7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH02 TT, another soft pedal, squishy noises
Leading reported evidence
Replace i will power flush the system and will see
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
Once replaced, I will power flush the system and will see.
Leading evidence: 'Replace i will power flush the system and will see' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check seals' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I'm tempted to either replace the MC (750�, not a trivial cost) or to take it out, open it and check the seals.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I'm tempted to either replace the MC (750�, not a trivial cost) or to take it out, open it and check the seals.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
Still, I�m not sure whether replacing the MC will solve my issue.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Brakes were just bled at the dealer, no change in the feel.
For quite some time the feel of my brake pedal (02 TT) doesn't feel right, spongy and easy to reach the bottom. Stopping power feels ok, but need to go deep on it.
Brakes were just bled at the dealer, no change in the feel. I didn't discuss any of this with them, as I'm used to do all my corrective maintenance and only let them do the minimal scheduled so as to have the stamps on the book.
Having another person pressing the pedal whilst I look at the Master Cylinder/booster/ABS pump area, engine off, there's lots of unexpected noises: clear spring noises coming from inside the MC and bubbly/squishy noises that appear to come from the lines going into the main ABS controller unit. No leaks are visible anywhere. No bubbles are visible on any of the unions.
Another thing that has puzzled me for a while, is the appearance of drops of hydraulic fluid on the surface of the fluid reservoir. Some ends up collecting in the channel surrounding the reservoir. It's as if it is leaking through the cap, although I have replaced it with a brand new OEM cap.
The level of the reservoir does not go down with time, never had to top it with fluid.
Anybody had any of these symptoms? I'm tempted to either replace the MC (750�, not a trivial cost) or to take it out, open it and check the seals. Not sure about this option either because I may end up buggering a good and expensive thing and not solving the problem.
I e replaced mine with the 997 GT3 for about $200.
you do not need to get the OEM part. Buy the TRW which is basically the same.
part number is 99735591030.
the 996 part is half price.
https://eeuroparts.com/product/trw/P...RoC3KQQAvD_BwE
Car's 20+ years old, I wouldn't be mad if the MC needs to be replaced. Like meirschwartz noted, TRW is much cheaper than Porsche OEM. For all the stuff I've bought from them, so far (fingers crossed) they have maintained their quality throughout pandemic.
I just noticed I posted this in the general 996 forum, should have done this in the TT. Anyway, my research appears to indicate the correct TRW for the TT is PML383 (25.4 bore, front M12x1.0 aft M10x1.0. Just ordered one for 72�. Cheaper option is LPR 1054, half price or less.
Still, I�m not sure whether replacing the MC will solve my issue. Once replaced, I will power flush the system and will see.
