F20N Roof spoiler install

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Tommy
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F20N Roof spoiler install

Post by Tommy »

Hi, i just got this roof spoiler for my F20N, and i notice that there is some threrad inserts at the underside. How do you install it, do you drill holes in the top of the rear hatch, and put bolts thru in addition to glue, or only glue? On previous parts, i always only used glue, but i have never seen these thread insert before. Maby they are just put there, so that the painter can put bolts in, to hang it when painting.

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2017 BMW F20N 118i
2007 Lotus Exige S
2006 VW caddy tdi

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marco_polo
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Re: F20N Roof spoiler install

Post by marco_polo »

I would use adhesive only.

With such a large surface area and so little load, there is no point in drilling holes in your car and adding extra fasteners.
Silver F21 M135i - ManBox - HK - Adaptive + Eibach Pro's - BBS CH-R's - BMWP Drexler LSD - M4 LCA's

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DaveM135i
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Re: F20N Roof spoiler install

Post by DaveM135i »

I've a carbon fiber one on my m135i with 3M adhesive tape and it's held perfectly at enthusiastic motorway speeds. I'd avoid drilling if I could, moisture ingress and future selling are things to be avoided if possible.

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Tommy
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Re: F20N Roof spoiler install

Post by Tommy »

Thanks for the reply, i will go "as usual" with only glue.
2017 BMW F20N 118i
2007 Lotus Exige S
2006 VW caddy tdi

DaveM135i
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Re: F20N Roof spoiler install

Post by DaveM135i »

This is how I mounted mine. Make sure you use genuine 3M tape, it's thick foam tape.Image

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