Some time ago, I purchased a so-called FAS kit from a Spanish company.
This system allows you to continue using the Electronic Air Suspension (EAS) even in the event of a failure of certain EAS components, including:
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The compressor
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Height sensors
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Valve block
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EAS ECU
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Timer relay
The main goal of the kit is to allow manual control of the air suspension by supplying air directly to the individual air springs or the air tank using an external compressor.
How the FAS Kit Works
The kit consists of five Schrader valves, which means the system can even be operated using a simple hand pump or foot pump if needed. This makes it an extremely practical solution when travelling off-grid or in remote locations.
In my case, the air suspension has been fully rebuilt and is currently working perfectly. However, when venturing further away from civilization, this setup provides an extra safety net — a way to keep moving even if the factory EAS electronics decide to call it a day.
Limitations
Of course, if an air spring itself ruptures, the trip is over regardless. That’s the one failure scenario this system cannot mitigate.
That said, since my suspension airbags are new, I don’t expect any issues anytime soon.
Final Thoughts
For anyone running a Range Rover P38 with EAS and planning remote travel, a FAS kit is a smart addition. It doesn’t replace proper maintenance, but it does provide peace of mind — and sometimes, that’s exactly what keeps an adventure going.
