• Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • The aluminum roof panel of the 2015 C-Class, affixed to a cutaway portion of the bodyshell.
  • Image Credit: AOL
  • There's a gap between the roof panel and the steel body --
  • Image Credit: AOL
  • because in the Tuscaloosa, Alabama plant, the bodyshell is rotated 360 degrees during painting. The roof panel is attached to the body with screws and 10-millimeter spacers, so the steel and aluminum , which expand at different rates, can cure together after painting. Once dried, the roof is affixed to the body with adhesive. Other factories that don't rotate the body use tabs on the roof panel to secure it to the body.
  • Image Credit: AOL
  • An overhead shot of the multi-part steel construction of the rear axle transverse beam in the current C-Class, upper left, and the single aluminum piece used in the 2015 C-Class. On the lower right is a section of bodywork with different colors highlighting the various metals used in construction.
  • Image Credit: AOL
  • The pieces of the steel rear axle transverse beam.
  • Image Credit: AOL
  • The single-piece aluminum rear axle transverse beam, six pounds lighter than its steel counterpart.
  • Image Credit: AOL
  • The steel construction of the front damper strut assembly in the current C-Class --
  • Image Credit: AOL
  • The single-piece aluminum strut tower assembly in the 2015 C-Class.
  • Image Credit: AOL
  • Impact fasteners are used to connect some aluminum components to the bodyshell were there is enough metal to do so.
  • Image Credit: AOL
  • This is part of the rear wheel-well assembly. The impact fasteners are the row of red circles in the lower center of th photo.
  • Image Credit: AOL
  • Image Credit: AOL
  • The other side of the impact fasteners.
  • Image Credit: AOL
  • A panel showing the placement of cameras and sensors around the car that enable Intelligent Drive.
  • Image Credit: AOL
  • A panel showing the global crash tests the 2015 C-Class has been engineered to pass. Yes, the small-offset frontal impact test is pictured, but Mercedes engineers told us that the full-frontal test is actually the hardest to engineer the car around.
  • Image Credit: AOL
  • Image Credit: AOL
  • The Intelligent Drive simulator using an S-Class placed in front of six screens.
  • Image Credit: AOL
  • Image Credit: AOL
  • Image Credit: AOL
  • An A-Class finish being tested on a rolling road under different temperature conditions.
  • Image Credit: AOL
  • Image Credit: AOL
  • Image Credit: AOL
  • An S-Class also being temperature tested on another rolling road.
  • Image Credit: AOL
Mercedes-Benz is recalling over 33,000 vehicles in the US in separate actions affecting two of its model lines.

The larger campaign covers 30,141 examples of the 2015 CLS400 and CLS400 4Matic; 2012-2015 CLS550 and CLS550 4Matic; 2012-2014 CLS63 AMG and 2014-2015 CLS63P AMG. On these vehicles, the LED taillights do not sufficiently illuminate around the sides, and therefore they run afoul of the Federal Motor Vehicle Safety Standard. According to documents posted by the National Highway Traffic Safety Administration (as a PDF, here), "this is due to a software coding issue which leads to the non-activation of a certain LED in both taillamp units." An update of the programming by the dealer fixes the problem.

The other recall covers 3,039 units of the 2015 C300 4Matic and C400 4Matic for two possible problems with the fuel delivery module of the fuel tank. First, the locking plate for the part might loosen on some of these vehicles, and that can cause a fuel leak, which is obviously dangerous. Also, the electric wires going into the component might be pinched, which can lead to failure of the fuel pump. Dealers will inspect the models for both issues and will repair any faults they find.

Mercedes did not tell NHTSA when owners would receive notification about either of these campaigns when the company submitted the documentation to the agency on March 10. Autoblog reached out to company spokesperson Christian Bokich via email for more information. "We currently expect to be in touch with customers by late March. Customers may continue to drive their vehicles until the recall is performed," he said.

Related Video:

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RECALL Subject : Rear Side Marker Illumination/FMVSS 108

Report Receipt Date: MAR 10, 2015
NHTSA Campaign Number: 15V137000
Component(s): EXTERIOR LIGHTING
Potential Number of Units Affected: 30,141
All Products Associated with this Recall
Vehicle Make Model Model Year(s)
MERCEDES BENZ CLS400 2015
MERCEDES BENZ CLS550 2012-2015
MERCEDES BENZ CLS63 2012-2015
Details
Manufacturer: Mercedes-Benz USA, LLC.

SUMMARY:
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 CLS 400 and CLS 400 4matic, 2012-2015 CLS 550 and CLS 550 4matic, 2012-2013 CLS 63, 2014 CLS 63, and 2014-2015 CLS 63P. The affected vehicles have LED tail lights that may not light on the sides, reducing the rear side visibility of the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, Reflective Devices, and Associated Equipment."

CONSEQUENCE:
Reduced rear side marker illumination may prevent other drivers from seeing the vehicle, increasing the risk of a crash.

REMEDY:
MBUSA will notify owners, and dealers will update the lighting controller software, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2015030005.

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.safercar.gov.


RECALL Subject : Improperly Attached Fuel Delivery Module and Wires

Report Receipt Date: MAR 10, 2015
NHTSA Campaign Number: 15V138000
Component(s): FUEL SYSTEM, GASOLINE
Potential Number of Units Affected: 3,039
All Products Associated with this Recall
Vehicle Make Model Model Year(s)
MERCEDES BENZ C300 2015
MERCEDES BENZ C400 2015
Details
Manufacturer: Mercedes-Benz USA, LLC.

SUMMARY:
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 C300 4matic and C400 4matic vehicles manufactured April 7, 2014, to July 25, 2014. In the affected vehicles, the fuel delivery module may be improperly secured to the fuel tank. Secondly, electrical wires that connect to the fuel delivery module might have been pinched between the flange of the fuel delivery module and the tank.

CONSEQUENCE:
If the locking plate is not properly secured to the fuel delivery module it may become loose, and leak fuel, increasing the risk of a fire. If the electrical wires are pinched, the fuel pump may stop working, resulting in a stall, thereby increasing the risk of a crash.

REMEDY:
MBUSA will notify owners, and dealers will inspect the vehicles for improperly secured locking plates and pinched wires, correcting the vehicles as necessary, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2015030004.

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.safercar.gov.

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