Evening,
Just had the 160 000 km service done. Timing belts changed 18 months ago so all good there.
During the time i've owned the car (2006 2,7 TDV6, since April 2016) there have been numerous orange suspension lights on the dash, and the occasional red suspension light. 9 times out of 10 the orange and red lights disappear after a restart and primarily appear on short journeys and when the car has less than a quarter tank of diesel.

Anyway, service done for a princely sum of 650€ and all fault codes cleared.
Mechanic tells me the air suspension is leaking somewhere but they couldn't find it, and they could try harder but it's probably 2 hours worth of work @ 100€/hour. He recommended the fix of changing the compressor. It's only 1500€.
I found this odd as he said they couldn't find the leak....

The fault codes are as follows and i can presume that 2 of them relate to blanking of the EGR's (which hasn't been done) and have all accumulated over the past year.
Are any of these urgent to be fixed, the indie wasn't too concerned for urgency. (Land Rover - Jaguar garage)

p140d - EGR circuit control b range / performance

p02a6 - cylinder 4 balance, fuel trim at maximum limit

p02af - cylinder 6 balance, fuel trim at minimum limit

p0625 - generator field terminal, circuit low

p0404 - EGR control circuit range / performance

p120f - fuel pressure regulator excessive variation

Relating to suspension:
c1a13 - pressure does not decrease when venting gallery

u0416 - invalid data received from vehicles dynamics control module

c1a20 - pressure increases too slow when filling reservoir

many thanks 2019 RRS P400e Autobiography
2014 RRS 3.0 TDV6 HSE Dynamic
2006 RRS 2.7 TDV6 HSe
Alfa Romeo Guillietta 2.0 JTDM 2011
Mazda 3 1.6 2010
Subaru Impreza 2.0 WRX 2005

Blank the EGR's. Very simple on yours. Shouldn't need any software updates.

Changing the compressor is not going to fix a leak in the system - if the leak is not fixed (not hard to find) the old or new compressor will run more than it should and wear out. 07MY RRS TDV6
Arctic Frost
Aspen Interior

Disco 3 sister site has a number of threads on how to find leaks. Grab a coffee and do a search  Visitor from fullfatrr.com
* GONE. 2012 RR Sport HSE SDV6 Orkney Grey. Now being piloted by RRSTDV8
* GONE: 2011 4.4 TDV8 Full Fat. Amazing piece of kit.
* Current. 1974 Lightweight 2.25L petrol. Old skool
* GONE. Freelander GS TD4 Manual MY2013. Orkney Grey with privacy, cold and clearview packs, armrests (a must!) and a spoiler.
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* 1949 80" in family since 1975

Thats pretty much what i told the mechanic. You couldn't find the leak but a new compressor is the way to go???
Will check the cap for the usual crack between the two pipes.
Did a but if research over tje past few days.
Cheers 2019 RRS P400e Autobiography
2014 RRS 3.0 TDV6 HSE Dynamic
2006 RRS 2.7 TDV6 HSe
Alfa Romeo Guillietta 2.0 JTDM 2011
Mazda 3 1.6 2010
Subaru Impreza 2.0 WRX 2005

Sounds like you need to find a different mechanic too. Find a LR specialist 👍 Visitor from fullfatrr.com
* GONE. 2012 RR Sport HSE SDV6 Orkney Grey. Now being piloted by RRSTDV8
* GONE: 2011 4.4 TDV8 Full Fat. Amazing piece of kit.
* Current. 1974 Lightweight 2.25L petrol. Old skool
* GONE. Freelander GS TD4 Manual MY2013. Orkney Grey with privacy, cold and clearview packs, armrests (a must!) and a spoiler.
* GONE. Range Rover Classic '93 200Tdi Factory fit
* 1949 80" in family since 1975

The garage is a Jaguar / Land Rover specialist.
but perhaps there are others out there..... 2019 RRS P400e Autobiography
2014 RRS 3.0 TDV6 HSE Dynamic
2006 RRS 2.7 TDV6 HSe
Alfa Romeo Guillietta 2.0 JTDM 2011
Mazda 3 1.6 2010
Subaru Impreza 2.0 WRX 2005

The fact it's not building pressure and can't vent properly says to me that the issue is probably one of the valve block, do you come out to the car and find it's leaning or sat at a funny angle ?

As a side note, I would be worried about the fact two cylinders are running at min/max trims too.

It may be slightly leaning lower on the rear left hand side, but ever so slightly. No red marks on the 4x4 info screen tho.
Will be getting underneath tonight to check the air compressor dryer cap.
EGR valves will be blanked in due course.

am reading up on the cylinder fault codes.
All of the codes posted are what have occurred since April 2016. Would any of these possibly right themselves?
also need to get myself an OBD code reader.

cheers 2019 RRS P400e Autobiography
2014 RRS 3.0 TDV6 HSE Dynamic
2006 RRS 2.7 TDV6 HSe
Alfa Romeo Guillietta 2.0 JTDM 2011
Mazda 3 1.6 2010
Subaru Impreza 2.0 WRX 2005

Might be worth disconnecting the battery overnight, that will stop the system trying to self level and point you at the corner that is leaking (if it is a corner)

It would be worth getting the codes read again in a few weeks and see which if any have returned

Just measured centre hub cap to wheel arch. Car has been stood still in access mode for 22 hours.
On a gravel parking area.
Front left, front right and rear left = 40cm
Rear right = 44cm 2019 RRS P400e Autobiography
2014 RRS 3.0 TDV6 HSE Dynamic
2006 RRS 2.7 TDV6 HSe
Alfa Romeo Guillietta 2.0 JTDM 2011
Mazda 3 1.6 2010
Subaru Impreza 2.0 WRX 2005

You'll want to leave it at normal height as the car can't drop much more when it's in access height.

went out this morning and it looks like the rear left has dropped a bit more than the others. in order to check the valve block (?) and inspect for the hairline crack between the 2 pipes - as is the common problem, am i right that the pump is directly underneath the rear passenger door, behind the black face plate?`

cheers 2019 RRS P400e Autobiography
2014 RRS 3.0 TDV6 HSE Dynamic
2006 RRS 2.7 TDV6 HSe
Alfa Romeo Guillietta 2.0 JTDM 2011
Mazda 3 1.6 2010
Subaru Impreza 2.0 WRX 2005

The rear left corner has dropped, that means that you've got a leak somewhere between the valve block and the rear airbag, not the compressor.

If the compressor was leaking then the car wouldn't go down at all with the battery disconnected.

Ok.
Think i might not be clear enough. Have read that many times the faults with suspension dropping are down to a leak on a cap


Thinking if i check this first. As it seems to be easiest to check ans easiest to fix
Is this located directly under the rear left passenger door

Thanks for the replies. Hopefully one day i can pay it forwars. In the meantime if you have any questions about cooking or Rugby. I can answer 😉 2019 RRS P400e Autobiography
2014 RRS 3.0 TDV6 HSE Dynamic
2006 RRS 2.7 TDV6 HSe
Alfa Romeo Guillietta 2.0 JTDM 2011
Mazda 3 1.6 2010
Subaru Impreza 2.0 WRX 2005