2023 Mercedes-Benz Sprinter 3500 Technical Service Bulletins

107 technical service bulletins (TSBs) are on record for the 2023 Mercedes-Benz Sprinter 3500. 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.

• 11038169Sep 29, 2026Brakes. Brakes may lock up when reversing at slow speeds Complaint When reversing slowly, the vehicle erroneously triggers an emergency braking event, causing the brakes to lock up. Engine may not start following a key cycle. Cause The vehicle triggers a maneuvering or emergency braking event while reversing. The customer must then immediately park the vehicle (ignition Switched OFF) The hydraulic pressure release process…
• 11038718Sep 26, 2026Other or unknown. Fuel Level Unchanged After Refueling Complaint The customer reports that the fuel gauge shows inaccurate readings or remains unchanged after refueling. Cause The fuel level display may be incorrect due to one or both of the following conditions: 1. The Fuel Supply Control Unit (FSCU) may not recognize a refueling event if the Controller Area Network (CAN) does not enter sleep mode.
• 11038170Sep 19, 2026Other or unknown. Unavailability of MB Apps Complaint A popup is seen on the HU with the message "data connection temporarily not available". Cause MB Apps is officially sundowned for all vehicles with NTG5 Head Unit Variant. Remedy No support available for NTG5 Head Unit Variants for MB App related topics.
• 11038717Sep 2, 2026Engine. Coolant warning light (MIL) lights up on the display Complaint The coolant warning lamp may be displayed in the instrument cluster. The malfunction indicator lamp (MIL) may also be illuminated. Cause Moisture or corrosion may be present in the connector of the low‑temperature circuit switchover valve (Y97/6) or coolant pump 1 (M75/11). Remedy Inspect the connectors and pins at the low‑temperature circuit switchover…
• 11036855Aug 26, 2026Transmission and drivetrain. Complaint While driving through muddy / sandy/ off road terrain "4Matic Currently Unavailable" message on the dash Cause This vehicle is not equipped with a fixed force distribution AWD, rather force is only applied to the front axle according to ESP calculations. As per GF28.00‑D‑ 9900A: "vehicles with 4MATIC all‑wheel system and variable force distribution, an electronically regulated multiplate clutch integrated…
• 11036850Aug 6, 2026Transmission and drivetrain. Complaint The coolant warning lamp may be displayed in the instrument cluster. The malfunction indicator lamp (MIL) may also be illuminated. Cause Moisture or corrosion may be present in the connector of the low‑temperature circuit switchover valve (Y97/6) or coolant pump 1 (M75/11). Remedy Inspect the connectors and pins at the low‑temperature circuit switchover valve and coolant pump 1 for moisture, corrosion, or…
• 11036851Aug 5, 2026Transmission and drivetrain. OM654 Engine Oil Consumption Complaint The customer may report repeated low engine oil level warnings in the instrument cluster. The customer may also state that engine oil must be added between scheduled maintenance intervals. During diagnosis, oil residue may be observed at the oil filler neck, cylinder head cover, crankcase ventilation connection, charge air pipes, charge air cooler, intake tract, or…
• 11036846Aug 5, 2026Fuel system. Oil Leak at Crankcase Near the High-pressure Fuel Pump OM654 Complaint Visible oil leak at the crankcase near the mounting area of the high‑pressure fuel pump on OM654 engines. Cause Oil leakage near the high‑pressure fuel pump may result from insufficient sealing performance of the jump shaft seal and/or reduced sealing effectiveness at the interface between the high‑pressure fuel pump and crankcase.
• 11036853Aug 3, 2026Engine. Complaint Low Coolant warning with possible engine misfire caused by a leaking Charge Air Cooler (Intercooler), accompanied by one or more of the following possible fault codes related to the coolant system: P30040B: Component 'Temperature sensor downstream of charge air cooler' has an open circuit or short circuit to positive. P25567B: Sensor 'Coolant level' has a malfunction. The fluid level is too low. Cause The…
• 11035561Jul 24, 2026Other or unknown. An authorized Mercedes-Benz eSprinter dealer will update the drivetrain control unit on the affected vehicles. An authorized Mercedes-Benz Sprinter dealer will update the engine control unit on the affected vehicles.
• 11035562Jul 17, 2026Transmission and drivetrain. Model 907 with all-wheel drive (A4M) – All-wheel drive inoperative Complaint The customer may report one or more of the following: • All-wheel drive is unavailable or inoperative. • Rear wheel slip during acceleration on low-traction surfaces. • Noise from the front axle area while driving. • Message in the instrument cluster indicating all-wheel drive is unavailable due to overheating. • Fault code P27874B - The…
• 11035563Jul 1, 2026Other or unknown. ASSYST PLUS service reminder appears earlier than expected due to vehicle operating conditions Complaint The ASSYST PLUS service reminder appears earlier than expected. The customer or dealer may report that the vehicle did not reach the starting maintenance interval shown in vehicle documentation, option coding, sales literature, or the Owner's Manual.
• 11034408Jun 29, 2026Transmission and drivetrain. Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Boost Pressure Positioner: • P300A6D The boost pressure is too low. Charge Air Cooler. • P300974 Component 'Boost pressure positioner' has a malfunction. The boost pressure is too low. • P300DFB Component 'Boost pressure positioner' has a malfunction. • P300DE8 Boost pressure control A has a…
• 11034407Jun 18, 2026Fuel system. Complaint The customer reports that the engine cranks but does not start, or only starts after extended cranking. A check engine light may be present, and fault codes P300616 (The fuel pressure in the system is too low) and/or P300617 (The fuel pressure in the system is too low) may be stored, along with other fuel pressure-related fault codes. Cause Insufficient high-pressure fuel build-up during engine cranking.
• 11034406Jun 18, 2026Engine. Complaint The customer reports an exhaust odor from the engine compartment, potentially accompanied by a check engine light and/or engine misfire. Cause The injector hold-down may fracture due to material-related factors, allowing the injector to lift from its seat and resulting in combustion gas leakage past the sealing interface. Remedy Carry out repair measures in accordance with the extent of damage determined…
• 11034411Jun 16, 2026Fuel system. Fuel Level Unchanged After Refueling Complaint The customer reports that the fuel gauge shows inaccurate readings or remains unchanged after refueling. Cause A. The Fuel Supply Control Unit (FSCU) fails to detect a refueling event B. The Fuel Level Sensor provides incorrect readings due to mechanical interference or installation issues
• 11034410Jun 15, 2026Transmission and drivetrain. Complaint Complaint A: The engine is jolting/bucking between 1700 and 1900 rpm. Complaint B: One or more mechanical related fault codes for EGR Valve stored in CDI control unit, with possible Check Engine Light. Review list of mechanical fault codes in table below. NOTE: If one or more electrical related fault codes for EGR Valve are also present in CDI, utilize Complaint C. Review list of electrical fault codes…
• 11034417Jun 8, 2026Body and structure. Acoustic Warning or message occurring when a closed sliding door is not recognized Complaint Customer may state the warning message or indicator accompanied by acoustic tone alerting the sliding door is ajar when the door is completely closed Cause There are several reasons that lead to the failure occurring: - Mechanical damage through bending when loading and unloading - Worn contact plates --> After detachment…
• 11034415Jun 3, 2026Engine. Check engine light with reduced power –P300A6D due to charge air system contamination Complaint The check engine light is activated, accompanied by fault code 'P300A6D The boost pressure is too low', indicating reduced boost pressure.
• 11034414Jun 3, 2026Engine. OM654 Extended engine crank or starting concerns and/or poor running characteristics Complaint One or more of the following may be reported: • Extended crank or hard start • Rough idle or misfire like condition • Engine stalls during low-speed maneuvering Cause In some cases, one or more exhaust valves may be leaking due to: • Burnt exhaust valve seat rings • Burnt valve faces • Heavy carbon buildup on the exhaust…
• 11034409Jun 3, 2026Fuel system. Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Boost Pressure Positioner: • P300A6D The boost pressure is too low. Charge Air Cooler. • P300974 Component 'Boost pressure positioner' has a malfunction. The boost pressure is too low. • P300DFB Component 'Boost pressure positioner' has a malfunction. • P300DE8 Boost pressure control A has a…
• 11034412Jun 2, 2026Transmission and drivetrain. Complaint ASSYST values in XENTRY actual values and workshop menu of instrument cluster are implausibly excessive. Infor-mation: According to ASSYST values in XENTRY Diagnosis and the instrument cluster workshop menu, a larger jump (for example 20,000 km or 12,500 miles) has been detected within one ignition cycle that does not match the usual customer usage pattern/maintenance history.
• 11033160May 26, 2026Transmission and drivetrain. Sprinter 907 - Rear Axle Noise Diagnosis Best Practices Complaint Various noises from area of rear axle while driving Cause A: Howling Noises The high‑frequency howling noise is caused by the normal meshing behavior of the rear axle gear set, consisting of the pinion and crown gear. Two example noise recordings are provided in the attachment for reference. The volume and perception of this noise can vary depending…
• 11033165May 8, 2026Fuel system. Check engine light with fault code P3005CA in MRD1 (CDI) Complaint The check engine light is on, with a possiblility in a reduction of power and the presence of soot in the exhaust system. Fault code P3005CA: The diesel particulate filter efficiency is insufficient. Additional information: Additional fault codes may be present, related to the Diesel Particulate Filter (DPF) system or the Exhaust Gas Recirculation…
• 11031942Apr 29, 2026Fuel system. Complaint The customer reports that the fuel gauge shows inaccurate readings or remains unchanged after refueling. Cause A. The Fuel Supply Control Unit (FSCU) fails to detect a refueling event. B. The Fuel Level Sensor provides incorrect readings.
• 11031944Apr 9, 2026Body and structure. Complaint Crease formation on genuine leather seat covers in vehicles with low mileage Cause • objects left on the seats for extended periods of time (pressure marks) • objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle) • light initial creases due to vehicle handling • light creases in the outer covers originating from the production process (missing finish) Remedy Heat treatment of…
• 11030629Mar 23, 2026Fuel system. The check engine light is illuminated, or the AdBlue warning is active, with recorded faults related to AdBlue quality or concentration. Complaint Customer reports an illuminated check engine light and or an AdBlue system warning indicating AdBlue quality out of specification. The vehicle may enter reduced performance mode. One or more of the following fault codes related to the AdBlue tank may be stored: P206B31…
• 11030627Mar 23, 2026Fuel system. Check engine light or Adblue warning with fault codes P206B31, P203B31, or P300494 present in AdBlue (SCR) control unit (N118/5) Complaint The check engine light or AdBlue warning is activated, accompanied by one or more of the following fault codes related to the AdBlue tank: P206B31 Malfunction of the concentration sensor for AdBlue; the signal is absent. P203B31 Malfunction of the AdBlue fill level sensor; the…
• 11030626Mar 23, 2026Other or unknown. Vehicles with SCR Generation 4: SCR/AdBlue® warning message cannot be reset with fault code P13DF00 or P300685 Complaint SCR or AdBlue warning message cannot be reset. All fault codes in the AdBlue (SCR) control unit have been processed and corrected, however fault codes P13DF00 or P300685 remain active and stored. Cause The procedure for resetting the SCR or AdBlue warning message with XENTRY Diagnosis has not…
• 11029276Feb 26, 2026Other or unknown. In our continuing efforts to assure the proper performance of our products and to ensure the satisfaction of our customers, the warranty for the low pressure EGR differential pressure sensor in the vehicles listed below has been extended from 5 years/100,000 miles to 15 years/150,000 miles, whichever occurs first.
• 11029273Feb 24, 2026Engine. Check engine light or Adblue warning with fault codes P206B31, P203B31, or P300494 present in AdBlue (SCR) control unit (N118/5) Complaint The check engine light or AdBlue warning is activated, accompanied by one or more of the following fault codes related to the AdBlue tank: P206B31: Malfunction of the concentration sensor for AdBlue; the signal is absent. P203B31: Malfunction of the AdBlue fill level sensor; the…
• 11029272Feb 24, 2026Engine. Vehicles with SCR Generation 4: SCR/AdBlue® warning message cannot be reset with fault code P13DF00 or P300685 Complaint Vehicles with SCR Generation 4: SCR/AdBlue® warning message cannot be reset. Information: All fault codes in the AdBlue® (SCR) control unit have been processed and corrected; however, fault codes P13DF00 and P300685 remain active and stored in the AdBlue® (SCR) control unit.
• 11029274Feb 20, 2026Other or unknown. Xentry Battery Tester results do not match with workshop Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY battery test may not take into account a single discharge event because the SAM or EZS cannot record the…
• 11028117Jan 23, 2026Engine. Complaint Check engine warning light is active. The following fault codes may be present in the engine control unit: • P3007F1 Leak detected in the intake air system or • P3007F2 Mass air flow malfunction in the intake air system (cylinder bank 1) or • P300CA8 Leak detected in the intake air system or • P300CA9 Mass air flow malfunction in the intake air system (cylinder bank 1) or • P300CA9 and P3007F1: Faults are…
• 11028113Jan 16, 2026Engine. EGR Valve Diagnosis & Cleaning (and EGR Cooler Cleaning) – OM642, Sprinter 906/907 Complaint A: The engine is jolting/bucking between 1700 and 1900 rpm. Complaint B: One or more mechanical related fault codes for EGR Valve stored in CDI control unit, with possible Check Engine Light. Review list of mechanical fault codes in table below. NOTE: If one or more electrical related fault codes for EGR Valve are also…
• 11028119Jan 15, 2026Engine. Complaint Vehicles with SCR Generation 4: SCR/AdBlue® warning message cannot be reset. Information: All fault codes in the AdBlue® (SCR) control unit have been processed and corrected; however, fault codes P13DF00 and P300685 remain active and stored in the AdBlue® (SCR) control unit. Cause The procedure for resetting the SCR/AdBlue® warning message with XENTRY Diagnosis has not been carried out.
• 11028120Jan 14, 2026Engine. Complaint The check engine light is on, with a possibility in a reduction of power, with no soot present in the exhaust system. Fault codes: P300E5F The fill level of the diesel particulate filter is too high. (Early warning) P300E5E The fill level of the diesel particulate filter is too high. Regeneration of the diesel particulate filter is disabled.
• 11026891Dec 1, 2025Transmission and drivetrain. Clunking noise on load change or gear engagement Complaint Clunking noise can be heard on some load changes or when changing from N->R or N->D Cause Movement of transfer case splines Remedy Apply bearing retainer (green) Loctite to both output shaft splines of the transfer case. Loctite 648, 609 and 603 are acceptable for this repair. Note: Do not apply Loctite to input shaft (connection with transmission) splines…
• 11026053Nov 22, 2025Engine. Exhaust Gas Flap Noise Complaint Customers may report a high-pitched squealing or squeaking noise originating from the exhaust system, specifically near the exhaust gas flap. Cause The noise occurs during actuation of the exhaust gas flap. Internal movement within the flap mechanism, primarily the flap shaft and return spring, can generate friction-induced squeal.
• 11026055Nov 13, 2025Body and structure. Electric Step will not extend/inoperative Complaint T57 Electric step inop with warning on cluster. Cause Possible damage to end position sensors. Remedy Please remove lower panel on step and inspect for damage to end position sensors. If no damage is found to end position sensors, please continue diagnosis of concern as normal.
• 11026054Nov 12, 2025Engine. Diverse messages in the instrument cluster, vehicle will not start, gears cannot be engaged Complaint Vehicle cannot be started, various messages in instrument cluster, gears cannot be engaged, ignition cannot be switched on, central locking has malfunction. Cause Water entry or condensation on vehicle, resulting possibly in oxidation at plug and/or water/moisture entry in control unit N73/8 for Electronic Ignition…
• 11024929Oct 22, 2025Engine. Check engine light with fault code P3005CA in MRD1 (CDI) Complaint: The check engine light is on, with a possiblility in a reduction of power and the presence of soot in the exhaust system. Fault code P3005CA: The diesel particulate filter efficiency is insufficient. Cause: This fault code sets due to the following factors: 1. Damage to the Diesel Particulate Filter (DPF) unit. 2.
• 11024928Oct 6, 2025Other or unknown. The software for the communication module does not correspond to the latest series production configuration. For this reason, a remote software update to update the software for the communication module is planned for the affected vehicles. This update includes quality-enhancing optimizations for the communication module to improve the system stability and accessibility of connected services. MBUSA is conducting a…
• 11023983Sep 26, 2025Other or unknown. Engine Oil Level Cannot Be Checked via Instrument Cluster Service Menu Complaint Sometimes the engine oil level cannot be determined using the instrument cluster's service menu. The following mes- sages may be displayed: •Engine oil level currently inoperative. See Attachment: Message "Engine oil level currently inoperative" (shown in German on model 907 with code C6L (Multifunction steering wheel)). •Engine oil…
• 11023978Sep 26, 2025Engine. Internal Diesel Engine Damage or Oil Sludge Formation Complaint Customer reports that the vehicle will not start, is difficult to start, or is making unusual noises. Inspection Findings: Upon inspection, engine bearings—including crankshaft, connection rod, and camshafts—exhibit significant signs of wear. Engine oil shows evidence of sludging, characterized by the presence of thick, gel-like, or semi-solid deposits…
• 11023982Sep 16, 2025Transmission and drivetrain. Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission control unit Y3/8n4 Remedy For vehicles with 722.9 transmission: Ensure LI54.15-P-057373 is performed before replacing any component parts. After processing and complying with the above document(s): 1. Perform an ignition reset on Y3/8n4…
• 11023979Sep 10, 2025Engine. Oil Leak at Vibration Damper Area Complaint Oil leakage observed near the vibration damper, traced to a faulty radial shaft sealing ring at the front crankshaft flange. (see photo in attachment) Cause The sealing lip of the radial shaft sealing ring has worn a groove into the front crankshaft flange. This wear compromi- ses the sealing integrity between the crankshaft and the radial shaft sealing ring in its…
• 11023975Sep 4, 2025Electrical system. MBAG has determined the software of the control unit for the anti-theft warning system does not correspond to the current production configuration. There is a possibility that the alarm system (EDW) could be triggered while the vehicle is parked and locked. MBUSA is conducting a service campaign. An authorized Mercedes-Benz Sprinter dealer will update the anti-theft system software on the affected vehicles.
• 11021169Jul 25, 2025Engine. Oil Leak at Crankcase Near the High-pressure Fuel Pump OM654 Complaint: Visible oil leak at the crankcase near the mounting area of the high-pressure fuel pump on OM654 engines. Cause: The shaft seal (radial sealing ring) at the high-pressure fuel pump is not leak-tight, resulting in external oil leakage. Remedy: Install new high-pressure pump together with design-optimized sealing ring. 1. Replace the…
• 11019973Jun 24, 2025Electrical system. Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Adblue System: •P20F409: The Adblue consumption is too low. There is a component fault. •P202E84: The Adblue metering valve 1 (Motor side) has a malfunction. There is a signal below the permissible limit value. Cause The potential causes for these fault codes are: A. A leak in the Adblue System B…

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