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      02-21-2017, 03:55 AM   #1
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My Michelin PS4S First Thoughts

All I can say is...wow!

It's like a different car, it's (almost) a joy to drive over potholes now, they feel like small bumps in the road, not the bone crunching mess that it was before. It's a much more enjoyable drive, MUCH more. It really is like a different car, I can't believe how bad the original tyres were before, it now wafts along when necessary and the grip is something else, and they aren't even bedded in properly yet.

As for my vibration issues, I had the alignment checked and they said it was spot on all round. On a motorway run, the vibration is much less, I need to do a longer test to work out if it's still there at all or if it was just the road I was driving on, but if it's still there then I need to look at other causes because the wheels were perfectly round and no other wheel issues were identified.

Overall though Im so happy with the drive now, everyone needs to do this right now!
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      02-21-2017, 05:01 AM   #2
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Quote:
Originally Posted by 325_bucks View Post
All I can say is...wow!

It's like a different car, it's (almost) a joy to drive over potholes now, they feel like small bumps in the road, not the bone crunching mess that it was before. It's a much more enjoyable drive, MUCH more. It really is like a different car, I can't believe how bad the original tyres were before, it now wafts along when necessary and the grip is something else, and they aren't even bedded in properly yet.

As for my vibration issues, I had the alignment checked and they said it was spot on all round. On a motorway run, the vibration is much less, I need to do a longer test to work out if it's still there at all or if it was just the road I was driving on, but if it's still there then I need to look at other causes because the wheels were perfectly round and no other wheel issues were identified.

Overall though Im so happy with the drive now, everyone needs to do this right now!
Good to hear they're a vast improvement. Might have to invest in some if I ever get my car back.
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      02-21-2017, 08:14 AM   #3
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yeah vast is an understatement. Going to take them for a proper spin after work to get a better feel for them
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      02-21-2017, 11:56 AM   #4
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I'm going to the Falklands in a couple of weeks for 4 months and this is the first thing i will be doing when i get back and i cant wait to ditch the runflats. What have you gone with for puncture repair?
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      02-21-2017, 12:24 PM   #5
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Nothing yet. Only fitted this morning. Need to order something. Any recommendations?
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      02-21-2017, 01:26 PM   #6
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Quote:
Originally Posted by 325_bucks View Post
Nothing yet. Only fitted this morning. Need to order something. Any recommendations?
I dont have a clue, need some ideas my self
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      02-21-2017, 01:33 PM   #7
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Pretty much all you need is a small portable air compressor to use when you are out in the country and gas stations are few. With tire pressure sensors you will know when a tire is losing air pressure. Almost all flat tires are the result of slow leaks. If you have a tire losing pressure, stop and pump it up at gas station or with your on-board air compressor. If you see a nail or screw, leave it in the tire until you are home or at a repair facility. Consider it a temporary plug.

If you discover a nail, screw, etc in the tire that has not lost pressure, put some soapy water (spit) on the nail and if it bubbles don't pull it out. If there are no bubbles, the nail is not through the tire and you can "almost" always safely remove it without further damage or air loss.
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      02-22-2017, 02:48 AM   #8
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proper test drive last night over some familiar bump roads. I have to say it's such an improvement, the potholes are obviously still there but they are now handled like I'm driving something with air suspension! they are just minor inconveniences now rather than feeling like the car is being broken apart on every bump. Road noise is much reduced too. So glad I did this!
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      02-22-2017, 03:24 AM   #9
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Where did you get the from Andy
They're not cheap in the uk...?
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      02-22-2017, 03:26 AM   #10
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Im not Andy but I'm the one who bought them in this thread at least. I got them from Oponeo.co.uk, polish site, but ship from Germany. £880 delivered
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      02-22-2017, 06:57 AM   #11
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I have continental sport contact 5 Non run flats on mine and it too was a vast improvement. To get rid of the vibration I had them balanced on a road force machine in Monmouth, only way I found to cure it, but had mine for 2 years now without vibration, I learnt that lesson on an f12 with the same issue.

For punctures I bought the M6 foam holder and repair fluid from BMW and a bMW compressor that fits in the tray off of eBay. It's same compressor that they use with the R56 Mini and fairly easy to get hold of at reasonable money. The kit fits in the flap at the back under the boot carpet. Very neat

I also have the BMW spacesaver kit for longer journeys.

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      02-22-2017, 06:59 AM   #12
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Quote:
Originally Posted by Apr1962 View Post
I have continental sport contact 5 Non run flats on mine and it too was a vast improvement. To get rid of the vibration I had them balanced on a road force machine in Monmouth, only way I found to cure it, but had mine for 2 years now without vibration, I learnt that lesson an f12 with the same issue.

For punctures I bought the M6 foam holder and foam from BMW and a bMW compressor that fits in the tray off of eBay. It's same compressor that they use with the R56 Mini and fairly easy to get hold of at reasonable money.

I also have the BMW spacesaver kit for longer journeys.

Regards
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Can you link me to those repair parts? Also what tray is it you are referring to?
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      02-22-2017, 07:17 AM   #13
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I should be able to find part numbers when I get home. There is a flap in the carpet at the back of the GC boot. There is a BMW foam carrier that holds the compressor and repair fluid that fits in the hole exposed by the flap. Makes a very neat job. I'm not sure if it's the same on coupe or convertible though.
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      02-22-2017, 07:17 AM   #14
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I've got a GC so will have to take a look. If you can et the numbers though that would be a great help.
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      02-23-2017, 04:38 PM   #15
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Storage B71.10.8.052.716 @ £26.65 + Vat
Tyre Sealer B71.10.2.282.827 @ £11.97 + Vat
Pump B71.10.6.792.688 Bought Off Of Ebay Same As A Mini R56 Circa £30
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      02-24-2017, 07:06 AM   #16
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Thanks for that, I see what you mean about the storage now, but I can't work out where it fits in the boot!
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      02-24-2017, 10:10 AM   #17
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There's flap in the boot floor, lifts about the last quarter panel of the boot floor towards the number plate. You should see a little plastic (or metal) hook to lift up. In the space revealed you'll probably find your BMW toolkit - which from memory is a screwdriver and the locking wheel bolt tool.
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      02-24-2017, 10:12 AM   #18
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Quote:
Originally Posted by elvisisdog View Post
There's flap in the boot floor, lifts about the last quarter panel of the boot floor towards the number plate. You should see a little plastic (or metal) hook to lift up. In the space revealed you'll probably find your BMW toolkit - which from memory is a screwdriver and the locking wheel bolt tool.
Yeah under that flap I already have a cubby hole, which contained the toolkit (wrapped up in a plastic pouch instead of in a nice storage area like my F10 (Is that right?))

So do those parts just fit in that hole then?
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      02-28-2017, 11:39 AM   #19
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Cant wait to wear out the Dunlops that came on mine from the factory.

Have a set of MPS4S waiting to go on.
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      02-28-2017, 12:44 PM   #20
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Quote:
Originally Posted by 325_bucks View Post
Nothing yet. Only fitted this morning. Need to order something. Any recommendations?
This: https://www.amazon.co.uk/Slime-18003...yre+repair+kit
Unlike some products it does't affect repairability.
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      03-01-2017, 05:13 AM   #21
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I've stuck with the OEM kit for now so that it fits nicely into the car, I found the official inflator new on eBay for £25, just need to order the holder and the sealant now to be complete
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      03-06-2017, 12:56 PM   #22
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Thanks for the tip Apr1962 this looks spot on and fits perfectly as expected. Exactly what I was after.

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