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Fuel systemPart report

2017 Mercedes-Benz Sprinter 3500 Fuel system Problems

Complaints
3about this part
Share
11%of 28 total for the year
Median mileage
184,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the fuel system of the 2017 Mercedes-Benz Sprinter 3500, 11% of the 28 complaints for this model year. Where a mileage was given, the median is 184,500 miles.

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.

“Side entry door opened twice while driving. 1st we thought we didn't close it right, but I checked and door had locks engaged. The 2nd time that door opened up, I pulled over and checked and engaged all locks on door and then pushed it a bit and to my surprise the door opened up! It turns out the screws were lose so the locks were not engaging. So I tightened them up with the drill and problem solved. This is an rv and it is driven many miles and on bumpy roads so the screws will loosen up causing the deadbolt locks not to engage properly. …”

NHTSA complaint #11407752, filed 2021-04

“The contact owns a 2017 Mercedes- Benz Sprinter 350. The contact stated that while driving at various highway speeds the warning message DEF Is Low had suddenly displayed and the vehicle went into Limp Mode causing the speed to suddenly reduce to 5 MPH. The vehicle was taken to the local dealer who diagnosed that the DEF tank was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure but no assistance was offered. The failure mileage was 44,000.”

NHTSA complaint #11631555, filed 2024-12, 44,000 miles

“The contact owns a 2017 Mercedes-Benz M3CA76 Sprinter 3500. The contact stated while driving at approximately 65 MPH, the diesel purifier, Diesel Exhaust Fluid, DEF system, warning illuminated. The contact stated that the failure of the DEF system had occurred before the recent failure. The contact stated that the first failure had occurred several years ago. The contact had taken the vehicle to an independent mechanic where it was diagnosed and determined that the DEF system again needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. …”

NHTSA complaint #11632139, filed 2024-12, 325,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
202316%
201914%
2018111%
2017311%
201623%
201513%
201412%
2012314%

Other parts of the 2017 Mercedes-Benz Sprinter 3500

Electronic stability control
7 complaintsWheels
7 complaintsBrakes
5 complaintsVehicle speed control
4 complaintsElectrical system
3 complaintsBody and structure
3 complaintsAir bags
2 complaintsOther or unknown
2 complaintsEngine
1 complaintsForward collision avoidance
1 complaintsSteering
1 complaintsTires
1 complaints

← All problems reported for the 2017 Mercedes-Benz Sprinter 3500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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