I requested my dealer perform a brake flush/ fluid change at 3.5-4 years. He suggested it wasn’t necessary as I only had 5+k miles on the M3W. I insisted. Anyone else have similar experiences?
probably the most underperformed necessary maintenance. You do need to factor in the humidity where you live as well as DOT 3 or 4 fluid is hydrophilic and will absorb moisture which leads to lowering of the performance of the fluid.
