GLB35 Brake Squeal
Thread Starter
Super Member
Joined: Oct 2005
Posts: 997
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From: Frisco Colorado, USA
2024 GLB35 AMG, 2020 S560 Coupe
GLB35 Brake Squeal
From day, one and continuing through my 1000 mile break in period, I have experienced an annoying brake squeal when coming to an stop under light braking. On other vehicles I have used Disc Brake Quiet spray on the back of the brake pads and have scored the brake pads and rotors, but I am hoping the dealer can correct this problem. Has anyone else out there experience this? Thank you in advance.
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From day, one and continuing through my 1000 mile break in period, I have experienced an annoying brake squeal when coming to an stop under light braking. On other vehicles I have used Disc Brake Quiet spray on the back of the brake pads and have scored the brake pads and rotors, but I am hoping the dealer can correct this problem. Has anyone else out there experience this? Thank you in advance.
Senior Member
Joined: Jul 2021
Posts: 490
Likes: 176
2021 Glb35 AMG (2013 GLK 350)
My 2021 GLB35 has it also. Now it sounds less as the brakes got older. I found below MB Technical Service Bulletin for squeaky brakes on GLA35/GLB35:
https://static.nhtsa.gov/odi/tsbs/20...33782-0001.pdf
I gave it to MB dealer during 3rd year service. They said I may need to change the brakes soon, but still they are fine at 25K miles...
https://static.nhtsa.gov/odi/tsbs/20...33782-0001.pdf
I gave it to MB dealer during 3rd year service. They said I may need to change the brakes soon, but still they are fine at 25K miles...
Last edited by Serhan; Oct 7, 2024 at 08:29 PM.
Thread Starter
Super Member
Joined: Oct 2005
Posts: 997
Likes: 260
From: Frisco Colorado, USA
2024 GLB35 AMG, 2020 S560 Coupe
Yep. I did the standard procedure of repeated slow down to 5 mph from 35 mph, 50 mph, and 75 mph and then cruised to let the brakes cool. Initial results and my expectations are that this will solve the squeal problem. Thanks again for the reminder. I've done this many times on race cars, but forgot about it until you reminded me.
Last edited by slk55er; Oct 7, 2024 at 11:12 PM.
Thread Starter
Super Member
Joined: Oct 2005
Posts: 997
Likes: 260
From: Frisco Colorado, USA
2024 GLB35 AMG, 2020 S560 Coupe
My 2021 GLB35 has it also. Now it sounds less as the brakes got older. I found below MB Technical Service Bulletin for squeaky brakes on GLA35/GLB35:
https://static.nhtsa.gov/odi/tsbs/20...33782-0001.pdf
I gave it to MB dealer during 3rd year service. They said I may need to change the brakes soon, but still they are fine at 25K miles...
https://static.nhtsa.gov/odi/tsbs/20...33782-0001.pdf
I gave it to MB dealer during 3rd year service. They said I may need to change the brakes soon, but still they are fine at 25K miles...
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MBWorld God!
Joined: Dec 2019
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Yep. I did the standard procedure of repeated slow down to 5 mph from 35 mph, 50 mph, and 75 mph and then cruised to let the brakes cool. Initial results and my expectations are that the salt that squeal problem. Thanks again for the reminder. I've done this many times on race cars, but forgot about it until you reminded me.
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Thread Starter
Super Member
Joined: Oct 2005
Posts: 997
Likes: 260
From: Frisco Colorado, USA
2024 GLB35 AMG, 2020 S560 Coupe
Break?
I know it's "brake" not "break." Like for others, I assume my spell checker must have changed what I typed. Who in these days talks about brakes when one is only worried about when their next break is? 
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Junior Member
Joined: Feb 2025
Posts: 22
Likes: 10
GLB35
Just wanted to say thanks for providing the TSB for the brake squeal. MB service center replaced the pads with a new set and followed the instructions as directed. They took the GLB out to bed in and seems to be fixed.
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Senior Member
Joined: Jul 2021
Posts: 490
Likes: 176
2021 Glb35 AMG (2013 GLK 350)
Good to hear that. In my case MB service told me that I need a new brakes instead of servicing it, so I didn't want to replace the brakes when the brakes were not fully worn out. I will ask again when I will have the new brake change...
MBWorld God!
Joined: Dec 2019
Posts: 32,681
Likes: 6,420
MBWorld God!
Joined: Dec 2019
Posts: 32,681
Likes: 6,420
MBWorld God!
Joined: Dec 2019
Posts: 32,681
Likes: 6,420
Junior Member
Joined: Feb 2025
Posts: 22
Likes: 15
From: Arizona, US
2024 AMG GLB 35 4MATIC
Glad to see this thread here; mine squeak as well even with bedding and breaking in and all the good stuff. It's taunting me, just won't go away. On the hunt for some ceramic pads for the GLB 35 anyways but that's also quite a journey -- not having much luck. (Ceramic may not fix my squeals but it should help with all the brake dust from stock pads.)
MBWorld God!
Joined: Dec 2019
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Glad to see this thread here; mine squeak as well even with bedding and breaking in and all the good stuff. It's taunting me, just won't go away. On the hunt for some ceramic pads for the GLB 35 anyways but that's also quite a journey -- not having much luck. (Ceramic may not fix my squeals but it should help with all the brake dust from stock pads.)
Junior Member
Joined: Feb 2025
Posts: 22
Likes: 10
GLB35
I would pursue the warranty route for full replacements.
On the flip side, I did reach out to Akebono, their aftersales team replied with the vehicle in operation is too low to justify production costs for them. They are looking for a minimum of 50k total. So unfortunate! Their performance and proact pads are great for noise, dust and fade resistance.
On the flip side, I did reach out to Akebono, their aftersales team replied with the vehicle in operation is too low to justify production costs for them. They are looking for a minimum of 50k total. So unfortunate! Their performance and proact pads are great for noise, dust and fade resistance.
MBWorld God!
Joined: Dec 2019
Posts: 32,681
Likes: 6,420
I would pursue the warranty route for full replacements.
On the flip side, I did reach out to Akebono, their aftersales team replied with the vehicle in operation is too low to justify production costs for them. They are looking for a minimum of 50k total. So unfortunate! Their performance and proact pads are great for noise, dust and fade resistance.
On the flip side, I did reach out to Akebono, their aftersales team replied with the vehicle in operation is too low to justify production costs for them. They are looking for a minimum of 50k total. So unfortunate! Their performance and proact pads are great for noise, dust and fade resistance.
Junior Member
Joined: Feb 2025
Posts: 22
Likes: 10
GLB35
Just came across R1 concepts that has aftermarket pads available. Have not tried this company but seems decent: -
2023 Mercedes-benz Glb35 Amg Optimum Oep Series Brake Pads
Driving Style: Daily
Material: Original Equipment Formulation
Included in this kit: 4 Brake Pads
Position: Front
SKU: 2551-2276-00
R1 OPTIMUM OEp Series Brake Pads: Made of Original Equipment (OE) formulation materials providing the same performance as OE but without the OE prices.
Recommended Vehicles: Passenger Vehicles and Light Duty Trucks
Recommended Use: Daily Use
Link to amazon
2023 Mercedes-benz Glb35 Amg Optimum Oep Series Brake Pads
Driving Style: Daily
Material: Original Equipment Formulation
Included in this kit: 4 Brake Pads
Position: Front
SKU: 2551-2276-00
R1 OPTIMUM OEp Series Brake Pads: Made of Original Equipment (OE) formulation materials providing the same performance as OE but without the OE prices.
Recommended Vehicles: Passenger Vehicles and Light Duty Trucks
Recommended Use: Daily Use
Link to amazon
MBWorld God!
Joined: Dec 2019
Posts: 32,681
Likes: 6,420
Just came across R1 concepts that has aftermarket pads available. Have not tried this company but seems decent: -
2023 Mercedes-benz Glb35 Amg Optimum Oep Series Brake Pads
Driving Style: Daily
Material: Original Equipment Formulation
Included in this kit: 4 Brake Pads
Position: Front
SKU: 2551-2276-00
R1 OPTIMUM OEp Series Brake Pads: Made of Original Equipment (OE) formulation materials providing the same performance as OE but without the OE prices.
Recommended Vehicles: Passenger Vehicles and Light Duty Trucks
Recommended Use: Daily Use
Link to amazon
2023 Mercedes-benz Glb35 Amg Optimum Oep Series Brake Pads
Driving Style: Daily
Material: Original Equipment Formulation
Included in this kit: 4 Brake Pads
Position: Front
SKU: 2551-2276-00
R1 OPTIMUM OEp Series Brake Pads: Made of Original Equipment (OE) formulation materials providing the same performance as OE but without the OE prices.
Recommended Vehicles: Passenger Vehicles and Light Duty Trucks
Recommended Use: Daily Use
Link to amazon
Junior Member
Joined: Feb 2025
Posts: 22
Likes: 15
From: Arizona, US
2024 AMG GLB 35 4MATIC
Follow-up to my addition to thread here in Feb 2025: I tried bedding, slamming on breaks, pad sprays, all of that. I finally took in to dealer and they were able to replicate the sound and issue under light braking as well (thank goodness). At this time car was still new and under warranty (only six months of ownership at the time). Dealer said it sounded like a diesel truck coming to a stop. Dealer repaired with new front pads (where the squealing was coming from), fixed it right up and no issues since (now two months later).
Of course, not sure if this is option for others, but all things tried didn't work except pad replacement.
Of course, not sure if this is option for others, but all things tried didn't work except pad replacement.
