I recently purchased a used 2008 2.5i Liberty with about 51000kms on the odometer. I'm generally happy with the car, except that the brakes don't feel that great. I'd describe them as a bit mushy and requiring more pedal force than I'd prefer to stop the car. Digging through the service logbook, I think the brake fluid is 2.5 years old. Is it likely that things will improve a lot with a brake fluid flush? Is it that difficult to do? I've bled bicycle disc brakes plenty of times. Basically the same principle following the procedure in the service manual I'm guessing.
Would it help to change brake pads to ones with a higher friction coefficient than the OEM pads? The rotors front and back have very mild glazing and scoring, and the front pads have a <1mm lip close to the edge and close to the centre of the rotors. The steering wheel will wobble ever-so-slightly if I brake with my hands just off the wheel at highway speeds. But I can't really feel it with my hands on the wheel. Do I need to replace/machine the rotors if I get new pads? Are there any recommendations for pads (and rotors) if needed? Pad/rotor wear won't be a big issue for me. I don't commute to work, so my kms per year are relatively low.
Thanks.