Check All Seats Assembly – 2020-2021 Mercedes-Benz GLE-Class, GLS-Class & C-Class

October 18, 2021 NHTSA CAMPAIGN NUMBER: 21V818000

Seats Assembled Incorrectly

Incorrectly assembled seats may not properly restrain an occupant during a crash, increasing the risk of injury.

 

NHTSA Campaign Number: 21V818

Manufacturer Mercedes-BenzeBay logo USA, LLC

Components SEATS

Potential Number of Units Affected 27

 

Summary

Mercedes-BenzeBay logo USA, LLC (MBUSA) is recalling certain 2020 GLS450, GLS580, GLE350, GLE450, AMG C63, and 2021 AMG GLE53 vehicles. The seats may have been assembled incorrectly.

 

Remedy

Dealers will inspect and repair the seats, as necessary, free of charge. Owner notification letters are expected to be mailed December 8, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA’s number for this recall is 2021110010.

 

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

 


This is to notify you of the Recall Campaign Launch to check all seat assemblies on 27 Model Year (“MY”) 2020-2021 GLE-Class, GLS-Class and C-Class (167 and 205 platform) vehicles.  The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers.  Affected VINs will be flagged in VMI as “OPEN” on November 24, 2021.

 

Issue

Mercedes-BenzeBay logo AG (“MBAG”), the manufacturer of Mercedes-BenzeBay logo vehicles, has determined that on certain  Model Year (“MY”) 2020-2021 GLE-Class/GLS-Class (167 platform) and C-Class (205 platform) vehicles, the seat assembly condition might not meet  current production specifications.  In this case, seats might have been incorrectly assembled which could increase the risk of injury in the event of a crash.

 

What We’re Doing

MBUSA is conducting a voluntary recall.  An authorized Mercedes-BenzeBay logo dealer will check all seats on the affected vehicles and rework them, if necessary.

 

Parts

The remedy is available and can be performed.  Please note that the estimated replacement rate is 7%. Parts should only be ordered in the event a replacement is required.

 

Customer Notification Timeline

Customer letters will be mailed on 12/3/2021.

 


Check All Seat Assemblies

Model167 and 205

 

Check/test procedure

Depending on the vehicle equipment variant, the check/test procedure must be performed on the left and right front seat, the second and third seat row.

 

1. Check all threaded connections for the attachment of the seats on the vehicle for correct torque.

Torque of threaded connections of complete seats 50 Nm in model 167 (left and right front seat, the second and third seat row)!

For basic data for front seats, see AR91.10-P-1000ME for model 167.

For basic data for second seat row, see AR91.12-P-4026ME for model 167.

For basic data for third seat row, see AR91.12-P-0007MEX for model 167.

 

Torque of threaded connections of front seats 50 Nm in model 205!

For basic data for front seats, see AR91.10-P-1000LW for model 205.

 

Torque of threaded connections of rear seat cushions 8 Nm in model 205!

For basic data for rear seat cushion, see AR91.12-P-1020LWA for model 205.

 

Torque of threaded connections of rear seat backrest 40 Nm in model 205!

For basic data for rear seat backrest, see AR91.12-P-1620LW for model 205 without code 287.

For basic data for rear seat backrest, see AR91.12-P-1720LW for model 205 with code 287.

 

2. Check whether the seats of the second seat row (seat cushion, seat backrest, side cushion and armrest) are present and correspond to the correct equipment variant.

The side cushions and the armrest are installed depending on the equipment variant.

 

3. Check whether the seats of the third seat row (seat cushion and seat backrest) are present and correspond to the correct equipment variant.

 

4. Check whether the switch for the seat backrest release (easy entry feature/seat release) and the emergency release strap (figure 1) are present at the second seat row.

Only in model 167.9 and 167.1 with code 567 (REAR SEAT FORE/AFT ADJUSTMENT)!

Only for vehicles with the third seat row equipment variant.

For basic data for seat backrest release switch, see AR91.29-P-7061MEB.

5. Check whether all head restraints correspond to the correct version in accordance with the vehicle equipment variant (manual or electrical) and that the head restraint guides are present.

 

5.1 Carry out visual check of head restraints.

 

For vehicles with manual head restraints.

5.1.1 Check whether the head restraint guides are present and that the version is correct.

There must be two head restraint guides present per head restraint. One head restraint guide with release knob and one without release knob.

 

5.1.2 Check whether the detent notches are present on one of the head restraint bars.

 

For vehicles with electrical head restraints.

5.1.3 Check whether the head restraint guides are present and that the version is correct.

There must be two head restraint guides without release knob present per head restraint.

5.1.4 Check whether there are no detent notches present on the head restraint bars.

 

Head restraint:

For basic data on front seat, see AR91.16-P-0040ME for model 167.

For basic data on second seat row, see AR91.16-P-1770ME for model 167.

For basic data on third seat row, see AR91.16-P-0005MEX for model 167.

For basic data on front seat, see AR91.16-P-0040LW for model 205.

For basic data on second seat row, see AR91.16-P-1770LW for model 205.

 

Head restraint guide:

For basic data on front seat, see AR91.16-P-0051M for model 167.

For basic data on second seat row, see AR91.16-P-1776ME for model 167.

For basic data on third seat row, see AR91.16-P-0006MEX for model 167.

For basic data on front seat, see AR91.16-P-0050LW for model 205.

For basic data on second seat row, see AR91.16-P-1775LW for model 205.

 

5.2. Perform function test of head restraints.

For basic data on front seat head restraint motor, see AR91.29-P-1432ME for model 167.

For basic data on head restraint motor at second seat row, see AR91.29-P-1460ME for model 167.

For basic data on front seat head restraint motor, see AR91.29-P-1432LW for model 205.

 

6. Check whether the threaded connections of the seat backrest trim (A, figure 2) at the front seats (driver and front passenger seat) are present and correctly attached.

Only for model 167.

For basic data, see AR91.10-P-1912ME for model 167.

 

7. Check whether the fire extinguisher holder (B) at the driver’s seat and fire extinguisher (C) are present (figure 3).

Only for vehicles with code 682 (FIRE EXTINGUISHER).

 

8. Check whether the side inner trims (D, figure 4) and side outer trims (E and F, figure 5) at the front seats (driver and front passenger seat) are present.

For basic data, see AR91.10-P-1200ME for model 167.

For basic data for inner trim, see AR91.10-P-1202LW for model 205.

For basic data for outer trim, see AR91.10-P-1201LWA for model 205.

 

9. Check whether the covers for the child seat anchors at the second seat row are present and correspond to the correct equipment variant (figure 6 – sample illustration).

Depending on the equipment variant, ISOFIX or i-Size child seat anchors.

 

10. Check whether the covers for the child seat anchors at the third seat row are present and correspond to the correct equipment variant (figure 6 – sample illustration).

Only for model 167.9.

Depending on the equipment variant, ISOFIX or i-Size child seat anchors.

 

11. Check whether the cover of the seat belt guide for the lap belt of the second seat row is present.

For basic data, see AR91.40-P-0683ME for model 167.

For basic data, see AR68.30-P-4581LW for model 205.

 

12. Check whether correct equipment variant of seat adjustment unit at the front seats is present.

The Hall sensors (figure 7) may only be installed in vehicles with code 494 (USA VERSION) or 460 (CANADA VERSION).

The Hall sensor is located, in each case, on the inner side of the seat adjustment unit of the front seats.

a. Complete seats OK: Perform work procedure A .

b. Component part or component parts of seats not OK: Perform work procedure A and B .

 

Work procedure A 

Work procedure A must only be performed on vehicles with the following vehicle identification numbers (VIN).

  • W1N1671172A263162
  • 55S2050841U334930
  • 55S2050841U334934

 

1. Replace seat cushion for front passenger seat.

For basic data, see AR91.10-P-3310ME for model 167.

For basic data, see AR91.10-P-5040LWA for model 205 without code 221.

For basic data, see AR91.10-P-5040LW for model 205 with code 221.

 

Work procedure B 

1. Replace affected component parts.

The associated work instructions (AR) documents must be taken from the WIS system in accordance with the equipment variant for the vehicle identification number.

If the Hall sensors of the seat adjustment unit at the front seats have been installed in vehicles without code 494 (USA VERSION) or 460 (CANADA VERSION), the seat adjustment unit at the front seats must be replaced by the correct version in accordance with the vehicle equipment variant!

If – in spite of code 494 (USA VERSION) or 460 (CANADA VERSION) – no Hall sensors and no associated cutout in the seat adjustment unit are present, the seat adjustment unit must be replaced by the correct equipment variant and the Hall sensor installed.

For the installation of the Hall sensors of the seat adjustment unit at the front seats in vehicles with code 494 (USA VERSION) or 460 (CANADA VERSION), please proceed as follows.

 

1.1 Release front seat and remove rear cover caps (if present) from seat rails of seat adjustment unit.

 

1.2 Place suitable pads behind the seat adjustment unit to protect the floor covering against damage/pressure marks caused by the seat rails of the seat adjustment unit when the front seat is tilted.

 

1.3 Switch off ignition.

 

1.4 Clip Hall sensor (G, figure 7) into envisaged cutout in the seat adjustment unit.

 

1.5 Attach Hall sensor (G, figure 7) using screw (H, figure 7) to seat adjustment unit.

Screw, Hall sensor to seat adjustment unit 5 .

Connect electrical connector.

 

1.6. Assemble in reverse order.

 

Primary Parts Information 

Qty. Part Name Part Number
As required ***

 


Chronology :

In June 2020, MBAG launched an investigation based on feedback from a vehicle plant that vehicles might have been released with seats not meeting the specifications. Based on that investigation, MBAG conducted a factory campaign.

In August 2020, MBAG optimized the production process in the plant.

Mercedes BenzeBay logo has received no field complaints regarding the subject seats.

MBAG continued to investigate possible seat assembly deviations that may have occurred prior to August 31, 2020. In the second quarter of 2021, MBAG conducted a review of both plant and supplier documentation for each potentially affected vehicle. That review confirmed a correct seat assembly for most vehicles identified as potentially affected. The review also determined that an undocumented plant re-work process may have addressed other potential seat assembly deviations.

In the third quarter of 2021, MBAG conducted a close, comprehensive analysis of records regarding all of the numerous seat parts in the remaining population of potentially affected vehicles. The analysis could not confirm that all required seat parts had been correctly installed in 27 of the remaining vehicles. On October 8, 2021, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall of those
27 vehicles.

 


6 Affected Products

Vehicles

MAKEMODELYEAR
MERCEDES-BENZeBay logoAMG C632020
MERCEDES-BENZeBay logoAMG GLE532021
MERCEDES-BENZeBay logoGLE3502020
MERCEDES-BENZeBay logoGLE4502020
MERCEDES-BENZeBay logoGLS4502020
MERCEDES-BENZeBay logoGLS5802020

 


12 Associated Documents

Recall 573 Report – AMENDMENT 1

RCLRPT-21V818-6441.PDF 218.386KB

 


Recall 573 Report – AMENDMENT 2

RCLRPT-21V818-2169.PDF 218.399KB

 


Defect Notice 573 Report

RCLRPT-21V818-7117.PDF 218.33KB

 


Manufacturer Notices(to Dealers,etc) – RE: Recall Campaign Initial Notification – Check All Seats Assembly

RCMN-21V818-6981.pdf 198.426KB

 


Recall Acknowledgement

RCAK-21V818-9589.pdf 645.993KB

 


Manufacturer Notices(to Dealers,etc) – Check All Seat Assemblies MY20-21 GLE-Class, GLS-Class and C-Class (167 and 205 platform), November 24, 2021

RCMN-21V818-0891.pdf 804.854KB

 


ISSUED Owner Notification Letter(Part 577)

RCONL-21V818-2916.pdf 284.095KB

 


Recall Quarterly Report #1, 2021-4

RCLQRT-21V818-0828.PDF 211.132KB

 


Remedy Instructions and TSB

RCRIT-21V818-3058.pdf 716.654KB

 


Recall Quarterly Report #2, 2022-1

RCLQRT-21V818-5089.PDF 211.232KB

 


Recall Quarterly Report #3, 2022-2

RCLQRT-21V818-7679.PDF 211.313KB

 


Recall Quarterly Report #4, 2022-3

RCLQRT-21V818-8865.PDF 211.419KB

 


Latest Recalls Documents

 


 

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