{"nhtsa_id":10207193,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-02-04","date":"2022-01-27","document_id":"LI32.50-P-074277","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SUSPENSION","mfr_system":null,"summary":"Complaint 1. Noises in recovery mode with the vehicle stationary 2. Noises when driving in a straight line on rough terrain 3. Noises when cornering and performing alternate steering movements 4. Non-assignable noises Cause Complaint 1. Noises in recovery mode with the vehicle stationary Complaint 2. Noises when driving in a straight line on rough terrain Cause: These are normal operating noises of the hydraulic high-pressure pumps. Remedy Generally check whether the same noises also occur in ECO mode - in this mode the Preview/ROAD SURFACE SCAN function is deactivated and the high-pressure pumps run at reduced speed. Consequently, it is possible to differentiate between normal operating noises and unusual noises. Regarding 1, 2: Explain the high-pressure system, replacing the suspension struts or pumps is not useful, as these noises are caused by the high-pressure pump unit and should be regarded as normal operating noises. Regarding 3: This is currently a normal operating noise and represents the series production configuration; consequently replacing the components is not useful. Regarding 4: There will certainly be other unknown noises that we are not yet familiar with; therefore please report these as well. For all complaints, create a PTSS case and include: 1) Informative video recordings of the noises. 2) The driving situation in the drive program in which the noises occur should be shown. 3) For comparison, also attach a recording of this same driving situation in ECO mode. 4) Additional attachments required: - Logs for control units N51/8, M67, M67/1, M67/2, M67/3 - Actual values for the pressures of the four hydraulic high-pressure pumps at standstill","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10207193-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10207193-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10207193","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"S 500 4MATIC","year_from":2022,"year_to":2022,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 580 4MATIC","year_from":2022,"year_to":2022,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 680 4MATIC","year_from":2022,"year_to":2022,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"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.","attribution":[]}