The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2015 C300 and C400 4matic sedans manufactured January 27, 2014, to December 1, 2014. Due to an error in the electric power steering control unit software, the affected vehicles may have a loss of electric power steering assist.
The risk
If the vehicle experiences a loss of power steering assist, extra steering effort will be required, especially at lower speeds, increasing the risk of a vehicle crash.
The fix
MBUSA will notify owners, and dealers will update the power steering software, free of charge. The recall began in January 15, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall details
| NHTSA campaign | 15V-845 (15V845000) |
|---|---|
| Manufacturer number | 2015120006 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Steering › Electric power assist system |
| Report date | December 16, 2015 |
| Owners notified | January 15, 2016 |
| Vehicles affected | 28,452 |
| Initiated by | Manufacturer |
Vehicles covered
Plus 1 other model/year combinations not covered on this site.
Owner complaints about the steering
Frequently asked questions
Is the recall 15V-845 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: MBUSA will notify owners, and dealers will update the power steering software, free of charge. The recall began in January 15, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 28,452 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.