Is this a 2016 or older model s? if so there is bulletin about the system must be filled with nitro
EAS is the Electronic Air Suspension system available as an option to Coil Suspension on the Model S from SOP 2012 through to April 2016. The possible configuration values for Electronic Air Suspension are the following: Standard or Plus.
EAS is a Nitrogen closed system, air is only drawn into the system when air mass in the reservoir/system is low.
The Electronic Air Suspension (EAS) system is filled with nitrogen and if a leak is present, the system will compensate by drawing in normal air from outside. Ambient air expands more than nitrogen and may cause the system to go over the expected maximum system pressure.
- Test drive the vehicle and listen for air venting to atmosphere.
- If air is heard venting into the atmosphere, then this is the issue.