Hi, looking for some inspiration!
My 2007 2.7 has got the C1A20-64 code.
I have had the car about 5 weeks and bought it privately. It has had a ton of work done and receipts to back it up. The warning bong first came on last Friday and message 'normal height only'. Car wouldn't raise or lower but I switched off ignition and turned back on and all was well. On Sunday, after a 80 mile drive, same happened again and on turning ignition off/on it disappeared again. On another members advice, I got the codes read and above code appeared. On trawling through old receipts, I came across one for £1030 from August 2015 for a replacement compressor, tank, relay and software upgrade. The part number was LR061663. The cover looks new so assume it is the latest AMK unit?.
However, is this likely to have failed already or is there something else I can look at?
Many thanks in advance,

Gary.