2015 Mercedes-Benz C400: recalls and complaints

NHTSA lists 8 recall campaigns for the 2015 Mercedes-Benz C400. The newest campaign is 23V854000. NHTSA received the report on 15 Dec 2023. The NHTSA record gives the component Structure / Body / Roof and Pillars. NHTSA has 10 complaints on file for this model year. 2 NHTSA investigations name this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 23V854000, in the NHTSA record

Dealers will replace the front panel, free of charge. Owner notification letters were mailed on August 2, 2024. Owner notification letters will be mailed in phases, on, March 22,2024, and August 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.

NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.
NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on 1 Oct 2026. Complaint file through 30 Sep 2026. Recall file through 30 Sep 2026.

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

8 campaigns, newest first. 588,725 units in total.

23V85400015 Dec 2023Structure / Body / Roof and Pillars
21V19700019 Mar 2021Structure / Body / Roof and Pillars
19V7870001 Nov 2019Communication
17V6270006 Oct 2017Air Bags / Frontal
15V84500016 Dec 2015Steering / Electric Power Assist System
15V13800010 Mar 2015Fuel System, Gasoline / Delivery / Fuel Pump
15V08700011 Feb 2015Exterior Lighting / Headlights
14V59800026 Sep 2014Steering

23V854000Received 15 Dec 2023. 2,976 units.
Structure / Body / Roof and Pillars
Defect, in the NHTSA record
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for specific vehicle details. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair, allowing the front panel to detach from the vehicle.
Consequence, in the NHTSA record
A detached roof panel can become a road hazard, increasing the risk of a crash.
Remedy, in the NHTSA record
Dealers will replace the front panel, free of charge. Owner notification letters were mailed on August 2, 2024. Owner notification letters will be mailed in phases, on, March 22,2024, and August 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.
Report filed by Mercedes-Benz USA, LLC. Owner notification date in the NHTSA record: 22 Mar 2024.
21V197000Received 19 Mar 2021. 15,096 units.
Structure / Body / Roof and Pillars
Defect, in the NHTSA record
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.
Consequence, in the NHTSA record
The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash.
Remedy, in the NHTSA record
Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification letters were mailed on September 3, 2021 and October 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
Report filed by Mercedes-Benz USA, LLC. Manufacturer campaign number 2021070010. Owner notification date in the NHTSA record: 3 Sep 2021.
19V787000Received 1 Nov 2019. 24,226 units.
Communication
Defect, in the NHTSA record
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf
Consequence, in the NHTSA record
An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Remedy, in the NHTSA record
MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.
Report filed by Mercedes-Benz USA, LLC.. Manufacturer campaign number 2019120008. Owner notification date in the NHTSA record: 23 Dec 2019.
17V627000Received 6 Oct 2017. 495,290 units.
Air Bags / Frontal
Defect, in the NHTSA record
Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.
Consequence, in the NHTSA record
If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
Remedy, in the NHTSA record
MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
Report filed by Mercedes-Benz USA, LLC.. Manufacturer campaign number 2017110011. Owner notification date in the NHTSA record: 6 Dec 2017.
15V845000Received 16 Dec 2015. 28,452 units.
Steering / Electric Power Assist System
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
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.
Remedy, in the NHTSA record
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.
Report filed by Mercedes-Benz USA, LLC.. Manufacturer campaign number 2015120006. Owner notification date in the NHTSA record: 15 Jan 2016.
15V138000Received 10 Mar 2015. 3,039 units.
Fuel System, Gasoline / Delivery / Fuel Pump
Defect, in the NHTSA record
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 C300 4matic and C400 4matic vehicles manufactured April 7, 2014, to July 25, 2014. In the affected vehicles, the fuel delivery module may be improperly secured to the fuel tank. Secondly, electrical wires that connect to the fuel delivery module might have been pinched between the flange of the fuel delivery module and the tank.
Consequence, in the NHTSA record
If the locking plate is not properly secured to the fuel delivery module it may become loose, and leak fuel, increasing the risk of a fire. If the electrical wires are pinched, the fuel pump may stop working, resulting in a stall, thereby increasing the risk of a crash.
Remedy, in the NHTSA record
MBUSA will notify owners, and dealers will inspect the vehicles for improperly secured locking plates and pinched wires, correcting the vehicles as necessary, free of charge. The recal began on April 24, 2015. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2015030004.
Report filed by Mercedes-Benz USA, LLC.. Manufacturer campaign number 2015030004. Owner notification date in the NHTSA record: 24 Apr 2015.
15V087000Received 11 Feb 2015. 9,137 units.
Exterior Lighting / Headlights
Defect, in the NHTSA record
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2015 C300 and C400 vehicles manufactured from June 18, 2014, through September 5, 2014, that fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment." The affected vehicles were assembled with horizontal adjustment mechanisms that allow the owner to change the horizontal adjustment used during the manufacturing process, instead of the proper sealing caps.
Consequence, in the NHTSA record
If the original horizontal adjustment is used to alter the low beam aim, the misaimed headlamp may not properly illuminated the road or cause increased glare to oncoming drivers, which increases the risk of a crash.
Remedy, in the NHTSA record
Mercedes-Benz will notify owners, and dealers will replace the horizontal adjustment mechanisms on the headlamps with sealing caps on the affected vehicles. The recall began May 23, 2016. Owners may contact Mercedes at 1-800-367-6372.
Report filed by Mercedes-Benz USA, LLC.. Manufacturer campaign number 2015020003. Owner notification date in the NHTSA record: 13 May 2016.
14V598000Received 26 Sep 2014. 10,509 units.
Steering
Defect, in the NHTSA record
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2015 C300 4Matic and C400 4Matic vehicles manufactured March 28, 2014, to September 18, 2014. If the steering coupling interlock mechanism is not locked in place, the sliding shaft, which is part of the steering column, could become disengaged from the steering coupling socket due to vibrations, steering thrust, or load feedback from the road surface.
Consequence, in the NHTSA record
If the sliding shaft becomes disengaged from the steering coupling socket, the driver may experience noises, steering backlash, and in a worst case, loss of steering control, which may increase the risk of a crash.
Remedy, in the NHTSA record
MBUSA has notified owners, and dealers will inspect the steering coupling interlock mechanism to verify that it is in the locked position, free of charge. The recall began on October 1, 2014. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2014090008.
Report filed by Mercedes-Benz USA, LLC.. Manufacturer campaign number 2014090008. Owner notification date in the NHTSA record: 1 Oct 2014.

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

10 complaints, 13 component mentions.

A complaint can name more than one component. Each component that a complaint names is one component mention. This model year has fewer than 50 component mentions, so the table shows the number of mentions only.

2015 Mercedes-Benz C400: component mentions in complaints
Component		Mentions
Structure		6
Visibility/Wiper		1
Electronic Stability Control (ESC)		1
Electrical System		1
Vehicle Speed Control		1
Engine		1
Unknown or Other		1
Suspension		1

Complaints that report a crash: 0
Complaints that report a fire: 0
Injuries in the complaints: 0
Deaths in the complaints: 0
Date of the newest complaint: 8 Aug 2025

These figures are the entries of the persons who sent the complaints.

Complaint: A report about a possible safety problem that a person sends to NHTSA. This site shows the number of complaints and not their text.

Complaints about the 2015 Mercedes-Benz C400, by the year NHTSA received them. The largest year is 2024, with 4 complaints.

Investigations

NHTSA investigations that name the 2015 Mercedes-Benz C400
Number	Type	Subject	Component	Opened	Closed	Campaign
EA21002	Engineering analysis	Desiccated Air Bag Inflator Rupture	Air Bags / Frontal / Driver Side / Inflator Module	17 Sep 2021	Open
PE21001	Preliminary evaluation	Front Roof Panel Detachment	Structure / Body / Roof and Pillars	8 Jan 2021	14 Oct 2021	21V197000

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

20158

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

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Official channels

NHTSA VIN lookupNHTSA shows the unrepaired recalls of one vehicle from its VIN or its license plate.
NHTSA: report a safety problemThe NHTSA form for a complaint about a vehicle, a tire, a child seat or equipment.
NHTSA page of the 2015 Mercedes-Benz C400The recalls, the complaints and the investigations that NHTSA shows for this model year.

Cite this page

Recall Register. 2015 Mercedes-Benz C400: recalls and complaints. https://recallregister.com/vehicle/mercedes-benz/c400/2015/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through 30 Sep 2026.

Sources

Source: NHTSA Office of Defects Investigation
Licence: US government work, public domain
Recall file through: 30 Sep 2026
Complaint file through: 30 Sep 2026
First complaint in the file: 1 Jan 1995
Manufacturer in the recall file: Mercedes-Benz USA, LLC

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 2015 Mercedes-Benz C400?: 588,725 units in 8 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Mercedes-Benz C400 have for all model years?: NHTSA lists 8 recall campaigns for the Mercedes-Benz C400, model year 2015. 8 of them name the 2015 model year.
Which component do the complaints about the 2015 Mercedes-Benz C400 name most often?: Structure: 6 of 13 component mentions.
Is an NHTSA investigation of the 2015 Mercedes-Benz C400 open?: 1 investigation has no closing date in the NHTSA file, of 2 that name this model year.