Jonasand

So i had fault code 5f98 that left airbag took to long time to fill up.



Noticed if sittning Over night it would sag, used the dishwasher soap method and yes it was leaking.



Ordered 2 new

​https://www.air-suspension-parts.de/...ight::165.html



Installed it, disconnected The axle on both sides and moved them up and down to see it filling them so they would seat correctly, and and the other way so it deflated, connected them and tighten up.





All god, untill When i starten drivning the car, noticed airpump going on often When i starten the car, and got fault code 5f99 right side timing.



So i pulled fuse 81,52 and put The car in the garage to see if it sags.



Its now been 12hrs and messured. Both sides are Exactly the same hight.



Wtf?



If ut was anything before The distribution block for left and right, would t i get code 5f9a, aswell if it would be The sensor.



It must been something Ive done since it moved from left to right side. But weird compressor starts and goes on for a while When its been like 2hrs since last driven When its been sittning now for 12hrs without dropping height.



Fuses are pulled so it couldnt have been filling up overnight.

Also cleared message but pops back up.

Jonasand

Litterly drove the car 24miles for some shopping 15hrs after pulling out fuses "they are still out" put in the garage on level surface.

Nothing has happend, still The same measurement.

Jonasand

donpb

Obviously, something rouge is occurring dynamically. Could be a faulty leveler or dirty connection.

Jonasand

Well wtf i Say... I had 5f98 so i replaced both bags since 5f98 is for left side and indeed it was leaking and sagging.

After that i have had problem with 5f99 The right side. Pulled fuses and let it sit for days, drove it and messured reguarly... None did it drop... So air tight. As you can se it reads signals.


So i took off + om battery, drained The bags completly and put it on and let if fill em.

Days passed and no code, today morning we have minus degrees outsider and it threw The code right away.

Gonna check it When i get off Work

seanjordan20

Clean and lube your height sensors then reset the system once installed it should clear up if not then need to be replaced.

Jonasand

Already cleaned up all and did reset by letting air out letting it fill it up itself.

Have it in now for stage 2 tune and hopefully they can reset it.

Otherwise im gonna try switch places of sensors and see what happens.

seanjordan20

What? Are you saying you thought you reset the system by letting the air out and letting it refill?