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CastleBravo CastleBravo is offline
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Default Rod bearings 50k miles? - 12-28-2021, 05:48 AM

My local indy BMW shop is nagging me to look at my rod bearings, they say there is no sign of a problem, but they always need doing at some point...

Vehicle in question is a 2008 with only 50,000 miles on the factory motor.. surely the rod bearings don't need looking at?

I have the subframe dropped right now so if it's worth going in now is the time...thoughts?
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Default 12-28-2021, 12:52 PM

Are you sure they aren't confusing your car with the e9x M3 / S65

Honestly haven't seen or heard of this being an N54 issue, especially at 50k.

I'd find a new shop


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Default 12-28-2021, 01:01 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Are you sure they aren't confusing your car with the e9x M3 / S65

Honestly haven't seen or heard of this being an N54 issue, especially at 50k.

I'd find a new shop
Thanks Dave

This thought crossed my mind that they may be getting the N54 mixed up with the S65...

There is a bit of a lack of choice in local shops here, wish there was more experience locally.
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Default 12-28-2021, 02:02 PM

Quote:
Originally Posted by CastleBravo
Thanks Dave

This thought crossed my mind that they may be getting the N54 mixed up with the S65...

There is a bit of a lack of choice in local shops here, wish there was more experience locally.
I'd be almost 100% positive they think you have an M3..if that was the case I would have made the same suggestion - Rod bearings / connecting rods as it's a known failure point on the S65/ can happen very early on.

Where are you located?


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 12-28-2021, 02:24 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
I'd be almost 100% positive they think you have an M3..if that was the case I would have made the same suggestion - Rod bearings / connecting rods as it's a known failure point on the S65/ can happen very early on.

Where are you located?
I'm extra concerned if they are confusing a 135i with an M3 , but totally agree, seems like they have the wrong idea.

Based in New Zealand.
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Default 12-31-2021, 01:28 PM

Is it a M1? In that case I can see where the confusion lies. Donít need rod bearings done at 50,000 I ran 30psi from 50,000 to 150,000 and NEVER had any issues. Just keep good plus & coils, plenty of fuel and fresh oil


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Default 12-31-2021, 01:31 PM

Quote:
Originally Posted by 335xiboost
Is it a M1? In that case I can see where the confusion lies. Donít need rod bearings done at 50,000 I ran 30psi from 50,000 to 150,000 and NEVER had any issues. Just keep good plus & coils, plenty of fuel and fresh oil
Thanks for the input. No it's not an M1, regular 135i. They are the same engine is my understanding with slightly different intake / tune?

I'm certain they are confused.
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