E92 M3 / Rod Bearings

[buckleymark01]

So the general consensus is that this is a must-do on an S65 or else... “engine failure”. Is it really as black and white as that?

Who does this job in Dublin and what’s a realistic estimate? Anybody on here get it done?

Is anything else “a given” that it will need to be done apart from throttle actuators?

Had my rod bearings done last year and budget approx €2k

The actuators only need doing if they fail but there is a Company in UK who will recondition and warranty if you get completed in advance approx €400


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[rls]

I think the rod bearings issue is really exaggerated. I ran one for 8 years so spent alot of time researching issues etc and appears to be more of an issue in the US but still not something that really happens as often as is made out. Knew a BMW service manager who said he had 30 on the books at one time or another and hadn't seen it happen on any.

That being said a well minded car with full history is a must, it appears that it is caused by ragging the engine from cold so hard to tell but oil analysis does throw up if there is wear.

Apart from that the actuators went on mine and that's it, I put about 80k miles on it in that time. What an engine.

[DoktorB]

All ///M engines are race derived so rod bearings are a maintenance item eventually.

If you plan on keeping car and running it hard then it would be wise to plan in the cost.

However if its a low mileage, well maintained car that you plan using for normal day to day running then i wouldnt worry.