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Christian Zimmer
DieHard
Victoria
TT

Posts: 619
Reg: 09-2006

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Saturday, May 31, 2008 - 07:17 pm, by:  Christian Zimmer (Zimmi) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Guys,

Firstly, I dont have the type of dash with error codes ect.

Now, only when I accelerate hard and then take my foot off the pedal, my handbrake warning light will come on for a few seconds and then goes away. If I accelerate hard, but smoothly slow my acceleration, the light won't come on.

My theory is that its warning me that my brake pads are very worn (which I believe the rears are), or it could be to do with the brake fluid. I have enough in there, but it may need a flush. (I have read from Peter that the fluid absorbs moisture, and mine hasnt been changed...for who knows how long). Overall braking performance has never been great.

Its a TT by the way.

Any advice/help would be appreciated.

And yes, I'm getting my pads and fluid changed in the next couple of weeks.

Thanks.
Mustafa Akgul
Goo Roo
NSW
ToyoPartsMan

Posts: 1889
Reg: 07-2005

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Saturday, May 31, 2008 - 08:11 pm, by:  Mustafa Akgul (Muzzy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

stop your left knee getting excited and light wont come on:-)
Christian Zimmer
DieHard
Victoria
TT

Posts: 620
Reg: 09-2006

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Sunday, June 01, 2008 - 12:27 am, by:  Christian Zimmer (Zimmi) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Lol, trust me. Its not that. I have triple checked and made sure I have HELD the handbrake down when doing this, and the light still comes on.
Mike Beck
Goo Roo
New Zealand
Soarer Limited UZZ31 & Soarer 3.0GT JZZ31

Posts: 2059
Reg: 11-2005

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Sunday, June 01, 2008 - 09:22 am, by:  Mike Beck (Gold_40gt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

My Guess the switch for the hand brake light is possibly damaged and has come loose so It makes contact when the G-Forces during acceleration allow it to move.

Just a thought
George Funa
TryHard
NSW
Soarer TT

Posts: 169
Reg: 05-2006

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Sunday, June 01, 2008 - 02:09 pm, by:  George Funa (Fun001) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Check brake fluid level. Top it up and that should fix it
Christian Zimmer
DieHard
Victoria
TT

Posts: 621
Reg: 09-2006

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Monday, June 02, 2008 - 09:12 am, by:  Christian Zimmer (Zimmi) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I was kinda thinking the same thing Mike. Do you know where the handbrake sensor is?

George, I'm fairly certain my brake fluid is full. But it may possibly have reached that point where it has soaked up too much moisture.

I dont think it would be related though.

Thanks for your help guys.

We'll see if swapping all the brake pads and flushing the brake fluid helps.
Kyle Wathen
DieHard
Vic
GTTL

Posts: 526
Reg: 02-2007

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Monday, June 02, 2008 - 12:17 pm, by:  Kyle Wathen (Cspot) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Theres a sensor somewhere that detects brake fluid level. I read a while ago that these can clog up over time and give false errors. Apparently its fairly easy to remove and clean though, might want to give that a go.
Christian Zimmer
DieHard
Victoria
TT

Posts: 623
Reg: 09-2006

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Tuesday, June 03, 2008 - 04:27 pm, by:  Christian Zimmer (Zimmi) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I have just noticed in the past day or so that the light also comes on for a few seconds if I try to make a quick stop by pushing quickly down on the brake pedal with some force.

So harsh accelerating and braking cause the light to come on. I dont think its the G forces causing it, because if I accelerate hard and then take my foot off the pedal, the light comes on after I've stopped accelerating, not during. And the harder and longer I accelerate for, the longer the light comes on for when I stop accelerating.

hmm, very interesting. If it doesnt fix it to change the brake pads and flush the fluid, then it looks like a job for the highly capable doug at Sports and luxury.
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 9467
Reg: 11-2004

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Tuesday, June 03, 2008 - 04:55 pm, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

You really need to add a bit more brake fluid before anything else. Go a bit over the Full line. Fluid sloshing in the reservoir does match your description fairly well.
Dave Hart
Goo Roo
Waikato
UZZ32

Posts: 1297
Reg: 08-2005

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Tuesday, June 03, 2008 - 06:13 pm, by:  Dave Hart (Davyboy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

If your brake fluid hasn't been changed for a while try replacing the fluid in the reservoir. If that fixes the problem then I'd say your whole fluid needs replacing as it's absorbed too much moisture.
Christian Zimmer
DieHard
Victoria
TT

Posts: 634
Reg: 09-2006

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Wednesday, July 09, 2008 - 04:45 pm, by:  Christian Zimmer (Zimmi) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey guys,

Just though I would finish this thread off for anyone who searches.

After we replaced the brake pads and flushed the system with new brake fluid....error gone.

The pads still had heaps of meat, so it would have been the fluid was either too low or absorbed too much moisture.

Thanks for your help guys (Especially James who changed my brake pads and fluid)
Tim Hutchings
Tinkerer
Wellington
Soarer TT

Posts: 88
Reg: 01-2008

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Friday, July 25, 2008 - 09:40 pm, by:  Tim Hutchings (One_jay_zed) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey Christian, I have the exact same problem, cheers for posting. Someone should put this in the common fixes section, I had no idea, I just thought my handbrake was ever so slightly to tight.

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