A good idea to change the idlers and tensioners, I think 60-75k is the right time.
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Originally posted by Cubieman View PostI am approaching 70K on my vehicle and just ordered the serpentine/AC belt as the AC belt isn't looking great and I don't know the last time either belt was replaced. I have owned the vehicle approximately 4 years and have never changed them.
Question: Assuming the pulleys/tensioners/idlers are original at 70k should I replace everything or would it be ok to just replace the belts? No squeaking etc.
2nd question: What brand(s) are generally acceptable on the pulleys/tensioners/idler/associated bolts?
I think I will likely just replace everything but just thought I would ask.
Thanks.
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Originally posted by Cubieman View PostI am approaching 70K on my vehicle and just ordered the serpentine/AC belt as the AC belt isn't looking great and I don't know the last time either belt was replaced. I have owned the vehicle approximately 4 years and have never changed them.
Question: Assuming the pulleys/tensioners/idlers are original at 70k should I replace everything or would it be ok to just replace the belts? No squeaking etc.
2nd question: What brand(s) are generally acceptable on the pulleys/tensioners/idler/associated bolts?
I think I will likely just replace everything but just thought I would ask.
Thanks.
INA is OE/OEM and fairly inexpensive.2003 Imola Red M3 w/ SMG
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Exhaust question.....
Is it possible to modify where O2 sensors are located such that you could run 1) OEM Euro-Catless headers and 2) OEM Euro Catted Section 1 without inducing a Check Engine Light?
Or would you have to look into coding to run those two OEM Euro parts in an otherwise stock car? 🙇
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Originally posted by ridebikes View PostExhaust question.....
Is it possible to modify where O2 sensors are located such that you could run 1) OEM Euro-Catless headers and 2) OEM Euro Catted Section 1 without inducing a Check Engine Light?
Or would you have to look into coding to run those two OEM Euro parts in an otherwise stock car? 🙇
Unfortunately I think the really good DIY with pics is no longer around.
Edit: Or you could add the Euro O2 harness and not have to cut anything, I would have down this had I known it was a possibility at the time. Unfortunately these are getting quite expensive, the one I linked may or may not be the Euro version, you'll have to check that out closer if going that route.
Last edited by Cubieman; 09-14-2021, 09:07 AM.2004 Silbergrau Metallic 6MT
Karbonius/OEM Snorkel/Flap/HTE Tuned
Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA
OE CSL Bootlid/AS SSK/BC Coils/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
RACP Plates/Vincebar/CMP/Turner RTAB/Beisan
2006 M6 Black Saphire SMG
Instagram
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Originally posted by ridebikes View PostExhaust question.....
Is it possible to modify where O2 sensors are located such that you could run 1) OEM Euro-Catless headers and 2) OEM Euro Catted Section 1 without inducing a Check Engine Light?
Or would you have to look into coding to run those two OEM Euro parts in an otherwise stock car? 🙇
Originally posted by Cubieman View Post
Yes, quite possible, you must cut the loom and route the Post-cat O2's/EGT sensor down the driver's side of the engine and they will 100% reach the Euro Sec. 1, many folks including myself have done this.
Unfortunately I think the really good DIY with pics is no longer around.
Edit: Or you could add the Euro O2 harness and not have to cut anything, I would have down this had I known it was a possibility at the time. Unfortunately these are getting quite expensive, the one I linked may or may not be the Euro version, you'll have to check that out closer if going that route.
https://www.ecstuning.com/b-genuine-...s/12517835524/
Here's a PDF I made of the m3f DIY.
Extending O2 wiring for Section 1 with Cats - BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80:X).pdf
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Originally posted by Cubieman View PostI am approaching 70K on my vehicle and just ordered the serpentine/AC belt as the AC belt isn't looking great and I don't know the last time either belt was replaced. I have owned the vehicle approximately 4 years and have never changed them.
Question: Assuming the pulleys/tensioners/idlers are original at 70k should I replace everything or would it be ok to just replace the belts? No squeaking etc.
2nd question: What brand(s) are generally acceptable on the pulleys/tensioners/idler/associated bolts?
I think I will likely just replace everything but just thought I would ask.
Thanks.
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Magic eraser. Think that shortens their lifespan though, makes them more prone to yellow later.
I, personally, hit them when I'm polishing the fender (with d/a machine). Then seal with ceramic or "ceramic" sio2.
If you decide to replace, don't be tempted by the cheap emblems on ebay.Last edited by Tbonem3; 09-15-2021, 12:45 PM.DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
/// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
More info: https://nam3forum.com/forums/forum/m...os-supersprint
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Originally posted by Tbonem3 View PostIf you decide to replace, don't be tempted by the cheap emblems on ebay.
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The size (thickness) of the "///" is wrong and the colors of the "///" is wrong as well. I think the "M" looks off too iirc. I'm not saying they look horrible, but if you are a detailed person at all, you will notice the difference. Probably depends on the person. It drove me nuts.DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
/// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
More info: https://nam3forum.com/forums/forum/m...os-supersprint
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Originally posted by Cubieman View Post
Yes, quite possible, you must cut the loom and route the Post-cat O2's/EGT sensor down the driver's side of the engine and they will 100% reach the Euro Sec. 1, many folks including myself have done this.
Unfortunately I think the really good DIY with pics is no longer around.
Edit: Or you could add the Euro O2 harness and not have to cut anything, I would have down this had I known it was a possibility at the time. Unfortunately these are getting quite expensive, the one I linked may or may not be the Euro version, you'll have to check that out closer if going that route.
https://www.ecstuning.com/b-genuine-...s/12517835524/
You can also get the plugs to sit nicely in the euro bracket for that nice OEM look.
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