ClaimRight · Warranty Denial Guides

Mercedes-Benz E63 warranty claim denied?

172 manufacturer communications on file 6 warranty extensions / campaigns 2010–2019 model years covered

If Mercedes-Benz recently denied a warranty claim on your E63 (model years 2010–2019), you're not alone, and the denial may not be the final word. Mercedes-Benz USA has filed 172 manufacturer communications with NHTSA for this model, including 6 formal warranty extensions and service campaigns covering components such as the rear subframe and, on related V8-equipped models, the exhaust valve assembly. These filings show the manufacturer has acknowledged specific, documented issues affecting vehicles like yours. A denial at the dealer level doesn't always reflect the full picture of what's been reported or extended by the manufacturer. Many owners don't realize that denials can be reconsidered when supported by the right documentation, service history, and reference to applicable bulletins or extensions. Understanding what's been filed for your vehicle is the first step toward knowing whether your denial warrants a second look. A free assessment can help you see what documentation applies to your specific vehicle and what your realistic options are, with no obligation and no upfront cost. Success-only pricing means you pay nothing unless there's a path forward worth pursuing.

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What Mercedes-Benz has documented for the E63

Filed with NHTSA by the manufacturer. Warranty extensions are the strongest signal — the manufacturer acknowledging a defect and extending coverage for it.

2023-11-03 · ELW-Fuel Filter Warranty extension
In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (“MBUSA”) is exte...
Official NHTSA document →
2023-09-22 · ELW -Intake Line Warranty extension
In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (“MBUSA”) is extending...
Official NHTSA document →
2023-08-03 · ELW-ExhaustValve Warranty extension
In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is exten...
Official NHTSA document →
2023-03-31 · CL-ELWSubframe Warranty extension
Mercedes-Benz USA, LLC (MBUSA) has extended the warranty for the rear subframe on the vehicles listed below, from the original New Vehicle Limited Warranty of 4 years/50,000 miles...
Official NHTSA document →
2023-03-30 · CL-ELWExhaustVal Warranty extension
Why the warranty extension? On certain Model Year 2011-2016 CL/CLS/S/E/ML/SL/G/GL/GLE-Class vehicles with V8 engines, the exhaust valve assembly might not work properly and resul...
Official NHTSA document →
2023-03-10 · ELW-RearSubframe Warranty extension
Mercedes-Benz USA, LLC (MBUSA) has extended the warranty for the rear subframe on the vehicles listed below, from the original New Vehicle Limited Warranty of 4 years/50,000 miles...
Official NHTSA document →
2024-11-20 · LI27.19-P-072588
Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission...
Official NHTSA document →
2024-11-13 · LI82.10-P-078069
Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any...
Official NHTSA document →
2024-10-23 · LI82.35-P-078467
Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1....
Official NHTSA document →
2024-10-01 · LI27.00-P-074450
Complaint Tension-releasing impact of the propeller shaft with the force-free in D "KID" function, after vehicle has stopped. Cause The tension-releasing jolt in the drivetrain ori...
Official NHTSA document →
2024-09-28 · LI82.70-P-077433
Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during...
Official NHTSA document →
2024-09-21 · LI82.10-P-078307
Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp,...
Official NHTSA document →
2024-09-17 · LI42.10-P-063502
Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions Cause Frictional vibrations Remedy AMG brake systems are designed for high l...
Official NHTSA document →
2024-09-10 · LI82.10-P-078301
Complaint Headlamp or front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to...
Official NHTSA document →
2024-09-10 · LI82.10-P-078302
Complaint Headlamps fogged or droplets forming. Cause Due to its outlet openings, the headlamp is an "open system". This means that acidic gases, moisture, dirt and exhaust gases c...
Official NHTSA document →
2024-09-09 · LI91.25-P-051599
Complaint Dynamic seat function or multicontour system inoperative Noises from area of lateral support bladder Cause Lateral support bladder leaking Remedy Replacement of complete...
Official NHTSA document →
2024-08-10 · NCU - 2022080005
Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE, GL...
Official NHTSA document →
2024-08-09 · CL - 2022080005
In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class, S-Class,...
Official NHTSA document →
2024-03-12 · NCU - 24240304
As previously reported, to enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has...
Official NHTSA document →
2024-03-11 · LI72.20-P-075746
Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Reme...
Official NHTSA document →
2024-02-23 · LI82.60-P-077553
The radio station favorites list is no longer present after bus idle Saving process during download Perform software update in control unit HU6 in the head unit (A26/17) to v...
Official NHTSA document →
2024-01-24 · LI46.10-P-077313
The steering wheel generates grinding noises between the steering wheel and steering column switch module during steering maneuvers See example file in the attachments area: Lenk...
Official NHTSA document →
2024-01-24 · LI46.10-P-077314
Noises in the steering column area when steering. Under analysis. Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in t...
Official NHTSA document →
2024-01-18 · NCU-OTAcommNoMMC
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that in certain MY 2017-2021 C-Class, CLA, CLS, E-Class, GLC, GLE, GLS, AMG GT, S-Class, SL,...
Official NHTSA document →
2023-12-07 · OTA-Comm Mod SW
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, C-Class, CLA, CLS, E-Class, EQB, G-Class, GLA, GLB,...
Official NHTSA document →

Common questions

Why would Mercedes-Benz deny a warranty claim on my E63?
Dealers and manufacturers deny claims for various reasons, including determinations about wear-and-tear, maintenance history, or whether a specific repair falls under an existing warranty or extension. Sometimes a denial overlooks applicable manufacturer bulletins or extended coverage that was filed with NHTSA. Reviewing your service records against documented manufacturer communications can clarify whether the denial accounted for all relevant information.
What is a warranty extension and could one apply to my vehicle?
A warranty extension is a manufacturer-issued program that lengthens coverage for a specific component beyond the original warranty, usually after a pattern of related issues is identified. Mercedes-Benz has filed 6 such extensions for the E63 model range, including ones covering the rear subframe and exhaust valve assembly on certain model years. Whether one applies depends on your specific vehicle's model year and repair history.
Can a denied Mercedes-Benz warranty claim be reconsidered?
Denials are not always permanent. Many can be revisited when owners provide additional documentation, such as service records, repair invoices, or references to manufacturer bulletins and extensions that may apply to the vehicle. Reconsideration processes vary by case and are not guaranteed to change the outcome, but a documented request is often more effective than an initial informal denial at the dealer level.
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ClaimRight is a consumer advocacy and document-preparation service. We are not a law firm, do not provide legal advice, and make no promises about the outcome of any individual claim. Bulletin data is sourced from public NHTSA filings and refreshed weekly. All vehicle guides