Replace Air Suspension Compressor - Range Rover Sport or LR3 (Suspension Fault)

▼Parts and Tools Listed Below▼
How to replace a EAS air compressor assembly on a Range Rover Sport or LR3 2005-2009 to alleviate the "Suspension Fault Normal Height Only" error. Your suspension fault may be caused by a faulty air compressor if you have the fault code C1A20 "pressure increases too slow when filling reservoir".

This replacement was one of the very first repairs I did on my car, and was required when the vehicle was about 7 years old. It may be possible to complete the repair for free or around 30$ if you buy a air dryer rebuild, but it's likely you will need to replace the entire assembly to alleviate your problem.

Scanner that can read LR codes (like C1A20): https://amzn.to/2JEBR2p

Parts required:
Original Hitachi Compressor (best option, more expensive): https://amzn.to/2U5JSiM
Aftermarket compressor assembly (cheaper, shorter life): (https://amzn.to/32nBGiz)

I recommend getting a OEM Hitachi compressor because these will last about 70K miles, these will be $500-700 unfortunately, part #LR023964.

Tools required:
13mm socket or wrench (for battery terminal)
10mm socket or wrench (for plastic housing)
4mm Allen key (for the 3 bolts holding the assembly to the bracket)

Tool set I use that contains all above tools (https://amzn.to/2JL8ADq)

Optional items:
Compressor rebuild kit (https://amzn.to/2JJwvDg)

Works with RRS or LR3 MY 2005, 2006, 2007, 2008, 2009

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