BMW 340i launching this summer with 320 horsepower

3-Series | January 21st, 2015 by 22
2015 bmw 3 series facelift1 750x500

This summer, BMW will replace the current F30 335i model with a new 340i sedan featuring the new B58 3.0 liter six-cylinder engine. The new …

This summer, BMW will replace the current F30 335i model with a new 340i sedan featuring the new B58 3.0 liter six-cylinder engine. The new powerplant replaces the award winning N55 TwinPower and now produces 320 horsepower and 320 lb-ft (450 Nm) of torque.

The engine will be mated to the same 8-speed transmission from ZF (8HP45). BMW puts the ZF 8HP70 (700Nm/516lb-ft) in all of the V8-powered BMWs, but most likely due to costs, it retains the previous generation 8-speed.

The 2016 BMW 340i will go in production in July 2015 with first units expected to reach the dealers just a few weeks later. Next year with the unveil of the 4 Series facelift, the 435i model will also be changed to the 440i moniker featuring the same B58 engine.

2015 bmw 3 series facelift1 750x450

For this generation, BMW has no plans to offer an M340i M Performance model, but that might change in the next generation launching in 2019.

Rumors around a possible three-cylinder 3 Series have been circulating on the interwebs for quite some time now, but even though BMW originally planned for it, the decision was made to keep the four-cylinder engine as the entry-level 3 Series – at least for the current generation.

All versions of the BMW 3 Series facelift will also benefit from a new suspension tuning, which will provide even more dynamic driving without compromising comfort. Minor updates are to be expected with optional equipment and control systems, like the full-LED headlights being optional.

22 responses to “BMW 340i launching this summer with 320 horsepower”

  1. mckillio says:

    320hp seems a little low, especially for a new engine, and compared to the competition, the torque and hp are both lower than the C-class 400 and S4 though the current 335i has much better mpg than both. And while what really matters is 0-30, 0-60 and highway passing speeds (the 335 is faster than the Mercedes but slower than the S4 in regards to 0-60) hp numbers speak to the average customer more.

    I’m really looking forward to the new performance and mpg numbers.

    • disqus_um7Ce9uY38 says:

      dude all you need is JB4.. :)

    • Horatiu B. says:

      It is, but I’m sure that’s the perfect balance probably with MPG also.

    • Sunny says:

      I would expect high output versions of the B58 to follow, just like the had the 322hp version of the N55 up from 300hp.

    • Sunny says:

      I would expect high output versions of the B58 to follow, just like the had the 322hp version of the N55 up from 300hp.

    • Billy The Hillbilly says:

      I wouldn’t bother with raw performance figures as the performance curve is far more important matter. Along with the fuel consumption, I can only laugh when I hear any powerful Audi owner droning on about how much of a fuel his car takes n’ still gets ass-kicked by cars that shouldn’t have a chance :-). BMW engines r in a league of its own though.

      • Horatiu B. says:

        Audis are still a bit too heavy. Hence the issues, or some issues

        • Billy The Hillbilly says:

          Yea, I know, man. I actually have a pretty good history w/ Audi lovers about their Vorsprung durch Technik cars, there always was a lot of rivality coming from the Audi side. It was always a bit too hard a discussion unless you could get into similar cars and compare them on a road. But then the discussion would usually go “Well, yea, but I have a Quattro, yo know? You are just screwed when the winter comes”, so it could go on for another hour :-)

    • Sebastian Z says:

      Correction: Current S4 is 0.2s slower than current 335xi 0-60….

    • PJ says:

      Those are really conservative numbers, they always do that possibly for insurance purposes, trust me actual HP is way more than that.

  2. Paul Brun says:

    you shouldn’t have to worry about HP figures being to low. Conforti will come out with a tune that will allow you to up the numbers easily.

  3. […] to the guys from BMW Blog, the model in question will be packing in a new B58 3.0 liter engine, which should be producing a […]

  4. Gareth Williams says:

    Any chance of a manual 440i in the UK, BMW? I suspect nicht.

  5. Pearl77 says:

    BMW always underrates their engines. The N20 four banger rated at 240hp consistently blew the doors off the Caddy ATS turbo four, even though the latter was rated nearly 40hp more. Same for the N55. While BMW is going to these engines mostly to created a consistent “architecture” (500cc per cylinder, same pistons across the line, etc), we can expect more hp and better fuel economy with the B58.

  6. Sebastian Z says:

    Correction: Current S4 is 0.2s slower than current 335xi 0-60.

  7. Chris says:

    Yeah I am a little disappointed with the power output myself. Basically we’re talking mid 2015 to mid 2018 on car badged 340i but only has about 16hp more than the current 335i? IMO, that just isn’t good enough. Heck my old 335i N54 started out life in 2006 with 306, that was 9 years ago. Back then, 306 was good, now it’s nowhere near good enough. For a 340i, I would have expected about 15% increase in power, especially considering the 335i engine has been around for ages now. So, around 350hp would have more like it I think.

    • Andy says:

      BMW underrates their HP and TrQ figures. They put out more than they say. Nothing compares to BMW motor. They scream and are fierce. Even though it is not a huge bump. Spend $600 for a tune and your at 400’s each way with AWD. You’d be outty!

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