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YOUR RESEARCHBrakes?
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Replace hi chris, thanks
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Hi Chris, thanks for the clarification, rear discs were replaced two years ago due to corrosion on inside face.
Leading evidence: 'Replace hi chris, thanks' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace hi chris, thanks' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Evening all, havent posted in a while as all has been good with the car. Went out today and the brake padel seemed a bit spongy but stragely the travel was about half usual and then pedal went hard/almost solid but without any increase in stopping power, most strange. Can anyone shed any light on this? Thanks Andy
Ah yes, piston broke, know that feeling! I think if it was just brake fluid it would be sponginess only.
Trip to the dealers for this one I think (easy job for an indie).
Best.
Another possibility is the brake servo. Early 996s had a problem with the bellows seal, which allowed water into the servo, causing it to rust badly inside. You would have thought that it would have manifested itself by now, but would be worth checking. If you want the full TSB, drop me an email.
Hi Guys, thanks for the feedback, had never heard of knockback? Does this mean the brake calipers have springs in behing the pistons and that one of them has broken?
If its the servo guess its easy for OPC to do without breaking the bank?
Thx Andy
Hi Andy
Knockback is either vibration or unevenly worn disc (including rear face corrosion) which pushes the piston further in than it normally sits. When you hit the pedal it takes a bit of travel before you feel any braking force (which is where the 'soft' pedal feel comes from) followed by a normal solid feel at the second press as the piston is where it should be after the first press.
Hi Chris, thanks for the clarification, rear discs were replaced two years ago due to corrosion on inside face.
Richard pls can you let me have your email address, thanks
