Jay
23 years of experience
Mercedes-Benz S55 AMG V8-5.5L - Camshaft Position Sensor - Glen Ellyn, Illinois
Very friendly and knowledgable. I would definately use again.

James

30 years of experience
916 reviews
James
30 years of experience
Mercedes-Benz S55 AMG V8-5.5L Turbo - Air is not coming out of vents Inspection - Orlando, Florida
James is a go getter he wont stop until its right...love his tenacity!

Richard

19 years of experience
80 reviews
Richard
19 years of experience
Mercedes-Benz S55 AMG V8-5.5L Turbo - Battery will not hold a charge - Cameron, North Carolina
On time and very knowledgeable, gave great recommendation.

Ira

36 years of experience
259 reviews
Ira
36 years of experience
Mercedes-Benz S55 AMG V8-5.5L Turbo - Pre-purchase Car Inspection - Sun City Center, Florida
Very happy. Ira is a real PRO! I would call on him again.

Excellent Rating

(5)

Rating Summary
5
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5
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Number of Mercedes-Benz S55 AMG services completed
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TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
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