# Service bulletin LI82.10\-P\-078304 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: 11007790 - Published by NHTSA: 2024\-09\-14 - Manufacturer's number: LI82.10\-P\-078304 - Manufacturer's date: 2024\-09\-09 - NHTSA component: EXTERIOR LIGHTING ## NHTSA's summary Complaint Headlamps fogged or droplets forming. Cause Due to the housing cover with pressure compensation diaphragm, the headlamps are a "closed system". This means that the headlamps are protected against acid gases, dirt and exhaust gas. However, moisture can still enter from two sources. Through absorption and desorption \(the commonest cause\) or through permeation. Moisture is either absorbed by the plastic material and, when the light source is switched on, it is released from the plastic by desorption, or the moisture penetrates through the plastic materials of the headlamp from outside \(permeation\). This can lead to the formation of condensation on the lens of the headlamp. The headlamps comply with all applicable US standards and regulations. Remedy Check headlamps for natural fogging or condensation as per LI82.10\-P\-078301. If a reduction in the degree of fogging is visible, the desiccant packs can be used once the condensation has completely evaporated. Note: Order service covers and desiccant packs based on the validity description. 1. Remove existing service cover with diaphragm \(Picture\_01 \(1\)\). 2. Insert desiccant packs \(Picture\_01 \(2\)\) into new service covers with diaphragm and seal with protective grille and bolt down \(Picture\_01 \(3\)\). Note: One desiccant pack is required for each small service cover, and two desiccant packs are required for each large service cover. 3. Stick the supplied diaphragm onto the new service cover and attach at the headlamp. Note: The bonding surface must be clean and dry. 4. If the headlamp housing has an additional 2nd diaphragm, this must be covered over with masking tape. Note: The bonding surface must be clean and dry. To ensure that the desiccant pack \(absorption\) acts effectively, the headlamp has to be air\-sealed. Observe or check the following points for this: 1. Seals at the central connector must all be present and correctly fitted \(Picture\_02\). 2. The new transparent diaphragm must be correctly bonded \(Picture\_03\). 3. Check headlamp housing for any external damage. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11007790-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11007790-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Lighting ## Vehicles listed - 2007 to 2009 MERCEDES BENZ R320 - 2006 to 2007 MERCEDES BENZ R500 - 2007 MERCEDES BENZ R63 - 2016 to 2024 MERCEDES\-BENZ AMG C43 - 2015 to 2021 MERCEDES\-BENZ AMG C63 - 2019 to 2021 MERCEDES\-BENZ AMG C63 S - 2023 MERCEDES\-BENZ AMG C63 S - 2015 to 2018 MERCEDES\-BENZ AMG C63S - 2014 to 2019 MERCEDES\-BENZ AMG CLA45 - 2019 to 2021 MERCEDES\-BENZ AMG CLS53 - 2015 to 2019 MERCEDES\-BENZ AMG GLA45 - 2021 to 2024 MERCEDES\-BENZ AMG GLB35 - 2017 to 2023 MERCEDES\-BENZ AMG GLC43 - 2018 to 2022 MERCEDES\-BENZ AMG GLC63 - 2020 to 2021 MERCEDES\-BENZ AMG GLC63 S - 2018 to 2019 MERCEDES\-BENZ AMG GLC63S - 2017 to 2019 MERCEDES\-BENZ AMG GLE43 - 2016 to 2019 MERCEDES\-BENZ AMG GLE63 - 2018 MERCEDES\-BENZ AMG GLE63S - 2017 to 2019 MERCEDES\-BENZ AMG GLS63 - 2012 to 2015 MERCEDES\-BENZ AMG ML63 - 2014 to 2020 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 - 2017 to 2020 MERCEDES\-BENZ AMG SLC43 - 2013 MERCEDES\-BENZ AMG SLK55 - 2015 MERCEDES\-BENZ AMG SLK55 - 2017 to 2024 MERCEDES\-BENZ C 300 - 2018 MERCEDES\-BENZ C 350 E - 2015 to 2016 MERCEDES\-BENZ C300 - 2016 to 2017 MERCEDES\-BENZ C350E - 2015 MERCEDES\-BENZ C400 - 2016 to 2017 MERCEDES\-BENZ C450 - 2018 to 2019 MERCEDES\-BENZ CLA 250 - 2014 to 2017 MERCEDES\-BENZ CLA250 - 2024 MERCEDES\-BENZ CLE 300 - 2024 MERCEDES\-BENZ CLE 450 - 2019 to 2023 MERCEDES\-BENZ CLS 450 - 2024 MERCEDES\-BENZ E 350 - 2024 MERCEDES\-BENZ E 450 - 2010 to 2015 MERCEDES\-BENZ E350 - 2015 to 2017 MERCEDES\-BENZ E400 - 2010 to 2017 MERCEDES\-BENZ E550 - 2023 to 2024 MERCEDES\-BENZ EQB 250\+ - 2022 to 2024 MERCEDES\-BENZ EQB 300 4MATIC - 2022 to 2024 MERCEDES\-BENZ EQB 350 4MATIC - 2023 to 2024 MERCEDES\-BENZ EQS SUV 450 4MATIC - 2023 to 2024 MERCEDES\-BENZ EQS SUV 450\+ - 2013 to 2016 MERCEDES\-BENZ GL350 - 2013 to 2017 MERCEDES\-BENZ GL450 - 2013 to 2017 MERCEDES\-BENZ GL550 - 2013 to 2016 MERCEDES\-BENZ GL63 - 2015 to 2020 MERCEDES\-BENZ GLA 250 - 2020 to 2024 MERCEDES\-BENZ GLB 250 - 2018 to 2023 MERCEDES\-BENZ GLC 300 - 2018 MERCEDES\-BENZ GLC 350 E - 2020 MERCEDES\-BENZ GLC 350 E - 2016 to 2017 MERCEDES\-BENZ GLC300 - 2019 MERCEDES\-BENZ GLC350E - 2018 MERCEDES\-BENZ GLE 350 - 2019 MERCEDES\-BENZ GLE 400 - 2018 MERCEDES\-BENZ GLE 550 E - 2016 MERCEDES\-BENZ GLE300D - 2016 to 2017 MERCEDES\-BENZ GLE350 - 2016 MERCEDES\-BENZ GLE350D - 2016 to 2017 MERCEDES\-BENZ GLE400 - 2016 to 2017 MERCEDES\-BENZ GLE550E - 2016 to 2017 MERCEDES\-BENZ GLE63S - 2018 to 2019 MERCEDES\-BENZ GLS 450 - 2018 to 2019 MERCEDES\-BENZ GLS 550 - 2016 to 2017 MERCEDES\-BENZ GLS450 - 2017 MERCEDES\-BENZ GLS550 - 2015 MERCEDES\-BENZ ML250 - 2012 to 2015 MERCEDES\-BENZ ML350 - 2015 MERCEDES\-BENZ ML400 - 2012 to 2014 MERCEDES\-BENZ ML550 - 2010 MERCEDES\-BENZ R320 - 2006 to 2012 MERCEDES\-BENZ R350 - 2018 to 2020 MERCEDES\-BENZ S 450 - 2021 MERCEDES\-BENZ S 500 - 2023 MERCEDES\-BENZ S 500 - 2022 MERCEDES\-BENZ S 500 4MATIC - 2024 MERCEDES\-BENZ S 500 4MATIC - 2019 to 2020 MERCEDES\-BENZ S 560 E - 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 - 2014 to 2017 MERCEDES\-BENZ S550 - 2016 MERCEDES\-BENZ S550 HYBRID - 2015 MERCEDES\-BENZ S550E - 2017 MERCEDES\-BENZ S550E - 2015 to 2017 MERCEDES\-BENZ S600 - 2018 to 2020 MERCEDES\-BENZ SL 450 - 2018 to 2020 MERCEDES\-BENZ SL 550 - 2015 to 2016 MERCEDES\-BENZ SL400 - 2017 MERCEDES\-BENZ SL450 - 2013 to 2017 MERCEDES\-BENZ SL550 - 2013 to 2015 MERCEDES\-BENZ SL63 - 2017 MERCEDES\-BENZ SL63 - 2013 to 2015 MERCEDES\-BENZ SL65 - 2018 to 2020 MERCEDES\-BENZ SLC 300 - 2016 to 2017 MERCEDES\-BENZ SLC300 - 2014 to 2015 MERCEDES\-BENZ SLK250 - 2016 MERCEDES\-BENZ SLK300 - 2012 to 2016 MERCEDES\-BENZ SLK350 - 2014 MERCEDES\-BENZ SLK55 - 2016 MERCEDES\-BENZ SLK55 AMG - 2015 MERCEDES\-BENZ redundant S550E - 2013 MERCEDES\-BENz SLK250 - 2018 to 2020 MERCEDES\-MAYBACH S 560 4MATIC - 2021 MERCEDES\-MAYBACH S 580 - 2022 to 2024 MERCEDES\-MAYBACH S 580 4MATIC - 2018 to 2020 MERCEDES\-MAYBACH S 650 - 2023 to 2024 MERCEDES\-MAYBACH S 680 - 2022 MERCEDES\-MAYBACH S 680 4MATIC - 2017 MERCEDES\-MAYBACH S550 - 2017 MERCEDES\-MAYBACH S600 JSON: [/v1/bulletins/11007790](/v1/bulletins/11007790) [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%20LI82.10-P-078304&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11007790&vehicle=Service%20bulletin%20LI82.10-P-078304)