Home · 2019 Mercedes-benz Sprinter 4500 · Complaints

What 9 owners told NHTSA about the 2019 Mercedes-benz Sprinter 4500

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (9)Crash / fire / injury (2)Driver assistance (3)Electrical system (3)Speed control (2)Transmission & drivetrain (2)Backup camera & sensors (1)Body & structure (1)Equipment (1)Lane Departure (1)Steering (1)

3 of 9 complaints match · Electrical system · clear filters

Nov 10, 2024Electrical systemSpeed controlDriver assistance

The active distance assist inoperative appears when using the cruise control. This comes on when no traffic in front of the vehicle for 1 hour or less. Also Active Brake Assist functions limited - see operators Manual To reset: follow another vehicle for 5 minutes. This is Very Very Very frustrating and UNSAFE. This function should not automatically shut off. I paid a lot of money to try and figure out the problem. This is VERY UNSAFE for this feature of instantly shut off for no reason and is dangerous. Please fix this with a software update and allow me to download it at my dealer for no charge. Not happy as I use my cruise control on long trips in the USA.

NHTSA ODI 11624407

Sep 9, 2021Electrical system

The 2019+ Mercedes Sprinter EIS (Electronic Ignition System) module is bolted under the driver side dash board to the base of the A pillar where it meets with the firewall. The electrical connector of the module is pointing straight up - this is an issue because any liquids that might spill on the dash (dash cupholder) or any humidity from windshield interior condensation will drip right down the wiring and into the EIS module causing it to short out. _ If the EIS module shorts out, the vehicle will be inoperable until a new unit is fitted. _ The EIS module retails at $1800+ from Mercedes _ Had Mercedes installed the EIS module with the connector facing DOWNWARD - this moisture related issue would not exist. _ There is no drip loop provisions in the wiring. _ Mercedes is aware of the issue as they have created a plastic bag with part number A 638 546 00 35 and they are charging $20 for it. As of right now, Mercedes refuses to fix this issue preventatively. They will only repair it AFTER the EIS module has shorted out. They are refusing to treat this as a warranty claim even though it is clearly a manufacturer defect. Please help? Thank you You can also refer to this thread from other Sprinter owners with the same issue: https://sprinter-source.com/forums/index.php?threads/83054/

NHTSA ODI 11432261

Feb 1, 2021SteeringElectrical system

TRAVELING DOWN THE HIGHWAY AT 65 MPH, THE WHEELS STARTED SHAKING VIOLENTLY, AND WITHIN 5 SECONDS, THE POWER STEERING ASSIST COMPLETELY FAILED. IT TOOK EXCESSIVE STRENGTH TO STEER THE VEHICLE TO SAFETY. MERCEDES-BENZ IS REFUSING TO COVER THE REPAIR ON THE 15-MONTH OLD VAN THAT HAS 43000 MILES ON IT. THE ISSUE HAS BEEN IDENTIFIED AS A FAILED ELECTRIC ACTUATOR.

NHTSA ODI 11390987

Working with the data? Download all 9 complaints as CSV · fetched from NHTSA July 21, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2019 Mercedes-benz Sprinter 4500 verdict →