[Joe-BMW33]

Dropped my car at the dealer for an inspection sticker and to have a look at the passenger massage seat function and just got this email:

Hi Joe, we definitely need it over night

Something not related to your concerns is the quibo (drive shaft) is starting to have hair line cracks so we are replacing it

Seems kind of random. She said it is not common but she has seen it before. Anyone have any experience here or know of causes for this? Maybe the dealer fishing for warranty work?

[CnSky]

Seems common on BMWs Joe.

If you were in Europe I would send you one as I have a spare I purchased when chasing a different issue.

Are you under warranty?

Also make sure if they are taking the drive shaft apart they mark the linkages so it goes back exactly the same way.

They are factory balanced, if the splines dont go back to exact position they were in you will have bad vibrations etc.

Ask them to look at the CSB also as if the Guibo is letting go it may also have worn the CSB prematurely. ( bearing half way down the drive shaft?

[Joe-BMW33]

Originally Posted by CnSky

Seems common on BMWs Joe.

If you were in Europe I would send you one as I have a spare I purchased when chasing a different issue.

Are you under warranty?

Also make sure if they are taking the drive shaft apart they mark the linkages so it goes back exactly the same way.

They are factory balanced, if the splines dont go back to exact position they were in you will have bad vibrations etc.

Ask them to look at the CSB also as if the Guibo is letting go it may also have worn the CSB prematurely. ( bearing half way down the drive shaft?

Thanks for this and your offer for your spare, I appreciate it. It's all dealer warranty work. I'll assume they know what they are doing in terms of install and the things you referenced to watch for. Glad it's not a sign of something bigger.

[D52M550]

I was told I need to replace the guy I on my car at about 40K miles. However, they told me that the CPO warranty does not cover the guiro. Is this accurate? I’ve had one local BMW dealer cover something that another local BMW dealer said wasn’t covered, which is why I ask.

[jimk]

The dealer replaced the quibo right before selling me the car when they’ve done an inspection. No warranty, no CPO, 2018 M550i xDrive with approximately 41,000 miles at the time of replacement. My reasoning is that the excessive torque these engines produce can cause weaker parts along the driveline to fail after some time.

[Joe-BMW33]

Originally Posted by D52M550

I was told I need to replace the guy I on my car at about 40K miles. However, they told me that the CPO warranty does not cover the guiro. Is this accurate? I’ve had one local BMW dealer cover something that another local BMW dealer said wasn’t covered, which is why I ask.

I believe the Guibo is not covered under CPO, which is unfortunate because it’s a known issue and has been a known issue for many years across many BMW models. I think they view it as wear and tear which is why CPO won’t cover it.

The other thing is if it is covered under CPO, they aren’t just going to replace it at 40k just because, it has to show some cracking or stress fractures.

[jimscamp]

I had mine replaced under warranty yesterday after the dealer noticed cracks and splits.

Didn't look too bad from the video they sent - just a few splits at the sides of the bolts, but still looked like it was holding together alright...

However, now it's been replaced, the car has really tightened up - I hadn't noticed previously but the small amount of hesitation in the gear box and a slight lurch from the car when braking to a stop (which I thought were the brake pads getting old) have completely disappeared!

Comfort is now super responsive and the issue I had initially gone in for which was a rotational noise linked to road speed that I assumed was a bent alloy or tire bubble is now gone too.

I'm hoping it's not placebo as I hadn't actually expected it to change any of those things. I just started driving back from the service center and immediately was like "Oh, this is different?!".

[Joe-BMW33]

Originally Posted by jimscamp

I had mine replaced under warranty yesterday after the dealer noticed cracks and splits.

Didn't look too bad from the video they sent - just a few splits at the sides of the bolts, but still looked like it was holding together alright...

However, now it's been replaced, the car has really tightened up - I hadn't noticed previously but the small amount of hesitation in the gear box and a slight lurch from the car when braking to a stop (which I thought were the brake pads getting old) have completely disappeared!

Comfort is now super responsive and the issue I had initially gone in for which was a rotational noise linked to road speed that I assumed was a bent alloy or tire bubble is now gone too.

I'm hoping it's not placebo as I hadn't actually expected it to change any of those things. I just started driving back from the service center and immediately was like "Oh, this is different?!".

The dealer replaced mine under factory warranty as well. I brought it in for something trivial and they called and said it showed stress fractures. I am pretty sure dealers look for this constantly as it's easy warranty revenue. I did not notice any symptoms before and did not notice anything after replacement. Guessing mine saw barely stressed.

[MauiSteve]

It's not quibo, but rather giubo- also known as a flexdisc. Often misspelled as guibo as well. This transfers the rotational torque from the driveshaft.

Unfortunate to hear these are failing in relatively low mileage vehicles. I would think these should last closer to 100,000 miles.

[Joe-BMW33]

Originally Posted by MauiSteve

It's not quibo, but rather giubo- also known as a flexdisc. Often misspelled as guibo as well. This transfers the rotational torque from the driveshaft.

Unfortunate to hear these are failing in relatively low mileage vehicles. I would think these should last closer to 100,000 miles.

Yep,
Old thread. I’ve learned all I ever wanted to know about the “Guibo” since I got the call from my dealer, wrote down whatever I thought she was telling me and posted this transcribed conversation into a thread. I now stick with Flex Disc 😂

[D52M550]

Originally Posted by Joe-BMW33

I believe the Guibo is not covered under CPO, which is unfortunate because it’s a known issue and has been a known issue for many years across many BMW models. I think they view it as wear and tear which is why CPO won’t cover it.

The other thing is if it is covered under CPO, they aren’t just going to replace it at 40k just because, it has to show some cracking or stress fractures.

Yeah, they did that video inspection and it showed a couple small cracks/fractures. My service rider told me it wasn’t a big deal yet; just that the tech had to show that he found some wear. Thankfully, all is running well currently, but will keep an ear out for any vibrations. Thank you.

[G30M]

kudos to the dealer (mechanic), who actually inspected and found issue

[ezaircon4jc]

Originally Posted by D52M550

Yeah, they did that video inspection and it showed a couple small cracks/fractures. My service rider told me it wasn’t a big deal yet; just that the tech had to show that he found some wear. Thankfully, all is running well currently, but will keep an ear out for any vibrations. Thank you.

I'm pretty sure he's a service writer, not a rider...

[Joe-BMW33]

Originally Posted by ezaircon4jc

I'm pretty sure he's a service writer, not a rider...

I’m pretty sure the correct title is a Service Advisor. But you’re officially in the race for forum editor😂.

[ezaircon4jc]

Originally Posted by Joe-BMW33

I’m pretty sure the correct title is a Service Advisor. But you’re officially in the race for forum editor😂.

You, sir, are correct.