Check Rear Brake Caliper Housing Bolts – 2020-2021 Mercedes-Benz CLA-Class & GLA-Class

March 4, 2022 NHTSA CAMPAIGN NUMBER: 22V125000

Loose Rear Brake Caliper Housing Fasteners

Reduced brake performance can increase the risk of a crash. In addition, detached brake components can create a road hazard, and increase the risk of a crash for other drivers.

 

NHTSA Campaign Number: 22V125

Manufacturer Mercedes-Benz USA, LLC

Components SERVICE BRAKES, HYDRAULIC

Potential Number of Units Affected 4

 

Summary

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 AMG CLA 35 and 2021 GLA 250 vehicles. The rear brake caliper housing fasteners may be loose, which can reduce brake performance or cause rear brake components to detach from the vehicle.

 

Remedy

Dealers will inspect and tighten the fasteners on the rear brake caliper housings, as necessary, free of charge. Owner notification letters were mailed March 25, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.

 

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

 


2022030006

Check Rear Brake Caliper Housing Bolts

This is to notify you of the Recall Campaign Launch to check the rear brake caliper housing bolts on 4 Model Year (“MY”) 2020-2021 CLA-Class and GLA-Class (118 and 247 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 March 11, 2022.

 

Issue

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020-2021 CLA-Class (118 platform) and GLA-Class (247 platform) vehicles, the rear brake caliper housing fasteners might not meet current production torque specifications. This might affect only one rear brake caliper housing per vehicle. Should this occur, affected fasteners might loosen. In this case, an incorrectly torqued fastener might reduce the braking performance of the affected rear brake, which could increase the risk of a crash.  In addition, certain rear brake components may separate from the rear brake assembly and result in a road hazard, which could increase the risk of a crash for the following traffic or other road users.

 

What We’re Doing

MBUSA will conduct a voluntary recall.  An authorized Mercedes-Benz dealer will check the fastener torque on the potentially affected rear brake caliper housings on the affected vehicles, and if necessary, torque them according to specification.

 

Parts

The remedy is available and can be performed.   Please note that the estimated replacement rate is less than 1%. Parts should only be ordered in the event a replacement is required.

Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY20-21 CLA-Class and GLA-Class 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 Star TekInfo. 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 MY20-21 CLA-Class and GLA-Class vehicles covered by this notification until the vehicle has been repaired.

 


Correct torque for guide pin threaded connection at rear axle brake calipers

Model 177, 118, 243 and 247

 

Work Procedure

  1. Release screws (A, figure 1) for left and right guide pins at rear axle brake calipers and then tighten with the specified torque.

Screw, guide pin to brake caliper 30 Nm (BA42.10-P-1000-12X).

 


Chronology :

At the end of December 2021, MBAG received a single field report from outside the U.S. describing an instance in which a customer allegedly experienced the subject condition outlined above. Analysis was started immediately.

On January 10, 2022, MBAG received another report from a customer complaint regarding noises on the rear axle from outside the U.S. No third party damages or personal injuries were reported. Subsequently,

MBAG determined that, in the analyzed cases, the brake caliper housing bolts on the rear and front axles did not meet specifications. Further analysis determined that all affected brake caliper housings were part of a certain production batch at a supplier. Investigations were performed to check the potentially affected batch at the supplier and to identify potentially affected vehicles.

Additionally, internal testing was carried out to determine the severity of the impact on the safety of driving. On February 25, 2022, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall.

 


2 Affected Products

Vehicles

MAKEMODELYEAR
MERCEDES-BENZAMG CLA352020
MERCEDES-BENZGLA2502021

 


11 Associated Documents

Defect Notice 573 Report

RCLRPT-22V125-7590.PDF 214.744KB

 


Recall Acknowledgement

RCAK-22V125-8235.pdf 645.255KB

 


Remedy Instructions and TSB

RCRIT-22V125-3515.pdf 298.613KB

 


Recall 573 Report – March 11, 2022

RCLRPT-22V125-4916.PDF 214.747KB

 


Manufacturer Notices(to Dealers,etc – March 11, 2022

RCMN-22V125-3662.pdf 413.478KB

 


ISSUED Owner Notification Letter(Part 577)

RCONL-22V125-1770.pdf 299.97KB

 


Recall 573 Report – March 28, 2022

RCLRPT-22V125-2040.PDF 214.765KB

 


Recall Quarterly Report #1, 2022-1

RCLQRT-22V125-5137.PDF 211.139KB

 


Recall Quarterly Report #2, 2022-2

RCLQRT-22V125-4514.PDF 211.236KB

 


Recall Quarterly Report #3, 2022-3

RCLQRT-22V125-7857.PDF 211.319KB

 


Recall Quarterly Report #4, 2022-4

RCLQRT-22V125-7406.PDF 211.427KB

 


Latest Recalls Documents

 


 

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  • 【Simple and Convenient Design】Our caliper compression tool includes: sturdy tool, 2 super strong magnetic steel plates with safety slots and 2 protective hooks. The steel plates fit into place in seconds! The hooks ensure safe braking. The ratchet has a simple flip switch that changes direction instantly. It is very intuitive and anyone can quickly master this brake caliper press tool.
  • 【Strong and Durable】Confidence comes from quality. The body of this ratcheting brake caliper tool is corrosion-resistant, high-strength alloy steel that is not easily deformed and can withstand high pressure without bending or breaking. Comfortable, non-slip rubber grips and a clever lever design apply maximum force with minimum effort. Includes large flat plate (7.01”x2.36”) and small flat plate (4.53”x2.17”). Adjustable stretch range: 1.88”(min) to 3.03”(max) for most jobs.
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