cost to replace the brake booster. poor design cause the sensor is inside.
What is your question?
the bas/esp light on . found out the brake sensor is in the boster for this 04 ml350. understand these go bad alot, but dont know why they moved the sensor from above the brake paddle to inside the booster.. brakes seem to be working fine.
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$40 dollars. you remove the master cyl. bleed the brakes too.. 40 . where are you located at?