Mercedes-Benz USA Mercedes-Benz E55 AMG.The National Highway Traffic Safety Administration says it is upgrading an investigation into fuel leaks on about 250,000 Mercedes-Benz sedans, according to a report posted on the agency Web site. The investigation covers 2003-8 E-Class models.
The agency began investigating in January 2012 and says it has gathered about 350 complaints from owners about fuel leaking or a strong odor of gasoline, particularly after refueling. That warrants intensifying the investigation, the agency said.
The reports cover the E55 AMG high-performance sedan and other E-Class models.
In other actions, General Motors is recalling about 26,500 of its 2013 Cadillac SRX and Buick LaCrosse models to reprogram the automatic transmission, according to a report posted Wednesday on the N.H.T.S.A. Web site.
The automaker said the problem with the LaCrosse and SRX involved its Driver Shift Control. The control allows the driver to manually select a gear on the automatic transmission, typically to help slow the vehicle on a long descent.
However, the transmission could shift itself back into fully automatic mode, the automaker said. That would cause a loss of the braking effect. A software change should fix the problem.
In a second action, General Motors told the safety agency it was recalling 48 of its natural-gas powered 2011 Chevrolet Express vans primarily used by fleets because the gas could be released into the passenger compartment. The company blamed “a misbuilt pressure relief vent pipe.”
If the device activates, G.M. told the agency, compressed natural gas could be channeled into the passenger compartment. “This could cause an explosion or fire if an ignition source were present,” the automaker said.
Both problems were discovered by General Motors employees. Alan Adler, a spokesman for the automaker, said in an e-mail that the company wasn’t aware of any accidents or injuries.
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