12K miles is the recommended replacement interval for CVT Belt & rollers
No. No. No. No. No. It is not "recommended" except by dealers who need an early retirement. I suspect ilmostro went to the same dealer I used to go to about whom I've written in detail elsewhere on this forum. They took "recommended" to the next level of "mandated or your warranty is void" which led to the unravelling of the whole "CVT, Belt & Rollers" retirement scheme. It is all based on inspection and mechanic's expertise. Unnecessary maintenance has created a sad chilling effect on potential purchasers, made some people sell the bike, and soured people on the purchase. It needs to stop....(IMHO).
Nevertheless, that is the annotated maintenance schedule printed in my 2016 Owners Manual. Im not at those miles quite yet what are you recommending as the proper interval to perform such maintenance/inspection?
TwoPort ... I have a local bike shop (not BMW ... which requires a 2 hour roundtrip) who is an authorized Kymco service center ... "Kevin" tells me he can do everything that BMW can/will do (but only when it is really necessary) except he will not be able to reset the computer/service reminder. Sooooo (IYO) should I let it go til 24K (even to be checked) unless I notice any unusual noise or vibration?
"Sooooo (IYO) should I let it go til 24K (even to be checked) unless I notice any unusual noise or vibration?"
I personally would NOT WAIT for an inspection till 24K even if I thought it would go that far. Its so simple for the mechanic to look and the drive train is apparently a key area watch since it shows up in the annotated service book. This is my second service at the "new" BMW dealership and they both involved an inspection of the Chain and belt, so I think my inspections will occur about every 6K miles at oil change time. It seems reasonable to me. IN any event, the mechanic can't recommend if he has not inspected and that is the key. (I think it is anyway)
I have a '16 650GT with a little over 12K on it.
For the last few thousand miles it has been making an intermittent knocking/rattling noise, most noticeable at idle hot or cold, and having intermittent vibration issues felt through the floorboards, most prominently at highway speeds. it seemed to me to be a CVT/clutch/variator issue.
I took it to the dealer a few weeks ago and of course it was behaving normally. They offered to look at it during a $900 12K service and I politely declined.
Fast forward to today. I finally had my rollers and guides from Dr. Pulley and my belt from Italy and some free time to tear into it.
I found the ends of the shafts where they go into the cover bearings badly grooved (bearings felt fine) and the shivs badly grooved where the belt would ride at highway speeds.
Has anyone seen this before? I buttoned it back up and made an appointment with the dealer. This doesn't seem right to me.
I had the (prior) dealer requiring me to replace the chain, belt, and CVT rollers at 12K miles at the service desk - without even looking at it - or the warranty would be void which was kooky and over $1,200.
Regarding chain replacement: As discussed elsewhere on this forum, a sealed, oil-bath chain can probably go for a loooong time. My chain has about 17K miles on it and my mechanic inspected it and said it was in fine.
I don't know what the ragged edge of top mileage for Belt/CVT rollers is - and its not like I'm trying to set the record. But if the mechanic says it looks good then its good. My Belt and CVT have 13K miles and they were inspected and said to be fine.
I am going to change my belt for the second time really soon. I am going to have 30000 miles. 15000miles each. There is a wear mark on it if you know what to look for. (a little flat on the side of the top edge of the belt. When it disappears it should have been replaced or it will cut grooves in the aluminum).
I am also going to install the third chain adjuster. The chain is not what you need to think about. The chain will go at least 60000 miles (till the end of the adjuster #4) not any place on the maintenance schedules do they mention the adjusters so the dealers don't know any different (sorry to say they are stupid people) and can't read between the lines.
I will also be changing my transmission fluid during this same service.
As for the finally I will be doing the valves
I did the final drive oil and chain adjustment yesterday. Installed a #2 and it really needed a #3.
Also did an oil and filter and another set of tires. PR4’s this time.
I have no idea how y’all are getting such mileage with so little wear. 13k and this thing consumes everything in its path.
... once this problem is fixed I’m trading the POS in on something else.
Soooo... The dealer asked me to send him the pictures so he could send them to BMW to look at. We'll see if they say anything before I bring the bike in.
I was looking on MaxBMW's parts fiche and the input shaft, output shaft, variator discs, and the outer dive disc all show as NA. I'm thinking this will not bode well when it comes to replacing these items.
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