[Es2] brake pedal feel

Ben Klumper bklumper at mdbworld.com
Mon Jul 28 12:57:57 PDT 2008

Anyone have any suggestions as to how I can increase initial 'bite' and decrease pedal effort when braking? The brakes have excellent stopping power but it requires quite a bit of push. The brake pedal doesn't have a lot of travel and doesn't feel spongey. It's quite hard in fact. Feels like not enough hydraulic assist. The pressure accumulator is new from three years ago. Front brakes are 996 calipers w/ stock Porsche pads (Pagid?) over 323x30 rotors. Rears are urS4 calipers w/stock S4 pads over 280x25 rotors. This has not been a progressive problem - it's kind of always been like this, even with the stock brake set up. Could it be that the MC is worn out? No signs of leaks at all.

On a side note relating to the brakes, during prolonged highway cruising I get a bad intermittent hum/high frequency vibration from the front left while traveling in a straight line. Only comes on after about 45 minutes to an hour on the highway. Never in the city. I can make it go away by touching the brakes or by turning the wheel slightly left or right, but then it reappears a few minutes later. Changing the wheel bearing did not solve the problem. The folks on the S2forum know of this problem and it seems to be quite common for those who have done the 996 upgrade. Anyone here experience this? Any known solutions? Anyone know if this problem is common in Porsches?



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