Strange suspension issue L322 2002

Hi guys L322 2002 TD6
Been absolutly fine (quiet!) however has started showing suspesion inactive while leaving shift height control illuminated but will not change height, I have read the errors and will list below and what I think the reson is and any aditional help and input and weather I am right or wrong as always is greatly appriciated, I post here 1 for help but 2 for a learning curve for myself and others in the future.

Height calibrated
Tank pressure 11.72 bar fills quick no loss of air pressure over 10 minute period.
Pump temreture raises to 70 degrees when pumping but drop quick fills quick.
When changing heights sometimes have noticed left side raises quickr than right.
Not allways but sometimes in the morning the front drops half way, no air bag leaks have checked more than once.
Error read "air pressure static when filling"

So as to the above I am looking at a blockage when filling ? I am on the valve block for the front or the driver what do you guys think ?
Is the valve block easy to get to and where
Where are the drivers for the valve blocks ?

Many thanks for reading and replying either or both as always greatly received.

I would bet there is an air leak that you have not found on one front air bag

Datatek said:

I would bet there is an air leak that you have not found on one front air bag

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Hi mate, be an easy one but have looked and looked and looked and when driving she sits the same no nose dives or raises plus the error of air pressure static suggests a blockage more than a leak.
I am not going coils I may add !

Front and rear valve blocks are behind the wheel arch plastic front & Rear right side.

dazer200 said:

Tank pressure 11.72 bar fills quick no loss of air pressure over 10 minute period.

Click to expand...

dazer200 said:

Error read "air pressure static when filling"

Click to expand...

Not sure these make sense

J

marjon said:

Front and rear valve blocks are behind the wheel arch plastic front & Rear right side.






Not sure these make sense

J

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Superb mate thank you, what do you reckon ?

Will the fault clear? then all works fine for a while? Do you have the code for the fault?

Have you changed the compressor (so know its good) and was the drier changed at the same time?

The desiccant is known to breakdown and form a powder that gets in the valve blocks.

I would first get access to the blocks and check connectors are all clean. If you are sure you have no leaks.

J