Mercedes-Benz Sprinter Service Bulletins
532 manufacturer communications on file.
- January 14, 2026•Document ID: 11028120Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI49.20-N-080011
- Date Added:
- February 3, 2026
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint 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.
Associated Products (5)Associated Documents - December 1, 2025•Document ID: 11026891Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- LI28.00-N-063339
- Date Added:
- January 2, 2026
- Manufacturer:
- FREIGHTLINER
SummaryClunking 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.
Associated Products (47)2025 Mercedes-Benz Sprinter2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz Sprinter2018 Freightliner Sprinter2018 Mercedes-Benz Sprinter2017 Freightliner Sprinter2017 Mercedes-Benz Sprinter2016 Freightliner Sprinter2016 Mercedes-Benz Sprinter2015 Freightliner Sprinter+ 27 moreAssociated Documents - November 22, 2025•Document ID: 11026053Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI49.00-N-080010
- Date Added:
- December 3, 2025
- Manufacturer:
- FREIGHTLINER
SummaryExhaust 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).
Associated Products (7)Associated Documents - November 13, 2025•Document ID: 11026055Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- LI88.30-N-078036_2
- Date Added:
- December 3, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryElectric 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. If damage to end position sensors are found, please check the serial number on step (see attached image of serial number location) If the serial number is below 126050: 1. Please check that the drive motor is secured to the step properly. 2. Replace the end position sensor/sensors and install them in an adjusted position that allows proper clearance between drive and sensor/sensors. (see attached image of sensor position example.) 3. Function test the step at least 5 times to check for proper clearance. If the serial number is 126050 or higher: 1. Please open a TIPS case including images of the damaged sensor/sensors and serial number of step.
Associated Products (12)2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz SprinterAssociated Documents - November 12, 2025•Document ID: 11026054Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI54.21-N-069524_7
- Date Added:
- December 3, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryDiverse 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.
Associated Products (13)2025 Mercedes-Benz Sprinter2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz SprinterAssociated Documents - October 22, 2025•Document ID: 11024929Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI49.20-N-078466
- Date Added:
- November 4, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryCheck 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).
Associated Products (5)Associated Documents - October 6, 2025•Document ID: 11024927Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 24V5497749
- Date Added:
- November 4, 2025
- Manufacturer:
- FREIGHTLINER
SummaryThe 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. DVUSA 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.
Associated Products (4)Associated Documents - October 6, 2025•Document ID: 11024928Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 24V5497749
- Date Added:
- November 4, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryThe 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.
Associated Products (12)2025 Mercedes-Benz Sprinter2024 Mercedes-Benz Sprinter2023 Mercedes-Benz Metris2023 Mercedes-Benz Sprinter2022 Mercedes-Benz Metris2022 Mercedes-Benz Sprinter2021 Mercedes-Benz Metris2021 Mercedes-Benz Sprinter2020 Mercedes-Benz Metris2020 Mercedes-Benz Sprinter2019 Mercedes-Benz Metris2019 Mercedes-Benz SprinterAssociated Documents - September 26, 2025•Document ID: 11023983Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- LI54.30-N-079757
- Date Added:
- October 7, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryEngine 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 level measurement is running. Repeat the query after a maximum of 30 minutes of driving time. Information: It is still possible to determine the engine oil level via the workshop menu or XENTRY Diagnostics. Cause No current value for the saved oil volume has been stored in the drivetrain control unit (CPC, N127). Remedy 1. Connect diagnostic device (see AD00.00-D-2000-06TS for model 907). •Always use the latest XENTRY Diagnostics software release with all available add-ons. •Follow all operation steps in XENTRY Diagnosis precisely. 2. Perform initial quick test (see AD00.00-D-2000-06TS for model 907). •Print out the initial quick test as a PDF file and attach it to the order in a tamperproof manner. 3. Create and save the control unit log for drivetrain control unit (CPC, N127). •Print out the control unit log as a PDF file and attach it to the order in a tamperproof manner. •Check the saved oil volume in the "Maintenance data" tab of the control unit log. See Attachment: Saved oil volume in "Maintenance data" tab of the control unit log (shown in German). •If the saved oil volume in the "Maintenance data" tab is more than 0.0 liters and it is not possible to determine the en- gine oil level via the service menu, conduct further research on the exact reason for the customer complaint and initia- te corresponding repair measures. •If the saved oil volume is 0.0 liters, proceed with operation step 4. 4. Check actual values for engine oil level in the engine control unit and observe any relevant information and descrip- tions in XENTRY Diagnosis. •Quick test view → Engine control unit → Actual values → Oil circuit → Oil level gauge 5. Clear fault memory (see AD00.00-D-2000-06TS for model 907). 6. Disconnect diagnostic device (see AD00.00-D-2000-06TS for model 907). 7. Carry out a test drive of more than 30 minutes, run the vehicle in idle for approximately 3 minutes on a level sur- face, switch the ignition off and on again, and then record the engine oil level again using the instrument cluster's ser- vice menu. •Only carry this out if the saved oil volume in the "Maintenance data" tab is 0.0 liters. •When checking the engine oil level via the service menu, refer to the operator's manual. Inform the customer accor- dingly about these circumstances. See Attachment: Message "Engine oil level OK" (shown in German on model 907 with code C6L (Multifunction steering wheel)). 8. If the customer complaint occurs again, create a TIPS case directed to the Powertrain inbox, including all required information from this LI.
Associated Products (47)2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz Sprinter2018 Freightliner Sprinter2018 Mercedes-Benz Sprinter2017 Freightliner Sprinter2017 Mercedes-Benz Sprinter2016 Freightliner Sprinter2016 Mercedes-Benz Sprinter2015 Freightliner Sprinter2015 Mercedes-Benz Sprinter+ 27 moreAssociated Documents - September 26, 2025•Document ID: 11023978Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI01.10-N-079275
- Date Added:
- October 7, 2025
- Manufacturer:
- FREIGHTLINER
SummaryInternal 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 within the engine. This condition is indicative of oil degradation and/or contamination. Cause Internal engine wear and starting issues are a result of oil sludging. This sludging occurs due to oil degradation and/or contamination. Common contributing factors include: •Failure to perform maintenance on time as indicated by the ASSYST PLUS system •Use of non-OEM (aftermarket) parts or fluids •Addition of incorrect fluids (e.g., AdBlue, washer fluid, coolant) to the engine oil, which can severely compromise lub- rication and engine operation Important: Under no circumstances should any non-engine fluids—such as AdBlue, washer fluid, or coolant—be ad- ded to the engine oil or crankcase. The introduction of these fluids, even in small amounts, can cause severe engine damage. This damage is not covered under warranty. Always verify that only approved engine oil and additives are used during service.
Associated Products (12)2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz SprinterAssociated Documents - September 16, 2025•Document ID: 11023982Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- LI27.19-N-079793
- Date Added:
- October 7, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint 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 (VGS) 2. Inspect transmission connector for loose connections, damaged wiring or pins and any other concerns. If communication with the VGS cannot be established, the complete valve body ('electrohydraulic controller unit (EHS)') must be replaced. Installation of a VGS repair kit is not permitted in this case as it is not possible to transfer the necessary valve characteristics without communication with the original control unit.
Associated Products (56)2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Metris2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Metris2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Metris2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Metris2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz Metris2019 Mercedes-Benz Sprinter2018 Freightliner Sprinter2018 Mercedes-Benz Metris2018 Mercedes-Benz Sprinter+ 36 moreAssociated Documents - September 10, 2025•Document ID: 11023979Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI01.40-N-077649
- Date Added:
- October 7, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryOil 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 original assembly position. Remedy Install a crankcase cover equipped with a design-optimized radial shaft sealing ring. This updated sealing ring features a revised lip structure that relocates the sealing surface outside the worn area of the crankshaft.
Associated Products (4)Associated Documents - September 4, 2025•Document ID: 11023975Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- 2025080008
- Date Added:
- October 7, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryMBAG 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.
Associated Products (6)Associated Documents - August 12, 2025•Document ID: 11022498EmissionsUNKNOWN OR OTHER
- Mfr Comm. #:
- MB_V-SC-2025070001
- Date Added:
- September 3, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryMercedes-Benz AG, the manufacturer of Mercedes-Benz Sprinter vans, has determined that on certain Model Years 2017-2021 Sprinter vehicles, the In Use Monitor Performance Ratio (“IUMPR”) function of the OBD system might not perform as intended under certain circumstances.
Associated Products (5)Associated Documents - August 12, 2025•Document ID: 11022497EmissionsUNKNOWN OR OTHER
- Mfr Comm. #:
- MB_V-SC-2025070011
- Date Added:
- September 3, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryMercedes-Benz AG, the manufacturer of Mercedes-Benz Sprinter vans, has determined that on certain Model Year 2019-2021 Sprinter vehicles, the SCR control unit software does not correspond to the current series production configuration.
Associated Products (3)Associated Documents - July 25, 2025•Document ID: 11021173Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- LI49.20-N-079593
- Date Added:
- August 1, 2025
- Manufacturer:
- FREIGHTLINER
SummaryCheck engine light with fault code P20EEFE in the CDI control unit CDI (N3/47) Complaint Check engine light is illuminated with fault code P20EEFE "The efficiency of component 'SCR catalytic converter' is not sufficient" stored in the CDI control unit (N3/47). Cause Excessive ammonia slip is being detected in the SCR system, often triggered by IUMPR (In-Use Monitor Performance Ratio) thresholds. This typically indicates that the SCR catalyst is not converting DEF (AdBlue) efficiently under moni- tored conditions. Common Driving Scenario: •Non-dynamic driving (e.g., highway cruising with cruise control set) •Minimal load changes, steady-state exhaust flow Contributing Factors: •Software influence – IUMPR (In-Use Monitor Performance Ratio) thresholds •DEF Overdosing – Over-injection due to faulty NOx sensors, dosing valve issues, or poor DEF quality •Low Exhaust or Catalyst Temperatures – Common under low-load conditions; reduces SCR conversion efficiency •Catalyst Degradation or Contamination – Aging catalyst or contamination from oil, coolant, or poor-quality DEF Remedy IMPORTANT: Do not replace any components unless instructed through TIPS. For Model Year 2019–2021 Vehicles: •Update the following control units to the latest available software: N3/47 - Motor electronics 'CDI43' for combustion engine 'OM651' (CDI) N118/5 - Selective catalytic reduction (SCR GEN3) •If no newer software is available, proceed with the inspection and documentation steps listed under the No Newer Software section. •Once all inspections are complete, open a TIPS case directed to the Powertrain Inbox, referencing this LI with the collected information and data. No Newer Software Vehicles: Perform the following steps in order. Document all findings with photos and actual values where applicable: 1. Tailpipe Wipe Test •Perform and photograph results. 2. NOx Sensor Harness Inspection •Check connectors, pins, crimps, and harnesses 3. Sensor Plausibility Checks •Record actual values for all pressure and temperature sensors: •Once with the engine cold (≥8 hours off) •Again, at full operating temp, engine idling 4. Smoke Test – Intake, Charge Air, Exhaust •Apply ≤26 psi from the tailpipe. •Seal at clean air line. •Manipulate components during the test. •Document any leaks. 5. DPF Data •Record actual values and regeneration history. 6. SCR Temp Sensor Wiring •Inspect wiring and pins. •Confirm sensor reaches operating temp while driving. •Document time to temp. 7. AdBlue Injector Inspection •Check for clogging or leaks. •Photograph nozzle(s). 8. AdBlue Pressure Test •Remove injector(s), perform 2–3 pressure tests. •Check for leaks and document with photos. 9. DEF Quality Check •Collect a sample. •Note color, clarity, separation, odor, and quantity. •Photograph the fluid and spray pattern. 10. DPF & SCR Visual Inspection •Separate exhaust downstream of DPF. •Inspect for soot, blockage, or damage. •Photograph findings. 11. SCR Catalyst Interior •Inspect for dried AdBlue residue. •Photograph the interior. 12. NOx Sensor Graphing •Perform multiple test drives at varying speeds. •Capture 3–4 graphs/screenshots of NOx sensor signals using XENTRY. •Include one at idle, engine warm. •Disconnect AdBlue valve, drive 30 min, capture 2–3 more graphs. •Once all inspections are complete, open a TIPS case directed to the Powertrain Inbox, referencing this LI with the collected information and data.
Associated Products (6)Associated Documents - July 25, 2025•Document ID: 11021169Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI07.02-N-079573
- Date Added:
- August 1, 2025
- Manufacturer:
- FREIGHTLINER
SummaryOil 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 high-pressure fuel pump. 2. Discard the 2.5 mm O-ring included with the new pump. 3. Install the updated 2.6 mm O-ring (P/N: A0009973819). 4. Verify the repair using crack detection spray (P/N: A0009890359) around the pump mounting area. 5. If the leak reappears, submit a TIPS case to the Powertrain inbox with reference photos.
Associated Products (4)Associated Documents - July 23, 2025•Document ID: 11021170Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- LI49.20-N-076565
- Date Added:
- August 1, 2025
- Manufacturer:
- FREIGHTLINER
SummaryCheck engine light with fault code P300E3B in the CDI control unit CDI (N3/28) Complaint Check engine light is illuminated with fault code P300E3B “The efficiency of component 'SCR catalytic converter' is not sufficient" stored in the CDI control unit (N3/28). Cause Excessive ammonia slip is being detected in the SCR system, often triggered by IUMPR (In-Use Monitor Performance Ratio) thresholds. This typically indicates that the SCR catalyst is not converting DEF (AdBlue) efficiently under moni- tored conditions. Common Driving Scenario: •Non-dynamic driving (e.g., highway cruising with cruise control set) •Minimal load changes, steady-state exhaust flow Contributing Factors: •Software influence – IUMPR (In-Use Monitor Performance Ratio) thresholds •DEF Overdosing – Over-injection due to faulty NOx sensors, dosing valve issues, or poor DEF quality •Low Exhaust or Catalyst Temperatures – Common under low-load conditions; reduces SCR conversion efficiency •Catalyst Degradation or Contamination – Aging catalyst or contamination from oil, coolant, or poor-quality DEF Remedy IMPORTANT: Do not replace any components unless instructed through TIPS. For Model Year 2019–2021 Vehicles: •Update the following control units to the latest available software: N3/28 – Motor Electronics 'CDI61NFZ' for combustion engine 'OM642' (CDI):
Associated Products (6)Associated Documents - June 24, 2025•Document ID: 11019973Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- LI49.20-N-079157_6
- Date Added:
- July 1, 2025
- Manufacturer:
- FREIGHTLINER
SummaryComplaint 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. An internal fault with the Adblue Injection Valve #1 (Motor side) C. An air pocket forming in the Adblue Injection Valve #1 (Motor side) Adblue Injector Line Remedy Vehicles Produced Before August 1, 2024 (Code XY4 = MY24) A. Leak in the AdBlue System 1. Complete the Guided Tests for DTC P20F409 or P202E84: •Inspect the AdBlue tank, pump, line, and both injectors for leaks. •Ensure the AdBlue line is properly routed, securely fastened, and not in contact with the exhaust system. •Remove both AdBlue injection valves, perform 2–3 pressure build-ups, and check for AdBlue leaks. •If a leak is detected, repair it and retest. B. Internal Fault with AdBlue Injection Valve #1 (Motor Side) 1. Process All Other Related DTCs First: •Address any other fault codes relating to AdBlue injection valves before proceeding. •If AdBlue Injection Valve #1 (engine side) fails the guided tests, replace it and retest. C. Air Pocket Forming in the AdBlue Line (Motor Side) 1. If Guided Tests Pass and No Leaks are Found: --Do not replace any components.-- •The MY23-24 (Code XY4 = MY24, OM654) AdBlue line (A907 470 01 01) has a known design issue that can cause air pockets and DTC P20F409. This may also result in DTC P202E84, depending on the air pocket size. •The guided tests for P20F409 now include resetting the learned values for the AdBlue delivery pump (A103m1). After this, the vehicle can be released to the customer. NOTE: Replacing the AdBlue tank or line will NOT resolve this air pocket issue. TIPS cases are no longer required for MY23–24 vehicles. Steps to Perform (MY23–24, Code XY4): 1. Complete the guided tests for DTC P20F409 and/or P202E84. 2. Perform an initial start-up of: •The SCR control unit •AdBlue tank components •Both AdBlue injectors 3. Conduct a 20-mile test drive. If no faults occur, the vehicle can be released. 4. Inform the customer that frequent starting/stopping increases the likelihood of this fault due to repeated cycling of AdBlue in/out of the line each ignition cycle. Vehicles Produced After August 1, 2024 (Code XY5 = MY25) A. Leak in the AdBlue System 1. Complete the Guided Tests for DTC P20F409 or P202E84: •Inspect the AdBlue tank, pump, line, and both injectors for leaks. •Ensure the AdBlue line is properly routed, securely fastened, and not in contact with the exhaust system. •Remove both AdBlue injection valves, perform 2–3 pressure build-ups, and check for AdBlue leaks. •If a leak is detected, repair it and retest. B. Internal Fault with AdBlue Injection Valve #1 (Motor Side) 1. Process All Other Related DTCs First: •Address any other fault codes relating to AdBlue injection valves before proceeding. •If AdBlue Injection Valve #1 (engine side) fails the guided tests, replace it and retest. C. Incorrect AdBlue Injection Line Installed 1. Verify the Updated Line is Installed: •Confirm that part number A907 470 33 02 is present. •If the AdBlue line is incorrect (e.g., A907 470 01 01), replace it with the updated line. TIPS Case Instructions for All MY25 and Newer Vehicles If you encounter any of the issues above on any MY25 or newer vehicle, including finding an incorrect AdBlue line in- stalled: •Open a TIPS case addressed to the Powertrain inbox. •Reference this LI document. •Include the following information: •Description of the issue encountered (e.g., fault code, check engine light, or incorrect AdBlue injection line) •Current Quick Test, SCR N118/5 Control Unit Log, and Guided Test results. •Photo of AdBlue line part number label. •Photos documenting any issues, leaks, or melting observed
Associated Products (12)2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz SprinterAssociated Documents - June 20, 2025•Document ID: 11019967Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI14.30-N-075882_6
- Date Added:
- July 1, 2025
- Manufacturer:
- MERCEDES-BENZ
SummaryCheck engine light active - Fault P3007F1, P3007F2, P300CA8, or P300CA9 present in CDI control unit Complaint Check engine warning light active. The following fault codes may be present in the engine control unit: • P3007F1 Leak detected in intake air system or • P3007F2 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA8 Leak detected in intake air system or • P300CA9 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA9 and P3007F1: Faults are present simultaneously in the quick test 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 low- pressure EGR valves. (See “Gehaeusezwischenflansch_intermediate_flange.jpg” and “verstopfter_Gehaeuse- zwischenflansch_clogged_Intermediate_Flange.jpg.”) • Note: Only relevant if 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_mani- fold.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 for FC P3007F2 or P300CA9: Faults are set if: • There is a leak downstream of the exhaust gas turbocharger. • The charge air distribution line (intake manifold) is heavily carbonized (see "Saugrohr_intake_manifold.jpg"). • 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). • There is a defective hot film mass air flow sensor, or it is affected by incorrect airflow due to a clogged or defor- med air filter (see "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 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. Remedy In the case of fault code P3007F1 or P300CA8: 1) Check for Required ECU Software Update (Applies to P300CA8 only)
Associated Products (12)2024 Freightliner Sprinter2024 Mercedes-Benz Sprinter2023 Freightliner Sprinter2023 Mercedes-Benz Sprinter2022 Freightliner Sprinter2022 Mercedes-Benz Sprinter2021 Freightliner Sprinter2021 Mercedes-Benz Sprinter2020 Freightliner Sprinter2020 Mercedes-Benz Sprinter2019 Freightliner Sprinter2019 Mercedes-Benz SprinterAssociated Documents