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Discussion Starter #1 (Edited)
Finally managed to get round to documenting in depth my rod bearing change experience and findings to help provide some info for others wishing to search.

Car had completed 54, 439 miles, it was due for the next oil service, so I decided to also have the rod bearings changed as a precautionary measure.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com<img src=" /><o:p></o:p>
Now although the bearings do not that severely worn in the pictures the scary thing was that the Crank was worn out of limits.
<o:p></o:p>
Luckily in my case BMW dropped my engine during the rebuild and therefore under their insurance provided me with a complete new engine of which I’m now running in again for the first 1200 miles…<o:p></o:p>

Service History as follows:<o:p></o:p>
773 miles (1200 mile service)<o:p></o:p>
17362<o:p></o:p>
22950 (Oil Change & SMG Oil Change)<o:p></o:p>
38119 (Oil Change)<o:p></o:p>
39783<o:p></o:p>
43233<o:p></o:p>
47229 (Oil Change)<o:p></o:p>
Clutch & Flywheel Change – 48k<o:p></o:p>
54439 New Engine Fitted


Hope this helps provide some insight and guidance
 

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Wow, you truly are quite lucky! I've ordered the oil test kit from Blackstone labs, so once that's in I will see how my oil looks. I'm at 60K miles, and recently started my extended warranty with Warrantech (through Bruce). If the oil has signs of bearing issues then I'll pay to have them replaced instead of taking the chance something isn't covered etc.
Did you have an oil analysis done before deciding to replace them yourself?
 

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Discussion Starter #4
Wow, you truly are quite lucky! I've ordered the oil test kit from Blackstone labs, so once that's in I will see how my oil looks. I'm at 60K miles, and recently started my extended warranty with Warrantech (through Bruce). If the oil has signs of bearing issues then I'll pay to have them replaced instead of taking the chance something isn't covered etc.
Did you have an oil analysis done before deciding to replace them yourself?

No no analsys before hand just decided as a precautionary measure
 

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Discussion Starter #5
What did the dealership charge to replace the bearings? Thanks a lot.
Originally they quoted 4800 euros, the new crank would have been an additional 3000 euros but as they dropped the engine I ended up paying not a single euro for a brand new engine :biggrin:

Lucky beyond belief:cheers:
 
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Discussion Starter #7
Yikes, 54k miles and only 4 oil changes. Glad you were able to get a new engine. Enjoy!
the 5th oil change was due as per BMW's service interval reccomendation.

it would be interesting now to see those other rod bearing failures / changes with their amount of oil services
 

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I think he said BMW actually dropped the engine. Like the hoist physically let go and it went falling on the floor lol
 

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Discussion Starter #11
In all honesty, the bearings looked fine And so did the crank.


Sent from AutoGuide.com App

Sometimes livening in Germany can be anal where there's a DIN standard for everything they do, in this case, I requested the bearings changed but the crank was also out of tolerance.

They were then kind enough to drop the motor and the German DIN standard for that procedure was to replace the whole engine as they could not confirm / garantee if any damage was done
 
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