stmcknig
Full Access Member
- Joined
- Jun 11, 2012
- Posts
- 106
- Reaction score
- 1
Amber alert Normal Height Only
Fault code pulled with Faultmate is C1A20 - pressure increases too slow when filling reservoir (Intermittent algorithm based failure)
It seems most of these are a dying compressor - this in my 07 LR3 which to my knowledge has the original unit. I know it may be the dryer too but I'd probably donate the cash for replacement towards a new AMK unit in place of the current Hitachi. Some say the AMK has no dryer to get blocked - anybody know if so ?
I checked the reservoir for signs of leaks but don't note any - is there an expected reservoir/gallery pressure when the car is off and asleep ? I assume it doesn't depressurize the reservoir when not running so if I have good pressure it would confirm I don't have a leak and it's the compressor that isn't up to the blowing required ?
Seems to be more likely to throw the code on a warm day and only after about five minutes running time. I can hear the compressor running so it's not dead which makes me suspect it heats up and gets shut down by the electronics before it has finished.
I already had the new relay and software update in place.
No other fault codes logged and the height doesn't drop overnight.
Any second opinions welcomed.
-- Stuart
Fault code pulled with Faultmate is C1A20 - pressure increases too slow when filling reservoir (Intermittent algorithm based failure)
It seems most of these are a dying compressor - this in my 07 LR3 which to my knowledge has the original unit. I know it may be the dryer too but I'd probably donate the cash for replacement towards a new AMK unit in place of the current Hitachi. Some say the AMK has no dryer to get blocked - anybody know if so ?
I checked the reservoir for signs of leaks but don't note any - is there an expected reservoir/gallery pressure when the car is off and asleep ? I assume it doesn't depressurize the reservoir when not running so if I have good pressure it would confirm I don't have a leak and it's the compressor that isn't up to the blowing required ?
Seems to be more likely to throw the code on a warm day and only after about five minutes running time. I can hear the compressor running so it's not dead which makes me suspect it heats up and gets shut down by the electronics before it has finished.
I already had the new relay and software update in place.
No other fault codes logged and the height doesn't drop overnight.
Any second opinions welcomed.
-- Stuart
