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      11-08-2015, 04:18 PM   #1
Ski1
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Buying E9x M3 - issues to watch for?

Rod bearings
Seems to be a hot topic in USA and UK. I'm looking at cars with 70-100k km so this may be something to look (listen) for?
Anyone replaced their rod bearings? If so what is a typical cost of the job?

Throttle Actuators
Another common problem?
I've heard cost of repair may be several thousand.
Feedback and advice?
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      11-08-2015, 04:21 PM   #2
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Quote:
Originally Posted by Ski1 View Post
Rod bearings
Seems to be a hot topic in USA and UK. I'm looking at cars with 70-100k km so this may be something to look (listen) for?
Anyone replaced their rod bearings? If so what is a typical cost of the job?

Throttle Actuators
Another common problem?
I've heard cost of repair may be several thousand.
Feedback and advice?
Don't buy it
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      11-08-2015, 07:31 PM   #3
DaveDee
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Quote:
Originally Posted by Ski1 View Post
Rod bearings
Seems to be a hot topic in USA and UK. I'm looking at cars with 70-100k km so this may be something to look (listen) for?
Anyone replaced their rod bearings? If so what is a typical cost of the job?

Throttle Actuators
Another common problem?
I've heard cost of repair may be several thousand.
Feedback and advice?
Nearly everyone I know has replaced rod bearings as a preventative measure, and it was needed. There don't seem to be any other major issues other than the odd idle air control valve.
In my own car I did a complete engine rebuild after bearing noise and in this case it was the mains bearings that were faulty. Mains bearings are an engine out job whereas rod bearings can be done dropping the K Frame and sump.
I know personally 4 owners who have had engine failures, catching this early will prevent severe pain.


Rod bearings and bolts cost about $1300 for a set and Prestige and Performance are around $1200- $1300 to replace them.
Performance cars can have problems, Audis have a carboning up problem that requires large expensive maintenance at every 20Kms or so

I've had my M3 for 5 years and it's the most well balanced exciting car you could own. Running costs/maintenance are a fraction of depreciation which is about 10K per year after the initial hit, so all this about cost of running is a storm in a teacup. It's like buying a V8 and worrying about fuel economy

Nothing wrong with the earlier cars but a big upgrade in 2009+ is the CCC to CIC upgrade and LCI

Don't be put off by these issues, whatever car you own will have unique problems of its own. While a car is in warranty the depreciation on that car will outweigh any mechanical issues
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      11-08-2015, 07:44 PM   #4
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I bought a MY08 with 68k kms on the clock about 12 months ago. No indications of rod bearing issues in oil or noises but I did it as preventative maintenance and I am glad I did. Well worth the money in my opinion.

thread on bearing mod here http://www.m3post.com/forums/showthread.php?t=1153809
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      11-08-2015, 08:32 PM   #5
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i wouldnt be worried, get it checked out by a mechanic , buy it and love it.
that bloke from the US is prob thinking in miles,

if youre worried cos you track it and run around long corners at 7000RPM then get them changed.

its a car, things will break like any other car, its just more expensive to fix as they were $150,000 new!
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      11-08-2015, 10:43 PM   #6
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Just factor $5k in maintenance and $50k in voluntary modifications.....

You speak to most people on this forum and the $4-5K you'd spend on preventive maintenance with Rod Bearings and actuators is a drop in the ocean compared to the voluntary mods they do to their cars to make them either go faster, sound louder or look better.

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      11-08-2015, 10:46 PM   #7
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Make sure inside trunk release has been disabled
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      11-08-2015, 10:53 PM   #8
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Check trunk for prior owners skeletons.
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      11-09-2015, 01:09 AM   #9
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Is there method behind the trunk-release-disable madness?
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      11-09-2015, 03:11 PM   #10
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thanks all - very helpful
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      11-09-2015, 03:14 PM   #11
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Quote:
Originally Posted by Ingenio View Post
Is there method behind the trunk-release-disable madness?
To keep your trunk-monkey from escaping
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      11-09-2015, 04:02 PM   #12
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Quote:
Originally Posted by Rocket_Rod View Post
Just factor $5k in maintenance and $50k in voluntary modifications.....

You speak to most people on this forum and the $4-5K you'd spend on preventive maintenance with Rod Bearings and actuators is a drop in the ocean compared to the voluntary mods they do to their cars to make them either go faster, sound louder or look better.

Quoted for the truth
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      11-09-2015, 05:34 PM   #13
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Quote:
Originally Posted by Rocket_Rod View Post
Just factor $5k in maintenance and $50k in voluntary modifications.....

You speak to most people on this forum and the $4-5K you'd spend on preventive maintenance with Rod Bearings and actuators is a drop in the ocean compared to the voluntary mods they do to their cars to make them either go faster, sound louder or look better.

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      11-10-2015, 05:20 PM   #14
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Quote:
Originally Posted by Ingenio View Post
Is there method behind the trunk-release-disable madness?
Handcuffs are effective
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      11-10-2015, 06:08 PM   #15
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I usually recommend not hitting stationary objects, or other moving objects.
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      11-14-2015, 11:18 PM   #16
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Isn't it only the pre 2010 models that have bearing issues. I thought I read that the bearing metals were changed after then.
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      11-15-2015, 05:24 AM   #17
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I know the rod bearing material was changed then (ie. No copper) but I don't think the clearance has changed and the lack of copper makes it harder to detect wear with an oil analysis...
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      11-19-2015, 02:31 AM   #18
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Quote:
Originally Posted by Ingenio View Post
I know the rod bearing material was changed then (ie. No copper) but I don't think the clearance has changed and the lack of copper makes it harder to detect wear with an oil analysis...
Yup, that is my understanding too. No one is immune
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      11-21-2015, 12:45 AM   #19
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It certainly appears the change has not made a difference. Newer cars also have reported failures.
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      11-21-2015, 06:44 AM   #20
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Let's not get bogged down with what is essentially a minor maintenance issue and let it spoil the enjoyment of an iconic car. It has few peirs so just forget about what might happen and what the fuel economy is,maintain it well and drive it to your ability. Years of enjoyment are guaranteed
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      11-21-2015, 06:48 AM   #21
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Well said Dave... I had my first track day last week and I'm still try wiping the smile off my face!
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      11-21-2015, 08:19 AM   #22
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I asked the original question because I intend to track with confidence. I'll do the rods when I buy for peace of mind.
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