Gavsadler's 2011 E90 M3 Sedan M-DCT

Peter@AEW

BMWFanatics Advertiser
Official Advertiser
///Avi said:
Peter@AEW said:
In answer to your questions I would propose that the engine was not driven cold and that oil changes were regular and not as per BMW intervals.

I imagine that this engine was never driven under high load and low revs conditions either.

Given how this engine is I would buy a car from the previous owner no questions.

I would say the first owner also requires a pat on the back. He did 90% of the mileage and while it was under plan he went the extra mile and did the right things.

The bearings look to be in great condition! Well done!

You are absolutely correct.
First owner is equally to be commended for looking after this engine.
 

Peter@AEW

BMWFanatics Advertiser
Official Advertiser
Closed up the engine and did some cleaning.
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Peter@AEW

BMWFanatics Advertiser
Official Advertiser
We also ordered new engine mountings given that both the old ones were broken.
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444YYY

Honorary ///Member
@Peter@AEW been thinking about those bearings:
It seems like the Grey ‘Coating’ later has just about depleted, and the copper layer is starting to show.
When you say it’s got 70 000km still to go, does it mean that it can safely deplete the copper layer too?
 

Peter@AEW

BMWFanatics Advertiser
Official Advertiser
444YYY said:
@Peter@AEW been thinking about those bearings:
It seems like the Grey ‘Coating’ later has just about depleted, and the copper layer is starting to show.
When you say it’s got 70 000km still to go, does it mean that it can safely deplete the copper layer too?

Not at all

The bearing surfaces are uniform with no divets and the coating is starting to wear.

Look at this by comparison

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Compare these photos with the ones below

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Arbee

Honorary ///Member
Peter@AEW said:
@444YYY look at Arbee's thread on what 80k bearings look like and compare to the bearings here
https://www.bmwfanatics.co.za/showthread.php?tid=89114&page=6

Good job Shiroo and previous owner, those bearings look brand new compared to not only the ones out my car but in general at that km.

Thanks for posting Peter. Gav, im sure the piece of mind knowing that you not only have a gem but a gem with new bearings is substantial!
 

gavsadler

///Member
Time for a long overdue update from my side...

As you may have gathered, the car was sent in to have the bearings done. I had been accumulating the parts bit by bit over the past few months, so minimise the butt hurt come December time.

Anyways, after much procrastination, reading, discussions with fellow forum members, and also evaluations of other external parties, I decided to send the car to Peter. It was dropped off a few days before Christmas and collected shortly after New Year.

Honestly, it felt weird sending one of my cars for someone else to work on, given that I can throw a few spanners around on occasion. I did seriously ponder to do the job myself, but the lack of a lift, a fancy torque wrench and not being familiar with the intricate details of the S65 deterred me from doing so.

Overall, I am pleased with the service Peter offered. Despite my car going in just before holiday time, he soldiered on to complete the job whilst everyone else was relaxing with family and friends. On a daily basis I would receive pictures and feedback on progress made, as well as any other gremlins that popped up. Thankfully these were minimal.

Over and above the rod bearings. I had my suspicions about replacing the engine mounts (also seeing as the sub-frame comes off anyway), but didn't order beforehand. Once stripped down, one mount was KO and the other was also looking a bit sad and collapsed slightly. So new mounts were ordered and installed. There was also a plastic bracket missing which secures the oil cooler pipes, so this was also ordered and fitted. In it's past life, the radiator must have been removed at some point and installed incorrectly (skew), but this was rather easy to rectify, and minimal financial outlay - let's say things came to fruition.

Here's a summary pic of all the rod bearings:

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Anyways, I've had the car back for about 2 week, and completed close to 400kms since the repairs. All is going well. It does feel smoother with the new mounts fitted, although I also suspect there is some placebo effect in the mix.

I'm going to take it easy for the next couple of months, to make sure everything is A-OK and settled down before stretching it's legs again.

Also, shortly after getting the car back, I replaced the cabin air filters. The ones which came out had done approx. 20000kms:

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Other than that all is good. Will post more updates again soon....
 

UpNcOmiNg!

Events Organiser
Lovely stuff!

Those bearings actually look pretty damn decent considering, but I am sure you are chuffed that is now done!

Pretty much every e92 M in existence now is just about in need of this soon. Peter is in a great business haha
 

Kyle

///Member
Awesome stuff bud... Those bearings look amazing, perhaps those were the newer bearings with the more resilient material?
 

kingr

BMWFanatics Advertiser
Official Advertiser
Well done! Prevention is better than cure, good you got the bearings sorted. Now you can sleep like a baby at night
 

gavsadler

///Member
Kyle said:
Awesome stuff bud... Those bearings look amazing, perhaps those were the newer bearings with the more resilient material?



Yes correct. I don’t know the exact composition but from what I’ve read the earlier bearings were copper and lead, and then the newer bearings (2009 onwards) are aluminum and nickel.
 

gavsadler

///Member
Just a quick update, just crossed the 1000kms milestone since doing bearings, everything still going good.

I’ll start to open it up a little bit more from here, but still keeping loads light and RPMs reasonable. Target is to get to 2000kms exercising restraint.

We’ve got a holiday planned next month, heading to the south coast, pondering if we should go in this car so I can feel what it’s like with an extra 18% odd of vooma
 

KPAKKIRI

Member
I've just done the bearings on my E90 M3 through Sav Speed. I've been told that the engine does not need running in although I should drive decently for a couple hundred of km's. This was also confirmed when I checked on the internet. Seems like the bearings does not touch the crank. What do you guys think?
 
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