Brake booster pressure sensor error on Mercedes E Klasse hybrid

Sounds familiar. I had a similar issue with my Skoda Octavia after a brake fluid change. The ABS system went haywire, and the brake pedal feel was awful. Did you recently bleed the brakes

The brake fluid was recently replaced. If incorrect bleeding is the cause, what specific issues arise within the ABS system and hydraulic brakes And could this directly trigger the pressure sensor fault

In my case, air trapped in the ABS modulator caused all sorts of problems. The brake pedal felt spongy, and the ABS activated erratically. I'd suggest taking it to a workshop with diagnostic tools that can properly bleed the ABS system. They can also check if the sensor itself is faulty, but I'd bet on the bleeding issue first.

It appears improper bleeding was indeed the root cause. After a professional brake bleeding procedure, the error is resolved, and brake performance has returned to normal. The final repair cost was 90€. I appreciate your assistance.