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Mercedes recalling 33k C-Class and CLS-Class models in separate campaigns

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: 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.

Next Mercedes S-Class stretching into this 600 Pullman limo

To the concern of nobody in particular, Mercedes-Benz will not be re-upping its Maybach line of ultra-luxury limousines. No, instead the German automaker will be stretching its already roomy S-Class, to make this upcoming 600 Pullman version of the decked-out beast.
The car in our new gallery of spy shots is sporting beefy B-pillars and a massive set of rear doors that should allow perfectly graceful ingress and egress from what is likely to be a palatial rear space. (In one photo we can even see a long-wheelbase S-Class in line with the new Pullman, handily exhibiting the size of the new variant.) The exterior modifications are otherwise obscured, though we can guess at revised front and rear fascia and lighting elements, based on both end being heavily taped for these test runs.
It's a good bet that the Pullman will make use of M-B's twin-turbocharged V12 engine, though sources indicate that a hybrid version might eventually be in the offing, as well.

Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.