2003 Mercedes-benz SL-Class Complaints

  • Electrical System 11/14/2023

    To who may this concerned, I have a 2003 Mercedes SL500 and recently found my battery control module caught on fire and burnt a section of my car. I have tried reaching out to Mercedes directly first and they said the car is 20 years ago and it could have not be a manufactured defect. Please I need help this problem could’ve burn down my house or while I was driving. Mercedes requested I send them a letter in writing if I have to get the car inspected. Please setup and date so I can write them this is 100% liability on their brand as there is no schedule maintenance for a battery control module.

  • Electrical System 11/27/2023

    I am concerned with the battery control module. I have noticed there has been a lot of incidents out there where the battery control module in the SL 500s have caught fire! I am concerned for my safety due to this defect!

  • Electrical System 03/15/2023

    The battery control module (known as the BCM or BNS) failed, triggering a fire. The incident occurred while the vehicle was parked in a garage and had not been operated for several weeks. The fire consumed the module, insulation on wiring connected to and close to the module, part of the trunk lining material, and burned through a total of five hydraulic lines (retractable roof hydraulics). It appears that the trunk seal limited air to the point that the fire was self extinguished. This is the only thing that saved the attached garage and house. The vehicle valued at $30,000 was determined to be a total loss due to the extensive repairs required to restore it to an operating condition. I have since joined a Facebook group "Mercedes BNS/BCM Fires" that has nearly 1000 members and found that this is a common issue with the Mercedes R230 model and fires have occurred dozens if not hundreds of times. We have determined that the module has undergone numerous changes, but there is no co...

  • Suspension 08/01/2023

    The contact owns a 2003 Mercedes-Benz SL500. The contact stated while driving at various speeds, the ABC warning light illuminated. Additionally, the message "Drive Carefully" was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed that the ABC tandem pump, struts, and hoses needed to be replaced. The dealer was notified of the failure and informed the contact that they did not provide service for older vehicles. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 88,000.

  • Electrical System 04/28/2023

    It appears the BCM (Battery Control Module) caught fire and burned a significant portion of the trunk and associated wiring.

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