Rod Bearings - to do them or not?

[SYT_Shadow]

Originally Posted by pbonsalb

]
Someone a few posts up suggested not worrying unless you planned to keep the car at least 3 years. I don’t understand that logic. These cars are 7-12 years old and there have been hundreds of failed motors and thousands of preventatively replaced bearings that have suffered seriously premature wear. How one reasons that these cars won’t have problems until they are 10-15 years old is beyond me. It’s like a lottery—not many people win but you can win at any age or mileage and it will cost you $10-20k. If you want to take the risk, that is fine, but to suggest there is no risk is to ignore the facts.

As long as people who don't want to do rod bearings have 20k sitting around for an engine swap and another 10k to buy a beater to use during the 6 months they'll be out of a car... no problem, don't do rod bearings

[Bemo]

Originally Posted by SYT_Shadow

As long as people who don't want to do rod bearings have 20k sitting around for an engine swap and another 10k to buy a beater to use during the 6 months they'll be out of a car... no problem, don't do rod bearings

Exactly my rationale. Why risk $20-30k by not spending $2k? Cheap piece of mind...

[atopa2002]

Originally Posted by beto3934

Well, looks like you want to pick an argument no matter what the responses are. You are now questioning my extended warranty without even know what I got. If I would explain or give details about it midline you are going to reply why the color of my car etc. CHEERS and end of the story mate. Good luck to you and stay healthy

The issue is that BMW has no new S65 engines sitting around

[Captain Starbucks]

Do them.

I have only had my car since October. I knew the issue going into the purchase, but didn't realize how much it would affect my enthusiasm for driving the car. Every time I'd rev it out, I'd carefully listen "oh shit, is it ticking? Is it gonna blow? Did I let it warm up long enough?".

I had them done, and can't tell you how much fun it is to drive this thing without constantly thinking about the bearings.

[Seeyou9000]

Hi,

I recently purchased a 2009 e92m3. The rod bearing was done by previous owner around 40k miles ago. Be bearings used for the change. Is there any need to replace the rod bearings again? My only concern is if the correct oil weight has been used and also car has been regularly serviced and warmed up properly.

[CamasM3e93]

Originally Posted by Seeyou9000

Hi,

I recently purchased a 2009 e92m3. The rod bearing was done by previous owner around 40k miles ago. Be bearings used for the change. Is there any need to replace the rod bearings again? My only concern is if the correct oil weight has been used and also car has been regularly serviced and warmed up properly.

There’s not enough data to say definitively. I am one of only a handful of folks who have put on a second set. The VAC bearings that came off after like 70k miles were pristine. I now think the one and done mindset is probably fine, assuming your prior owner didn’t slap another set from bmw in there (it happens). With BE confirmed in your case - you’re good. Would focus your preventative dollars on bolt on vanos covers, new fuel injectors, and an inline fuel filter. Welcome!

[Seeyou9000]

Originally Posted by CamasM3e93

There’s not enough data to say definitively. I am one of only a handful of folks who have put on a second set. The VAC bearings that came off after like 70k miles were pristine. I now think the one and done mindset is probably fine, assuming your prior owner didn’t slap another set from bmw in there (it happens). With BE confirmed in your case - you’re good. Would focus your preventative dollars on bolt on vanos covers, new fuel injectors, and an inline fuel filter. Welcome!

Thank you for sharing!

[Helmsman]

Originally Posted by Seeyou9000

Hi,

I recently purchased a 2009 e92m3. The rod bearing was done by previous owner around 40k miles ago. Be bearings used for the change. Is there any need to replace the rod bearings again? My only concern is if the correct oil weight has been used and also car has been regularly serviced and warmed up properly.

Just to add to Camas' input: As previous owner was cautious enough to invest in new RBs I would assume he/she also was with warm up and appropriate oil.

Welcome onboard!