FaultScore

FaultScore report

2015 Mercedes Benz E400 problems

Owners have filed 18 complaints about the 2015 Mercedes Benz E400 with NHTSA between 2015 and 2024. The largest single group is the airbags. Across this model's run it ranks 1 of 3 worst.

C

FaultScore 59/100

Higher is worse. Measured against the other years of the Mercedes Benz E400.

How this is worked out

The numbers

18

Complaints

3

Crashes reported

0

Fires reported

2

Injuries reported

What kind of bad

The letter says how bad. This says what kind — whether this year drew an unusual number of complaints, unusually dangerous ones, or failures that arrived unusually early.

Complaint volume 34 vs 50 Severity 100 vs 50 Early failure not reported
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 34
Against the median year of the Mercedes Benz E400. 50 means typical for this model; 100 means roughly double.
Severity — 100
27.8% of these complaints involved a crash, fire, injury or death, against a national rate of 9.7%.
Early failure — not reported
Too few complaints recorded a mileage to measure this.

How 2015 compares with every other Mercedes Benz E400

Click any bar to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks on a 2015 Mercedes Benz E400

Every complaint is filed against a part. Follow any row for the complaints about that part alone.

Airbags 8 44.4%

1 crashes, 0 fires · median 1,500 mi

Electrical System 3 16.7%

1 crashes, 0 fires · median 1,500 mi

Other & Unspecified 2 11.1%
Driver Assist & Collision Avoidance 1 5.6%
Acceleration & Cruise Control 1 5.6%

1 crashes, 0 fires · median 15,000 mi

Body & Structure 1 5.6%

Median failure at 76,000 miles

Brakes 1 5.6%
Engine & Cooling 1 5.6%

When it fails

Odometer readings owners gave when they filed. About half of all complaints include one.

1,000 – 9,999 miles 2 50.0%
10,000 – 24,999 miles 1 25.0%
75,000 – 99,999 miles 1 25.0%

When owners complained

A spike years after the car went on sale usually means a part wearing out on schedule across the whole fleet — the kind of pattern no single owner can see from inside their own car.

Sep 2015 peak 2 Oct 2024

NHTSA investigations into the 2015 Mercedes Benz E400

An investigation is the step before a recall: the agency has seen enough complaints to look into a pattern itself. An open one means it thinks something may be wrong and nothing has been fixed yet.

1 investigation is still open.

EA21002 Opened 17 Sep 2021 Still open AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE

Desiccated Air Bag Inflator Rupture

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.C...

DP20004 Opened 24 Apr 2020 Closed 9 Oct 2020 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

Rear brake line failure

On April 10, 2020, NHTSA's Office of Defects Investigation (ODI) received a defect petition from Mr. Surjit Singh alleging premature corrosion of the rear brake lines in his 2013 Mercedes-Benz E350 sedan. The petitioner states that he was recently informed by a Mercedes dealer service department that his car had severely rusted brake lines that need[ed] to be replaced immediately at a cost of about $3300. He further stated that the dealer service advisor informed him that he had seen the issue on many cars like his. The petitioner requested ?that NHTSA launch an investigation into this serious...

Complaints that involved harm

Reports where the owner recorded a crash, a fire, an injury or a death.

at 15,000 miles Philadelphia, PA Crash

VEHICLE SPEED CONTROL

COLLISION AVOIDANCE SYSTEM (PRESAFE PLUS) FAILED TO WARN (AS ADVERTISED BY MBUSA) OF AN IMMINENT REAR END COLLISION ON AN EXPRESSWAY. THE SYSTEM IS SUPPOSED TO PROVIDE AN AUDIBLE WARNING SIGNAL BASED ON THE RATE OF CHANGE OF THE CLOSING DISTANCE BETWEEN MB AND A VEHICLE IN FRONT. MOREOVER, IF THE DRIVER IGNORES THE WARNING SIGNAL, THE MB IS SUPPOSED TO APPLY BRAKES AUTOMATICALLY. NEITHER OF THESE TWO EVENTS TOOK PLACE, RESULTING IN A REAR END COLLISION. THE HIGHWAY BEFORE AND AT THE POINT OF COLLISION WAS STRAIGHT WITH NO CURVES. AFTER COLLISION DAMAGE REPAIR BY AN MB DEALERSHIP AND ASSURANCE FROM THE DEALER THAT THE SAFETY SYSTEMS WERE OPERATIONAL, I TESTED THE VEHICLE MULTIPLE TIMES BY DRIVING THE MB INTO A VARIETY OF LARGE BOXES THE FRONTS OF WHICH WERE COVERED WITH METALLIC FOIL. ALL TESTS FAILED TO PROVIDE BOTH AN AUDIBLE WARNING AS WELL AS AUTOMATIC BRAKING (SEE WWW.YOUTUBE.COM/WATCH?V=6_D9A_AXAV4 FOR ONE EXAMPLE OF TEST). MBUSA ADVERTISING IN 2015 TOUTED THESE SAFETY FEATURES ON TV AND YOUTUBE VIDEOS. WHAT WAS MISSING FROM THESE INFOMERCIALS IS INFORMATION ON THE RELIABILITY OF THESE "SAFETY" SYSTEMS (I.E., WHAT IS THE PROBABILITY THAT THE SYSTEM WILL FUNCTION AS ADVERTISED). I SUSPECT THAT THIS PROBABILITY IS QUITE LOW, AND IF SO, THIS FACT SHOULD HAVE BEEN PROVIDED TO THE CONSUMER. ALSO, IF MY EXPERIENCE WITH THE ACTUAL ACCIDENT AND MY ADDITIONAL TESTING IS ANY INDICATION OF RELIABILITY, MERC3DES BENZ VEHICLES INCORPORATING PRESAFE PLUS SHOULD BE SUBJECTED TO A NHTSA RECALL.

NHTSA complaint #11072118 — an unverified report by a vehicle owner.

at 1,500 miles Fairfax Station, VA Crash 2 injured

AIR BAGS

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ E400. WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE WAS EQUIPPED WITH A DISTRONIC DEVICE THAT ALLOWED THE CONTACT TO STOP THE VEHICLE IN THE EVENT OF A CRASH. THE CONTACT STATED THAT THE DEVICE FAILED AND CAUSED THE CONTACT TO CRASH INTO THE REAR OF ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT AND THE PASSENGER SUSTAINED MINOR INJURIES, WHICH REQUIRED THE CONTACT TO SEEK MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO A TOW LOT AND THEN TO A DEALER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 1,500.

NHTSA complaint #10767459 — an unverified report by a vehicle owner.

at 1,500 miles Fairfax Station, VA Crash 2 injured

ELECTRICAL SYSTEM

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ E400. WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE WAS EQUIPPED WITH A DISTRONIC DEVICE THAT ALLOWED THE CONTACT TO STOP THE VEHICLE IN THE EVENT OF A CRASH. THE CONTACT STATED THAT THE DEVICE FAILED AND CAUSED THE CONTACT TO CRASH INTO THE REAR OF ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT AND THE PASSENGER SUSTAINED MINOR INJURIES, WHICH REQUIRED THE CONTACT TO SEEK MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO A TOW LOT AND THEN TO A DEALER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 1,500.

NHTSA complaint #10767459 — an unverified report by a vehicle owner.

The most recent complaints

In the owners' own words, exactly as filed with NHTSA.

Manahawkin, NJ

SERVICE BRAKES

The sub frame of this car is being replaced under a warranty extension due to severe rusting and separation creating an extremely unsafe driving condition. It was determined during inspection the rear brake lines were also corroded. This is also due to environmental exposure and substandard materials of construction. Many E classes of the W212 and prior have this concern but Mercedes is not covering the brake lines as part of this warranty. In fact they are charging up to $4000 to replace with the subframe already removed!! This is highly concerning as this is a safety concern that must be covered.

NHTSA complaint #11620728 — an unverified report by a vehicle owner.

at 76,000 miles Decatur, GA

STRUCTURE

The contact owns a 2015 Mercedes-Benz E400. The contact stated that while the vehicle was parked, the steering wheel material was peeling off. Additionally, the driver’s and passenger’s side window buttons were peeling. The contact stated that the dashboard was bubbling. The vehicle had not been diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 76,000.

NHTSA complaint #11542690 — an unverified report by a vehicle owner.

New York, NY

ELECTRICAL SYSTEM

Went on a 2000 miles road trip and my blind spot monitoring systems and then my turn signals stopped working.

NHTSA complaint #11483931 — an unverified report by a vehicle owner.

New York, NY

LANE DEPARTURE: BLIND SPOT DETECTION

Went on a 2000 miles road trip and my blind spot monitoring systems and then my turn signals stopped working.

NHTSA complaint #11483931 — an unverified report by a vehicle owner.

Wayne, NJ

ENGINE

Purchased new 2015 MB e400 in 12/2014 MB issued a bulliten in 12/15 (1 year later) indicating that the engines may experience a problem with the timing belt harness which may cause engine failure. We have the exact same issue now at 69k miles and MB refuses to acknowledge the issue claiming i need a new engine. I cannot use the car for fear of engine failure which may cause death or serious injury

NHTSA complaint #11464309 — an unverified report by a vehicle owner.

Bedford, TX

AIR BAGS

TL* TAKATA RECALL. THE CONTACT OWNS A 2015 MERCEDES-BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT CALLED MERCEDES-BENZ OF GRAPEVINE (1300 TEXAN TRAIL, GRAPEVINE, TX 76051, (817) 310-9748) WHERE IT WAS CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

NHTSA complaint #11413057 — an unverified report by a vehicle owner.

Bethesda, MD

AIR BAGS

TL* TAKATA RECALL. THE CONTACT OWNS A 2015 MERCEDES BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE VEHICLE WAS NOT TAKEN TO DEALER TO GET DIAGNOSED. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA complaint #11398426 — an unverified report by a vehicle owner.

Oyster BAY, NY

AIR BAGS

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ E400. IN FEBRUARY OF 2019, THE VEHICLE WAS INCLUDED IN AN UNKNOWN RECALL REGARDING THE PASSENGER SIDE AIR BAG. RALLYE MOTORS (1600 NORTHERN BLVD, ROSLYN, NY 11576, (516) 625-1000) STATED THAT THERE WAS NO REMEDY FOR THE RECALL. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

NHTSA complaint #11232014 — an unverified report by a vehicle owner.

East Brunswick, NJ

AIR BAGS

TL* TAKATA RECALL. THE CONTACT OWNS A 2015 MERCEDES-BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED MERCEDES-BENZ OF EDISON (LOCATED AT 910 US-1, EDISON, NJ 08817, (732) 549-6600) AND WAS INFORMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND INFORMED THE CONTACT THAT THE PART WOULD BECOME AVAILABLE IN MAY OF 2020. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA complaint #11195040 — an unverified report by a vehicle owner.

Hixson, TN

AIR BAGS

TL* TAKATA RECALL. THE CONTACT OWNS A 2015 MERCEDES-BENZ E400A. THE CONTACT RECEIVED AN UNKNOWN RECALL NOTICE REGARDING THE AIR BAGS. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS CONTACTED AND STATED THAT THE PARTS WOULD NOT BE AVAILABLE UNTIL 2020. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA complaint #11184861 — an unverified report by a vehicle owner.

Sailsbury, MD

AIR BAGS

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V627000 (AIR BAGS); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER (MERCEDES-BENZ OF WILMINGTON, 3801 LANCASTER PIKE, WILMINGTON, DE) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA complaint #11088782 — an unverified report by a vehicle owner.

at 15,000 miles Philadelphia, PA Crash

VEHICLE SPEED CONTROL

COLLISION AVOIDANCE SYSTEM (PRESAFE PLUS) FAILED TO WARN (AS ADVERTISED BY MBUSA) OF AN IMMINENT REAR END COLLISION ON AN EXPRESSWAY. THE SYSTEM IS SUPPOSED TO PROVIDE AN AUDIBLE WARNING SIGNAL BASED ON THE RATE OF CHANGE OF THE CLOSING DISTANCE BETWEEN MB AND A VEHICLE IN FRONT. MOREOVER, IF THE DRIVER IGNORES THE WARNING SIGNAL, THE MB IS SUPPOSED TO APPLY BRAKES AUTOMATICALLY. NEITHER OF THESE TWO EVENTS TOOK PLACE, RESULTING IN A REAR END COLLISION. THE HIGHWAY BEFORE AND AT THE POINT OF COLLISION WAS STRAIGHT WITH NO CURVES. AFTER COLLISION DAMAGE REPAIR BY AN MB DEALERSHIP AND ASSURANCE FROM THE DEALER THAT THE SAFETY SYSTEMS WERE OPERATIONAL, I TESTED THE VEHICLE MULTIPLE TIMES BY DRIVING THE MB INTO A VARIETY OF LARGE BOXES THE FRONTS OF WHICH WERE COVERED WITH METALLIC FOIL. ALL TESTS FAILED TO PROVIDE BOTH AN AUDIBLE WARNING AS WELL AS AUTOMATIC BRAKING (SEE WWW.YOUTUBE.COM/WATCH?V=6_D9A_AXAV4 FOR ONE EXAMPLE OF TEST). MBUSA ADVERTISING IN 2015 TOUTED THESE SAFETY FEATURES ON TV AND YOUTUBE VIDEOS. WHAT WAS MISSING FROM THESE INFOMERCIALS IS INFORMATION ON THE RELIABILITY OF THESE "SAFETY" SYSTEMS (I.E., WHAT IS THE PROBABILITY THAT THE SYSTEM WILL FUNCTION AS ADVERTISED). I SUSPECT THAT THIS PROBABILITY IS QUITE LOW, AND IF SO, THIS FACT SHOULD HAVE BEEN PROVIDED TO THE CONSUMER. ALSO, IF MY EXPERIENCE WITH THE ACTUAL ACCIDENT AND MY ADDITIONAL TESTING IS ANY INDICATION OF RELIABILITY, MERC3DES BENZ VEHICLES INCORPORATING PRESAFE PLUS SHOULD BE SUBJECTED TO A NHTSA RECALL.

NHTSA complaint #11072118 — an unverified report by a vehicle owner.

Pittsburgh, PA

UNKNOWN OR OTHER

TAKATA RECALL

NHTSA complaint #11062673 — an unverified report by a vehicle owner.

Miami, FL

AIR BAGS

TAKATA RECALL #17V627, I WAS NOTIFIED OF THE RECALL BUT UNABLE TO GET THE DEFECTIVE PARTS REPLACED AS THE DEALER REPORTED THAT REPLACEMENT PARTS ARE STILL NOT AVAILABLE.

NHTSA complaint #11055456 — an unverified report by a vehicle owner.

Miami, FL

ELECTRICAL SYSTEM

TAKATA RECALL #17V627, I WAS NOTIFIED OF THE RECALL BUT UNABLE TO GET THE DEFECTIVE PARTS REPLACED AS THE DEALER REPORTED THAT REPLACEMENT PARTS ARE STILL NOT AVAILABLE.

NHTSA complaint #11055456 — an unverified report by a vehicle owner.

Pelham, AL

UNKNOWN OR OTHER

NOT MADE AWARE OF STEERING WHEEL CLOCK SPRING RECALL BY MANUFACTURER. ISSUE APPARENTLY STILL UNRESOLVED.

NHTSA complaint #11040453 — an unverified report by a vehicle owner.

at 1,500 miles Fairfax Station, VA Crash 2 injured

AIR BAGS

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ E400. WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE WAS EQUIPPED WITH A DISTRONIC DEVICE THAT ALLOWED THE CONTACT TO STOP THE VEHICLE IN THE EVENT OF A CRASH. THE CONTACT STATED THAT THE DEVICE FAILED AND CAUSED THE CONTACT TO CRASH INTO THE REAR OF ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT AND THE PASSENGER SUSTAINED MINOR INJURIES, WHICH REQUIRED THE CONTACT TO SEEK MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO A TOW LOT AND THEN TO A DEALER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 1,500.

NHTSA complaint #10767459 — an unverified report by a vehicle owner.

at 1,500 miles Fairfax Station, VA Crash 2 injured

ELECTRICAL SYSTEM

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ E400. WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE WAS EQUIPPED WITH A DISTRONIC DEVICE THAT ALLOWED THE CONTACT TO STOP THE VEHICLE IN THE EVENT OF A CRASH. THE CONTACT STATED THAT THE DEVICE FAILED AND CAUSED THE CONTACT TO CRASH INTO THE REAR OF ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT AND THE PASSENGER SUSTAINED MINOR INJURIES, WHICH REQUIRED THE CONTACT TO SEEK MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO A TOW LOT AND THEN TO A DEALER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 1,500.

NHTSA complaint #10767459 — an unverified report by a vehicle owner.