DIY: Rear Spoiler Adjustment - Porsche 718 Forum
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post #1 of 8 Old 05-30-2019, 07:57 AM Thread Starter
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DIY: Rear Spoiler Adjustment

The rear spoiler adjustment is a fairly straight forward procedure.
On my car, the gap to the rear hatch and side to side position were OK.
However, the height of the spoiler ends where they meet the rear fenders were way off.

This is the second run at this DIY, unfortunately this site didn’t seem to like embedded pictures in the first attempt.
To avoid a bunch of thumbnail pics all together I’ve broken it up in a series of posts.

Firstly, I would rate this a 4 out of 10 in terms of difficulty but it does take a little patience.
It took me a couple of attempts before I was satisfied with the result.

I’ll lay this out step by step.
It’s important to do things in the right sequence.

Tools Needed
  • T-20 Torx bit for screws removal.
  • Small ratchet or alternatively a Torx bit driver with flex coupling.
  • 13mm socket
  • 10mm socket – deep socket is best
  • Fine point marker (or similar)
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Last edited by InTgr8r; 05-30-2019 at 09:25 AM.
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post #2 of 8 Old 05-30-2019, 08:01 AM Thread Starter
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Step 1

Step 1 Measure the adjustment needed
  • Check gap to hatch/boot
  • Check gap at fenders.
    (on mine there was more gap at the hatch than fenders)
  • Check side to side alignment.
  • Check vertical alignment at the ends where they meet the fenders.
    Look straight on from the sides of the car and note how much it needs to change and in which direction.
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post #3 of 8 Old 05-30-2019, 08:04 AM Thread Starter
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Step 2

Step 2 - Remove painted spoiler top
  • Open hatch/boot
  • Raise spoiler (from center console)
  • There are 6 screws to be removed along the leading edge (T-20)
  • With screws removed, slide painted spoiler rearwards.
    It moves very freely.
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post #4 of 8 Old 05-30-2019, 08:07 AM Thread Starter
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Step 3

Step 3 Making adjustments
With the top cover removed, you will see two 13mm nuts and flat washers (flat washer is captured with nut)
These 2 nuts are fastening the black plastic lower section in place.
They are also used to make adjustments for side to side and front to rear.

Please follow the sequence below in order.
  1. Take a fine point marker pen and trace around the edge of the large flat washer.
    This is important to establish the current horizontal position.

  2. When both washer positions are marked, the two 13mm nuts can be removed.
    The lower section will be completely free, so ensure that it does not fall off.
    It does, however, sit in place fairly well.

  3. Vertical Adjustment
    With the 13mm nuts removed, you will see a smaller 10mm nut below each.
    These 10mm nuts controls the height adjustment for the spoiler.
    Using a 10mm socket you will turn the nut clockwise or counter clockwise to make the adjustment. (both sides)

    To get an idea for how much you are moving the spoiler look at the spoiler support on the underside.
    Check the starting point and then measure how much it needs to move.

    After you make the adjustments;
    - put the 13mm nuts back on finger tight (use your maker tracing to position)
    - Slide the spoiler top back on (you can put a couple of the T20 screws back finger tight)
    - Then lower the spoiler. (hold button until LED goes off)
    - check your vertical position again to see what additional adjustment is required.
    - Once satisfied with the vertical, you can proceed to horizontal adjustments.
4. Horizontal Adjustment
- make these adjustments with the spoiler in the down position.
This way you will not move it too close to the front and have interference with the hatch/boot and fenders. (no scratched paint please!!)
- using your trace markings around the flat washers as a guide you can make the appropriate changes.

There is a large amount of adjustment possible, as the opening is quite large.


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Last edited by InTgr8r; 05-30-2019 at 09:31 AM.
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post #5 of 8 Old 05-30-2019, 08:08 AM Thread Starter
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That's about it.

You may have to fiddle with it a few times until you're satisfied with it.
At that point snug the 13mm down (do not over tighten)
Then reinstall the spoiler top with the 6 screws.

For those of you wanting torque numbers; sorry but I don't have them.

Enjoy!
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Last edited by InTgr8r; 05-30-2019 at 08:10 AM.
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post #6 of 8 Old 05-30-2019, 12:51 PM
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Thumbs up

Very nicely done. Thank you!
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post #7 of 8 Old 05-30-2019, 12:55 PM Thread Starter
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Quote:
Originally Posted by trusted View Post
Very nicely done. Thank you!
Thank you for pointing me in the right direction to begin with.
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post #8 of 8 Old 05-30-2019, 06:26 PM
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STICKIED! Nice work, OP!
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-- Life is a journey made more exciting with a fast car. --
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