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Brake Squeal on my 2021 ID.4 First Edition

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brakes first edition id4
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Is this normal, as the dealership is telling me?

  • Yes

    Votes: 8 28.6%

  • No

    Votes: 10 35.7%

  • Yes & No

    Votes: 10 35.7%
  • Total voters
    28
1 - 20 of 23 Posts
Huey52

· Super Moderator
Joined
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6,575 Posts
#2 ·
Yes & No:

Brakes squeaking like that can 'simply' be a function of the brake pads themselves. Some pads are formulated for quiet operation but usually at the compromise of more dust, e.g. German-mandated high graphite content.
Conversely there are pads that are low dust but usually at the expense of more squeaking, at least until they get warmed up; typically ceramic types.
The old adage with brake pads is performance-sound-dust: pick any two.
It can also be a function of environment dampness and thereby the typical flash rust on the front disc rotors that abates once dried/cleared by initial braking actions. Some vehicles with disc brakes periodically pulse the grip to ensure the rotors/pads are kept clear, but given that EV's are designed more for higher rolling efficiency the ID does not; and also because much of the vehicle's braking is accomplished by motor inertia.
The rear drum brakes being effectively encapsulated shouldn't be an issue. Note however that most of the brake-system braking (again, after motor regenerative braking) is accomplished by the front disc brakes given natural vehicle inertia.
My brakes do not squeak, nor surprisingly produce much dust (as did my prior VW AG vehicles). I believe the 20" wheels are well designed to ventilate and thereby the dust better removed? Many EV's have as their stock wheels very flat faced/non-ventilated wheels however to render lower aerodynamic rolling resistance (see Tesla base wheels). However my vehicle is garaged and typically dry so I'm possibly not the best peer for your situation.
Lastly note that brake pads perform best after being "bedded in", although most drivers don't do this and most have never even heard of it.

Since you now presumably have new pads/rotors/drums all around it will take some time for everything to again mesh properly.
 
Spin

· Super Moderator
2021 FE Mythos Black
Joined
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4,740 Posts
#3 ·
I voted no, but as my fellow moderator Huey52, my car is garaged. Test drive a demonstrator at the dealer and compare that to your car. Have the service people ride with you. You say they replaced the drums but did they change the front brakes as well?
 
Juanchico24

· Registered User
Joined
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5 Posts
Discussion Starter · #4 ·
Huey52 said:
Yes & No:

Brakes squeaking like that can 'simply' be a function of the brake pads themselves. Some pads are formulated for quiet operation but usually at the compromise of more dust, e.g. German-mandated high graphite content.
Conversely there are pads that are low dust but usually at the expense of more squeaking, at least until they get warmed up; typically ceramic types.
The old adage with brake pads is performance-sound-dust: pick any two.
It can also be a function of environment dampness and thereby the typical flash rust on the front disc rotors that abates once dried/cleared by initial braking actions. Some vehicles with disc brakes periodically pulse the grip to ensure the rotors/pads are kept clear, but given that EV's are designed more for higher rolling efficiency the ID does not; and also because much of the vehicle's braking is accomplished by motor inertia.
The rear drum brakes being effectively encapsulated shouldn't be an issue. Note however that most of the brake-system braking (again, after motor regenerative braking) is accomplished by the front disc brakes given natural vehicle inertia.
My brakes do not squeak, nor surprisingly produce much dust (as did my prior VW AG vehicles). I believe the 20" wheels are well designed to ventilate and thereby the dust better removed? Many EV's have as their stock wheels very flat faced/non-ventilated wheels however to render lower aerodynamic rolling resistance (see Tesla base wheels). However my vehicle is garaged and typically dry so I'm possibly not the best peer for your situation.
Lastly note that brake pads perform best after being "bedded in", although most drivers don't do this and most have never even heard of it.

Since you now presumably have new pads/rotors/drums all around it will take some time for everything to again mesh properly.
Click to expand...
Thanks, I appreciate the response. I live in Southern California and my car is also always parked in my garage so it’s never exposed to moisture in the mornings, but the screeching is at all times of the day and night. It will stop for awhile but then resumes.
 
ChristophW

· Premium Member
Happy owner of a blue ID.4 First Edition
Joined
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1,604 Posts
#5 ·
Fellow Southern Californian here with a garaged ID4, and my car's brakes don't squeak. They occasionally make a grunting noise right at the point of complete stop, especially when I approach the stop slowly and gently, as if the mechanical brake pads only just engaged then (which they probably did).
 
Huey52

· Super Moderator
Joined
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6,575 Posts
#9 ·
Then you certainly should continue to pursue a satisfactory solution with your service department. Don't take no for an answer and also contact VW Customer Care, with your VIN, to log your case: (800) 822-8987

Again, have a Tech drive with you and if it's that bad I don't see how they could thereafter cite it as "normal."

btw: Do you use "B" regen drive mode? In almost constant "B" I hardly have to use my brake pedal, as the motor's inertia does a great deal of the braking, and for me most of the time the mechanical brakes are therefore just cleaning up the last few mph.
Juanchico24 said:
Some squeal yes I agree but my car is excessive; it sounds like an old bus
Click to expand...
 
V

· Registered User
Joined
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4,521 Posts
#10 ·
Wax based and most detergents used for car washing are not good for brakes...especially automatic car wash....if not throughly washed with clean water .. it will give you this type of sound ....there is nothing wrong with performance but this will be up to owner to wash throughly.....
And if you ask my brother... cars should only be washed by hand.
 
V

· Registered User
Joined
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4,521 Posts
#12 ·
Huey52 said:
Yes & No:

Brakes squeaking like that can 'simply' be a function of the brake pads themselves. Some pads are formulated for quiet operation but usually at the compromise of more dust, e.g. German-mandated high graphite content.
Conversely there are pads that are low dust but usually at the expense of more squeaking, at least until they get warmed up; typically ceramic types.
The old adage with brake pads is performance-sound-dust: pick any two.
It can also be a function of environment dampness and thereby the typical flash rust on the front disc rotors that abates once dried/cleared by initial braking actions. Some vehicles with disc brakes periodically pulse the grip to ensure the rotors/pads are kept clear, but given that EV's are designed more for higher rolling efficiency the ID does not; and also because much of the vehicle's braking is accomplished by motor inertia.
The rear drum brakes being effectively encapsulated shouldn't be an issue. Note however that most of the brake-system braking (again, after motor regenerative braking) is accomplished by the front disc brakes given natural vehicle inertia.
My brakes do not squeak, nor surprisingly produce much dust (as did my prior VW AG vehicles). I believe the 20" wheels are well designed to ventilate and thereby the dust better removed? Many EV's have as their stock wheels very flat faced/non-ventilated wheels however to render lower aerodynamic rolling resistance (see Tesla base wheels). However my vehicle is garaged and typically dry so I'm possibly not the best peer for your situation.
Lastly note that brake pads perform best after being "bedded in", although most drivers don't do this and most have never even heard of it.

Since you now presumably have new pads/rotors/drums all around it will take some time for everything to again mesh properly.
Click to expand...
Your statement explains why is necessary to do bedding with new discs or brake pads.. and explained also materials used for brake pads and how they compare to noise or dust control.
Thank you.
 
Huey52

· Super Moderator
Joined
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6,575 Posts
#14 ·
I agree with your brother! (y)
VW TECHNICIAN said:
Wax based and most detergents used for car washing are not good for brakes...especially automatic car wash....if not throughly washed with clean water .. it will give you this type of sound ....there is nothing wrong with performance but this will be up to owner to wash throughly.....
And if you ask my brother... cars should only be washed by hand.
Click to expand...
 
Juanchico24

· Registered User
Joined
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5 Posts
Discussion Starter · #15 ·
I wash my car by hand and because my car has been in and out of the dealership they have been washing it for me. So let me ask you this @VW TECHNICIAN when you say I should wash it throughly should I take off the tires so can clean the brake pads and then dry them, because honestly that sounds like an excuse and a way to make the customer responsible for this issue.
 
V

· Registered User
Joined
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4,521 Posts
#16 ·
Juanchico24 said:
I wash my car by hand and because my car has been in and out of the dealership they have been washing it for me. So let me ask you this @VW TECHNICIAN when you say I should wash it throughly should I take off the tires so can clean the brake pads and then dry them, because honestly that sounds like an excuse and a way to make the customer responsible for this issue.
Click to expand...
No I'm not saying that...but you should make sure if you use wax based soap to make sure it is washed properly....and drying is natural process...most of wax based agents and paint protection chemicals will make front brake pads squeaking..... and you can easily fix it by applying brakes little harder in next couple places where you need slowing down.
I have car that If you need new discs and pads will cost you 25 000 euros and they will do squeaking if i didn't wash them good.
So just try to do this in future.....and regarding dirt and substances you pick while driving on wet roads there really nothing you can do to prevent this natural cause. ....only reason you hear it on EV is because EV are silent and it will give you unpleasant experience but it is all good.
 
Juanchico24

· Registered User
Joined
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5 Posts
Discussion Starter · #17 ·
I drove the test ID4 for a week and the brakes screeched maybe once or twice but never as bad or as frequent and the braking felt a lot better. I agree that some brake noise is normal with EVs but every video I have found online is more about a grinding noise than a screech. I am ok with that because it’s not as loud or as frequent, what I am not ok with is buying a $50k car that’s brakes sound like an old bus.
 
E

· Registered User
Joined
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2 Posts
#18 ·
Same issue with my First Ed iD4. Has been in the shop 3 times for brake squeak. Happens at all times and temperatures - and they tell me that there is no problem and I must take it up with VW. Extremely frustrating. Bad enough of a squeal that it's taking all the fun out of a new car experience.
 
V

· Registered User
Joined
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4,521 Posts
#19 ·
Do two times from 50 mph to stop hard braking...
And see if it improves or noise is gone.
Driving over high humidity or a lot of days with rain conditions and not using mechanical brakes will have this even on ICE ....but it will be muffled because of ICE noise.
 
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