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Estimates last updated September 3, 2026
Mercedes-Benz EQB 300 Air Conditioning Expansion Valve Replacement Cost
The average cost for a Mercedes-Benz EQB 300 Air Conditioning Expansion Valve Replacement is between $673 and $793.
Labor costs are estimated between $256 and $376 while parts are typically priced around $417.
This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
For a more accurate estimate based on your location, use our Fair Price Estimator below.
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Air Conditioning Expansion Valve Replacement
Common symptoms
When the expansion valve fails or clogs, the air conditioning system will not blow cold air, or may intermittently blow cold air for very short periods.
Best practices
The air conditioner evaporator or receiver drier may need replacement, and the system may need to be flushed if debris or sludge is noticed.
Common misdiagnoses
The expansion valve is controlled by a temperature sensor, so this sensor is often blamed for failure of the expansion valve.
It maybe necessary to Evacuate and Recharge the Air Conditioning system during this repair. This will be an additional cost that is not reflected in this estimate.
Mercedes-Benz Air Conditioning Expansion Valve Replacement Cost Estimates
The average cost for a Air Conditioning Expansion Valve Replacement is between $673 and $793 but can vary from car to car.