Mahle Behr AC Compressor | 351322891
Make Sure It Fits
The AC compressor is the heart of your Mercedes climate control system. It functions by compressing gas refrigerant into liquid and dropping the refrigerant”s temperature below freezing. This liquid refrigerant is then pumped into the evaporator core inside the passenger compartment where the blower motor blows air through the evaporator to cool the air before flowing out of the AC vents.
If the AC compressor fails, refrigerant cannot be compressed and pumped through the AC system and your climate control system and not be able to cool the air coming from the AC vents.
Signs of a Faulty Mercedes AC Compressor
Warm air coming from the AC vents when your climate control is set on cool or a grinding or whining noise coming from your engine when the AC is turned on are both signs that the AC compressor has failed.
Replacing Your Mercedes AC Compressor
The AC compressor only needs to be replaced if it fails and your Mercedes should be inspected by a certified automotive technician before replacing the AC compressor to ensure the AC compressor is faulty. Since automotive refrigerant is invisible to the naked eye, refrigerant leaks are often misdiagnosed as AC compressor failures.
Due to extremely high pressures in the AC system, AC compressor replacement is not a DIY project. Only certified automotive technicians with the proper equipment are able to depressurize and evacuate your Mercedes AC system before removing and replacing the AC compressor, and refilling your AC system with refrigerant. Replacing the AC evaporator, receiver drier, and expansion valve are recommended when replacing the AC compressor as a failed AC compressor often distributes small particulates throughout the AC system that clog the passages in these parts. It is also highly recommended to replace the AC receiver drier whenever the AC system is opened as the desiccant inside will absorb moisture in the air and not be able to absorb moisture in the AC system properly.
View more Mercedes AC Compressors.
Frequently Viewed Together
We found 7 additional part(s) that are frequently viewed together.
Why Buy OEM & Genuine Replacement Auto Parts from AutohausAZ?
Auto parts at wholesale prices is what you will find at AutohausAZ. Have you been searching the web for auto parts for your vehicle? You have come to the right place! Here at Autohaus, we strive to offer low prices on quality replacement parts and providing first rate customer service.
Flat-Rate Standard Shipping
AutohausAZ offers discounted flat-rate Standard shipping on any auto parts orders shipped within the Continental USA.Learn More About Our Shipping
EZ Parts Returns
Your auto parts purchases are protected by AutohausAZ's customer-friendly returns policy.Learn More About Our Returns Policy
3-Years/36-Months Auto Parts Warranty
AutohausAZ offers industry-leading 3-years/36-months warranty on all auto parts purchases.Learn More About Our Warranty
Faster One-Page Checkout
We streamlined our checkout process to get your order on the way faster.Learn More About Our Checkout Process
Discounted International Shipping
AutohausAZ offers 65% discount on UPS shipping options for our international customers.Learn More About Our International Shipping
Customers Love Us
Check out what customers have to say about AutohausAZ on Google.Read Our Reviews on Google
What This Mahle Behr AC Compressor Fits?
Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.