2020 Mercedes-Benz GLS 450 Technical Service Bulletins

270 technical service bulletins (TSBs) are on record for the 2020 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.

• 10191257Mar 5, 2021Air bags. Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 Platform) vehicles, the supplementantal restraint system ("SRS") control unit software does not correspond to the current production specification. All regulatory specifications are nevertheless met and a potential safety relevance can be be ruled out.
• 10189408Feb 23, 2021Body and structure, Seats. The seat cushion cover on the front seat cracks when side bolster is equipped with "ARTICO man-made leather upholstery". For vehicles equipped with "ARTICO man-made leather upholstery/DINAMICA microfiber - black (601A)", please create a PTSS case straight away.
• 10189406Feb 22, 2021Back-over prevention (rear camera). If the exhaust flap is operated or the drive program is changed within 10 seconds of the engine being started, an audible humming noise may emit from the speakers. New sound amp (N40/3) software is currently in development. This document will be updated once it is released. Meanwhile, avoid toggling the drive program or the exhaust flap with 10 seconds of an engine start to avoid the possibility of the complaint…
• 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
• 10187783Jan 4, 2021Seats. The backrests of the second seat row (60% and 40% side) are offset relative to each other.
• 10186145Dec 8, 2020Visibility (wipers, defrost, mirrors). Creaking noise from fixed glass section of panoramic roof in area of rear passenger compartment grab handles
• 10184796Nov 13, 2020Equipment, Tires. Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year ("MY") 2020-2021 GLE-Class (167 platform) and GLS-Class (X167 platform) vehicles equipped with Michelin Primacy Tour A/S tires, the maximum tire pressure specified on the tire placard located on the B-pillar and on the fuel filler door is inconsistent with the maximum permissible tire pressure listed on…
• 10184793Nov 6, 2020Equipment, Suspension. Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 GLS-Class vehicles (X167 platform), the stop plate on the front axle suspension struts may not have been installed correctly on the support ring. It is possible that the vehicle level may lower to that of the bump stops.
• 10181200Sep 25, 2020Transmission and drivetrain. Replace automatic transmission
• 10177565Jun 25, 2020Equipment. The mobile phone address book is not transferred completely to the multimedia system (COMAND or MBUX). In some cases, the call list shows just the telephone numbers but no names. The problem only occurs in conjunction with the iPhone and software version iOS 13.x.
• 10176668May 22, 2020Electrical system. The software in the NTG5 control unit may not correspond with our internal specifications in the vehicles of the above-mentioned model series transferred to you. For this reason, the possibility exists that the automatic car wash mode may be activated after ignition ON/OFF.
• 10176663May 19, 2020Engine. Check engine indicator light active and fault code P261029/P02FF85/P02FF02 stored in engine control unit
• 10172683Feb 7, 2020Tires, Equipment. Information Label on Tire Sealant
• 10170531Dec 10, 2019Exterior lighting. 167 GLS headlight low beam fault
• 10169586Nov 14, 2019Equipment. EASY-Pack liftgate does not fully open
• 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.

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