Thread: Ride level control module C1A13-64 Pressure does not decrease when venting gallery

The Hitachi unit is pretty bulletproof. The comp motor is protected from overload so unlikely to burn out. The issue is replacement compressors are most likely cheap copies. Stick with the same brand as whats fitted.

My suggestion is to do the kit, order the one from X8R with the alloy dessicant canister cover plate, new piston ring and all gaskets. Your dessicant is most likely gone to dust and now blocking the valve blocks at each corner, so they may need a cleanout too.

Mines now 10 yo and I've done only one rebuild with the kit as a preventative meadure and no issues before or since.

Like Eric said, though in my case the issue you have was from blocked filters in the desiccant canister from the desiccant turning to powder. I’ve had it twice now. The first time I did the rebuild and replaced the desiccant and filters from the kit.

The second time I removed the degraded desiccant beads and washed the filters, dried the desiccant out in the oven and reassembled. Another two years from it. That said Murphy’s law says tomorrow it will fail again.

Like the guys have said Rdenyer, you need a new compressor rebuild filters, beads etc, mine failed/ throwing same error codes just before the xmas holidays, with big trips coming up I ordered an cheap ebay Hitachi type and it was direct plug and play. and has been going strong over the last few trips.

Air Suspension Compressor Pump For Land Rover Discovery 3 Hitachi Type LR023964 6941503307842 | eBay

quick delivery and communicates quick enough

But i have also ordered a rebuild kit too. Cheers Peter

Thanks - that seems a good plan and that one on EBay seems cheap enough.
Anyone got any feedback between XR8 rebuild kits and 4x4airseals rebuild kits ?

Originally Posted by rdenyer

Thanks - that seems a good plan and that one on EBay seems cheap enough.
Anyone got any feedback between XR8 rebuild kits and 4x4airseals rebuild kits ?

Both good but imho 4x4 is most dedicated and specialised to only this air part of the car and covers the whole bits and pieces in the comp and air block valves.

Lots of good videos too most helpful if you have questions also.

Don’t forget to pull off the electric motor cover and blow out dust and elec cleaner spray it like I did not. Doh! Probably equally as important in a old Hitachi unit. There’s a video for that also.