Slight brake pedal stutter after new pads

[MBS206]

*cough* pull the ABS fuse *cough*

[Dose Pipe Sutututu]

11 hours ago, MBS206 said:

*cough* pull the ABS fuse *cough*

Don't do that, time for a Bosch Motorsport ABS package.

Seems to be semi affordable these days.

https://www.efihardware.com/products/3193/bosch-motorsport-abs-m5-kit-clubsport

 

[Murray_Calavera]

ooof still painfully expensive. I'd imagine by the time it's installed and tuned you will have spent double that. 

[Dose Pipe Sutututu]

by the time everything is done a M3/M4 is cheaper and faster lol

[PranK]

12 hours ago, MBS206 said:

*cough* pull the ABS fuse *cough*

Are you kidding? Pulling any fuse will brick the entire car, from the sunroof to the tyre pressure sensors.

1 hour ago, Dose Pipe Sutututu said:

Don't do that, time for a Bosch Motorsport ABS package.

Seems to be semi affordable these days.

https://www.efihardware.com/products/3193/bosch-motorsport-abs-m5-kit-clubsport

 

I don't have enough soul left to sell.

24 minutes ago, Dose Pipe Sutututu said:

by the time everything is done a M3/M4 is cheaper and faster lol

Yeah, this old girl is complete now from a performance POV (how often have you heard that?). I'll just maintain and enjoy for a few years and consider getting an M-something (probs M2) in the future. 

[MBS206]

4 hours ago, PranK said:

Are you kidding? Pulling any fuse will brick the entire car, from the sunroof to the tyre pressure sensors.

See, I find that hilarious, as I've seen them do so much stupid things (BMW and Merc) with electric faults. Yet the C63 race car has half the modules pulled out, a bunch of fuses and wiring cut, and, it just runs happily! We can even pull the ABS module or fuse, and it's totally happy!

[PranK]

56 minutes ago, MBS206 said:

See, I find that hilarious, as I've seen them do so much stupid things (BMW and Merc) with electric faults. Yet the C63 race car has half the modules pulled out, a bunch of fuses and wiring cut, and, it just runs happily! We can even pull the ABS module or fuse, and it's totally happy!

Have you done a paternity DNA test?

[PranK]

Ergh... So I pulled the speed sensor out again and the tip was shiny so I think it's rubbing the bearing. The bearing contains the magnets for the speed sensor so I think when the first sensor broke it damaged the magnet ring on the bearing. 

This is just a Google image, but there is a hole going to the bearing. So when the tip broke off the old sensor I'm guessing it fouled the bearing... As the magnet is only protected by a plastic cover it would be easy to damage it.

So I guess I'm doing a bearing again. 

 

[MBS206]

Jack the back of the car up, pull that wheel off, pull that sensor out, and put a bore scope into the hole to inspect the outer casing, see if anything looks damaged before you pull the whole thing apart.

[PranK]

1 hour ago, MBS206 said:

Jack the back of the car up, pull that wheel off, pull that sensor out, and put a bore scope into the hole to inspect the outer casing, see if anything looks damaged before you pull the whole thing apart.

I did that today. I couldn't get the scope in there but I could get a good look with a torch. There was heaps of shit on the walls of the sensor hole that I cleaned as best I could but I couldn't see any damage or anything untoward. 😞

[PranK]

I might buy a new scope actually in the morning, mine has gone a bit cloudy so was kinda useless especially as I couldn't get it in there. Might be a good first step actually.

[Dose Pipe Sutututu]

15 hours ago, PranK said:

broke off the old sensor I'm guessing it fouled the bearing... As the magnet is only protected by a plastic cover it would be easy to damage it.

Bosch Motorsport ABS time 

[GTSBoy]

7 minutes ago, Dose Pipe Sutututu said:

Bosch Motorsport ABS time 

Uses the factory sensors? Which are currently the problem?

[MBS206]

I will reiterate... Pull the ABS fuse...

At a minimum, good test to see if it's actually being caused by the ABS system...

At the other end of the scale, if the vibration is from ABS turning on, last thing you want is when you're trying to brake, having ABS kick in when it shouldn't and now you can't actually stop at all... At least with ABS unplugged the worst issue is you need to be aware you're the one that needs to modulate pressure in an emergency.

Edited 9 hours ago by MBS206

[Watermouse]

2 hours ago, Dose Pipe Sutututu said:

[Dose Pipe Sutututu]

2 hours ago, GTSBoy said:

Uses the factory sensors? Which are currently the problem?

Replacing the entire system with a Bosch Motorsports ABS system fixes the issue @PranKhas 

Probably not the cheapest nor cost effective way to fix his ABS problem 😂

[PranK]

Hey keep the ideas coming, I'm always keen on projects!

But, problem fixed! 

I got a cheapie ozito scope from Bunnings and had a good look in and around the bearing and sensor hole. I couldn't see a smoking gun but the bearing looked a bit strange, especially when comparing with a new one. I thought the cover had come off the bearing magnets. 

Sorry for pics of a screen, I didn't have an SD card. 

  

Good thing I had the old one to inspect.

So, given I'm like a pit crew with wheel bearings and luckily I had a spare bearing because I f**ked up my parts order, I decided to just smash it out.

Got the old one out in about an hour. So much easier when the parts haven't had a chance to rust together yet. 😂

And, well, found the problem. 

 

In the second pic at about the 8 o'clock position, you'll see what I think is the tip of the old sensor. 

The new sensor has definitely been rubbing but it's all intact, just a little shiny so I'm hoping it's fine. 

The car brakes perfectly now and no errors. 

I think the job took about 2.5h in the end. 👍🏻

I really appreciate the help in here as usual. Thanks guys.

[MBS206]

27 minutes ago, PranK said:

Hey keep the ideas coming, I'm always keen on projects!

But, problem fixed! 

I got a cheapie ozito scope from Bunnings and had a good look in and around the bearing and sensor hole. I couldn't see a smoking gun but the bearing looked a bit strange, especially when comparing with a new one. I thought the cover had come off the bearing magnets. 

Sorry for pics of a screen, I didn't have an SD card. 

  

Good thing I had the old one to inspect.

So, given I'm like a pit crew with wheel bearings and luckily I had a spare bearing because I f**ked up my parts order, I decided to just smash it out.

Got the old one out in about an hour. So much easier when the parts haven't had a chance to rust together yet. 😂

And, well, found the problem. 

 

In the second pic at about the 8 o'clock position, you'll see what I think is the tip of the old sensor. 

The new sensor has definitely been rubbing but it's all intact, just a little shiny so I'm hoping it's fine. 

The car brakes perfectly now and no errors. 

I think the job took about 2.5h in the end. 👍🏻

I really appreciate the help in here as usual. Thanks guys.

Johnny is sad now... Because you didn't get Bosch Motorsport ABS.

 

[PranK]

2 minutes ago, MBS206 said:

Johnny is sad now... Because you didn't get Bosch Motorsport ABS.

 

But that doesn't mean I won't.

[MBS206]

Just now, PranK said:

But that doesn't mean I won't.

The part where you claim the car "is done" means you won't...