Brembo on a budget! Let's make x5 great again :)

[Maverik259]

Originally Posted by fr_tz

Thanks ..I'm going to see if my seller still has the original bracket. One good thing is that the fronts cleaned up quite nicely. Don't even need to powdercoat them. Practically perfect other than the fading M. I'm going to see if tronik can match them before sending out my rears.

Oh you bought these from Tronik in Russia! That's awesome. I've been wanting to do the rear calipers forever but they want a pretty penny for them.

Ya he should have definitely sent the bracket.

[fr_tz]

Originally Posted by Maverik259

Oh you bought these from Tronik in Russia! That's awesome. I've been wanting to do the rear calipers forever but they want a pretty penny for them.

Ya he should have definitely sent the bracket.

Rears are from Tronik..I got the fronts off of a seller on eBay. Response I got from the seller is that M5 caliper bolts directly to the spindle on studs. No bracket. I guess I can call BMW to validate but it looks like I'll need an adapter regardless. Hopefully I can have Tronik throw them in for cheaper than advertised.

[Maverik259]

Originally Posted by fr_tz

Rears are from Tronik..I got the fronts off of a seller on eBay. Response I got from the seller is that M5 caliper bolts directly to the spindle on studs. No bracket. I guess I can call BMW to validate but it looks like I'll need an adapter regardless. Hopefully I can have Tronik throw them in for cheaper than advertised.

Not surprised hopefully it works out. When do you get the calipers?

[fr_tz]

Originally Posted by Maverik259

Not surprised hopefully it works out. When do you get the calipers?

2-3 weeks which I'm okay with since I won't fit them until Spring.

[Maverik259]

Ya you better jump on this. Last one left.

[KillFox91]

Anyone know the correct numbers for splash shields for M brakes?

34-11-6-857-979 looks like front left

34-11-6-857-980 looks like front right

34-21-6-857-982 looks like it might be left and right for the rear?

Also anyone have the part number for the m rotor screw?

Thanks!

[Maverik259]

Originally Posted by KillFox91

Anyone know the correct numbers for splash shields for M brakes?

34-11-6-857-979 looks like front left

34-11-6-857-980 looks like front right

34-21-6-857-982 looks like it might be left and right for the rear?

Also anyone have the part number for the m rotor screw?

Thanks!

They're fine.

Put them into getbmwparts and they show you.

[sbinshihon]

Regarding the vibration issue, dose this look normal? its on both of the calipers..

[Maverik259]

Originally Posted by sbinshihon

Regarding the vibration issue, dose this look normal? its on both of the calipers..

You mean the fact that you don't have any pins or your clip lol. Ya that's a problem and your source of the vibration!

Take it by the dealer ASAP and get those parts.

[sbinshihon]

Originally Posted by Maverik259

You mean the fact that you don't have any pins or your clip lol. Ya that's a problem and your source of the vibration!

Take it by the dealer ASAP and get those parts.

No off course I took those out to clean them.. I mean the rusting on one side!

[mikew2069]

Originally Posted by sbinshihon

No off course I took those out to clean them.. I mean the rusting on one side!

Nah that’s not a problem.

[Maverik259]

Originally Posted by sbinshihon

No off course I took those out to clean them.. I mean the rusting on one side!

Damn. Was hoping it was that easy. But the rust is just cuz that's the outside of the rotor. I.e. closer to the environment.

[mikew2069]

Originally Posted by sbinshihon

No off course I took those out to clean them.. I mean the rusting on one side!

Shot in the dark but is the face of your wheel hub and the back of your wheel's mounting plate super clean? Might help to hit all four with a wire brush?

[sbinshihon]

Originally Posted by mikew2069

Shot in the dark but is the face of your wheel hub and the back of your wheel's mounting plate super clean? Might help to hit all four with a wire brush?

Yes they are... I think that will cause vibration regardless of braking or not.

I getting fed up with MPBK I will remove them and install the original brakes. Hopefully the problem will go away.. then I will rebuild the MPBK.

[mikew2069]

Originally Posted by sbinshihon

Yes they are... I think that will cause vibration regardless of braking or not.

I getting fed up with MPBK I will remove them and install the original brakes. Hopefully the problem will go away.. then I will rebuild the MPBK.

Would rebuilding them have anything to do with vibration? If anything I would think it would only help the actual stopping power.

[sbinshihon]

Originally Posted by mikew2069

Would rebuilding them have anything to do with vibration? If anything I would think it would only help the actual stopping power.

Maybe they are sticking a little bit... I noticed recently that the car moves to one side while braking.

[Maverik259]

Originally Posted by sbinshihon

Maybe they are sticking a little bit... I noticed recently that the car moves to one side while braking.

I guess you can clean them up and see how they act.

[sbinshihon]

Originally Posted by Maverik259

I guess you can clean them up and see how they act.

Yup, thats the plan. I dont know what else to do really.

[DuSh]

Originally Posted by sbinshihon

Yup, thats the plan. I dont know what else to do really.

If you have the car on hoist already, maybe you could simulate same conditions with wheels in air and see if there will be vibrations visible on front or rear? i mean start the car, put it in D, accelerate till needed speed and then apply brakes (assuming it's safe to do and car is secured on hoist). There's no way you wont' see what vibrates - unless it's indeed suspension (due to car been oh hoist) - then we at least will know it's not brakes.

[sbinshihon]

Originally Posted by DuSh

If you have the car on hoist already, maybe you could simulate same conditions with wheels in air and see if there will be vibrations visible on front or rear? i mean start the car, put it in D, accelerate till needed speed and then apply brakes (assuming it's safe to do and car is secured on hoist). There's no way you wont' see what vibrates - unless it's indeed suspension (due to car been oh hoist) - then we at least will know it's not brakes.

Thanks for the tip.

The vibration comes in speeds above 75 miles. Literally when I first lean on the brakes (you know that gap before the actual brake force), so If I just close that gap with my foot the car shakes violently, the harder I press the less shaking theres... :

[fr_tz]

When swapping out your calipers did you guys change your brake lines as well? Any recommendations?

[sbinshihon]

I have good news turn out there was something missing that caused the vibration! The primary suspect is this brake line holder. After installing this and turning the rotors... The brakes feels solid now!