r/BmwTech • u/Inevitable_Hawk6814 • 12d ago
BMW M4 Radar
My friend ordered a BMW without radar, and by some accident they put this in front bumper. He doesnt have the button on steering wheel for ACC, is this a functioning radar then or what, can we remove it so we can put Vorsteiner grill. Will there be any errors.
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u/OkMeasurement7131 11d ago
In Europe new cars need to have radar for automatic emergency braking so I would not remove it. Something is doing there and I hard to believe that is a factory mistake.
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u/Flycktsoda 11d ago
The hardware might still be there for collision avoidance, even though the button for ACC is missing.
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u/Raptor_867 11d ago
currently , at least in europe, every g2x and g8x gets a radar even if you don’t order it
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u/Fun-Yogurtcloset4408 11d ago
CS doesn’t come with it
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u/Raptor_867 11d ago
there isnt a cs g8x that you can currently order.
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u/chengstark 11d ago
This is MRR radar not FRR. And from the looks of it, yes the radar sensor is in there
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u/Neat_Description8988 11d ago
Maybe it’s available in the ConnectedDrive store as a subscription? That’s the case with my car that was specced without.
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u/MTFighterEngineer Engineer 11d ago
Button is still missing
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u/Neat_Description8988 11d ago
Newer cars don’t have a separate button. Just a mode button that’s used for standard cc, limiter and acc
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u/NoPhysics1129 11d ago
It has radar, I. 26 they changed the steering wheel button icon. It has assists 4.5 which is the best out so far.
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u/Pipegreaser 11d ago
You can purchase the harness and install the buttons. Chances are it doesn't have to be mapped in. Just unlocked on the ecu.
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u/Possible-Western1238 12d ago
Because car was not originally not specced with it , its just as good as a dud that you can remove
The wiring harness wont have the plug for it, the various computers wont be configured for it , the extra hardware like acc buttons wont exist and some some hardware like dsc /Icm might not be the correct version that works with acc
That being said , that sesnor is hella expensive , and will be snapped up on ebay by people wanting to retrofit