That sinking feeling again...1990 740 GLE sinking brake pedal
By ZVOLV
My 1990 740 GLE 16V has a slightly sinking pedal. I think the front brakes may be doing all the work and the rears are just along for the ride. I have a feeling the master cylinder is the issue, but I would hate to swap it out and have there be another issue. The master is rusty externally and I see a little seepage where it mates to the booster. The front pads are worn down. I gotta check the rears. I have heard of using an infrared temp gun on all four corners. I may try that, but what... Read more

