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Service bulletins for the 2025 Mercedes-Benz Sprinter

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

39 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
LI49-20-N-0759952026-04-02. Service bulletin. UNKNOWN OR OTHER. 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 been carried out. Note: If AdBlue quality or concentration related fault codes are present, such as P300494, P203B31, or P206B31, complete the applicable diagnostic procedure first. This includes the thaw, mixing drive, and retest requirements in LI49.20-N-080376 and the detailed diagnosis and re-pair steps in LI49.20-N-078838 as applicable. Do not attempt to reset the SCR or AdBlue warning message until the underlying fault condition has been corrected. Remedy Note: Do not replace any parts for an incorrectly executed reset procedure. 1. Connect the battery charger •Maintain adequate voltage throughout the procedure per applicable guidance. 2. Connect the diagnostic device •Use the latest version of XENTRY Diagnosis and Add-Ons. 3. Reset the SCR or AdBlue warning message using XENTRY Diagnosis •Quick test view → N118/5 – Selective Catalytic Reduction (SCR GEN4) → Special processes → Reset SCR/AdBlue® warning message. Note: Ensure all 5 listed processes are completed successfully, indicated by Actual value: "successfully completed". 4. Complete the disconnect and sleep mode initiation procedure •Disconnect XENTRY. •Refer to manual AD00.00-D-2000-06TS for the correct procedure to disconnect the diagnostic device from Model 907. •Disconnect the Battery Charger •Refer to manual AR54.10-D-1127TS for instructions on safely disconnecting the battery charger from Model 907. •Turn off the ignition. •Remove the key. •Lock the vehicle and wait approximately 15 minutes to allow the CAN bus system to enter sleep mode. 5. Post sleep mode vehicle start •After the 15-minute waiting period, start the vehicle. Note: The "starts remaining" message will remain on the Instrument Cluster (IC), but the vehicle will not be in the 5mph de-rate mode. 6. Drive for system self-test •Drive the vehicle for 5 to 10 miles to enable the SCR system to perform a self-test. Note: During the warning reset process, ensure the outside temperature sensor is reading above 10 degrees Fahrenheit. If not, keep the vehicle inside and repeat the reset. The vehicle may need to be driven to allow NOx sensors and the SCR system to complete their self-test before fault codes can be stored and then cleared. 7. Confirm and erase fault codes •Verify warning messages. •Ensure relevant fault codes are stored. •Erase fault memory if necessary. 8. Disconnect the Diagnostic Device •Refer to manual AD00.00-D-2000-06TS for the correct procedure to disconnect the diagnostic device from Model 907. 9. Disconnect the Battery Charger •Refer to manual AR54.10-D-1127TS for instructions on safely disconnecting the battery charger from Model 907.
Differential Pressure2026-03-03. Warranty extension. UNKNOWN OR OTHER. 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. Mercedes-Benz AG has determined that on Sprinter (907 platform) vehicles, under certain circumstances iodine corrosion might take place on the bonded connection of the low-pressure Exhaust Gas Recirculation (EGR) differential pressure sensor, which could lead to an electrical fault. In the potentially affected vehicles iodine corrosion on the bonded connection of the low pressure EGR differential pressure sensor might be caused by the release of iodine from rubber parts if the vehicle is exposed to excessive temperatures from sun exposure or in the event of significant heat accumulation due to long idle phases. The released iodine might promote electro corrosion on the sensor’s bonding. As soon as the iodine corrosion has progressed to the point where there is no longer an electrical connection, this would be correctly recognized by the low pressure EGR differential pressure sensor diagnostics as a hardware failure, the corresponding error code would be stored and the Malfunction Indicator Light would illuminate (2-trip MIL). Furthermore, corresponding error replacement reactions (e.g. deactivation of EGR and DPF regeneration, blocking of OBD-relevant diagnostics, and activation of limp home mode) would be initiated. As a result of the error replacement reactions, exhaust emissions might be increased. Due to the illumination of the MIL as well as the activation of the replacement reactions (including limp home mode), it is anticipated that customers would visit a workshop promptly.
LI5410N0802072026-03-03. Service bulletin. UNKNOWN OR OTHER. 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 data if the battery is discharged. Note: A discharged battery does not necessarily need to be replaced. A discharged battery may be recovered with no permanent damage.
LI4920N0788382026-03-03. Service bulletin. ENGINE. 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 signal is absent. P300494: The quality of the AdBlue is insufficient. Cause A. The software for the AdBlue (SCR) control unit (N118/5) is outdated. B. The concentration of AdBlue is either above or below the Mercedes-Benz specifications, which can lead to premature freezing. C. Frozen or partially frozen AdBlue can cause the AdBlue level sensor to misread levels. D. The AdBlue level sensor is damaged.
LI4920N0759952026-03-03. Service bulletin. ENGINE. 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. Cause The procedure for resetting the SCR/AdBlue® warning message with XENTRY Diagnosis has not been carried out. Information: Before resetting the SCR/AdBlue® warning message for SCR Generation 4, the AdBlue® system must be in proper working condition and tested.
LI49.20-N-0800112026-02-03. Service bulletin. ENGINE. 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. Additional information: No additional fault codes related to the Diesel Particulate Filter (DPF) system or the Exhaust Gas Recirculation (EGR) system may be present for this LI to apply. Cause These fault codes may be triggered due to unfavorable driving conditions, such as: •Frequent short-distance trips •Extended idle periods •Infrequent highway driving •Incomplete regeneration cycles These conditions can lead to excessive soot accumulation in the Diesel Particulate Filter (DPF), resulting in elevated fill levels and regeneration lockout.
LI49.20-N-0759952026-02-03. Service bulletin. ENGINE. 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. Information: Before resetting the SCR/AdBlue® warning message for SCR Generation 4, the AdBlue® system must be in proper working condition and tested.
LI14.30-N-0758822026-02-03. Service bulletin. ENGINE. 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 present simultaneously in the quick test In addition, the customer may report: • An “air leak” type noise from the engine compartment/intake air area, and/or • A “chugging” noise, especially during acceleration or under load. These noise complaints can be present with or without the above fault codes. Cause Causes for FC P3007F1 or P300CA8: Faults are set if: • If there is a leakage upstream of the exhaust gas turbocharger (see "Dichtring_Sealant.jpg"). • If the housing intermediate flange at the high-pressure EGR valve (where the exhaust back pressure sensor connects) is carbonized or clogged, or if there is carbonization/incomplete sealing of the high-pressure or lowpressure EGR valves. (See “Gehaeusezwischenflansch_intermediate_flange.jpg” and verstopfter_Gehaeusezwischenflansch_clogged_Intermediate_Flange.jpg.”) • Note: Only relevant if the correction value in load range 1 is less than -8%. • If the intake manifold (charge air distribution line) or charge air cooler is carbonized (see "Saugrohr_intake_manifold.jpg"). • If engine timing is misadjusted. • There is a defective hot film mass air flow sensor or a hot film mass air flow sensor that is affected by incorrect airflow (this can be due to a clogged or deformed air filter). Refer to the attached file "Luftfilter_air_filter." Cause of fault code combination P300CA9 AND P3007F1: Faults are set if: • There is carbonization or incomplete closure of the high-pressure exhaust gas recirculation valve, especially in the housing intermediate flange at the EGR valve (linked to the exhaust back pressure sensor). Charleston Plant Identification – VIN 11th Digit “T”: For vehicles produced at the Charleston Plant (identified by “T” in the 11th digit of the VIN) with a production date on or after 12/20/2023: • If fault code P3007F1 or P300CA8 is set, an air leak is found, and the cause is identified as a loose or mis-installed Clean Air Line from the factory, open an Initial Field Quality (Info Only) case. • Include the current Quick Test and photos showing the Clean Air Line issue. For all other vehicles, continue diagnosis as per the standard instructions.
LI14.20-N-0738672026-02-03. Service bulletin. ENGINE. 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 present in CDI, utilize Complaint C. Review list of electrical fault codes PDF document in attachments. Complaint C: One or more electrical related fault codes for EGR Valve stored in CDI control unit, with possible Check Engine Light. Review list of electrical fault codes PDF document attached. Cause of Complaint A: Increased friction between the EGR Valve blade and seat due to soot deposits causing a delay of the EGR Valve being able to reach the target value of the EGR Valve position controller. NOTE: This causes the EGR Valve blade and potentially the boost pressure controller to oscillate. Cause of Complaint B: Soot deposits between the EGR Valve blade and seat leading to the EGR Valve no longer being able to meet the desired target of the EGR Valve position controller. Cause of Complaint C: Internal EGR Valve or other electrical faults related to the EGR Valve function.
LI28.00-N-0633392026-01-02. Service bulletin. POWER TRAIN. 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 of the transfer case else possible damage could occur.
LI54.21-N-069524_72025-12-03. Service bulletin. ENGINE. 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 Lock (EIS) and/or N127 Powertrain Control unit (CPC). Remedy Check control unit N73/8 for Electronic Ignition Lock (EIS) and N127 Powertrain Control unit (CPC) for water entry/moisture traces. If water entry / moisture traces are visible on control unit N73/8 for Electronic Ignition Lock (EIS) and/or N127 Powertrain Control unit (CPC), please localize the leaky area and rectify the leak.
LI49.00-N-0800102025-12-03. Service bulletin. ENGINE. 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. Remedy If a squealing noise is present at the exhaust gas flap, do not replace the entire exhaust gas flap assembly or exhaust system. Perform the following corrective action: 1. Confirm the noise originates from the exhaust gas flap actuator area. The squeal typically occurs when the actuator moves the flap during engine operation. 2. Solution: •Remove the Exhaust Gas Flap Controller (AR49.10-D-5507TSM - Remove/install exhaust gas flap controller). •Remove the original spring (Picture 1). •Install the new damping element in place of the spring (Picture 2 and Picture 3). -This damping element absorbs vibration and prevents squealing, eliminating the need for costly component replacements. •Reinstall the Exhaust Gas Flap Controller. •Perform initialization of Exhaust Gas Flap Controller (AD00.00-D-2000-06TS - Connect/disconnect diagnostic unit).
LI49.20-N-0784662025-11-04. Service bulletin. ENGINE. 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. The N74 (Soot Particulate Sensor Control Unit) identifies soot or debris located downstream of the SCR Catalyst (underbody).
24V54977492025-11-04. Over-the-air update. UNKNOWN OR OTHER. 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 service campaign. The update is downloaded and installed in the background. This process takes approximately 10 minutes. During installation, the system can be used without restrictions. The new software will become active after the vehicle's ignition cycle.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.