having some strange issues with my 2006 L322. i changed the compressor as it had a previous fault C1A20-64, After fitting the new one i had nothing at all, no compressor working and no lights on the height selector, was advised to do a hard reset but this has only made things worse. i now have lost communication to the ride height control module and have a list of faults.

U0400-68 IPC - instrument cluster control module- invalid data received(event trouble code).
U0132-87 IPC - instrument cluster control module- lost communication with ride level control module
U0132-87 FLM - Front lighting control module - Lost communication with ride level control module
0x008A VDM - vehicle dynamics control module - Air suspension system CAN error

have also noticed i have no flashing lights on the dash when the indicators are on or hazards and no clicking noise either

have replaced the battery but no change, really starting to drive me up the wall now as the car was left to me by a family member after they passed

any help would be really great

Is this a late td6 ?

2006

If it is a td6 I had similar problems with lack of indicator lights also had flickering dash lights I replaced LCM and clocks and it fixed it but unsure if any of that would tie in with air suspension but alot of these systems talk to eachother

Perhaps try disconnecting the instrument cluster and see if you have any different codes

When you changed the clocks. Did they need to be coded or was it just plug and play?

I'm not sure as I had a friend do the work I think the clocks should be plug and play

As mentioned above, I would be checking the LCM. they commonly suffer from water ingress issues and can cause many spurious faults. Happened on two occasions with my Td6 during my ownership.