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NHTSA ID Number: 11031736

Manufacturer Communication Number: CL-Exhaust Valve Assembly

TSB/Document Date: 2026-04-30


Summary

In our continuing efforts to assure the proper performance of MercedeseBay logo-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA ("MBUSA") is extending the coverage for the exhaust valve assembly on your vehicle as follows: 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 result in an engine misfire and potential illumination of the check engine Malfunction Indicator Lamp ('MIL'). Any repairs under this warranty extension must be performed by an authorized Mercedes-Benz dealership. If your preferred authorized Mercedes-Benz dealership performs a diagnosis and confirms that your vehicle has the issue, the repair will be covered under this extended warranty and performed at no cost to you. This extended warranty does not apply to any other components or conditions beyond the ones mentioned above, and standard warranty terms apply, including the exclusions with respect to additional expenses as identified in the Service and Warranty Information booklet.


Mercedes-Benz USA, LLC

Important Emissions Warranty Extension Information A Mercedes-Benz Group AG Company
One Mercedes-Benz Drive

Sandy Springs, GA 30328
Phone: (800) 367-6372

Exhaust Valve Assembly

This information applies to your vehicle - VIN: ee

Dear Mercedes-Benz Owner:

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 the coverage for the exhaust valve assembly on your vehicle
as follows:

- MY2011: Original New Vehicle Limited Warranty of 4 years / 50,000 miles New Vehicle to 12 years / 120,000
miles (whichever occurs first)

- MY2012: Original New Vehicle Limited Warranty of 4 years / 50,000 miles New Vehicle to 11 years / 120,000
miles (whichever occurs first)

- MY2013 - MY 2016: Original New Vehicle Limited Warranty of 4 years / 50,000 miles New Vehicle to 10 years
/ 120,000 miles (whichever occurs first)

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 result in an engine misfire and potential illumination
of the check engine Malfunction Indicator Lamp (‘MIL’).

Any repairs under this warranty extension must be performed by an authorized Mercedes-Benz

dealership.

e lf your preferred authorized Mercedes-Benz dealership performs a diagnosis and confirms that your
vehicle has the issue, the repair will be covered under this extended warranty and performed at no cost
to you.

e This extended warranty does not apply to any other components or conditions beyond the ones
mentioned above, and standard warranty terms apply, including the exclusions with respect to
additional expenses as identified in the Service and Warranty Information booklet.

We hope you are enjoying your MercedeseBay logo-Benz vehicle and we apologize for any inconvenience this may have caused.

Sincerely,
Mercedes-BenzeBay logo USA

Mercedes-Benz USA, LLC

A Mercedes-Benz Group AG Company

One Mercedes-Benz Drive
Sandy Springs, GA 30328
Phone: (800) 367-6372

MercedeseBay logo-Benz USA, LLC

Important Emissions Warranty Extension Information A Mercedes-BenzeBay logo Group AG Company
One Mercedes-Benz Drive

Sandy Springs, GA 30328
Phone: (800) 367-6372

Reimbursement to Customers for Valid Repairs Performed Prior to Receipt of this letter

If your vehicle has exceeded the original warranty’s mileage or time-period, and you have already paid for a repair to the
exhaust valve assembly resulting in a check engine MIL activation, you may be eligible to receive reimbursement under
this warranty extension.

Requests for reimbursement may include expenses for the Mercedes-Benz replacement parts, labor, fees and
taxes. Requests for reimbursement costs that were not related to the aforementioned conditions will not be honored.

Reimbursement may be limited to the amount the repair would have cost if completed by an authorized
Mercedes-Benz dealership and repairs performed by a non-Mercedes-BenzeBay logo dealership might not be reimbursed.

The following documentation must be presented to your servicing or closest Mercedes-Benz dealership for
reimbursement.

Original or clear copy of all receipts, invoices and/or repair orders that show:
e The name and address of the person who paid for the repair.
The Vehicle Identification Number (VIN) of the vehicle that was repaired.
What problem occurred, what repair was done, when it was done and who repaired it.
Only Mercedes-Benz replacement parts were used for the repair.
Fault Code (DTCs) information belonging to this Warranty Extension (if any).
The total cost of the repair expense that is being claimed.
Proof of payment for the repair (copy of front and back of cancelled check, or copy of credit card receipt).
Reimbursement will be paid by a check from your authorized Mercedes-Benz dealership.

Please contact your authorized MercedeseBay logo-Benz dealership for assistance or additional information related to this warranty
extension coverage (or visit www.mbusa.com). If your dealership is unable to remedy your situation, please contact us at
1-800-367-6372.

Mercedes-Benz USA, LLC

A Mercedes-Benz Group AG Company

One Mercedes-Benz Drive
Sandy Springs, GA 30328
Phone: (800) 367-6372

Important Emissions Warranty Extension Information

Mercedes-Benz USA, LLC

A MercedeseBay logo-Benz Group AG Company

One Mercedes-Benz Drive
Sandy Springs, GA 30328
Phone: (800) 367-6372

Please place the enclosed warranty extension addendum to the inside back cover of your vehicle’s Service and
Warranty Information Booklet for future reference if necessary, as well as a copy of this letter.

Warranty Coverage Extension -
exhaust valve assembly with activation
of the check engine Malfunction
Indicator Lamp

The following applies to certain model
year 2011-2016 CL-Class, CLS-Class,
S-Class, E-Class, SL-Class, G-Class,
ML-Class, GL-Class and GLE-Class
vehicles with V8 engines.

The Mercedes-Benz New Vehicle
Limited warranty on the exhaust valve
system is extended to 12

years/ 120,000 miles (whichever
occurs first) for MY2011 and to 11
years/ 120,000 miles (whichever
occurs first) for MY2012

© 2023 Mercedes-BenzeBay logo USA, LLC

and to 10 years/ 120,000 miles
(whichever occurs first) for MY2013 -
MY 2016 from the vehicle’s warranty
start date.

Other components are not covered by
this warranty extension.

Service and Warranty

Mercedes-Benz New Vehicle Limited Warranty Coverage Addendum

This extension of the Mercedes-Benz
New Vehicle Limited Warranty applies
to these vehicles regardless of
ownership.

All other warranty terms and exclusions
apply to this extension.

Mercedes-BenzeBay logo USA, LLC

A Mercedes-Benz Group AG Company

One Mercedes-Benz Drive
Sandy Springs, GA 30328
Phone: (800) 367-6372

1

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TSB/Document ID: CL-Exhaust Valve Assembly

Replacement Service Bulletin Number:

MFR Communication Date: 2023-09-06

MFR Internal Campaign ID/Software Version:

Communication Type: Other

NHTSA Components: ENGINE

MFR Component System:

MFR Component Subsystem:


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