Engineering Explained: M139 Engine - Mercedes GLA Forum
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post #1 of 7 Old 08-17-2019, 11:44 AM Thread Starter
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Engineering Explained: M139 Engine

How Mercedes Made The Most Powerful 4-Cylinder Engine In The World


Video courtesy of Super Moderator Wayne

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post #2 of 7 Old 08-17-2019, 04:50 PM
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Wow, just wow. I had heard it would be near 420hp and this is super cool because it shows you exactly what changes they made. The port injectors added to DI was cool to see, and he noted boost is up to a bonkers 30.5 psi. 26.1 was bonkers. I wonder if ANYTHING factory is out there running anything close to this boost?

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post #3 of 7 Old 08-17-2019, 09:19 PM
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To be accurate the video was first sent to me by GLAOwner.
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post #4 of 7 Old 08-19-2019, 12:39 PM
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Engineering Explained: M139 Engine

Great summary of the M139 engine and its differences from the M133.

Last edited by turbolink; 08-19-2019 at 02:15 PM. Reason: Removed duplicate video link
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post #5 of 7 Old 08-21-2019, 08:38 AM
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Dammit!!! Now I want a new car again!

Thanks for sharing!
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To hesitate is a waste of time.
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post #6 of 7 Old 08-21-2019, 02:08 PM
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You and me both! But hey we've got some pretty kick ass cars already

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Dammit!!! Now I want a new car again!

Thanks for sharing!

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post #7 of 7 Old 08-21-2019, 03:50 PM
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It's all a matter of perspective but a battle to maintain that perspective!!!
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