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Greetings.

I replaced the bags at the rear of the vehicle. Both parties. The driver's side sank overnight; however, it is presently level, while the passenger side remains about one inch higher.


Do they operate autonomously from one another? I have been informed that calibration is necessary; yet, I am uncertain how simultaneous operation contributes to this process. Could someone provide me with information? Thank you very much

There is a single sensor located above the differential at the rear.

You did not purchase authentic Mercedes replacements, correct?

Merc requested £600 per unit. Arnott was priced at £279.99 and, according to reviewers, is superior.

Indeed, I am aware of the existence of the single sensor. However, they can ostensibly be calibrated in terms of pressure. To achieve uniform elevation, etc.

I will interpret it as an affirmative response. It is only 9mm off. Maximum of 15 millimetres. I presume the star system use the Romess tool will deflate one bag until equilibrium is achieved, then save it.

NOTE: My S211s were equipped with complete Airmatic, thus this may or may not apply to models with just rear self-leveling. Is the vehicle stationed on a completely flat surface during your inspection? My driveway has a little incline, both longitudinally and laterally, and I saw a minor discrepancy while parked on the incline following my installation; nonetheless, everything was satisfactory on a perfectly flat surface. Terry Gates completed the task, ensuring it was executed correctly.

Indeed, it was noted during the MOT today. It was neither a failure nor just advisory. It was only referenced. Upon inspection, I saw the situation was indeed significant. I was completely unaware. However, a competent MB expert in my vicinity has shown their ability to calibrate. I presume they released air from the overinflated bag and then established a level. At just £95, I am pleased to pay this amount, especially given the substantial savings I achieved by creating the bags myself.

I am not well-acquainted with Star and have never used the "developer" component; nonetheless, since there is no sensor on the individual bags, I am uncertain what settings may be configured.
As previously said, a flat surface is required; mine 55 consistently seemed uneven at home due to a little slope on our driveway, with a discrepancy of around 10mm.

I surmise they can extract air from a single bag to equilibrate the pressure. Subsequently, designate it as the accurate pressure. That is my conjecture, however...