News Channel Update |

Warranty

TO: Mercedes-Benz Dealer Principals, General Managers,

Sales Managers, Service Managers, Parts Managers

RE: Emission Extended Warranty – Intake Line Assembly

MY15-18 C-Class (205), MY17-19 E-Class (213), MY16-20
GLC (253), MY17-20 SLC (172) and MY16 SLK(172)

FROM: Teresa Clemmer, Senior Manager – Warranty,

Gregory Gunther - Senior Manager, Vehicle
Compliance and Analysis, Engineering Services
Paul Tonn, Senior Manager – Supply Chain
Management
DATE: July 09, 2024

IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION
This NCU replaces the prior NCUs issued on August 25, 2023, August 31, 2023 respectively and, contains clarification on parts
ordering. 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 extending the warranty coverage on the intake line assembly in certain
Model Year (“MY”) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 15
years/150,000 miles (whichever occurs first) due to the following condition:
•

Under certain circumstances, the partial-load ventilation valve (a part of the intake line assembly) may not work as intended,
resulting in the illumination of the check engine Malfunction Indicator Lamp (‘MIL’). A faulty partial-load ventilation valve
might also increase exhaust gas emission.
Model
C-Class
C-Class Convertible
C-Class Coupe
C-Class Hybrid
E-Class
GLC
GLC Coupe
GLC Hybrid
SLC
SLK

Model Years
2015 – 2018
2017 – 2018
2017 – 2018
2016 – 2018
2017 – 2019
2016 – 2019
2017 – 2019
2018 – 2020
2017 – 2020
2016

Sales Designation
C 300, C 300 4MATIC
C 300 Convertible, C 300 4MATIC Convertible
C 300 Coupe, C 300 4MATIC Coupe
C 350e
E 300, E 300 4MATIC
GLC 300, GLC 300 4MATIC
GLC 300 4MATIC Coupe
GLC 350e 4MATIC
SLC 300
SLK 300

Please be advised that all repairs being claimed under this extended warranty must have a Quick Test uploaded with the following
fault code information and may be audited.
•

P052E71 – Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation has a
malfunction.

All repairs found to be functioning properly or without proper documentation will be returned and the claim debited in full. Only
the following damage codes and parts may be claimed for the aforementioned repairs:

Mercedes-Benz USA, LLC
One Mercedes-Benz Drive

A Mercedes-Benz Group AG Company

Sandy Springs, GA 30328

770.705.0600

News Channel Update |

Warranty

Damage Code(s):
•

0101D – Solenoid valve, crankcase ventilation system

Part(s):
•
•

A 274 090 56 00 80 – Intake Line Assembly (inclusive of oil separator, partial load ventilation valve and full-load ventilation
valve.) Please review LI01.20-P-076894 before ordering the part.
Where applicable, an ECU software update will be provided. Ensure ME control unit software is updated to the latest
version. Documentation for ME control unit software availability (newer software available or no newer software available)
must be uploaded to pXD.

Please note your open backorders for VINs qualifying for the software update will be de-priortized. Open backorders for VINs
not qualifying for the software update will be filled first.
Please note that damage incurred from abuse, accidents, vandalism or other non-warrantable causes that are not covered by the
New Vehicle Limited Warranty are similarly not covered by this Extended Warranty.

IMPORTANT:
1) Always check VMI to determine if a vehicle is covered under the 15 years / 150,000 miles warranty period.
2) Quick Test Documentation with fault code information must be uploaded to pXD.
Please check the VIN in NetStar/VMI before scheduling the appointment for the repair. Applicable vehicles will be visible in
NetStar/VMI on August 25, 2023
Approximately two weeks after the posting of this NCU, a letter will be sent to owners notifying them of the warranty extension.
If customers have already paid to have a repair related to the conditions specified above, they may be eligible for reimbursement.
Please advise the customer to follow the instructions detailed below.

Mercedes-Benz USA, LLC
One Mercedes-Benz Drive

A Mercedes-Benz Group AG Company

Sandy Springs, GA 30328

770.705.0600

News Channel Update |

Warranty

Reimbursement to Customers for Valid Repairs Performed Prior to Warranty Extension
Customers who have already paid to have a repair to the intake line assembly (including related ECU software update) resulting
in a check engine MIL activation may be eligible to receive reimbursement.
Requests for reimbursement may include expenses for 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 MercedesBenz dealership and repairs performed by a non-Mercedes-Benz dealership might not be reimbursed.
The following documentation must be presented to the servicing or closest Mercedes-Benz dealership for
reimbursement.
Original or clear copy of all receipts, invoices and/or repair orders that show:
• 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 an authorized Mercedes-Benz dealership, which may take up to 60
days.

Should you have any questions or concerns, please do not hesitate to open a OneTRAC case online.

Mercedes-Benz USA, LLC
One Mercedes-Benz Drive

A Mercedes-Benz Group AG Company

Sandy Springs, GA 30328

770.705.0600