Mercedes-Benz 600SL Car AC Receiver Dryer Replacement Costs

Car	Service	Estimate	Shop/Dealer Price
1993 Mercedes-Benz 600SLV12-6.0L	Service typeCar AC Receiver Dryer Replacement	Estimate$214.95	Shop/Dealer Price$256.32 - $337.10

Car

Service

Estimate

Shop/Dealer Price

1993 Mercedes-Benz 600SLV12-6.0L

Service typeCar AC Receiver Dryer Replacement

Estimate$214.95

Shop/Dealer Price$256.32 - $337.10

What is the AC Receiver Dryer all about?

The AC receiver drier is a device that only appears in air conditioning systems that employ expansion valves. The cylindrical component is found between the condenser outlet and the expansion valve inlet.

To understand what an AC receiver drier does, one must have a basic understanding how their car’s air conditioner works. Yes, it transforms hot air to cold. But there’s more to it. It does so by circulating a refrigerant that changes phase from liquid to gas and back again when forced through the system. The cold liquid refrigerant is squeezed through an evaporator, removing heat from air pulled in from the car’s cabin. Once cooled and dried, a blower pushes the air back out into the car. The warmed and vaporized refrigerant circulates through a compressor, where the vapor is cooled and transformed back into a liquid. And the process is repeated, over and over again, until you shut the AC off.

Th receiver drier serves as a filter to remove any moisture and contaminants that get into the AC system during this process. ACR Drier has three parts:

The Container: Acts as a temporary storage for oil and refrigerant during periods of low cooling demand.
The Desiccant Sack: Usually filled with silica gel, it removes moisture from the refrigerant. It also traps other debris, preventing clogs.
Inlet / Outlet: Allows the continuing flow of refrigerant around the system.

Keep in mind:

Think of the receiver drier in the same vein as you would fuel, oil, or an air filter: it is strictly a disposable. By that, we mean that it’s a necessity that can be easily replaced at a relatively affordable cost to you.
Receiver driers rarely fail on their own. When a failure does occur, however, it is usually due either to clogging from debris inside the AC system (like from a failing or failed compressor), or that the desiccant bag has broken open, allowing it to circulate throughout the system, mixing with the refrigerant and lubricant.

How it's done:

The A/C system refrigerant is removed
The A/C receiver drier is removed and replaced with a new one
The A/C system is evacuated for 30 minutes
The A/C system is recharged with the proper amount of refrigerant
The system is checked for proper operation

Our recommendation:

The receiver drier must be changed each time your mechanic opens the system for service. Most compressor warranties require it. At the very least, it should be replaced every three years.

What common symptoms indicate you may need to replace the AC Receiver Dryer?

Unusual sounds while the system is running
Wide variances in cabin air temperature

How important is this service?

Moisture kills an air conditioning system. Once inside, it combines with refrigerant, forming hydrochloric acid, which is extremely corrosive to metal components. So replacing the receiver drier is essential when servicing the air conditioner. If you replace any component of the system you must also replace the receiver drier. If you do not, there could be serious damage to the other parts of the system, which could be very costly in the long run.

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