ChrisGa23
Expert Expediter
Anyone know much about brakes ? Just had replaced master cylinder on the sprinter. Pedal would go almost to the floor and you could pump them a time or two and they were fine. After the repair they were fine. Now they doing the same. They checked all brakes at shop everything looked good. Pedal goes way down almost to the floor pump them a time or two they are fine. You can sit still pump up the brakes and hold. 3 seconds later the pedal falls a few inches and holds. I checked the fluid its good. I'm thinking could be air in the lines or maybe a bad caliper ?