Hi i have pug 307 sw hdi... about month ago, i got warning sign "brake fluid level low", went to dealer, they have changed front brakes,they were worned, and changed brake fluid, because car is 2 years old... today i checked under the hood, brake fluid is not on the maximum (i checked after service, it was) it is about one cm below max. is my car leaking brake fluid? they checked whole system and there was nothing wrong, but where did fluid go? thnx brkiX