A possible solution will be to use a battery charger to recharge the battery say every 2 or 3 months. - If not, check the fuse for the suspension (the one in the engine compartment - its a yellow 30Ampere block type fuse). the reason for this could be that the compressor takes to long to raise the suspension and then it blows the fuse.
Teardown of a failed Hitachi air suspension compressor from a Land Rover Discovery 3.- - - - - - - - - - - -Due to factors beyond the control of FixItSam, it Discovery 3 Anti Roll Bar Bush Rear x2. ★★★★★ (3 Reviews) £15.39 Inc. VAT. £12.82 Ex. VAT. LR015336X2. Items 1 to 12 of 72 total. 1. 2. Buy Land Rover Discovery 3 L319 Suspension Parts at JGS4x4 Land Rover Parts and Accessories.
In this video, Doug, our Land Rover Master Technician, will use the iLAND Diagnostic App to perform a GEMS closed throttle position reset, a function that must be done on Range Rover 4.0/4.6 P38, Discovery and Defender with GEMS engines. iLAND, advanced diagnostics for your smart phone, is the next generation diagnostic app for Land Rovers!
VUB504700G OEM Hitachi Air Dryer Unit. £165.95 £199.14 (inc. VAT) Discovery 3 4 Hitachi Suspension Compressor - Not suitable for 2011 models onwards AMK. . 84 356 416 324 307 49 43 474

land rover discovery 3 air suspension reset