2020 Mercedes-Benz GLA 250 Technical Service Bulletins

142 technical service bulletins (TSBs) are on record for the 2020 Mercedes-Benz GLA 250. 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.

• 10227146Nov 17, 2022Body and structure. Complaint Staining on door trim strips and top and bottom trim elements on rear side windows Cause Damage to protective coating (due to poor original optimization of coating) of door beltline trim strips, door upper trim strips and side window trim element. Remedy 1. Check if the complaint cannot be rectified by polishing the trim bars with the polish. 2.
• 10227143Nov 1, 2022Steering. Complaint Squeaking noise from area of input shaft of electric steering Cause Inadequate lubrication. Remedy Grease/lubricate sealing area of input shaft. • The steering components can be greased/lubricated while they are still installed
• 10225807Oct 1, 2022Engine cooling. Complaint Chirping or tapping noise originating in area of front crankshaft pulley when engine cold. Noise may lessen as engine reaches operating temperature. Attachments File Description M260 noise.mp4 Noise example Cause Harmonics from timing chain drive. Remedy Replace timing chain tensioner with part A2600502000. Note: This noise will not cause damage to the engine or other symptoms. The chain tensioner should…
• 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…
• 10219265Aug 2, 2022Steering. Complaint Vibrations in steering at speeds lower than 30 mph. Possible when turning and also partly noticeable after changing to winter or all-season tires. Cause Controller stability of steering software, caused by reduced friction in steering (tolerance for production + running-in characteristics). Remedy Software update available in 1st quarter of 2023 (adaptation of stability limits)
• 10217159Jul 20, 2022Electrical system, Engine cooling, Equipment. Complaint - Vehicle cannot be unlocked/ vehicle does not start - Display message in instrument cluster "Battery - Start Engine - see Operator's Manual Cause Root cause is a bus keepawake in either the Headlight control unit or in one of the following: ALC, IC, SAM, PTCU, ESP. Additionally, the quick test will show U116000 "A bus keepawake control unit has been detected" in the electronic ignition switch…
• 10217158Jul 11, 2022Equipment, Steering. Complaint Noises from the area of the steering column. - Creaking - Squeaking - Chattering - Humming - Grinding Cause At present, there are no known noise problems with the steering column. Remedy Check surrounding area of the steering column for possible noises. - Instrument panel support - Steering column switch module If the cause of the noise can be narrowed down to the steering column, create a PTSS case
• 10217163Jul 8, 2022Equipment, Electrical system. Complaint The Apple Carplay interface cannot be controlled via the center console touchpad or the right-hand steering wheel touchpad. Cause A setting on the iPhone may prevent control via the touchpad Remedy To remedy on the affected iPhone, navigate to "Settings" -> "Accessibility" -> "Touch" and turn the "BackTap" option OFF.
• 10213049May 9, 2022Steering. Complaint Squeaking noise from area of input shaft of electric steering Cause Inadequate lubrication. Remedy Grease/lubricate sealing area of input shaft.
• 10210929Apr 14, 2022Electrical system. Complaint Volume and bass level too low Cause Current sound amp (N40/3) software release. Important: • On vehicles with standard sound, the rear subwoofer (H21/35) emits the engine sound only (if equipped with M139 engine) • On vehicles with code 853 (Advanced Sound) or 810 (Premium Sound), the rear subwoofer (H21/35) emits not only the engine sound, but also entertainment sound Remedy Perform a software update…
• 10210926Apr 1, 2022Electrical system, Wheels. Complaint Fault message (yellow) in instrument cluster and TPM warning lamp. Individual or all tire pressure sensors are not recognized. Tire pressure monitoring system nonfunctional / temporarily unavailable. Cause Tires with excessively-large radio signal attenuation interfere with transmission of the tire pressure sensors. Remedy Check if one of the following tires is installed: If one of the tires listed above…
• 10208670Feb 25, 2022Electrical system. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has produced certain MY 2021-2022 A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLE-Class, GLS-Class, and GT-Class (167, 177, 213, 247, 257, and 290 platform) vehicles without the augmented reality camera (“ARC”), as disclosed at the time of sale to the vehicle purchaser. As a result, the ARC and "Dash-cam" functions are currently not enabled.
• 10206077Dec 8, 2021Engine cooling. "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
• 10199660Jul 8, 2021Engine cooling, Visibility (wipers, defrost, mirrors), Equipment. Coolant warning in instrument cluster - Leak in coolant line
• 10199654Jul 6, 2021Equipment. "Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional"
• 10199449Jul 2, 2021Equipment. Launch NCU - 2021030010 MY20-21 Various Add Supplementary Booklet to Printed Operators Manual
• 10195221Apr 20, 2021Equipment, Engine cooling, Electrical system. with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature"
• 10194141Mar 31, 2021Equipment. New map data cannot be downloaded by the customer from the Mercedes me PortalNew map data cannot be downloaded by the customer from the Mercedes me Portal
• 10191289Mar 29, 2021Equipment. Message (yellow) in IC "Active Brake Assist currently restricted, see operator's manual, Remedy: Deactivate transport mode and drive vehicle for approx 6mi. The DTC then switches to passive and the sensor can be calibrated
• 10191267Mar 29, 2021Lane departure. X247 code 233 - Blind Spot Assist inoperative (fault message in IC) - Fault code C110178 due Positioning of rear left radar sensor
• 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
• 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
• 10191281Mar 12, 2021Suspension. Humming noises or vibrations from the area of the rear axle when maneuvering or moving off at traffic lights/intersections.
• 10191276Mar 10, 2021Steering. Noise from the front axle when steering while stationary or when steering at low speeds
• 10191286Mar 9, 2021Steering. Slight grinding noise when steering is turned to full lock
• 10189407Feb 24, 2021Equipment, Electrical system. 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)
• 10187785Jan 4, 2021Other or unknown, Electrical system, Equipment. 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)
• 10186147Dec 30, 2020Visibility (wipers, defrost, mirrors). Air Conditioning System Occasionally Does Not Cool Correctly At Outside Temperatures Above 40°C
• 10186134Nov 12, 2020Transmission and drivetrain. Communication errors with control unit AWD_M- FA2 - N15/17 - All-wheel drive (transfer case)
• 10186133Nov 12, 2020Electrical system. Fault code for short circuit to ground stored in AW- D_MFA2 - N15/17 - all-wheel drive (transfer case)
• 10181200Sep 25, 2020Transmission and drivetrain. Replace automatic transmission
• 10186132Sep 12, 2020Transmission and drivetrain. Humming/ vibrations/ noises from the area of the rear axle while maneuvering or when moving off
• 10181194Aug 31, 2020Seats, Equipment. BR167 / MFA2 Cracks In Artico Seat Cushion Cover On Front Seat
• 10179976Aug 28, 2020Brakes. Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY 2019-2021 A-Class (177 platform), CLA-Class (118 platform), GLA-Class (247 platform), and GLB-Class (247 platform) vehicles might not be equipped with a means to check the wear status of the brake pads on the rear axle. Furthermore, information regarding the brake gauge and its operation might not be included in…
• 10179966Jul 31, 2020Equipment, Other or unknown. Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional
• 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.
• 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
• 10169586Nov 14, 2019Equipment. EASY-Pack liftgate does not fully open
• 10205247Aug 25, 2016Equipment. Traffic information service and posibly the voice control, nonfunctional after navigation software update.
• 10205143Aug 15, 2016Equipment, Transmission and drivetrain. Clacking noises from the front axle area.
• 10205154Aug 5, 2016Engine cooling, Other or unknown. Gasket may settle causing a slight oil leak.

← All problems reported for the 2020 Mercedes-Benz GLA 250