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Can someone please check if pressing brake pedal few times brings on warning light

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Old 10-26-2018, 01:15 PM
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911 2
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Default Can someone please check if pressing brake pedal few times brings on warning light

been told this is normal could some one please start your 964 turbo, leaving the engine in neutral press the brake pedal approx 10 times continuously, does this brig on the red warning light on the dash together with the bleeping as mine does this and been told this is normal for all 964 turbos and na 964, thanks in advance.

Last edited by 911 2; 10-26-2018 at 01:44 PM.
Old 10-26-2018, 07:09 PM
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Originally Posted by 911 2
been told this is normal could some one please start your 964 turbo, leaving the engine in neutral press the brake pedal approx 10 times continuously, does this brig on the red warning light on the dash together with the bleeping as mine does this and been told this is normal for all 964 turbos and na 964, thanks in advance.
The 964 series of car doesn't have the conventional vacuum boost but a Teves/ATE hydroboost system with a Bosch ABS controller.
The system has to build pressure if it's been sitting.
If my car has been sitting for a few weeks (normal condition) the brake warning light comes on at key-on and goes out within 30 seconds. Sometimes it beeps and sometimes it doesn't.
Old 10-26-2018, 07:42 PM
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once it goes out if you the press the pedal again 10 times continuously will it bring the light /bleep on been told by a head porsche mechanic this is normal just wanted to confirm as mine goes off after starting but if i then keep pressing the pedal the light and alarm come back on
Old 10-26-2018, 11:15 PM
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Originally Posted by 911 2
once it goes out if you the press the pedal again 10 times continuously will it bring the light /bleep on been told by a head porsche mechanic this is normal just wanted to confirm as mine goes off after starting but if i then keep pressing the pedal the light and alarm come back on
So why are you doing that? Don't do that!
Old 10-27-2018, 08:14 AM
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i have bled the brakes clutch and the bomb sphere in the front just want to make sure its not air i the system causing pump to push air
Old 10-29-2018, 10:27 AM
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Originally Posted by 911 2
i have bled the brakes clutch and the bomb sphere in the front just want to make sure its not air i the system causing pump to push air
One push can determine that. Pedal should be really firm.
If you bled the Teves reservoir first and then bled the calipers and clutch, you should be ok.

Last edited by Metal Guru; 10-29-2018 at 11:03 AM.
Old 10-29-2018, 04:12 PM
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i bled the calipers then clutch and sphere I have since bled the sphere again but not touched the brakes or clutch
Old 11-01-2018, 06:34 PM
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anyone please have a check on their car I dont really want to take her down the road to find the brakes fail lol
Old 11-02-2018, 10:22 AM
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Originally Posted by 911 2
anyone please have a check on their car I dont really want to take her down the road to find the brakes fail lol
Check what?
It sounds to me like you bled your brakes correctly.
Do you have a firm pedal, yes or no?
If you do, drive the car.
If you are worried, start out in you neighborhood and don't go over 25 mph. If your hand brake is working you are safe to do that.
Old 11-02-2018, 01:09 PM
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just need someone to start their car, let all the lights go out and then press the brake pedal approx 10 times does this bring the warning light/alarm on
Old 11-03-2018, 07:35 PM
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Originally Posted by 911 2
just need someone to start their car, let all the lights go out and then press the brake pedal approx 10 times does this bring the warning light/alarm on
Alright.
I started my car, let the system pressurize (light and alarm went off) and pumped my brake pedal three times rapidly in succession (yeah, it wasn't 10 times, but whatever).
And dum-dee-dum, the light and alarm flashed, albeit briefly.
I then proceeded to drive my car for an hour without incident.
According to the EE Phd who lives under my roof and is a brake test engineer, the Bosch anti-lock module freaks out when anyone does that because it thinks the pressure pump is failing. Remember, the anti-lock system in our cars is 1st or 2nd generation and are a little primitive by today's standards.
So, I reiterate, there is nothing wrong with your car. Take it out and drive it like you stole it.
Old 11-03-2018, 08:44 PM
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Thanks greatly appreciate you checking will definitely drive it like I stole it lol



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