Waiting for the dealer to diag my suspension fault and was looking around... atlantic british overs the entire compressor casing
https://www.roverparts.com/suspensio...arts/LR140034/

Has anyone done this, i got to mine easily but i am not sure how to disconnect the air plug.

Also do we think the system will need to be re calibrated? I know the IDtech3 or whatever tool can do air suspension but im hoping to not need one. At the cost of that plus the compressor it might be cheaper to just let the dealer do it.

 

Are you sure you need the entire compressor replaced?

I had suspension fault code and found the expansion chamber was cracked and leaking air. It’s a common problem.

Circled part is the expansion chamber, bought it off of Amazon. 75 bucks.

 

Yeah I have done this job. It is not difficult to do. The compressor is behind the 3rd row seats, under the storage area. You have to remove the tub to get to it. Book time under warranty is around 0.7 hours. Just remember to fully lower the suspension before you start.

 

Mine had this issue. It was a $1700 fix I believe.

 

Here's the full removal/install instructions if you need them.

 

Hi LR Forums,
I heard the air compressor pop and blow air. I was about 30 miles from home, and drove it home at the lowest position with squishy suspension. I opened up the compressor and Yes it was the expansion chamber. I followed the instructions and replaced the expansion chamber air fittings with LR parts. I did NOT replace the airline connector. It all worked fine, fully functional, and suspension error cleared immediately. It worked fine for the last 1 month, no issues.

I woke up this morning and the car is sagging, mostly in the rear of the car (D5), but all the way down again. It also has a suspension fault, but I do not have a scanner to see exactly what it is.

When I get in the car, I can select any height, and it works and stays. It does throw a suspension fault immediately after you start up the car. When it sits for hours, or over night, the car lowers again, clearly a slow leak.

I removed the covers to the air compressor again, totally open, I sprayed the expansion tank, air air fitting, air lines in the cargo area of the D5, and even the air line connector with soapy water, and no bubbles. I cannot find the leak.

Any recommendations?
Could the air line connector be leaking...even though it does not blow bubbles?
Could some other part of the air suspension be damaged by driving home with it all the way lowered?
Other?
Can I get my D5 scanned to see the fault that comes on immediately?
Troubleshoot steps?
Thanks for your help !!

I opened up the

 

There’s a valve block that is outside of the compression housing. There are no current YouTube videos showing exactly where it is, but on the discovery three. It was above the rear transaxle. A guy basically spliced in his own tubing with Schrader valves for each air shock.
Of course, JLR moved the compressor from under a spare tire inside the rear of the vehicle to under the frame behind the rear wheel and now under that small rear compartment where you access to lower the spare under the vehicle.

And other videos for other older Land Rovers they talked about a rebuild kit with all new gaskets for the valve block, but I’m sure it’s just easier to buy a new one. (They seem to be plastic now versus the old ones that were rebuilt were metal.) You know it’s the right one because it has so many connections compared to the front because you’re going to have incoming from the air compressor to outgoing for each air shock and an out going to the front valve array. (I think the front is simply one incoming in two outgoing.)

Let us know if you figure out exactly where it is. I just ran across Land Rover’s instructions on access and then replacing the whole air suspension compressor assembly as to the other thread (Here) where the guy took photos replacing it is formatted weird so it won’t print correctly.

the video is

 

CAUTION:

Do not reuse the air line connector. Always install a new air line connector every time it is released.

Unfortunately, I didn’t see this document in this thread until today, so I didn’t order that part yet.

Here’s the document.

https://landroverforums.com/forum/attachments/new-discovery-v-51/anyone-replace-air-compressor-themself-117449/air-suspension-compressor-57458d1686885235

 

I don’t know why they link Land Rover three has related threads because it’s not.

This is the repair indicated of the expansion bow for the Land Rover L462 series also known as Land Rover Discovery V.

IMPORTANT EITHER I MISSED IT OR HE DIDN’T MENTION IT, BUT LAND ROVER‘S OWN INSTRUCTIONS ON REMOVING AND REPLACING THE SUSPENSION AIR COMPRESSOR SUGGEST NOT REUSING THE AIR LINE CONNECTORS
LR083989 & LR041295


https://landroverforums.com/forum/ne...ressor-123493/