Dumb Question Thread - No Flaming Allowed

[Slideways]

Glad they seem to be fairly reliable as I haven't found many threads on people having issues online. It's pretty scary as I noticed it's pretty expensive through FCP, but a little bit cheaper through Schmiedmann.

My guess is the S65/85 are more prone to failure due to their location inside the V of the engine where things can get pretty hot. Either that or the internal components are different from the S54 throttle actuator. For the S54, I would not hesitate to replace with a used, good working unit since they are pretty reliable and easy to access.

[ugaexploder]

Wondered about this as well, you hear about it often on E9x M3's/E6x M5/6's.

Glad they seem to be fairly reliable as I haven't found many threads on people having issues online. It's pretty scary as I noticed it's pretty expensive through FCP, but a little bit cheaper through Schmiedmann.

[Cubieman]

Has anyone had their throttle body actuator fail on them?

Wondered about this as well, you hear about it often on E9x M3's/E6x M5/6's.

[SQ13]

That's exactly how my system is operating, except I'm on 10W-60, thanks!

I haven’t noticed any loss in cooling after switching from CSF to new OE (street driving only). What was noticeable was the significant weight difference.

[ugaexploder]

Has anyone had their throttle body actuator fail on them?

[PSUEng]

I recall on the old m3f that members essentially degraded their oil cooling effectiveness with a CSF oil cooler, and consensus was to keep OE or replace with new OE oil cooler.
My oil temps creep up similarly in those conditions, maybe 1-2 needle-widths past the midpoint. When I get moving it drops to 1-2 needle-widths below the middle. I run 0w-40 and noticed the oil temps fluctuate a bit more as compared to when I ran 10w-60.

That's exactly how my system is operating, except I'm on 10W-60, thanks!

[Will]

Well, today, 100F outside and I notice my oil temps like to creep up a little past the middle (12 o'clock) in traffic. Coolant temp is good, new fan clutch, everything is working fine as far as I can tell. I was checking out the CSF oil cooler and wondering, is this a good upgrade for a non-track car or a waste of money? I watched a few videos, can't really tell if fitment is direct swap with the original or modifications are necessary. I would think lower oil temps is good no matter what.

I recall on the old m3f that members essentially degraded their oil cooling effectiveness with a CSF oil cooler, and consensus was to keep OE or replace with new OE oil cooler.
My oil temps creep up similarly in those conditions, maybe 1-2 needle-widths past the midpoint. When I get moving it drops to 1-2 needle-widths below the middle. I run 0w-40 and noticed the oil temps fluctuate a bit more as compared to when I ran 10w-60.

[PSUEng]

Well, today, 100F outside and I notice my oil temps like to creep up a little past the middle (12 o'clock) in traffic. Coolant temp is good, new fan clutch, everything is working fine as far as I can tell. I was checking out the CSF oil cooler and wondering, is this a good upgrade for a non-track car or a waste of money? I watched a few videos, can't really tell if fitment is direct swap with the original or modifications are necessary. I would think lower oil temps is good no matter what.

[sbay]

That's one way to do it.

Other option is to use WinKFP: https://www.cslregister.com/forum/sh...ad.php?t=12750

First post in this thread has all the variants and their respective regions. Just make sure to look through all the tables and match up the correct ZB num. Can get confusing pretty easily: https://nam3forum.com/forums/forum/s...me-information

Going to move my reply to the coding section actually.

[ugaexploder]

Could someone help me understand what the TCU (Telematics Control Unit) with the multiple part numbers is used for?

[sbay]

That's one way to do it.

Other option is to use WinKFP: https://www.cslregister.com/forum/sh...ad.php?t=12750

First post in this thread has all the variants and their respective regions. Just make sure to look through all the tables and match up the correct ZB num. Can get confusing pretty easily: https://nam3forum.com/forums/forum/s...me-information

Thank you for this! Will go looking through this now

[heinzboehmer]

More confused about the flashing part, couldn’t find a DIY.

https://github.com/saildot4k/MSS54-XDFs/tree/master/Unmodified%20BIN%20Dumps%20-%20Full

Basically just use a Euro bin from here that matches my ECU/spec and flash it using MSS Flasher or BMW flash?

*hyperlink doesn’t work but copy/paste of the url does*

That's one way to do it.

Other option is to use WinKFP: https://www.cslregister.com/forum/sh...ad.php?t=12750

First post in this thread has all the variants and their respective regions. Just make sure to look through all the tables and match up the correct ZB num. Can get confusing pretty easily: https://nam3forum.com/forums/forum/s...me-information

[sbay]

I don't follow, one has nowt to do with the other. Just flash her.

More confused about the flashing part, couldn’t find a DIY.

https://github.com/saildot4k/MSS54-XDFs/tree/master/Unmodified%20BIN%20Dumps%20-%20Full

Basically just use a Euro bin from here that matches my ECU/spec and flash it using MSS Flasher or BMW flash?

*hyperlink doesn’t work but copy/paste of the url does*

[Tbonem3]

If I install Euro cats and headers with everything else stock, how do I go about flashing the factory Euro tune?

I don't follow, one has nowt to do with the other. Just flash her.

[sbay]

If I install Euro cats and headers with everything else stock, how do I go about flashing the factory Euro tune?