Leaks around the air compressor can cause fault codes. The dryer end cap can be a common source of faults due to the air leaking causing the pump to over run and become less efficient. A great fix or preventative measure. The compressor will go faulty over a period of time rather than overnight, As the parts get more worn you will notice increase in times taken to lift the vehicle and fault codes will begin appearing.
Air suspension rising slowly or not at all, compressor noisy or buzzing. EAS ambler light on. Suspension level or height errors on the OBD.
C1A20, C1A1364,C50, C1A20-64
A great solution is to replace your plastic end dryer cap with a perfectly machined aluminium end cap. It will never leak again and it comes with a new o-ring just to make sure!
X1 Aluminium End Cap
Fitment information for:
Range Rover 2006-2009
Part numbers for Hitachi Compressors:
RQG000017 RQG000018 RQG000019 RQL500040 RQG500060 RQG500061 RQG500062 RQG500070 RQG500071 RQG500072 RQG500080 RQG500090 RYG500160 LR023964 LR010376 LR045251 LR044360 LR01530 LR015303 UUB504700 VUB504700