Mercedes-Benz is conducting a voluntary safety of certain 2011 and 2012 vehicles over concerns that a faulty fuel filter flange may pose a fire risk.
A notice on the National Highway Traffic Safety Administration (NHTSA) site puts the number of vehicles potentially affected by the recall at 5,800. Affected vehicles were built from April 18, 2011 through July 12, 2011 and include the following models:
2011 Mercedes-Benz GLK350 4MaticEnlarge Photo
- 2011-2012 Mercedes-Benz GLK350
- 2011-2012 Mercedes-Benz GLK350 4Matic
- 2011-2012 Mercedes-Benz C300
- 2011-2012 Mercedes-Benz C300 4Matic
- 2011-2012 Mercedes-Benz CL550 4Matic
- 2011-2012 Mercedes-Benz CL63 AMG
- 2011-2012 Mercedes-Benz E350
- 2011-2012 Mercedes-Benz S400
- 2011-2012 Mercedes-Benz S550
- 2011-2012 Mercedes-Benz S550 4Matic
- 2011-2012 Mercedes-Benz S63 AMG
2012 Mercedes-Benz E Class
2012 Mercedes-Benz E ClassEnlarge Photo
Documentation from Mercedes-Benz (PDF) describes the problem as an irregularity in the structure of fuel filter flanges caused by issues during the injection molding process. As a result of the irregularity, the fuel filter flange may crack under high temperatures.
The NHTSA bulletin states: “If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present.”
According to Mercedes-Benz, “In most cases, fuel cannot leak through this structural irregularity in the flange.” The automaker goes on to say that in some cases of operating pressure along with high operating temperatures “could over time lead to the development of a crack in the flange, which may result in fuel leakage and/or loss of fuel system pressure and flow.”
2011 Mercedes-Benz S63 AMGEnlarge Photo
What Mercedes-Benz will do
Mercedes-Benz will notify owners and dealers will replace the defective fuel filter at no charge. The Mercedes-Benz safety recall is expected to begin in January 2013.
In the meantime, owners of 2011-2012 Mercedes-Benz vehicles involved in the recall with any questions or concerns may contact Mercedes-Benz at 1-800-367-6372.
Alternatively, owners of vehicles involved in the campaign may contact NHTSA’s Vehicle Safety Hotline at 1-888-327-4236 or go to https://www.safercar.gov. Reference the NHTSA campaign ID No. 12V557000.