2021 Mercedes-Benz Sprinter 1500 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2021 Mercedes-Benz Sprinter 1500, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Driver assistance337.5%
- Brakes225.0%
- Powertrain (other)225.0%
- Engine112.5%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
The Distronic Cruise Control stops working and then will start working again several times on long trips. After research it appears if the radar doesn't detect anything in front of your vehicle for an hour it thinks it is inoperable and and shuts the Distronic Cruise Control off and it cannot be reengaged. If it detect a vehicles in front of you for four minutes or more it will reset the radar and your Distronic Cruise Control can be turned on again. This is dangerous as it requires you to follow closely behind another vehicle for at least four minutes to reset. Out west where I live there are a lot of road stretches' where you will have little to no traffic for over an hour. Mercedes needs to change this software bug and provide another method for it's radar check warning.
On long trips (when you need cruise control the most) the adaptive cruise control will (seemingly at random) stop working with a warning about the active distance assist and active brake assist. It has happened in all situations from heavy traffic to long distances of no other cars on the road. It stays non-functional for anywhere from a few minutes to several days. It has happened many times. The dealers are clueless. Saying nonsense like "I'm not aware of this problem." even though the Internet is filled with reports of the exact issue.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
The contact's husband owns a 2021 Mercedes Benz Sprinter 1500. The contact stated that while driving at an undisclosed speed, the ABS warning light was illuminated. The vehicle was taken to the dealer, where the brakes and brakes rotors were serviced; however, the failure recurred. The vehicle was taken back to the dealer, where the brakes and brakes rotors were serviced for a second time. The contact stated the brake caliper had exposed out of the vehicle and the brakes were dragging. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 22,880.
On UPWARD slope in 4WD on icy intersection ,proceeding less than 5 mph, emergency braking as a car dead stopped at intersection on green light, hit brakes hard and brake pedal and gas pedal both engaged,, van kept moving forward,, pumped once same effect, ran in to rear of stopped car at 2-3 mph.. I was wearing work boots and gas pedal and brake pedal both at same elevation. brake pedal to close to the gas pedal.. Vehicle is a 4 wd 2500 series van. I have used van for 5,000 miles so I am used to the vehicles characteristics. Practiced a recreation a few times with same result, brake and gas pedal both get depressed upon panic hit with foot.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
Vehicle is unable to move apparently because of a design flaw that allows water to travel down cables into the EIS as described here [XXX] and here [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I was driving on rural roads about 20 mph slowing for a stop light and the back of my vehicle began bucking and making very loud banging noises. I looked under the vehicle and found both welds to the rear differential were sheared off and the axle was only held on by the rear suspension. If I was on the highway I could have been killed.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
Fuel pump recall July 5. No resolution. Vehicle deemed unsafe per recall. Please advise. Have contacted Mercedes Benz and also local dealer. No resolution at this time. What are the next steps?
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .