2023 Mercedes-Benz Sprinter 2500 Fuel system Problems
- Complaints
- 5about this part
- Share
- 26%of 19 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 5 complaints about the fuel system of the 2023 Mercedes-Benz Sprinter 2500, 26% of the 19 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I am writing to express my concern and seek assistance regarding a significant issue with my nearly new commercial vehicle, a Mercedes-Benz Sprinter 2500, purchased in 2023. The vehicle currently has 118,000 miles. Recently, I encountered problems with the Diesel Exhaust Fluid (DEF) system. Upon taking the vehicle to the dealership where I originally purchased it, they conducted a diagnostic and informed me that the entire DEF system needs to be replaced, estimating the repair cost to be around $11,000 to $12,000. …”
NHTSA complaint #11603630, filed 2024-07“Occasionally, the idle speed of the engine will drop to 400 rpm. When this happens, the vehicle does not respond to throttle input. If it happens in a parking lot, you can shift into park and coax the rpm higher, then shift to drive and move on. When it happens in the middle of an intersection while waiting to make a left turn, the story is very different. You can end up in a very dangerous situation. This has happened to me multiple times. I have not had an accident, but I have upset other drivers when I failed to clear an intersection in a timely manner. …”
NHTSA complaint #11673832, filed 2025-07“I had tuned up my sprinter van around 64000 miles. I put new ngk spark plugs and ignition coils on it. Ran for a day then. The codes said the number one ignition coil was bad. Change that out and it ran for about 8000 miles. Then stated to go in lymph mode again. I decided to replace them with original Mercedes spark plugs and Ignition coils. But when I put them in the van had no power and was jerking. It was doing this before I changed them out. It had no power and would barely go up a hill. I researched and seen certain Merecedes Sprinter vans from 2021 to 2023. …”
NHTSA complaint #11690866, filed 2025-10“The High-Pressure Fuel Pump (HPFP) and corresponding fuel delivery pressure regulator/sensors have suffered an internal mechanical failure. The system intermittently fails to maintain commanded rail pressure, leading to critical engine cylinder misfires (P0302, P0304) and severe long-term fuel adaptation breaches (P00C600, P008992, P017184, P218862). This defect is physically causing raw gasoline to leak into the combustion chambers, oil crankcase, and exhaust tract. The vehicle and all compromised components are fully intact and available for immediate inspection upon request. …”
NHTSA complaint #11770454, filed 2026-10Related service bulletins
- 11036846Aug 5, 2026Oil 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…
- 11034407Jun 18, 2026Complaint 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…
- 11034411Jun 16, 2026Fuel 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…
- 11034409Jun 3, 2026Complaint 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…
- 11033165May 8, 2026Check 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…
- 11031942Apr 29, 2026Complaint 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…
- 11030629Mar 23, 2026The 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…
- 11030627Mar 23, 2026Check 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…
- 11016429Mar 18, 2025Check engine light or Adblue warning with fault codes P206B31, P203B31, or P300494 when outside temperatures are below 32 degrees Fahrenheit. SCR Gen4 (KP7) Complaint: The check…
- 11016427Mar 10, 2025Procedure for When Diesel Fuel Tank is Filled with Incorrect Fuel Type Complaint: Procedure for When Diesel Fuel Tank is Filled with Incorrect Fuel Type (e.g., gasoline, water…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 1 | 8% |
| 2023 | 5 | 26% |
| 2022 | 4 | 10% |
| 2021 | 3 | 7% |
| 2020 | 4 | 5% |
| 2019 | 1 | 1% |
| 2018 | 1 | 7% |
| 2017 | 1 | 8% |
| 2015 | 2 | 9% |
| 2014 | 3 | 8% |
| 2011 | 1 | 7% |
| 2010 | 3 | 21% |
Other parts of the 2023 Mercedes-Benz Sprinter 2500
6 complaintsTransmission and drivetrain
5 complaintsOther or unknown
4 complaintsBrakes
2 complaintsElectrical system
2 complaintsSteering
2 complaintsForward collision avoidance
1 complaintsSuspension
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2023 Mercedes-Benz Sprinter 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology