2019 Mercedes-Benz GLS 450 Technical Service Bulletins

126 technical service bulletins (TSBs) are on record for the 2019 Mercedes-Benz GLS 450. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10222481Sep 8, 2022Electrical system. Complaint Customer states after a bus sleep the SiriusXM category changes from "My Favorites" to "All Stations" or a different category. Sometimes, the "My Favorites" category will be unavailable for the entire drive cycle. Cause Current MBUX Multimedia System (A26/17) software release Remedy Software update of MBUX Multimedia System (A26/17) to E905.4 (in development). This document will be…
• 10222468Sep 6, 2022Transmission and drivetrain. Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault code B1FCB97 follow LI54.10-P-073164. Various causes are possible. The faults listed in the various causes do not all have to be present at all times. Some of these complaints may overlap. Rely on the faults listed in the Cause section for…
• 10210925Apr 18, 2022Suspension. Cause Communication fault between electrohydraulic suspension component parts through out-of-date software (application software and bootloader software). Remedy With the latest hardware item number for the electrohydraulic pump units A167 901 62 03, the new application software A167 902 31 12 and the new bootloader software A167 904 18 01 have to be flashed. With older hardware item numbers, please open a PTSS case.
• 10210931Apr 13, 2022Electrical system, Seats. Complaint • Seats cannot be adjusted • Seats cannot be folded • Seats in the 2nd seat row cannot be locked or unlocked • Normalization cannot be performed in its entirety using XENTRY Cause Under analysis Remedy *Make sure a battery charger is connected to vehicle while performing all testing* Please perform the following checks that help to resolve most concerns: #1 - Make sure seat control units have…
• 10206077Dec 8, 2021Engine cooling. "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
• 10205835Sep 16, 2021Other or unknown, Back-over prevention (rear camera), Body and structure. Model series 167 noise on B/C/D pillars.
• 10205794Aug 11, 2021Body and structure, Visibility (wipers, defrost, mirrors). Excessive resistance of door side windows when being raised/lowered, cracking and squeaking noises.
• 10199654Jul 6, 2021Equipment. "Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional"
• 10195220Apr 20, 2021Electrical system. For plug in hybrid and electric variants: Complaints about the electric range
• 10187787Jan 4, 2021Suspension, Equipment. Warning display message for eSuspension, various causes and remedies listed.
• 10187786Jan 4, 2021Steering, Equipment, Suspension. 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
• 10186145Dec 8, 2020Visibility (wipers, defrost, mirrors). Creaking noise from fixed glass section of panoramic roof in area of rear passenger compartment grab handles
• 11031594Oct 29, 2020Visibility (wipers, defrost, mirrors). This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be carried out. To enhance the satisfaction of our customers, avoid further costs of litigation, and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold…
• 10181201Sep 11, 2020Fuel system. Replace exhaust gas cleaning information label
• 10172683Feb 7, 2020Tires, Equipment. Information Label on Tire Sealant
• 10170531Dec 10, 2019Exterior lighting. 167 GLS headlight low beam fault
• 10162631Jun 27, 2019Visibility (wipers, defrost, mirrors). Outside mirror folding out/in nonfunctional
• 10162611Jun 18, 2019Electrical system. Head-up display (HUD) code 463 ? lines on the display, display flickers
• 10162179May 3, 2019Suspension. Check right and left torsion bar linkage, replace if necessary
• 10160627Apr 9, 2019Suspension. G Facelift 2018: Knocking noises from rear area on rough roads
• 10158339Oct 18, 2017Electrical system. Fault message "AIRMATIC" or "Active Curve System" in instrument cluster
• 10205147Nov 14, 2016Engine cooling. Ticking or pulsing noise from high-pressure pump and/or fuel injectors.
• 10205251Aug 17, 2016Electrical system. Engine fan runs continuously, a/c inoperable or, engine light illuminates sporadically.
• 10205250Aug 11, 2016Electrical system. Engine fan runs continuously, a/c inoperable or, engine light illuminates sporadically.
• 10205154Aug 5, 2016Engine cooling, Other or unknown. Gasket may settle causing a slight oil leak.
• 10167487Mar 21, 2014Fuel system, Electrical system. Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump. 2. Right cylinder head: Oil passage plug hole below high-pressure pump housing.

← All problems reported for the 2019 Mercedes-Benz GLS 450