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997 Current model of the 911 C2, C2S, C4, C4S, GTS, Targa and Cabriolet Discussion.
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DIY: 997 OEM Trunk Mounted Collapsible Spare Tire C4S

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Old 05-01-2011, 04:20 PM
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DIY: 997 OEM Trunk Mounted Collapsible Spare Tire C4S

As commented in several other thread unbelievably Porsche didn’t offer 997 owners the option of a trunk mounted spare. My car is a 4 season daily driver and personally I would prefer to change a flat tire myself and be back on the road then to wait for a service truck to arrive. So I knew as soon as I bought my car this would be one of the first projects I’d complete.

Several measurements quickly confirmed mounting a spare tire in the floor of the trunk was not possible due to the AWD system so this was the method I settled on. Hopefully this write-up will help someone else looking for a similar option.

Configuration
'06 997 C4S with Nav & 6 Disc CD Changer
Note: CD changer was discarded in this install.
Note: This method will work for C2, C2S & C4 997 as well.

OEM Parts
996-362-150-00 Collapsible Spare Tire (996)
996-722-101-00 Jack and Tool Holder Insert
997-551-108-00-02A Bose Amp Cover
997-551-051-20-A31 Trunk Liner (Black) Bose Amp Only
Click the image to open in full size.Click the image to open in full size.


Non-OEM Parts
(2) Sealed Rivets----------- McMaster: 97524A046
(1) Easy Align Weld Nut ---McMaster: 90955A129
(1) 6” Threaded Rod-------McMaster: 90557A650
(1) Wing Nut---------------McMaster: 92239A250
(4+) Blind Rivets----------- (Your choice)

Major Steps:
Disassemble Trunk, Remove CD Changer and All Liners
Click the image to open in full size.

Remove DVD/NAV Drive from Mounting Bracket.
Click the image to open in full size.

Rivet CD Changer Bracket to NAV/DVD Drive Mounting Bracket
Click the image to open in full size.

Mount Weld Nut In Raised Sheet Metal (Do Not Drill Through the Trunk!!!)
Click the image to open in full size.

Test Fit of Assembly (Note Location of Weldnut)
Click the image to open in full size.


Cut Hole for Spare Tire Mounting Rod, Install Carpet
Click the image to open in full size.


Mount Insert and Tool Kit
Click the image to open in full size.


Finished Product
Click the image to open in full size.

More pictures & additional steps/ details can be found here: CLICK

Last edited by stilljester; 05-03-2011 at 06:33 PM. Reason: Added part numbers for non-OEM parts
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Old 05-01-2011, 05:21 PM
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how much did you pay for the tire jack et al? I'm pondering purchasing for my 2006 C2S. Any recommendations on the best place to purchase?
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Old 05-01-2011, 07:04 PM
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Nice job. And they said it couldn't be done. Did you discard the CD player because there was no room for it with the spare in place ? Could the CD have been piggy backed with the +NAV and still allow room for the spare ? Thanks for posting as I have contemplated getting the spare for road trips as I don't trust the goop or the tiny compressor that came with the car.
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Old 05-01-2011, 07:13 PM
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I saw the full kit on suncoast.

Click the image to open in full size.

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Old 05-02-2011, 04:25 AM
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Quote:
Originally Posted by 911CSLover View Post
how much did you pay for the tire jack et al? I'm pondering purchasing for my 2006 C2S. Any recommendations on the best place to purchase?
Budget between $250-$500 for the setup. The final cost really depends on how patient you are; go deals can be certainly be found. I would suggest to scan the Classifieds forum here, eBay and/or use a board sponsor like Suncoast.

Quote:
Originally Posted by Dadio View Post
Did you discard the CD player because there was no room for it with the spare in place ? Could the CD have been piggy backed with the +NAV and still allow room for the spare ?
CD changer was mainly removed because I substituted an IPod to perform the same function. I could have mounted it in tandem with the +NAV drive but I wanted to keep as much trunk space as possible.
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Old 05-02-2011, 05:19 AM
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Could you post how the sealed rivets were placed on the raised sheet metal? You state not to drill here (due to location of the gas tank, I'm sure).

Your set up looks great. I have the Boxster bicycle tire in my frunk.

thanks
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Old 05-02-2011, 06:12 AM
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Originally Posted by ecostellodo View Post
Could you post how the sealed rivets were placed on the raised sheet metal? You state not to drill here (due to location of the gas tank, I'm sure).

thanks
Please excuse the crudeness of the sketch but I think this should help.
Click the image to open in full size.
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Old 05-02-2011, 06:48 AM
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Ahhhh, I see and understand.

Thanks
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Old 05-02-2011, 01:26 PM
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Don't count on your skill with a drill to not go through both 'A' and 'B' above. Tape the drill bit to a depth that would allow only penetration of 'A' or use a collet on the bit to control depth. Once the bit goes through the first wall it may pull itself through the second. you are dealing with thin sheet metal.

To the OP thanks for the post. I often think about this as I sometimes find myself a day's drive from home.
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Old 05-03-2011, 09:43 AM
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Could you post where you sourced the rivets and well nut? Part numbers for those would be helpful.

thanks
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Old 05-03-2011, 10:06 AM
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Good job. I just recently bought the Suncoast kit - been looking around for that wheel (17in collapsible) used for a while and finally gave up - 16's are easy to find - 17s are very rare. The tire alone is almost $700. If you did all this for under $500, kudos big time.

I just have mine propped up like yours but not secured, although it is sitting with two wheel chocks on each side and is probably very close to contact with the Das Schild liner - doesn't look like it is going anywhere and I also have now the option of putting it in the rear seat. I still want to explore putting on the floor, but that looks like it will be very tight or not possible.
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Old 05-03-2011, 12:04 PM
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Nicely done!

bob
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Old 05-03-2011, 12:50 PM
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I like it -what do you do with the flat tire? Will it fit in the back seat?

Matt
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Old 05-03-2011, 04:21 PM
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Quote:
I like it -what do you do with the flat tire? Will it fit in the back seat?
Tell the person in the seat next to you to hold it steady and not let it rub the dash
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Old 05-03-2011, 06:42 PM
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Quote:
Originally Posted by ecostellodo View Post
Could you post where you sourced the rivets and well nut? Part numbers for those would be helpful.

thanks
No problem. My original post has been updated with the part numbers.

Quote:
Originally Posted by Alan C. View Post
Don't count on your skill with a drill to not go through both 'A' and 'B' above. Tape the drill bit to a depth that would allow only penetration of 'A' or use a collet on the bit to control depth. Once the bit goes through the first wall it may pull itself through the second. you are dealing with thin sheet metal.
Great comment. Another suggestion would be to pick up a set of drill collars. They are cheap insurance when controlling drill depth is critical.
Click the image to open in full size.

Quote:
Originally Posted by Matt(inMA) View Post
I like it -what do you do with the flat tire? Will it fit in the back seat?
Yes it will fit in the back seat. My tool kit contains a plastic bag to place the flat in to prevent marring interior surfaces.
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Old 05-03-2011, 06:42 PM
 
 
 
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Tags
19, 2006, 2007, 997, bracket, cd, changer, collapsable, collapsible, jack, location, mount, mounted, porsche, spare, tire, trunk


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