# Service bulletin LI42.10\-P\-063502 A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 11014412 - Published by NHTSA: 2025\-02\-22 - Manufacturer's number: LI42.10\-P\-063502 - Manufacturer's date: 2025\-02\-03 - NHTSA component: SERVICE BRAKES ## NHTSA's summary Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for high loads. This can result in noises under certain operating conditions and driving styles. Please refer to the Operator's Manual for further information such as care and maintenance instructions \(washing vehicle directly after heavy use and using approved cleaning agents\). These are dependent on speed, brake pressure or ambient conditions such as temperature and air humidity. 1. Beginning Diagnostics: a\) Check whether, apart from this document, an additional document exists for the model series in question, and if so, work through it and then continue with1b. b\) Check whether the complaint can be reproduced and at which axle or side the noises occur \(ideally together with the customer while driving\). c\) Check the affected system for component wear, mechanical damage or localized overheating damage. 1. Replace damaged components as necessary and re\-assess noise concern. d\) Secure vehicle on a lift. 1. Start the engine and depress the brake pedal 3\-4 times. 2. Check each wheel to see if they turn freely by hand. 3. If a wheel is not turning freely by hand, this needs to be addressed prior to re\-assessing the noise concern. e\) Assess condition of brake rotors and pads per WIS and visually \(i.e. long periods of stagnation, etc...\). 2. Specific Axle Work: NOTE: If brake pad has a metal backing plate, there is no need to affix the adhesive film. a\) If the noises are coming from the front axle =\> Affix linings with adhesive film \(see attachments for front axle\). If backing plate is installed on pads, move to step 3. 1. Remove brake linings of front axle. 2. Clean all contact points on brake lining and brake caliper/carrier. 3. Clean bonding surface \(where pistons contact back of brake pad\). Apply adhesive film to the backplate of the piston\-side brake lining. For 6 piston calipers, only in the area of the center piston. For other piston caliper configurations less than 6, apply where the piston\(s\) makes contact with the back of the pad. 4. Chamfer edges \(round off sharp leading edges\) on brake pads. See picture "Chamfered Pads". 5. After installing the brake linings, actuate the brake for 30 seconds. b\) If the noises are coming from the rear axle =\> Affix linings with adhesive film and grease the lining as per the specification \(see attachments for rear axle\). 1. Remove brake pads of rear axle. 2. Cleaning all contact points on brake lining and brake caliper/carrier. 3. Grease contact points \(red areas\) between brake lining and guide of brake caliper with heat\-resistant lubricating paste. 4. Clean bonding surface \(where pistons contact back of brake pad\). Apply adhesive film to the backplate of the piston\-side brake lining. 5. Chamfer edges \(round off sharp leading edges\) on brake pads. See picture "Chamfered Pads". IMPORTANT: Be absolutely certain to not allow paste between friction surfaces of the pad and disc\! 3. Brake Bedding Process: a\) Before trip, the mileage incurred must be clarified with the customer \(approx. 30 miles\). b\) Select a suitable route so speeds of approximately 65 MPH can be achieved. c\) Brake the vehicle 15 times with a brake pressure of approx. 30 bar \(have the passenger read it out using XENTRY\) from 62 MPH to 30 MPH \(no emergency stops and no braking in the ESP control range\). Maintain a cooling distance of approx. 1 mile between brake applications. d\) Finally drive approx. 3 miles to allow the system to cool. e\) Reassess noise. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014412-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014412-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Brakes ## Vehicles listed - 2015 MERCEDES BENZ REDUNDANT C63 AMG - 2023 to 2024 MERCEDES\-BENZ AMG C43 - 2010 to 2021 MERCEDES\-BENZ AMG C63 - 2019 to 2021 MERCEDES\-BENZ AMG C63 S - 2023 MERCEDES\-BENZ AMG C63 S - 2024 MERCEDES\-BENZ AMG C63 S E - 2015 to 2017 MERCEDES\-BENZ AMG C63S - 2014 to 2024 MERCEDES\-BENZ AMG CLA45 - 2024 MERCEDES\-BENZ AMG CLE53 - 2019 to 2021 MERCEDES\-BENZ AMG CLS53 - 2010 to 2011 MERCEDES\-BENZ AMG CLS63 - 2017 MERCEDES\-BENZ AMG CLS63 - 2019 to 2023 MERCEDES\-BENZ AMG E53 - 2018 MERCEDES\-BENZ AMG E63 - 2023 MERCEDES\-BENZ AMG E63 S - 2014 to 2015 MERCEDES\-BENZ AMG E63S - 2018 to 2022 MERCEDES\-BENZ AMG E63S - 2013 to 2024 MERCEDES\-BENZ AMG G63 - 2024 to 2025 MERCEDES\-BENZ AMG GLA 35 - 2021 to 2023 MERCEDES\-BENZ AMG GLA35 - 2015 to 2019 MERCEDES\-BENZ AMG GLA45 - 2021 to 2023 MERCEDES\-BENZ AMG GLA45 - 2021 to 2025 MERCEDES\-BENZ AMG GLB35 - 2024 MERCEDES\-BENZ AMG GLC43 - 2018 to 2022 MERCEDES\-BENZ AMG GLC63 - 2020 to 2023 MERCEDES\-BENZ AMG GLC63 S - 2024 MERCEDES\-BENZ AMG GLC63 S E - 2018 to 2019 MERCEDES\-BENZ AMG GLC63S - 2021 to 2022 MERCEDES\-BENZ AMG GLE53 - 2023 to 2024 MERCEDES\-BENZ AMG GLE53 4MATIC\+ - 2016 to 2019 MERCEDES\-BENZ AMG GLE63 - 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S - 2023 to 2024 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+ - 2018 MERCEDES\-BENZ AMG GLE63S - 2017 to 2022 MERCEDES\-BENZ AMG GLS63 - 2023 to 2024 MERCEDES\-BENZ AMG GLS63 4MATIC\+ - 2017 to 2021 MERCEDES\-BENZ AMG GT - 2018 to 2020 MERCEDES\-BENZ AMG GT R - 2016 to 2019 MERCEDES\-BENZ AMG GT S - 2024 MERCEDES\-BENZ AMG GT55 - 2024 MERCEDES\-BENZ AMG GT63 - 2010 to 2015 MERCEDES\-BENZ AMG ML63 - 2013 MERCEDES\-BENZ AMG S63 - 2015 to 2021 MERCEDES\-BENZ AMG S63 - 2015 to 2020 MERCEDES\-BENZ AMG S65 - 2023 to 2024 MERCEDES\-BENZ AMG SL43 - 2022 to 2024 MERCEDES\-BENZ AMG SL55 - 2016 MERCEDES\-BENZ AMG SL63 - 2018 to 2019 MERCEDES\-BENZ AMG SL63 - 2022 to 2023 MERCEDES\-BENZ AMG SL63 - 2024 MERCEDES\-BENZ AMG SL63 S E - 2017 to 2018 MERCEDES\-BENZ AMG SL65 - 2013 MERCEDES\-BENZ AMG SLK55 - 2015 MERCEDES\-BENZ AMG SLK55 - 2011 to 2012 MERCEDES\-BENZ AMG SLS - 2022 to 2024 MERCEDES\-BENZ C 300 - 2011 MERCEDES\-BENZ C63 - 2010 to 2014 MERCEDES\-BENZ CL600 - 2010 to 2014 MERCEDES\-BENZ CL63 - 2010 to 2014 MERCEDES\-BENZ CL65 - 2024 MERCEDES\-BENZ CLE 300 - 2024 MERCEDES\-BENZ CLE 450 - 2019 to 2023 MERCEDES\-BENZ CLS 450 - 2016 MERCEDES\-BENZ CLS 63S - 2012 to 2014 MERCEDES\-BENZ CLS63 - 2014 to 2015 MERCEDES\-BENZ CLS63S - 2024 to 2025 MERCEDES\-BENZ E 350 - 2025 MERCEDES\-BENZ E 350 4MATIC - 2021 to 2024 MERCEDES\-BENZ E 450 - 2025 MERCEDES\-BENZ E 450 4MATIC - 2025 MERCEDES\-BENZ E 450 4MATIC ALL\-TERRAIN - 2010 to 2014 MERCEDES\-BENZ E63 - 2013 to 2017 MERCEDES\-BENZ G63 - 2013 to 2016 MERCEDES\-BENZ GL63 - 2021 to 2025 MERCEDES\-BENZ GLA 250 - 2020 to 2025 MERCEDES\-BENZ GLB 250 - 2023 to 2025 MERCEDES\-BENZ GLC 300 - 2024 MERCEDES\-BENZ GLC 300 COUPE - 2025 MERCEDES\-BENZ GLC 350 E 4MATIC - 2020 to 2024 MERCEDES\-BENZ GLE 350 - 2025 MERCEDES\-BENZ GLE 350 4MATIC - 2020 to 2024 MERCEDES\-BENZ GLE 450 - 2024 to 2025 MERCEDES\-BENZ GLE 450E 4MATIC - 2020 to 2021 MERCEDES\-BENZ GLE 580 - 2022 to 2024 MERCEDES\-BENZ GLE 580 4MATIC - 2016 to 2017 MERCEDES\-BENZ GLE63S - 2019 to 2020 MERCEDES\-BENZ GLS 450 - 2022 to 2024 MERCEDES\-BENZ GLS 450 4MATIC - 2020 MERCEDES\-BENZ GLS 580 4MATIC - 2022 to 2024 MERCEDES\-BENZ GLS 580 4MATIC - 2021 MERCEDES\-BENZ GLS450 - 2021 MERCEDES\-BENZ GLS580 - 2011 MERCEDES\-BENZ ML63 - 2021 MERCEDES\-BENZ S 500 - 2023 MERCEDES\-BENZ S 500 - 2022 MERCEDES\-BENZ S 500 4MATIC - 2024 MERCEDES\-BENZ S 500 4MATIC - 2021 MERCEDES\-BENZ S 580 - 2023 MERCEDES\-BENZ S 580 - 2022 MERCEDES\-BENZ S 580 4MATIC - 2024 MERCEDES\-BENZ S 580 4MATIC - 2023 MERCEDES\-BENZ S 580 E - 2024 MERCEDES\-BENZ S 580 E 4MATIC - 2011 to 2012 MERCEDES\-BENZ S63 - 2017 MERCEDES\-BENZ S63 - 2017 MERCEDES\-BENZ S65 AMG - 2013 to 2015 MERCEDES\-BENZ SL63 - 2017 MERCEDES\-BENZ SL63 - 2013 to 2015 MERCEDES\-BENZ SL65 - 2014 MERCEDES\-BENZ SLK55 - 2016 MERCEDES\-BENZ SLK55 AMG - 2013 to 2014 MERCEDES\-BENZ SLS - 2021 MERCEDES\-MAYBACH GLS 600 - 2022 to 2024 MERCEDES\-MAYBACH GLS 600 4MATIC - 2021 MERCEDES\-MAYBACH S 580 - 2022 to 2024 MERCEDES\-MAYBACH S 580 4MATIC - 2018 to 2019 MERCEDES\-MAYBACH S 650 - 2023 to 2024 MERCEDES\-MAYBACH S 680 - 2022 MERCEDES\-MAYBACH S 680 4MATIC - 2017 MERCEDES\-MAYBACH S650 JSON: [/v1/bulletins/11014412](/v1/bulletins/11014412) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LI42.10-P-063502&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11014412&vehicle=Service%20bulletin%20LI42.10-P-063502)