Mercedes-Benz CLS550 Car AC Compressor Relay Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(76)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(76)

Car AC Compressor Relay Replacement Service

How much does a Car AC Compressor Relay Replacement cost?

On average, the cost for a Mercedes-Benz CLS550 Car AC Compressor Relay Replacement is $123 with $28 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2009 Mercedes-Benz CLS550V8-5.5LService typeCar AC Compressor Relay ReplacementEstimate$170.13Shop/Dealer Price$201.42 - $255.90
2007 Mercedes-Benz CLS550V8-5.5LService typeCar AC Compressor Relay ReplacementEstimate$150.13Shop/Dealer Price$181.45 - $235.95
2010 Mercedes-Benz CLS550V8-5.5LService typeCar AC Compressor Relay ReplacementEstimate$150.13Shop/Dealer Price$181.45 - $235.95
2011 Mercedes-Benz CLS550V8-5.5LService typeCar AC Compressor Relay ReplacementEstimate$150.13Shop/Dealer Price$181.41 - $235.88
2008 Mercedes-Benz CLS550V8-5.5LService typeCar AC Compressor Relay ReplacementEstimate$150.13Shop/Dealer Price$181.47 - $236.00
Show example Mercedes-Benz CLS550 Car AC Compressor Relay Replacement prices

What is the AC Compressor Relay all about?

In order to operate, your air conditioning system needs to compress refrigerant to pressurize it. The compressor is both electronic and belt-driven. The AC compressor relay controls the supply of electricity.

The AC compressor relay acts as a control, turning the compressor on and off when necessary. It may be located close to the compressor (under the battery tray, for instance), but it may also be located in the under-hood fuse box, or somewhere else depending on the make and model in question. However, like all other relays, this one is subject to wear and tear, and eventual failure over time.

Keep in mind:

  • The AC compressor relay is not inspected during normal maintenance, but a serious malfunction will be noticeable during AC system recharges or other similar work.
  • Without a working relay, the AC compressor will not operate.

How it's done:

  • The AC compressor relay is verified to see if it needs to be replaced
  • The defective AC compressor relay is removed
  • The new AC compressor relay is installed
  • The AC compressor relay is tested for operation
  • The vehicle is tested to ensure proper operation of the AC compressor relay

Our recommendation:

The AC compressor relay is an integral part of the system. Without an operable relay, electricity cannot be sent to the compressor, and it will not function despite having a good belt, good clutch and other components. If your compressor does not function, have one of our expert mechanics diagnose the system and replace the AC compressor relay if required.

What common symptoms indicate you may need to replace the AC Compressor Relay?

  • Compressor will not turn on
  • AC system doesn’t blow cold air

How important is this service?

Having a functional AC compressor relay is essential to air conditioner operation. While the blower motor will still circulate air in the cabin, that air will not be cold because the compressor isn’t pressurizing refrigerant. This isn’t critical for vehicle operation, but it does affect driver and passenger comfort and the ability to clear foggy windows. If the AC compressor relay has been diagnosed as faulty, have it replaced as soon as you can.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(76)

Rating Summary
67
2
1
2
4
67
2
1
2
4

Eduardo

19 years of experience
553 reviews
Eduardo
19 years of experience
Mercedes-Benz CLS550 V8-4.6L Turbo - Oil/Fluid Leak - Houston, Texas
Overall good service but his communication can improve.

Adam

17 years of experience
124 reviews
Adam
17 years of experience
Mercedes-Benz CLS550 V8-5.5L - Starter - Houston, Texas
Adam was on time and finished on time. One of the first mechanics in my life that I was completely impressed with.

Chris

18 years of experience
494 reviews
Chris
18 years of experience
Mercedes-Benz CLS550 V8-5.5L - Pre-purchase Car Inspection - Katy, Texas
Chris was very professional and courteous. He called to inform me that he would be arriving a little late because he just finished with another customer and he was 49 minutes away which would make him 14 minutes late pass his time window of arrival. I greatly appreciated him calling me. Once here he gave me a time frame for my pre buy inspection and it was accurate.He did a thorough one and a half hour inspection on my Mercedes Benz and showed me features that I was not aware of and explained what he was finding along the way. I found him to be knowledgeable and courteous.

Mathew

17 years of experience
66 reviews
Mathew
17 years of experience
Mercedes-Benz CLS550 V8-5.5L - suspension inspection - Brooksville, Florida
Best mechanic on here!

Excellent Rating

(76)

Rating Summary
67
2
1
2
4
67
2
1
2
4
Number of Mercedes-Benz CLS550 services completed
836+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

P0207 OBD-II Trouble Code: Injector Circuit Malfunction - Cylinder 7
P0207 P0207 code definition Injector Circuit Malfunction - Cylinder 7 What the P0207 code means The P0207 code is a common OBD2 diagnostic trouble code (DTC) that is set when the Engine Control Module (ECM) detects out of range performance...
Rules of the Road For Maine Drivers
While While you likely know the rules of the road in your home state very well, that doesn’t mean you know them in all of the states. Even though many driving laws are the same from one state to another,...
A Mechanic's Guide to the Parts of a Car
Modern cars have many different parts and features, including catalytic converters, anti-lock brakes, four-wheel drive, and keyless ignition.

Intermittent whistling sound coming from front of car

Hi there: The sound you're describing is very similar to a serpentine or drive belt that is beginning to show signs of being loose or damaged. As the belt progressively gets looser, this noise will become more noticeable until it's...

Misfire after installing AC

Hello. In most cases the AC system should not affect the operation of the engine. If the issues only began after the AC was installed, it may be possible that the issue developed while the AC was being worked on....

For my car once i drive my car it is very hard to turn do i need to replace the power steering motor or pump?

Hi Dewayne. Thanks for contacting us today. The G6 comes with an electronic power steering system but does also have a hydraulic pump to assist in the operation of steering. The only way to know what needs to be repaired...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com