[Saffiyah]

Hi guys

My 520d G31 2019 estate was sitting in the workshop and has been lifted with a jack, now the rear end has dropped and when I go over humps or bumps it makes a loud thudding noise, is there a way to reset the self level air suspension.

Your help is much appreciated

 

[Clooney999]

Hi guys

My 520d G31 2019 estate was sitting in the workshop and has been lifted with a jack, now the rear end has dropped and when I go over humps or bumps it makes a loud thudding noise, is there a way to reset the self level air suspension.

Your help is much appreciated

Not sure its a resetting problem to be honest, I had a similar problem with my F11 after it was on a ramp, it turned out to be a leaking rear air spring! coincidently when jacked up! and afterwards discovered jacking up sometimes opens up a very minor leak that wouldn't otherwise notice in everyday driving into a bigger more affecting one! They usually start leaking around the 80 - 100k miles mark on F11? E

 

[Alan G]

As said above the air-bag might have a leak.
Also could be the level sensor.
A code scan should tell you.