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Old 05-09-2012, 02:58 PM   #1
dcramer
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low brake pedal

curious how many people have a low brake pedal. There is a thread on bimmerforums that suggests the problem is that the e36 is over boosted. I'm curious if everyone has this problem ?
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Old 05-09-2012, 09:20 PM   #2
naui16865
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I have two E36 M3 coupes with the dreaded long brake pedal travel: my daily driver ('98) and my track toy ('99). They have 275K Km and 174K Km on them respectively. A very good friend of mine has a '97 E36 4dr M3 with the same symptoms.

All three cars have stock brake set-ups. We've used with a wide variety of pad compounds on the street and track: Jurid (OEM), Stop Tech (Street Performance), Hawk track pads (various compounds), Carbotech XP-10s & XP-12s, Ferrodo 2500's. Brake fluid gets flushed frequently on all cars using ATE Super Blue Racing or Prospeed 683 (I like this stuff but it's $$). New rotors tried include: ATE, BMW Motorsport floating, PFC Direct Drive & Brembo. Stainless steel lines are installed on all three cars. Small changes / improvements have been observed as components were changed but NONE of the changes have sorted the problem.

My buddy also had a '91 E36 325i occasional track car that did NOT have this prob at all.

I don't subscribe to the over-boost explanation: the math doesn't make sense to me. A lot has been written on various forums describing the prob with a wide range of attempted fixes but little satisfaction achieved at least wrt dual-use cars.

I've replaced the OEM rubber brake pedal cover with an OMP aluminum pedal + a 1 cm shim to bring the pedal on my track toy to the right spot for comfortable heel & toe. It's not ideal but it's better than nothing.
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Old 05-09-2012, 09:24 PM   #3
dcramer
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I am also questioning the over boost explanation. My guess is wear inside the booster. It just doesn't make sense. The pedal should be hard regardless of how much boost there is
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Old 05-11-2012, 11:47 PM   #4
iverson03tj
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come to think about it, my 92 325is didnt have that issue.... but it also had the m3 brakes... and once i swapped the m3 brakes into my 96 i felt a noticeable difference.
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Old 04-19-2013, 12:14 PM   #5
dcramer
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ok, after bleeding my brakes as per the bentley manual. Pump the pedal with a pressure bleeder, my pedal is where it is supposed to be.

I guess they really weren't wasting ink. You really do need to do both, use a pressure bleeder and pump the brakes.

Huge waste of time and effort on my part not to mention now really don't need the rallyroad porsche brake kit I ordered
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