10-16-2020, 08:42 AM | #1 |
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8 Series - Serious Tyre Issue
I have an 840d, which I have had for around 18 months, and been running on Bridgestone S007's from new. I say 007's plural, because the thing has been eating tyres. But not all of the tyres, just the outside and inside edges.
When I say eating tyres, I changed the NSF tyre 3000 miles ago. Last week - what I didn't see was the inside edge being worn down to the cords, didn't see it of course until the tyre let go at 80mph. The rest of the tyre still had 5mm of tread on it ! When it went into the dealer on the back if a truck, the only tyre that hadn't worn the inside edge down to the cords was the rear tyre that I replaced only 1500 miles ago. The wheel alignment has been checked three times, 2 by BMW dealers, and 1 by a specialist company that I used to align the wheels on my previous Porsches - the wheel alignment is absolutely spot-on. After a week at the dealer, who has had 2 other customers with the same problems we escalated to BMW UK. Their response 'This is what 8-Series do when they are driven enthusiastically', and they have had many reports of this 'phenomenon' . Now, I like to drive quickly when the road permits, but here in the UK, it rarely does and most of the time this car is just gently cruising around. I have had some cars in my time, and some that like to get through tyres, but none that would shred a front tyre in 3000 miles literally on one inside edge ! So after around £2.2k in tyres in 12000 miles, if you run any type of 8-Series - be aware guys ! I am of course going into battle with BMW over this, in my opinion this represents a safety issue. I am also going to switch to Michelin, I would got with Pilots, but don't want to keep putting good tyres on if they are just going to be shredded, so I am going to see if Super Sports will improve the situation. So beware fellow 8ers, I love the car, but I cannot hang onto it at this rate ! Quite literally as it happens ! |
10-16-2020, 08:54 AM | #2 |
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I have the same car. It has the rear diff. Same tyres with 10,000miles. Just took a look and all looks good with quite a few miles to go - I would say 6000. Although UK r/h I drive in Netherlands and the roads are superb with no cambers and potholes. They are also pretty straight. I do throw it around though and as i go to Germany a lot get up to 140-150mph. James Bond no issues for me at the moment! What I have noticed from day one is a crabbing on the road at very low speed when turning a lot, especially on paved parts of the road way (which is common here).
Last edited by Wing Co; 10-16-2020 at 09:02 AM.. |
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10-16-2020, 09:31 AM | #3 | |
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10-16-2020, 02:33 PM | #5 |
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Because it is both outer edges I wonder if it is something to do with tyre pressures, what are you running them at?
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10-16-2020, 04:04 PM | #6 |
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Good question Brad, so running about 2.4 - 2.6 and I would say it’s pressure related on the face of it as you say, but that is BMW guidelines. Doesn’t mean they are right though.......
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10-18-2020, 12:42 AM | #8 | |
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My previous car was a C63 W204 which had 235/40r18 and 275/35r18 rear tyres (stock was 255/35r18 but I always ran 275) The door card for that was about 2.8 and 3.0 iirc and I had great tyre wear. I remember thinking that it seemed like a very high pressure but then it had fairly narrow tyres for the weight. I think your 840d will be about the same weight as the C63 with similar tyre widths so perhaps something to try?
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10-18-2020, 05:00 AM | #9 |
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I have an 840i I bought roughly 12 months old with only 6,500 miles. I had to take it in to have the Display Key reprogrammed and while there, they sent me the service inspection video that showed front outside tread depths of 2mm and 3mm, which I thought pointed to some over zealous driving by the dealership when they owned it.
I am already noticing some understeer "sliding" when going around roundabouts and normal speeds. I have spoken to the dealer and they claimed all tyres were at or above their minimum tread depth of 3mm when inspecting for CPO, and all they are prepared to do is offer me £150 towards new tyres. I do think there may be an issue here. Would be interesting to see if different pressures will make a difference. I am about to switch onto winter wheels and tyres now anyway, but will come back and address in the spring.
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10-18-2020, 11:20 AM | #10 | |
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01-04-2021, 03:22 AM | #11 | |
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Having done 8500 miles. Two sets on the front and one set due iminently on the rear. BMW say it's a characteristic of the car. When the tyres start to get worn on the front it starts to crab and jump on full lock. Michelin now do tyres for the 850 so I will be swapping to those, as in my experience they normally last longer and dont have the tramlining, crabbing charactistics when they get to the last few mm of tread. If anyone has any other intel or experience in resolving it please do let me know |
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01-07-2021, 11:13 PM | #12 |
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I luv Michelin’s and have for years but unless the tread on the tires wasn’t placed right I doubt it’s the non-Michelin tires and most likely one of two things, the vehicle itself or driver. If you drive moderately, it’s the vehicle’s alignment, steering rack or another f/e component. If they’re wearing on the outer edges may be too much toe in, if it’s more of an incline wear running from high to low across the tire it’s more likely a camber issue, if a cupping issue it means the tires are not maintaining a proper contact patch and bouncing at speed. Some vehicles are known to be uber sensitive to alignment and unless done perfectly will cause issues...hoping the 8’s are not one of them
Last edited by RJC-1; 01-07-2021 at 11:26 PM.. |
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01-11-2021, 01:46 PM | #13 |
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RJC-1 I had the alignment on my car checked with a full laser alignment and it was perfectly aligned. There isn't much enthusiastic driving in the car either, so it is my view there is something odd with the Bridgestone tyres.
PHICKOX So..... I have a case open with the DVSA who are investigating BMW UK. They dismissed the initial response from BMW and asked them to investigate further. BMW will no longer deal with me now that the DVSA are involved. However they provided the results of the investigation to the DVSA and once again, they are not happy with the response and told BMW to investigate even further. Given that they haven't asked to see the car, I can only assume BMW know they have some sort of issue but the excuses aren't washing with the DVSA. My plan would be to hand the car back to the finance company as not fit for purpose unless BMW decide to offer me an alternative resolution. However, they won't accept the fact it isn't fit for purpose until the DVSA investigation is concluded. I have since switched all 4 tyres to Michelin, but sadly I have worked out that the car has cost me more in tyres than fuel in the 13,000 miles I have owned it !! |
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01-11-2021, 03:37 PM | #14 | |
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If the alignment machines were not properly calibrated the alignment won't be accurate...did they say they were recently calibrated? As I also mentioned, suspension or f/e components are more likely possibilities. I appreciate the frustration but lots of luck when attempting to hand a vehicle back to the finance company, highly unlikely that will work out. If this turns out to be a systemic problem with all 8 series vehicles (jury is still out on that) it will most likely be due to an error in alignment specs by BMW, but with so few reporting this issue it's most likely not the issue.
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01-11-2021, 03:57 PM | #15 | |
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I don’t think it is an inherent issue with the 8 because as you say, few are reporting it. Those that do - have factory fit Bridgestones...... I’ll keep the thread posted on handing the car back.... |
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01-11-2021, 09:35 PM | #16 | |
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Really hope you get this resolved with the new Michelins, they are my favorite tire brand.
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01-12-2021, 03:17 AM | #17 | |
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Its a strange one - I know ! |
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01-12-2021, 07:59 PM | #18 | ||
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01-13-2021, 01:49 PM | #19 | |
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However BMW told me that is how the car is set up, but they also told me wearing through the inside edge of tyres in 3000 miles is also a characteristic of the car (which seems their stock answer for most things). But - now that I have switched to Michelin’s, it doesn’t happen. So it’s probably more BS. |
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01-13-2021, 03:19 PM | #20 | ||
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01-13-2021, 04:06 PM | #21 | |
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I do know that Bridgestone tyres are now being flagged up for very high rigidity walls.... which sort of makes sense. Btw - Mineral White looks amazing. |
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01-13-2021, 05:26 PM | #22 | |
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The wear index will let you know which tire will show the uneven wear sooner. Luv the MW too thanks, DG was the other color I looked at and also lovely.
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