Replace Front Stationary Roof Panel – 2014-2020 Mercedes-Benz C-Class, CLA, GLA, S-Class, GLC, & GLE

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December 15, 2023 NHTSA CAMPAIGN NUMBER: 23V854000

Roof Panel May Detach From Vehicle

A detached roof panel can become a road hazard, increasing the risk of a crash.

 

NHTSA Campaign Number: 23V854

Manufacturer Mercedes-Benz USA, LLC

Components STRUCTURE

Potential Number of Units Affected 2,976

 

Summary

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.

 

Remedy

Dealers will replace the front panel, free of charge. Owner notification letters were mailed March 22, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check if your Mercedes-Benz has a Recall

 


March 8, 2024

2024010012

Replace Front Stationary Roof Panel – Wave 1

This is to notify you of the Recall Campaign Launch to replace the front stationary roof panel on 1,179 Model Year (“MY”) 2014 – 2020 C-Class, CLA, GLA, S-Class, GLE Coupe vehicles (205, 117, 156, 222, and 292 platform). The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on March 8, 2024.

 

Issue

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY2014 – 2020 C-Class (205 platform), CLA (117 platform), GLA (156 platform), SClass (222 platform), and GLE Coupe (292 platform) vehicles with a panoramic sunroof, the stationary roof panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior repair. In this case, the bonding adhesion of the front panel to the vehicle body might deteriorate gradually over time and could result in the front panel partially or fully detaching from the vehicle, which could increase the risk of a crash and/or injury for other road users.

 

What We’re Doing

MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will inspect and potentially remove the bonded panel and install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive.

 

Parts

The remedy is available and can be performed.

 

Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry Portal. Once the repair is complete, the vehicle may be sold or leased.

Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s).

Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new vehicles covered by this notification until the vehicle has been repaired.

 

Customer Notification Timeline

Customer letters will be mailed on or before March 22, 2024.

 

Customer Reimbursement

Customer reimbursement is not being offered for this campaign.

 


Replace Front Stationary Sunroof Panel

Models 117, 156, 176, 205, 222, 253, and 292 with code 413
Model 222 with code 398

Code 413 corresponds to PANORAMIC SLIDING SUNROOF/PANORAMIC ROOF.

Code 398 corresponds to PANORAMIC ROOF WITH VARIABLE TRANSPARENCY.

 

Note: View panel replacement video prior to performing this procedure:

  • Location: The Learning Link.
  • Course Code:
  • X0025E-US.TTA-0001 Video is for reference purposes, be sure to follow work sequence and instructions in this Procedure.

 

Check/Test Procedure (Only for Models 156 and 222. All other models skip ahead to Work Procedure.)

Check/test procedure must only be performed for the models 156 and 222.

The material condition of the fixed panel must be checked.

  1. Fixed panel (Figure 1) made from glass. no repair needed.

The fixed panel made from glass is foam-padded, the padding (arrows, Figure 1) is visible at the edge.

 

  1. Fixed panel (Figure 2) made from polycarbonate (PC). repair is needed.

The fixed panel made from polycarbonate is not foam-padded.

 

a. The fixed panel is made from polycarbonate: Perform Work Procedure.

b. The fixed panel is made from glass: End measure.

 

 

Work Procedure

  1. Replace front fixed panel of panoramic sliding sunroof.

IMPORTANT: Per WIS, the vehicle must not be driven for at least 10 hours after gluing in the front stationary element.

For basic data for model 117 and 156*, see AR77.21-P-0803NKA.

For basic data for model 205, 222* and 253, see AR77.21-P-0803LF.

For basic data for model 292, see AR77.21-P-0803GQC.

*Note: Models 156 and 222 : Replace polycarbonate fixed panel with Glass panel*

 

Primary Parts Information

Replacement Parts

Qty. Part Name Part Number
As required (1)* Front fixed polycarbonate panel. (Model C117.3) A 117 780 00 22 39
As required (1)* Front fixed polycarbonate panel.(Models WVS205.0/1/2 and VX253.1/9) A 205 780 00 22 39
As required (1)* Front fixed polycarbonate panel.(Model C205.3) A 205 780 33 00 39
As required (1)* Front fixed polycarbonate panel. (Model C292) A 292 780 09 00 39
As required (1) Cleaner A 005 989 19 71eBay
As required (1) Primer A 009 989 75 71
As required (1) Adhesive A 009 989 85 71

* Please always order the fixed panel plus one each of the required ancillary parts (Repair adhesive set: Cleaner A 005 989 19 71eBay, primer A 009 989 75 71, adhesive A 009 989 85 71).

 

Replacement Parts – Models 156 and 222 (Replaces Polycarbonate Panel)

Qty. Part Name Part Number
As required (1)* Front fixed glass panel (Model 156)  A 156 780 12 00
As required (1)* Front fixed glass panel (Model 222)  A 222 780 62 00
As required (1) Repair adhesive kit for front fixed panel (Models 156 and 222)  A 000 989 49 05eBay

* Please always order the fixed panel plus the repair adhesive kit (Repair adhesive kit A 000 989 49 05eBay).

Small parts such as screws, lock nuts, sealing rings, cable ties, fluids, sealant, etc. are not listed in the parts list. The required small parts are taken into account in the budgeting.

 

Baumuster C117.3 WVS205.0/1/2 & VX253.1/9 C205.3 C292 156 222
Front Panel A 117 780 00 22 39 A 205 780 00 22 39 A 205 780 33 00 39 A 292 780 09 00 39 A 156 780 12 00 A 222 780 62 00
Cleaner A 005 989 19 71eBay A 005 989 19 71eBay A 005 989 19 71eBay A 005 989 19 71eBay A 000 989 49 05eBay

(One-component adhesive, primer, & cleaner included)

A 000 989 49 05eBay

(One-component adhesive, primer, & cleaner included)

Primer A 009 989 75 71 A 009 989 75 71 A 009 989 75 71 A 009 989 75 71
Adhesive A 009 989 85 71 A 009 989 85 71 A 009 989 85 71 A 009 989 85 71
Panel Material Polycarbonate Polycarbonate Polycarbonate Polycarbonate Glass Glass

 

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Chronology Supplement for ODI 23-00855-30190-10

In June 2020, MBAG received isolated cases from the field describing instances in which the front roof panel forward of the panoramic sunroof had allegedly detached from the vehicle. MBAG launched an investigation and was able to verify from its internal documentation that in these isolated cases the wrong adhesive was used to bond the panels during a previous repair. MBAG also began to analyze its internal data related to detachment of the front roof panel to understand whether the incidents were indicative of a broader trend or isolated events and found a number of sporadic reports submitted between 2018 – 2020 involving claims of cracked or partially detached panels and found that all involved vehicles that had also undergone a prior service repair to the front roof panel. MBAG began to analyze whether there was a more systemic issue and whether it was related to a prior repair of the front roof panel. MBAG’s technical analysis was carried out from late 2020 and into the first quarter of 2021 and included an analysis of possible deviations from the published repair instructions as not all vehicles that had undergone a prior service repair necessarily reported a subsequent issue with the bonding of the panel. Test setups were prepared by recreating various repair scenarios where an incorrect pre-treatment and bonding adhesives other than the one specific adhesive that had been approved for this repair. Sample roof panels were also returned from the field and analyzed which indicated how the pre-treatment, cleaning and primer application were actually being applied by Mercedes-Benz workshops and any third-party sublets and confirmed that there were deviations from the repair procedures. Accordingly, it was concluded that the prior repair was the root cause for the panel detachment. Further analysis was conducted to identify potentially affected vehicles. On March 12, 2021, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a safety recall.

In November 2023, MBAG became aware of cases in the field, alleging a similar technical issue. An immediate analysis of those cases concluded, that due to a deviation in documentation of cases with a prior warranty repair of the roof panel, certain vehicles were inadvertently not included in the recall population of the recall 21V197. Additionally, out of an abundance of caution vehicles that might have been improperly repaired between the initial determination of the scope of affected vehicles and the recall launch date have been added to the recall population.

On December 15, 2023, MBAG determined that a safety risk cannot be ruled out for the additional vehicles and decided to conduct a recall.

MBAG is currently aware of 228 warranty claims, 0 field reports and 24 consumer complaints received from August 19, 2021 to November 15,2023.

No third-party damages or personal injuries or fatalities were reported.

 


Replace Front Stationary Sunroof Panel – 2014-2020 Mercedes-Benz CLA-Class, GLA-Class, C-Class, S-Class GLC-Class, & GLE-Class Coupe

 

Replace Front Stationary Sunroof Panel – 2014-2020 Mercedes-Benz CLA-Class, GLA-Class, C-Class, S-Class GLC-Class, & GLE-Class Coupe

 


70 Affected Products

Vehicles

MAKE MODEL YEAR
MERCEDES-BENZ AMG C43 2017-2020
MERCEDES-BENZ AMG C63 2015-2020
MERCEDES-BENZ AMG CLA45 2014-2018
MERCEDES-BENZ AMG GLA45 2015
MERCEDES-BENZ AMG GLC43 2017-2019
MERCEDES-BENZ AMG GLC63 2019
MERCEDES-BENZ AMG GLE43 2017-2019
MERCEDES-BENZ AMG GLE63 2017-2019
MERCEDES-BENZ AMG S63 2014-2016
MERCEDES-BENZ AMG S65 2015
MERCEDES-BENZ C300 2015-2020
MERCEDES-BENZ C350E 2016-2018
MERCEDES-BENZ C400 2015
MERCEDES-BENZ C450 2016
MERCEDES-BENZ CLA250 2014-2019
MERCEDES-BENZ GLA250 2015-2019
MERCEDES-BENZ GLC300 2016-2020
MERCEDES-BENZ GLC350E 2018-2019
MERCEDES-BENZ GLE450 2016
MERCEDES-BENZ S550 2014-2017
MERCEDES-BENZ S550E 2015
MERCEDES-BENZ S600 2015-2016
MERCEDES-MAYBACH S560 2018-2020

 


10 Associated Documents

Recall Acknowledgement

RCAK-23V854-7471.pdf 645.64KB

 


Manufacturer Notices(to Dealers,etc)

RCMN-23V854-0502.pdf 141.895KB

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Defect Notice 573 Report

RCLRPT-23V854-4797.PDF 227.032KB

 


Chronology Report

RMISC-23V854-0256.pdf 81.228KB

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Interim Owner Notification Letter(Part 577)

RIONL-23V854-9849.pdf 129.675KB

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Manufacturer Notices(to Dealers,etc)

RCMN-23V854-3714.pdf 880.645KB

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Remedy Instructions and TSB

RCRIT-23V854-6250.pdf 761.013KB

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Recall 573 Report – 03/08/2024

RCLRPT-23V854-8509.PDF 227.015KB

 


ISSUED Owner Notification Letter(Part 577)

RCONL-23V854-0313.pdf 153.041KB

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Manufacturer Notices(to Dealers,etc)

RCMN-23V854-8406.pdf 924.095KB

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Latest Recalls Documents

For the Latest and Most recent Recall Information Visit the link below…

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V854&docType=RCL

 


 

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