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Thread: Fitting Full Size Spare... there's room

  1. #1
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    May 2017
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    Melourne
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    Fitting Full Size Spare... there's room

    I just swapped my 18x7 ET43 235/55R18s for Comfortline 17x7 ET40 215/65R17s so I can fit snow chains.

    Before I did the swap I'd knew that the 17s are 20mm slimmer tyre than the 18s. I wonder, how much space is there with the floor panel at the raised position. A check revealed about 21mm additional space.

    Awesome, I can have a full size spare.

    Once I had the 17s I tried one... oh so close.....

    They are a few millimetres shy of fitting as a full size spare. The floor fits flush at the front but sits slightly raised at the tailgate. The floor panel recessed grab handle protrudes down preventing the floor sitting fully flush.

    Some packing on the tailgate lip would do the trick or a new panel with the grip to the side.

    Another option might be to deflate the tyre and carry a little compressor to re-inflate when required. I haven't tested this though so I don't know if the sidewall, deflated, would be any shallower.

    So, I'm on the lookout for an extra 17 inch rim and then I'll mod the rear floor panel and enjoy the security of a full size spare.

    Something, VDub should offer as an option.

  2. #2
    Join Date
    Nov 2013
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    Keen to see what you end up doing to get the floor sitting nicely. I was wondering if I would have to get a 17" steelie that had a tyre a bit narrower than the standard 17s.
    Current:
    2017 Mk2 Tiguan 162TSI, R-line, White
    2020 Mk7.5 Golf R Wagon, White

  3. #3
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    Quote Originally Posted by veew View Post
    Keen to see what you end up doing to get the floor sitting nicely. I was wondering if I would have to get a 17" steelie that had a tyre a bit narrower than the standard 17s.
    The steelie that VW sells is 17x6.5 so with same 215/65R17 tyre fitted I think it would be narrower still.

    Price for a matching alloy is outrageous. A single Tulsa 17x7 alloy wheel (no tyre) is $1472.00.

    The steelie is $172 ( 17x6.5 ET38 ) so, if I can't another Tulsa alloy on the cheap, this is the go. I'll wait until the spring to see but, once I need to tow the boat, I'll get the steelie.

  4. #4
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    You can often pick up a spare cheap in the for sale section as they do come up from time to time.

    Other option is the wreckers if you're not massively concerned about having a matching spare and just want a full-size alloy with the same spec.

    I do quite a bit of country driving and always carry a full-size spare just in case. I modified the floor of my previous Tiguan to fit a full-size spare (Tigger73's 125TSI Tiguan Build Thread) and have put in a false floor in the Scirocco also so that I can fit the spare in the boot.
    Last edited by tigger73; 01-07-2017 at 11:31 AM.

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  5. #5
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    Hi to all Just purchased and picked up my new toy Tiguan 132TSI Comfortline in tungsten silver with 17inch Tulsa Wish only if could get it with Kingston 18inch wheels with 235mm width , anyone in Sydney want 18 inch to swap for snow chain or whatever reason ofr 17 inch Tulsa with Tyres (Pirelli SCORPION ) 17inch for 18inch new for new ones or as new condition please let me know.Best Regards

  6. #6
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    What would happen if you put use a spare which is 215/65/16? The rolling circumference is a bit smaller so would that result in issues with the diff/drive train?
    Last edited by veew; 22-07-2017 at 09:39 PM.
    Current:
    2017 Mk2 Tiguan 162TSI, R-line, White
    2020 Mk7.5 Golf R Wagon, White

  7. #7
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    It would be just like the normal emergency spare put it on rear don't go over 80kph and get normal one fixed asap
    The rolling diameter is diffrent so as with the emergency spare go to fast drive to hard leave it on to long = likely damage
    2017 Golf Alltrack 135tdi All options
    19 inch Brescia Wheels Golf R brakes front and rear
    Calipers painted Candy apple gold
    New rear sway bar and linkages

  8. #8
    Join Date
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    OK so here is the table of wheel/tyre sizes and diameters for each manufacturer specified option for the Tiguan:

    Tyre Spec Rim Size/Offset Diameter
    215/65 R17 6½Jx17 +38 711.3mm
    215/65 R17 7Jx17 +40 711.3mm
    235/55 R18 7Jx18 +43 715.7mm
    235/50 R19 7jx19 +43 717.6mm
    255/45 R19 8½Jx19 +38 712.1mm
    235/45 R20 8Jx20 +41 719.5mm
    255/40 R20 8½Jx20 +38 712mm

    You can check whether a certain size is going work using an online tyre calculator such as Online Wheel and Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit

    The 215/65R16 is too small to fit onto the new Tiguan. Diameter is 685.9mm or 3.5% smaller. I would not even use this size replacing all 4 tyres as it is undersize and will make your speedo read fast. General rule of thumb is you want to be within +/- 2%.

    However if you're going to get a full size spare I'd want it "matched" if you intend to use it on the highway. Running different sizes/widths can upset the balance/handling of the car.

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  9. #9
    Join Date
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    Cheers mate, yeah wanted to make sure as thats why I'm looking for a full sized spare, need it to work when I'm driving it on the highway.
    Current:
    2017 Mk2 Tiguan 162TSI, R-line, White
    2020 Mk7.5 Golf R Wagon, White

  10. #10
    Join Date
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    Canberra, ACT
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    If the 215/65 R17 (and definitely the 235/55 R1 are a tad wide to fit in the spare wheel well, then you can consider 205/70 R17 (718.8 dia) and 210/60 R18 (709.2 dia). They may just fit. They are the same diameter as the standard tyres. But they are narrower, and what the impact of driving with one narrower tyre is I don't know. You would need some 'expert' opinions to help you.
    MY17 Tiguan 140TDI + DAP; Ruby Red; Notification of Birth 19 May'17; Emigration on Morning Celesta began 2 June'17; Entry into Australia 17 Jul'17; Citizenship obtained 8 Sep'17;

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