Removal

- Remove the trunk mat(s) and the existing foam insert.​

- Remove the rear plastic trim piece by extracting the cargo net pins and firmly lift up (there are a number of clips that are along the top edge)​

- Remove the left side trim piece by removing the 2 plastic rivet pins and pulling the rear top lip down from under the rubber molding and finally pulling out as it releases the velcro at the front edge.​

- Remove the right side trim piece the same as the left, except it has only 1 plastic rivet pin.​

- Remove the felt and you now have a bare trunk. This is what mine looked like and notice it has no bolt holes for attaching the center hub clamp of the spare wheel.​

Install

- Lay in the felt pad and reinstall the left and right trim pieces.​

- Reinstall the rear plastic trim piece.​

- Install the rubber pads as shown (note that I received 6 rubber pads - 4 thinner ones with white lines and 2 that were thicker and did not have lines, use the 4 thinner ones with white lines.)​

- Bolt the cross bar in using only the middle 4 bolt holes. My car did not have holes in the trunk for the outer 4 bolt holes. You'll see below that I just laid the bar on top of the left and right trim pieces and bolted it with the inner 4 holes. A true spare trunk would have those outer holes and different trim pieces.​

- Lay in the front foam insert​

- Lay in the left and right foam inserts.​

- Lay the spare tire/wheel in upside down.​

- Lay in the foam insert inside the wheel​

- Everything should be level across all those surfaces.​

- Install the trunk mats and you're done!​

You lose about 4 inches of depth. A good way to judge this is to notice how the front bump between the trunk floor and the back seat is now level with the trunk mat. Also after driving around this way, the spare wheel has not budged at all. It is very secure.

One last note is that the mats are a little tight lifting / lowering across the cargo net rings. Technically, the spare trunk has a different rear trim piece that locates those rings differently. However, my net is still fully functional and just takes a little manipulation to lift the mats over the rings.

Hope this helps!

 

Removal
- Remove the trunk mat(s) and the existing foam insert.
- Remove the rear plastic trim piece by extracting the cargo net pins and firmly lift up (there are a number of clips that are along the top edge)
- Remove the left side trim piece by removing the 2 plastic rivet pins and pulling the rear top lip down from under the rubber molding and finally pulling out as it releases the velcro at the front edge.
- Remove the right side trim piece the same as the left, except it has only 1 plastic rivet pin.
- Remove the felt and you now have a bare trunk. This is what mine looked like and notice it has no bolt holes for attaching the center hub clamp of the spare wheel.



Install
- Lay in the felt pad and reinstall the left and right trim pieces.
- Reinstall the rear plastic trim piece.
- Install the rubber pads as shown (note that I received 6 rubber pads - 4 thinner ones with white lines and 2 that were thicker and did not have lines, use the 4 thinner ones with white lines.)
- Bolt the cross bar in using only the middle 4 bolt holes. My car did not have holes in the trunk for the outer 4 bolt holes. You'll see below that I just laid the bar on top of the left and right trim pieces and bolted it with the inner 4 holes. A true spare trunk would have those outer holes and different trim pieces.


- Lay in the front foam insert


- Lay in the left and right foam inserts.
- Lay the spare tire/wheel in upside down.


- Lay in the foam insert inside the wheel


- Everything should be level across all those surfaces.
- Install the trunk mats and you're done!



You lose about 4 inches of depth. A good way to judge this is notice how the front bump between the trunk floor and the back seat is now level with the trunk mat. Also after driving around this way, the spare wheel has not budged at all. It is very secure.

One last note, is that the mats are a little tight lifting / lowering across the cargo net rings. Technically, the spare trunk has a different rear trim piece that locates those rings differently. However, my net is still fully functional and just takes a little manipulation to lift the mats over the rings.

Hope this helps!

awesome write up thank you very much I have one quick question though did you have to trim any of the foam pieces or everything transfers over without modification?

 

Great write up! Thanks for posting such detailed pics as well.

 

on that salvage yard site, i assume you use "spare tire carrier" as the part option? It says nothing found, but i submitted a search request. hopefully someone comes back to me with the parts i need.

thanks for the help man!

 

No, choose "wheel". Then on the next page you'll be able to select the "compact spare". Then it will take you to a TON of listings. Keep in mind due to the spare tire/wheel size you'll see lots of other infiniti vehicles. You can scroll down until you get to the Q50's if you are looking for more of the trunk parts.

 

great info. so where did you get the rubber pads from, if i may ask?

 

They came from the same car and salvage yard where I got the rest of the parts. I happen to see them in the picture the salvage yard guy sent me of the trunk so I asked him to remove those and throw them in. He had to break the adhesive to get them off but there was enough adhesive remaining that they are sticking well in my car.

 

do you own a silver sport or a red sport? is the bolt pattern the same for rs400 staggered rears as it is for the front and every spare wheel ever made for the q50 since MY2014?

have you noticed any change in driving dynamics since adding this to your vehicle?

 

I own a silver sport. My understanding is that the spare tire is the same for all Q50 models. Staggered or not makes no difference for the spare tire. I haven't noticed any difference in driving dynamics. You're basically adding probably 30ish pounds to the trunk with all the parts. So it is basically a minor weight penalty. However, my understanding is that non-RF tires are lighter than RF tires, so it may wash out in the end.

Good luck!

 

I purchased a new 2017 Q50S at the end of March. It did not come with the spare tire. In fact, Infiniti has gone so far as to almost eliminate that as an option

Clean and thorough install! Kudos and Congratulations on the new car.

It seems to be the trend many manufacturers who use run on flat tires are taking. I can't say I agree completely...but I also believe spare tires offer most people false hope. Most people never inspect their pressure level meaning they usually only have 1/6 of the pressure needed to safely operate after a few years in the trunk. Many people could not quickly locate and use the supplied jack and lug nut wrench in a safe manner. I think overall having tires you can safely operate for a little while on is overall beneficial to the group of people who can't/won't/will not change their own tire.

do you own a silver sport or a red sport? is the bolt pattern the same for rs400 staggered rears as it is for the front and every spare wheel ever made for the q50 since MY2014?

have you noticed any change in driving dynamics since adding this to your vehicle?

If you ensure you purchase a rim from a sport model Q50 or Q60 you should be fine. The bolt pattern is the same for almost all 5 lug Nissan/Infiniti products use a 5x4.5/114.3 bolt pattern, and the calipers look like the same ones they've been using for a while.
I wonder if the increased weight could be offset by ditching the run flat tires when it comes time for replacement.

 

If you ensure you purchase a rim from a sport model Q50 or Q60 you should be fine. The bolt pattern is the same for almost all 5 lug Nissan/Infiniti products use a 5x4.5/114.3 bolt pattern, and the calipers look like the same ones they've been using for a while.
I wonder if the increased weight could be offset by ditching the run flat tires when it comes time for replacement.

I saved about 4lbs each corner when i switched to regular tires. And I think for those folks who replaced their stock muffler and/or rims saved even more.

 

Parts You'll Need
7. Felt Blanket for Trunk with Spare
8. Cross Bar (recommended but not required)
9. 4 Thick Adhesive Rubber Pads (with single white lines on them)
10. Trunk Mat for Trunk with Spare

should each of the above parts be present on a salvaged q50 with intact trunk and spare? i'm guessing trunk mat that came with your vehicle was incapable of being placed over the spare?

 

Yes, all of those parts should be present from a salvage Q50 with an undamaged trunk with spare. The existing trunk mat you have would not fit well, so I would just get the salvage yard to include the mat from the car you are buying the parts off of.

 

Looks like my pictures for this process started showing again. I have no idea why and was actually in the process of trying to find an alternative to Photobucket, but lets enjoy it while it lasts!

 

And they are gone again... any chance of getting like a .pdf or something with the pics?

Just got the spare ordered and the tools/ Jack, and was going to rig the rest...

 

You can order a Red Sport AWD with the spare kit. It is just a special order. The spares as mentioned are expensive.

 

I got a used spare and tool kit, I was just wanting to see the pics for the retrofit that he did. There were some pads, etc that he placed, and I was curious about.

 

Will any scissor jack for a Nissan or Infiniti fit the Q50 Red Sport 400? Where can I get a spare for this car?

 

The "Red Sport 400" is not unique in any way when it comes to the spare tire, jack, trunk etc... I did outline exactly what is needed and where you can get the items in the first couple posts of this thread. Did you review those posts?

 

The Dunflops run 31 pounds...My Conti DWS06 replacements are 24 pounds. So there's a 28 pound difference to offset the spare tire installation with those tires. Other non-RFTs run around 28 pounds so it depends on what tire you replace the RFTs with.

 

I was hoping to fix these pictures, but I can't find anywhere to save them and have them display correctly and this site by default does not offer enough storage.

 

Here are the main pictures. Hope they help.

 

awesome thanks.

 

Hi

Unfortunately, don't see any photo. Could you please reupload?

 

See post #27 above for the important pictures.

 

Great, now I see!

Could you please advise, what are the Part Numbers of all these things?
Your links to the parts lead to the wrong urls.

European versions all don't have spare tires - so I can't see it in original catalogs.

 

i have the parts numbers somewhere, just have to find it.... but be aware you looking into 1200 dollars or more if you get everything new

 

You can find the parts by going through the related diagrams on Infiniti's official parts site.
https://parts.infinitiusa.com/

Refer to the pictures I added in post 27
http://www.infinitiq50.org/forum/di....org/forum/diy-garage/106018-how-add-spare-tire-kit-2017-q50-3.html#post1238129

 

Over here in the UK, Q50's are not that common. I carry a 17" Hyundai i40 space saver. Same PCD 5x114.3, clears the larger brake caliper easily. The only part of the tool kit I had to change was the towing eye. The scissor jack is the same as Infiniti/Nissan. Wheel and tools from local scrap yard £45

 

damonb10 Thank you so much for your derltailed post. It REALLY helped! I leased a 2015 Q50 and just bought a CPO 2017. I was very disappointed it didn’t have a compact spare UNTIL I saw your post!

Went to that car-parts sight and found the whole kit off of a salvage yard a couple states away. Some of the other salvage yards listed only had the spare, not the spacers and crossbar and such.

At any rate, this salvage yard sold me all those parts for $350, but shipping was $150 because all they do us 2 day delivery. Paid for it ok the phone Wednesday, the spare tire kit arrived today, and it fits “perfectly” just as you described. I could care less about loosing the 4” depth in the trunk because that is what I was used to in my former 2015 Q50. Again, huge thanks!

 

Awesome! Glad to hear you went the same route as me. Saves a lot of money. Looks like you could use the all-weather mat for the trunk that is sized for the spare tire package But that is pretty minor anyway.

 

I searched for wheel, then compact tire. Then I called the places and asked if they had the entire trunk kit, foam spacers, crossbars, liners,pads etc. One salvage yard just had the tire, nothing else. The next one I called said he had everything. Even emailed me a picture. After I saw that email I called him back and placed my order.

 

Thanks. I appreciate the info.

 

How did anyone get the hold down bolt thingie to attach, as there is no bracket welded to the bottom of the spare tire well? Or do you have it just placed there "loose" to fly out if you crash n flip?

I have considered making a bracket so I can use a standard Nissan hold down centering bolt thingie.

Any ideas??

 

When I ordered all my parts, the salvage yard I worked with was able to send me EVERYTHING. I do have the hold down bracket, but no way to install it. I considered using a structural adhesive, but ultimately it will just be fastening itself to the paint that is in the bottom of the trunk. I suppose it would be another layer of retention for the spare, but not a strong bolted connection.

I've been going without it for a year now and the wheel has literally never moved a mm. I suppose in an accident it could move, but doing a brief risk analysis of what could happen and where it could go, I just can't see it causing any problems or damage. It would have to overcome a couple of layers of covers that are held down pretty firmly before it becomes free to roam and then it needs to overcome the trunk and or backseat. I feel that by that point there would not be enough energy to cause any problems.

 

U-bolt with nuts, fender washers and rubber washers top and bottom (or inside and outside). And maybe cover the protruding hardware on the outside with silicone caulk. Stainless steel hardware.

 

I was going to have a "hat section" bent up _/-\_ with a nut with the thread pitch of the Nissan hold down bolt centering thingie wielded on the top after drilling a pass through hole.. then "JB wield" the "feet" to the bottom of the wheel space.

I used to work in a sheet metal shop. I could have used a press brake to make one in 10 minutes out of scrap on a Saturday. Then run it through the e-coater to paint it. It would be real simple to make. I'd make 10 & give 9 away. Infiniti should have this part so if you order the "Spare tire option" they/you could safely install the spare.

 

You think JB Weld would be strong enough to fasten it to the floor of the well?

 

Hi, I have downsizs to 18" wheels and tires, I have a 2017 SS with no spare, I will try to put my tire and rim in the spot where the spare should be, if it fits, I will get a real spare for under $200. I will post a picture of

 

Hi i found this site called Autopartsfair. and was able to order a spare 18" will pick up tomorrow, they have a number of locations in the States and Canada. $120 Canadian.