Maat said:

Hi all,

The air suspension dropped completely this morning on this P38 2.5dse auto from 1999. I've been trying all the tricks in the nanocom, but I can't get it to raise back. Compressor is on, according to nanocom. I just accidentally noticed that the battery voltage is 13V at best with the engine running and 12.8V with engine off. This is an issue that needs fixing either way, but can this be related to my problem?

Kind regards,
Matt

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feyniriel said:

To add about the same P38: we have soldered the wires on one of the white connectors (the other one didn't look as corroded). The fault codes before erasing them were:

Front left sensor is out of range
Rear right valve permanently stuck closed
Invalid fault

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Datatek said:

The alternator voltage and the EAS problem are not related. To cure the low alternator output fit a new regulator from Mobiletron, I can't access the part number at the moment but it has been posted many times.
If the compressor is ON, is it actually running? If it is running, is it producing any pressure? Check by removing one end of the blue pipe in the EAS box and putting a finger over the end with it running. You should not be able to stop the air. If the compressor has failed, it's likely there is a leak, probably an airbag if they are more than 8 years old.
What faults are recorded on Nanocom for the EAS?

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Maat said:

Compressor is running, but if I try hard enough I am more or less able to stop the airflow. There are currently no faults on Nanocom for the EAS.

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Datatek said:

So the compressor needs an overhaul.

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Maat said:

Tomorrow I'll let the car running with the door open for 15+ minutes to see if it builds up enough pressure. At the last workshop I worked at the compressor must have worked at around 8 bar, but if I tried, I could stop the airflow with a finger at the tip of the airline. How hard is our EAS compressor supposed to operate?

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