Report: BMW M-Tuned 5 Series Diesel Could Pack a 516 lb-ft Punch

If you’re a fan of tire-shredding torque and Karl Diesel, perk up your ears: an attendant at a Dutch BMW dealer presentation has leaked some info from the meeting, confirming that BMW will make a hopped-up diesel 5 Series and that it’ll make quite a lot of power.

The car will apparently be called the M550dX. To make sense of that alphabet soup, it means that the 5 Series will have an M-tuned diesel engine and BMW’s xDrive all-wheel drive system. We’ve been told that the engine will be a variant of the 3.0-liter twin-turbocharged diesel engine used in the 530d and 535d, but will get three--yes, three--turbochargers. Final power output is allegedly close to 381 horsepower and at least 516 pound-feet of torque.

Take a closer look at the shots and you’ll find that the M550dX is filed under F10 and F11 model designations. Roughly translated from BMW-speak, it means that the torque-tastic 5-Series will be available in both sedan and wagon versions.

Production of the M550dX will begin in March 2012. Although BMW hasn’t confirmed if any version of the car (coupe or wagon) will come to our shores, it’s a safe bet that the wagon is a definite no, given the entire 5 Series range was replaced by the 5 Series GranTurismo in North America. That said, those seeking an uber-diesel with extra cargo space may not be out of luck: the M550dX’s engine may be offered in the likes of the X5 and X6 crossovers.

In the meantime, what do you think: does an M-tuned all-wheel-drive diesel signal another blasphemous move for BMW, or are you loving the thought of tire-shredding torque and respectable fuel economy? Let us know in the comments below.

Sources: Bimmerpost, Driving-Fun

Jon Erdner
I have a 530Xi 6-speed and have been trying to replace it with another BMW 5-Series X-drive with a 6-speed...or a diesel automatic X-drive 5-Series. Will I be able to buy one in the U.S. soon?
You're not waiting. Americans don't buy wagons, they don't by diesels. Never have, never will. Sounds like a good business case to avoid this market. I fail to see the point of a high power diesel that will use as much fuel as a gas engine. It's impossible to make 380hp/500 ft torque and be economical, unless you break some laws of thermodynamics.
I am seeing in the USA a return to sporting wagons by several manufacturers who have the testicular fortitude to offer them. The Cadillac CTS-V wagon is a wonderful example, and is available with a manual transmission. The Jetta SportWagen TDI with the three-pedal 6-speed may not be your idea of a fun, practical drive...until you experience it for yourself. The 530d and 535d Touring models are indeed special. But don't just take my word, see if you can't find the DVD of Clarkson driving the daylights out of a 535d Touring as he claims it to be the best car he drove in 2011. BMW's reluctance to offer the F11 in the States continues to irritate the Touring faithful. BMW saying that the 5er GT and the X5/X6 are replacements in the USA for the F11 because they "can't make a business case" seems like a weak argument. Dear BMW, we are waiting!
I'm all for diesels but I admit I'm not a power junkie. I like good performance but I also look at the price-value ratio. BMW has a 260 and 310 HP version of this car in Europe the torque difference is about 60. The difference in 0-60 is 0.5 seconds. But the 310 HP version costs about 9 grand more. An extra 70 HP would probably decrease 0-60 times by another 0.5 seconds but could cost as much as 70-75 grand. Considering the 335d goes for about 50 grand with 265 HP. Why not just buy a 550i. It has 450 torques and if someone can spend that much on a car I doubt fuel efficiency is high on their list of priorities.
Captain Oblivious Obvious
I'm amongst those desirous of BMW wagons (in all forms) as an alternative to SUVs – why Americans are so fond of SUVs can only be explained on two counts: 1) Boomers who 'can't get over' the 'trauma' of wagons from their childhood, and 2) A hope for the return of covered wagons (of the drawn-by-horses variety). If BMW actually can market automobiles (and I believe it can) it ought be able to 'reinvent' the wagon as a high-performance machine for those with sports equipment, etc – in other words, a shooting brake with a couple of extra doors. The über-Diesel would be a Good Thing, as would an M-Wagon.
I guess Mercedes is to slow for BMW, in terms of product. I say this because MB is the first company I read of with exciting tri-turbo diesels producing amazing numbers but BMW is putting one into production first and I can't wait. Hope it comes to the US.
Chris Claridge my X5 diesel...but ready for an all wheel drive sedan with big diesel torque !!

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