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Super Moderator
MY08 cabrio MY09 Brabus MY21 Bolt
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So your MY16 451 ICE (not MY17 453 ED) has an annoying hum - upon starting, in gear/neutral, while driving, at speed from what direction/area?

Can be very hard to diagnose over the Internet? Note, these two vehicles/model years do not compare well and are very much apples to oranges . . .

Really need more information or, it should be under warranty if you are lucky enough to have a smart Center near.
 

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Super Moderator
MY08 cabrio MY09 Brabus MY21 Bolt
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8,174 Posts
The humming noise is very annoying probably around 30-35mph and beyond that speed it is not so awkward, l mean l can live with it. I was wondering has anyone’s got issues with this Continental ContiEco Contact 185/50 R16 tyres and only done 2100 miles. l have all along suspected that is the cause of the humming noise .. but again it couldn’t be so loud.
In a safe area, at 35-40ish MPH (the Drone Zone) slip the tranny into neutral (engine idle) and coast - still got drone, probably the tires. :shrug:

"so loud" - everything is loud when you are driving a tiny plastic bodied car with no door insulation surrounded by rolling tires . . .
 

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Super Moderator
MY08 cabrio MY09 Brabus MY21 Bolt
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8,174 Posts
And as you have "tyres," where are you located?

I have an ICE 451 cabrio and an ED 451 coupe - the noise differences between the two (with top up) are dramatically different!

Note that the ED TIRES may also be more quiet as the OEM are often low rolling resistance?

One review from Europe of the Conti tyres said - "They seem quite soft so they are quite comfortable but their major drawback is NOISE. You would swear that the car was fitted with solid rubber as, even at low speeds, you can hear the rubber blocks flicking on the road surface."
 
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