The air conditioner compressor is a crucial component in your 2008 Nissan Altima's cooling system. It's responsible for compressing and circulating refrigerant throughout the AC system, enabling it to cool the air inside your vehicle. When this part fails, your car's air conditioning will stop working effectively, making replacement necessary.

Identifying a Faulty Compressor

Signs of a failing AC compressor in your 2008 Nissan Altima include:

  • Warm air blowing from the vents
  • Loud noises when the AC is turned on
  • Visible damage or leaks around the compressor
  • AC clutch not engaging

If you notice any of these symptoms, it's time to consider replacing your compressor.

Replacement Options

For a 2008 Nissan Altima, you have several options when it comes to replacing the AC compressor:

OEM Compressor

An Original Equipment Manufacturer (OEM) compressor is identical to the one originally installed in your Altima. While typically more expensive, it ensures perfect fit and optimal performance.

Aftermarket Compressor

Aftermarket compressors are often more affordable and can offer comparable quality. Brands like UAC, GPD, and Four Seasons produce reliable compressors for the 2008 Altima.

Remanufactured Compressor

A remanufactured compressor is a rebuilt OEM part. It's a cost-effective option that often comes with a warranty.

Installation Considerations

Installing a new AC compressor is a complex task that requires specialized tools and knowledge. Here are some key points to consider:
  • The AC system must be properly evacuated before compressor removal
  • New O-rings should be used on all connections
  • The system must be recharged with the correct type and amount of refrigerant
  • Other components like the receiver drier and expansion valve should be replaced simultaneously

Due to the complexity and potential safety hazards, it's recommended to have a professional mechanic perform this replacement.

Compressor Specifications

The 2008 Nissan Altima typically uses a DCS171C style compressor. Key specifications include:

SpecificationDetail
Pulley Groove Quantity6
Refrigerant TypeR134a
Clutch IncludedYes
Oil TypePAG 46

Always verify these specifications with your specific vehicle's requirements before purchasing a replacement compressor.

Cost Considerations

The cost of replacing your Altima's AC compressor can vary significantly. Factors affecting the price include:

  • Choice of OEM, aftermarket, or remanufactured part
  • Labor costs in your area
  • Additional parts replaced during the job

On average, you can expect to pay between $600 and $1,000 for parts and labor combined. Getting multiple quotes from reputable mechanics can help ensure you're getting a fair price.

By understanding the importance of the AC compressor, recognizing signs of failure, and knowing your replacement options, you can make an informed decision about maintaining your 2008 Nissan Altima's air conditioning system. Remember, proper installation is crucial for the longevity and efficiency of your new compressor.