AC Compressor Replacement Estimate for BMW 645Ci

BMW 645Ci AC Compressor Replacement costs $1028 on average. Following is a breakdown of the labor and parts estimates.

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$1027 to $1071
Labor: $308 -$352
Parts: $719
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CarServiceYourMechanic PriceShop/Dealer Price
2005 BMW 645CiV8-4.4LService typeAC Compressor ReplacementYourMechanic Price$1084.94Shop/Dealer Price$1390.97 - $2057.53
2004 BMW 645CiV8-4.4LService typeAC Compressor ReplacementYourMechanic Price$1070.56Shop/Dealer Price$1373.54 - $2029.71
Show example BMW 645Ci AC Compressor Replacement prices
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Parts required for a BMW 645Ci AC Compressor Replacement

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18 years of experience
Fast and responsive. Let me know the problem and solution. Will be using Dave for future services
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283 reviews
27 years of experience
He seems professional. I paid for the lights to be addressed and they are all still on including a low engine oil light. He said he would return to check it out further after his next appointment but I did not hear back from him. I was told by BMW that the power steering fluid needs to be drained, flushed and refilled. He sucked it out with a hose twice and this will not ensure that the oil that was accidentally placed in there would be completely removed. I am no mechanic but I am going off of what BMW told me. I wanted to get a lot more work done. I want all the lights to be addressed and fixed so I started with the check engine lights to be looked at and not just reset. I want everything to be fixed. Thank you
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66 reviews
8 years of experience
Wonderful work
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7 years of experience
Extensive knowledge on my vehicle (BMW) and had all the proper tools to perform the job...
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All about AC Compressor Replacement

An AC system has many components: compressor, condenser, receiver dryer, evaporator, and hoses. The compressor, the “heart” of the car’s air conditioning system works like a pump taking refrigerant, ( R-12 Freon in older cars, R-134a in 1995 and newer cars) and pressurizing it, passing it along to the evaporator. The AC compressor has several moving parts (including pistons and valves). These internal parts can fail, causing the AC compressor to stop working. It is common for the internal parts of the compressor to come apart and disperse metallic debris throughout the system. Consequently, it is a requirement to replace the orifice tube and the receiver dryer when replacing the compressor since some of the debris may have ended up there. For an AC compressor to work, it needs a clutch, bearing, and an electrical connector. The clutch is driven by a drive/serpentine belt, which engages the compressor when you switch on the AC. The clutch can burn or the bearing can fail. If the bearing or clutch have failed, it is recommended that the compressor be replaced. Sometimes replacing the entire compressor with a remanufactured one can be cheaper than replacing an individual clutch or bearings. It is also common for the seals in the AC compressor to go bad. The compressor may start leaking refrigerant and/or the AC oil. If the seals no longer hold, you will need a new compressor, as the seals cannot be replaced. A compressor may also fail if there is sludge or debris in the air conditioning system. If there is sludge or debris, the hoses, evaporator, and condenser should be flushed to get rid of the contaminants. When it is not possible to flush the parts, you may need to replace those parts.

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