W222 suspension issues.

[AWAS]

Hi guys just brought my 2017 w222 exec model premium plus. Not been a week realised the ride is bumpy sometimes. suspension goes up and down correctly. When parked on my slanted drive, driver side rear sits abit low.. car went into dealers today they said nothing points to a fault engineer drove it seems fine... seems abit bumpy to me than my previous 7 s classes...
Any ideas guys ?