Recall 16V901 affects 10 2014 Mercedes-Benz CLA250 vehicles for a brake-booster vacuum fitting that can break. Repair is free at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 10 2014 CLA250 vehicles because a fitting that connects the vacuum line to the brake booster can break. A broken fitting can require more brake-pedal force and increase the risk of a crash; Mercedes-Benz dealers will complete the recall repair free of charge.
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What's wrong?
The brake booster vacuum line on the 2014 Mercedes-Benz CLA250 helps the braking system use engine vacuum to assist pedal force. In plain terms, it lets the booster add power when you press the brake pedal, so stopping does not rely only on leg effort. A fitting connects that vacuum line to the brake booster and must stay sealed and intact.
On affected CLA250 vehicles, the fitting at that connection was not durable enough because of a supplier production deviation. Mercedes-Benz also identified high assembly force and normal vehicle loads, such as vibration and temperature changes, as contributors to the breakage. If the fitting breaks, the booster loses vacuum assistance and the brake pedal needs more force to apply the brakes.
There is no warning sign before failure. The first change a driver notices can be a harder brake pedal or more effort needed to slow the vehicle.
Who's affected?
| 2014 Mercedes-Benz CLA250 | hydraulic brake hose |
|---|---|
| Units affected | 10 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific sedan.
What's the safety risk?
An unexpected need for extra brake pedal pressure makes braking harder and increases the risk of a crash. If the pedal feels harder than normal or braking response changes, drive cautiously and schedule the recall repair soon. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2014 Mercedes-Benz CLA250 is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free brake-booster vacuum-line connector replacement, which fixes the loss of brake assist.
- Bring the recall notice if Mercedes-Benz mailed one. If not, reference recall number 16V901 when you call.
- Drive cautiously until the repair is complete. Leave extra following distance and plan for extra brake-pedal effort.
- Call Mercedes-Benz customer service at 1-800-367-6372 with questions.
What happens at the repair
At the dealer, a Mercedes-Benz technician replaces the connector end fitting at the brake booster, where the vacuum line connects to the brake booster. Parts and labor are covered under the recall. Mercedes-Benz has a general reimbursement plan on file for owners who already paid for a related repair. Bring documentation for the brake booster connector repair and ask the service desk how to submit it under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| December 14, 2016 | NHTSA published the recall |
|---|---|
| January 5, 2017 | Dealer notification began |
| January 5, 2017 | Dealer notification ended |
| February 5, 2017 | Interim owner notification (was planned for this date) |
| July 21, 2017 | Owner notification mailed |
Frequently asked questions
What is recall 16V901?
Recall 16V901 covers 10 2014 Mercedes-Benz CLA250 vehicles with gasoline engines. The brake booster vacuum line connector end fitting can break, which means the driver needs more force on the brake pedal and faces increased crash risk. Mercedes-Benz dealers replace the fitting for free.
What should I do if my 2014 Mercedes-Benz CLA250 is on this recall?
Check your VIN to confirm your specific 2014 Mercedes-Benz CLA250 is included in recall 16V901. If it is, call a franchised Mercedes-Benz dealer or Mercedes-Benz customer service at 1-800-367-6372 to schedule the brake booster connector end fitting replacement. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Mercedes-Benz dealers replace the connector end fitting at the brake booster free of charge. Bring the recall number, 16V901, when you schedule service.
What is the safety risk?
The safety risk is harder braking in a sudden stop. If the brake booster vacuum line connector end fitting breaks, the driver needs increased pressure on the brake pedal to apply the brakes. That condition increases the risk of a crash.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/16V901000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 16V901 |
| NHTSA recall # (full) | 16V901000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 31, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →