Recalls: Mercedes-AMG C253 GLC 43 & 63 Coupe
Overview
Manufacturers, or importers, issue recalls for defects or faults which have the potential to cause injury. Generally, manufacturers will inform the original buyers if their vehicle is subject to a recall and of the steps required to remedy the defect or fault. Please note that the recalls below (if any) are for Australian-delivered vehicles only. Furthermore, the number of recalls should not be taken as an indication of a model’s reliability or its safety more generally.
Recalls: Mercedes-AMG C253 GLC 43 and 63 Coupe
2016-17 Mercedes-AMG C253 GLC Coupe: front seatbelt tensioner may not deploy
In October 2017, a recall was issued for Mercedes-AMG C253 GLC Coupes that were available for sale in Australia from 30 September 2016 to 30 January 2017. In these vehicles, the propellant mixing ratio for passenger seatbelt tensioner squibs may not satisfy design specifications. As a result, the tensioner may not deploy in the event of a collision and this would increase the risk of injury to the passenger. For the VINs of the recalled vehicles, please see PRA 2017/16342.
2016 Mercedes-AMG C253 GLC Coupe: driver’s seatbelt tensioner may not deploy
In October 2017, a recall was issued for Mercedes-AMG C253 GLC Coupes that were available for sale in Australia from 31 July 2016 to 30 November 2016. In these vehicles, the propellant mixing ratio for the front right (driver) seatbelt tensioner squibs may not meet specifications. As a result, the driver’s seatbelt tensioner may not deploy in the event of a collision and this could increase the risk of injury. For the VINs of the recalled vehicles, please see PRA 2017/16366.
2016-17 Mercedes-AMG C253 GLC Coupe: front seatbelt tensioner squibs
In February 2018, recall campaign RC2443 was issued for Mercedes-AMG C253 GLC Coupes that were available for sale in Australia from 1 August 2016 to 27 February 2017. In these vehicles, the propellant mix for the front seatbelt tensioner squibs may not have met specifications. The front seatbelt tensioners may therefore not deploy in the event of a collision and this increased the risk of injury to the occupants. For the VINs of the recalled vehicles, please see PRA 2018/16619.
2017 Mercedes-AMG C253 GLC Coupe: passenger airbag may not deploy
In May 2018, a recall (RC2473) was issued for Mercedes-AMG C253 GLC Coupes that were available for sale from 2 January 2017 to 3 April 2017. In these vehicles, the connector pins to the airbag control unit may have been manufactured incorrectly. Over time, this could increase resistance in the wiring and cause the passenger seat occupant classification system to be deactivated. This, in turn, would deactivate the passenger side frontal airbag and seat restraint function, thereby increasing the risk of injury in the event of a collision. For the VINs of the recalled Mercedes-AMG C253 GLC Coupes, please see PRA 2018/16798.
2018 Mercedes-AMG C253 GLC Coupe: airbag housing could eject metal parts
In September 2018, recall campaign RC2520 was issued for Mercedes-AMG C253 GLC Coupes that were available for sale in Australia from 1 March 2018 to 30 April 2018. In these vehicles, the airbag gas generator housing could eject metal parts if the airbags were deployed and these posed an injury risk to occupants of the vehicle. Despite its similarities with the Takata airbag recalls, this recall was not related to Takata airbags. For the VINs of the recalled vehicles, please see PRA 2018/17042.
2017-18 Mercedes-AMG C253 GLC 43 Coupe: passenger airbag may not deploy correctly
In December 2018, recall campaign RC2599 was issued for Mercedes-AMG C253 GLC 43 Coupes that were available for sale in Australia from 1 September 2017 to 31 December 2018. In these vehicles, software for the ‘Audio 20’ control unit could affect the occupant detection function for the front passenger seat. As a result, the airbag may not deploy correctly in the event of a collision and this increased the risk of injury for the front seat passenger. For the VINs of the recalled vehicles, please see PRA 2018/17232.
2018 Mercedes-AMG C253 GLC Coupe: power steering may be disabled
In May 2019, recall campaign RC2656 was issued for Mercedes-AMG C253 GLC Coupevehicles that were available for sale from 3 September 2018 to 30 September 2018. In these vehicles, a sensor for the electric power steering may not have conformed to specifications. If the sensor failed, power steering assistance may be disabled and this increased the risk of a collision. For the VINs of the recalled vehicles, please see PRA 2019/17541.
2019 Mercedes-AMG C253 GLC Coupe: airbag may detach from base plate
In October 2019, recall campaign RC2727 was issued for Mercedes-AMG C253 GLC Coupe vehicles that were available for sale in Australia from 1 April 2019 to 30 September 2019. In these vehicles, the four lock nuts for fastening the airbag may have been installed incorrectly. The airbag may therefore detach from the base plate and enter the vehicle interior at high speed. In the event of a collision, this increased the risk of injury to vehicle occupants. For the VINs of the recalled vehicles, please see PRA 2019/17890.
2018-19 Mercedes-AMG C253 GLC Coupe: front seatbelt buckle housings
In July 2020, recall campaign RC27650 was issued for Mercedes-AMG C253 GLC Coupes that were available for sale in Australia from 1 August 2018 to 29 March 2019. In these vehicles, the front seatbelt buckle housings may not have been correctly manufactured. As a result, a correctly-fastened seatbelt may be detected as not fastened – this would cause the seatbelt warning light to remain illuminated and a warning tone would sound when the vehicle was being driven. In the event of a collision, neither of the vehicle’s seatbelt tensioning systems would be activated – this increased the risk of injury to occupants in the event of a collision. For the VINs of the recalled vehicles, please see PRA 2020/18344.
2020 Mercedes-AMG C253 GLC Coupe: backrest lock may fail
In August 2020, recall campaign RC2797 was issued for Mercedes-AMG C253 GLC Coupes that were available for sale in Australia from 1 March 2020 to 30 June 2020. If the cargo area was loaded and a collision occurred, the cargo could strike the backrest of the left rear seat, causing the backrest lock to fail. If this occurred, the risk of injury to vehicle occupants – particularly in the left rear seat – would be increased. For the VINs of the recalled vehicles, please see PRA 2020/18488.
2018-20 Mercedes-AMG C253 GLC 63: ESP programming
In October 2020, recall campaign RC2812 was issued for Mercedes-AMG C253 GLC 63 Coupes that were available for sale in Australia from 1 August 2018 to 16 August 2020. In these vehicles, software for the Electronic Stability Program (ESP) control unit may have been incorrectly programmed for the types of brakes in the vehicle. This could lead to an inappropriate ESP intervention in some driving situations, thereby increasing the risk of a collision and injuries to vehicle occupants and other road users. For the VINs of the recalled vehicles, please see PRA 2020/18566.
Problems and faults: Mercedes-AMG C253 GLC 43 & 63 Coupe
Overview
This section identifies potential problems, causes and fixes based on the experiences of owners and repairers, online sources and technical service bulletins. This information is provided solely for reference purposes and AustralianCar.Reviews recommends that only properly qualified persons carry out repairs or modifications. Furthermore, the number of items below should not be taken as an indicator of a model’s reliability or the frequency with which they may occur.
To report a problem or fault to the AustralianCar.Reviews team, please use the Contact Us form. Note that AustralianCar.Reviews does not offer advice on automotive problems or disputes; such enquiries will not receive a reply. For vehicles purchased from dealers after 1 January 2011, please see our Australian Consumer Law fact sheet.
Mercedes-AMG C253 GLC 43 Coupe: front-end judder, tyre skip and thump noises
Mercedes-AMG C253 GLC 43 Coupe owners have reported reporting a juddering sensation (also termed ‘crabbing’ or ‘tyre skip’) from the front end of the vehicle and thumping noises when cornering at low-speeds with a high degree of steering lock applied.
In response to complaints, Mercedes-Benz UK have issued statements that attribute this ‘characteristic’ to ‘flexibility within the tyre sidewall, the grip between the front tyres and the type of road surface being driven over.’ Furthermore, ‘[w]inter tyres and all-season tyres on 18- or 19-inch wheels improve this characteristic and we would always recommend their use in temperatures which fall below approximately +7 degrees Celsius. The use of 18-inch wheels with summer tyres also improves the issue.’ While Mercedes-Benz claims that these symptoms are only ‘a comfort issue, and does not affect the safety or performance of the vehicle’, the compromised traction is potentially hazardous. Owners have also experienced rapid tyre wear on the outer edges of the front wheels.
Mercedes-Benz have claimed that its ‘technical experts’ are investigating ways to minimise this characteristic, however, the root cause appears to be steering geometry that does not provide appropriate degrees of relative lock for the inner and outer front wheels when cornering.
