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      06-04-2021, 07:58 PM   #1
dodospor
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hey guys , i have bmw m4 2016 , stock suspension and not lowered or anything , the issue i have is the car pulling to right on high way checked two diff shops and they said its because the crowns , i have tune on the car , i heard software will fix the issue . can i just update the steering wheel without whole software update so it wont affect my tune

second issue is the car shaking under-braking when my speed is around 75 mph , checked if the rotors are wraped and check all the suspension competent and everything is good , also my steering wheel vibrate little bit around 45 mph that happen when i left my hand of the steering for few seconds.

if someone help me and give me advice , i been trying to solve these problems for the past month and cant figure out whats wrong with the car
went to different shops and they find my car drive normal but to me is not.

Note: changed wheels and tires and did alignment couple of times and road force balance also tried cs and gts steering wheel and still no luck , also no spacers

thanks
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      06-04-2021, 08:18 PM   #2
fiveohwblow
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Contact Alex at alpine. There is a potential coding can fix.
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      06-04-2021, 08:54 PM   #3
rmanm4
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Coding is not going to fix your vibration.

Vibration under breaking is usually due to the following:

-Warped rotors.
-Issue with rim or tires (rim could be bent)
-Control arm bushings
-Tierod bushing
-Bearing issue (very rare but bearing could put a pulse on each rotation)

Last edited by rmanm4; 06-05-2021 at 07:24 AM..
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      06-05-2021, 01:58 AM   #4
andrei.m4
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If you can belive one more thing can make the vibration, brake pads. I bought an aftermarket brembo pads and my issue was vibration at high speed. I replaced them with a different manufacurer and everything is ok now.
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      06-05-2021, 03:33 AM   #5
dodospor
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Quote:
Originally Posted by andrei.m4 View Post
If you can belive one more thing can make the vibration, brake pads. I bought an aftermarket brembo pads and my issue was vibration at high speed. I replaced them with a different manufacurer and everything is ok now.
Quote:
Originally Posted by andrei.m4 View Post
If you can belive one more thing can make the vibration, brake pads. I bought an aftermarket brembo pads and my issue was vibration at high speed. I replaced them with a different manufacurer and everything is ok now.
im running oem pads
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      06-05-2021, 11:22 PM   #6
Trevorstein
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Quote:
Originally Posted by dodospor View Post
im running oem pads
Which, by the way, are "Brembo"!

But, it's. more than likely, probably your rotor discs.


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