2021 Mercedes-Benz GLC 300 Technical Service Bulletins

218 technical service bulletins (TSBs) are on record for the 2021 Mercedes-Benz GLC 300. 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.

• 10191271Mar 24, 2021Electrical system. Engine switches off again when re-attempting Remote Start via Mercedes me App. This only occurs if the first Remote Start via the Mercedes me App was canceled and then started again. If the first attempt was stopped by unlocking the doors or if the engine ran for more than 10 minutes, then the second attempt is also successful
• 10191288Mar 19, 2021Electrical system. After ignition ON, the following message is shown on the instrument cluster: - "Unavailable! - ESP - Service Required"
• 10191272Mar 19, 2021Steering. Steering wheel heater and/or Distronic cannot be activated. Remedy: Update software for steering wheel electronics control unit ("N 135 - Steering wheel electronics (LRE)"). Should the quick test carried out after the software update still show DTCs with the steering wheel heater and/or Distronic, replace the steering wheel control panels
• 10191278Mar 16, 2021Electrical system. Fault in 12 V interlock circuit
• 10194142Mar 2, 2021Air bags, Electrical system, Transmission and drivetrain, Electronic stability…. When accelerating at low speeds (slow roll at < 9 mph, 2nd gear), the engine limp-home mode may be triggered which in turn limits the amount of power available. When a fault occurs, the fault message ESP off or a fault message from the driver assistance systems is displayed. The quick test shows that fault code P061B62 is stored Note: It is possible to continue driving slowly. The fault is reset after an…
• 10189407Feb 24, 2021Electrical system, Equipment. In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17)
• 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…
• 10187785Jan 4, 2021Electrical system, Equipment, Other or unknown. The following complaints may be noted by the customer: - The MBUX multimedia system (A26/17) starts route guidance without user input and does not provide any audio notification. - The MBUX multimedia system (A26/17) does not give any spoken or visual driving instructions. Only the destination information and the current route are shown in the MBUX multimedia system (A26/17)
• 10187784Jan 4, 2021Equipment, Electrical system. The customer complains that when the ignition is switched on, pulsating buzzing noises which fluctuate in volume can be heard coming from the area of the instrument panel or the driver's footwell.
• 10205242Nov 29, 2016Equipment. Navigation system permanently displays "Activating".
• 10205240Aug 29, 2016Equipment. Reset the customer-specific data and perform a software update of the AUDIO20 control unit.
• 10205247Aug 25, 2016Equipment. Traffic information service and posibly the voice control, nonfunctional after navigation software update.
• 10205241Aug 25, 2016Equipment. Navigation system permanently displays "Activating".
• 10205230Aug 15, 2016Equipment. CD/DVD No longer ejected or drawn in.
• 10205252Aug 11, 2016Electrical system. High voltage battery warning message in instrument cluster.
• 10205154Aug 5, 2016Other or unknown, Engine cooling. Gasket may settle causing a slight oil leak.
• 10205222Aug 1, 2016Exterior lighting. Operation complaints for LED headlamps.
• 10205214Jul 30, 2013Body and structure, Other or unknown. Noises when opening and closing automatic liftgate.

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