What have you done with or to your M3 today?

[kolosy]

Originally Posted by smokinjoe64

Fully concur with spammysammich
Just replaced all injectors along with camshaft position sensors as PM at 76K mls.

what's the full paranoia procedure here? replace the fuel pump also? wasn't there some theory that it's the built in filter in the pump that breaks down and sends debris into the injectors?

[XKxRome0ox]

sounds like a good move to replace as preventive maintenance






https://www.urotuning.com/products/i...42258241618113
what about ignition coils?
I have a code for misfiring in cylinder 6

Do I buy this set of aftermarket? or pay up for the genuine BMW parts?

Is this the one where NGK made the genuine? But it's always out of stock?

[CamasM3e93]

Originally Posted by XKxRome0ox

https://www.fcpeuro.com/products/bmw...h-0280158164kt

is the fuel injector something to replace as preventive maintenance? or just wait until there's an issue?

Adding that the fuel filter is integrated on the suction side of the fuel pump. The only way to replace the filter is to replace the pump. The fcp website has a description on the website when you search the part. There’s some speculation that the filter media breaks down and showers particles to the injectors which leads to stuck open position, washout of the oil layer, cylinder failure, and enduring sadness. Replacing fuel injectors is prudent but in my opinion just step 1.

There’s also a couple aftermarket in line filter options which is a more typical approach. To do it over I would have kept my old fuel pump and added an in line filter

[spammysammich]

Originally Posted by kolosy

what's the full paranoia procedure here? replace the fuel pump also? wasn't there some theory that it's the built in filter in the pump that breaks down and sends debris into the injectors?

Probably? But I haven’t really worried about the pump and sending unit since my cars previous owner replaced the sending unit, injectors, low pressure fuel sensor and inspected the pump motor just prior to my purchase.

[spammysammich]

Originally Posted by XKxRome0ox

sounds like a good move to replace as preventive maintenance






https://www.urotuning.com/products/i...42258241618113
what about ignition coils?
I have a code for misfiring in cylinder 6

Do I buy this set of aftermarket?

Not only no but hell no. Move the coil to a different cylinder to see if it moves. If it does replace with BMW only. All aftermarket coils are now junk for this car. It’s been documented here. Search.

[smokinjoe64]

Originally Posted by kolosy

what's the full paranoia procedure here? replace the fuel pump also? wasn't there some theory that it's the built in filter in the pump that breaks down and sends debris into the injectors?

Mmmm kolosy, negative on "paranoia question" ...

To clarify, at least for my Whip, experienced combination of indicators and facts over miles, which drove root cause investigation and choice to PM select items; findings:

• Plowed through O2 sensors [3 primary sets in ~11K mls]
• Decreasing performance [ruff idle etc]
• Emissions, Lamda & other bank 2 issues/codes
• Cylinder 5 FI - no scoring, compression good, FI condition unsatisfactory compared to other FIs in bank 2

Not advocating 'random' part replacements without reasons, or mitigating 'known issues' [i.e. RBs].
However, smart, selective PM practice is nothing less than good practice.

I'm original owner, plan to retain and prevent more expensive and/or catastrophic events.
Simple as that...

[smokinjoe64]

Originally Posted by XKxRome0ox

sounds like a good move to replace as preventive maintenance
what about ignition coils?
I have a code for misfiring in cylinder 6

Do I buy this set of aftermarket? or pay up for the genuine BMW parts?

Is this the one where NGK made the genuine? But it's always out of stock?

Originally Posted by spammysammich

Not only no but hell no. Move the coil to a different cylinder to see if it moves. If it does replace with BMW only. All aftermarket coils are now junk for this car. It’s been documented here. Search.

XKxRome0ox IMO, replacing 'key' components with OE manufacturers that supply BMW is a reasonable trusted alternative.

Lifetime Replacement Programs are a means to 'hedge' against expensive part repurchases. FCP and others offer a smart option for key replacements.

For example, Bosch, NGK make several parts for BMW. That said, take care to ensure ordering 'authentic' OE parts from reputable suppliers.
Replaced ICs with NGK w/o any issue circa 2020

>> Disclaimer - As spammysammich noted there's been documented controversy re NGK ICs...proper compatibility/PNs, etc, blah-blah

[MaximusB]

My buddy had a little fun with a recent photoshoot

[PiZauL]

ECS v5 rotors and akenbono ceramic pads up front and a brake flush. Of course every rotor screw was seized and stripped. Was the hardest part of the job tbh, thankful for a helping hand as I would have rage quit.

[0-60Motorsports]

Originally Posted by PiZauL

ECS v5 rotors and akenbono ceramic pads up front and a brake flush. Of course every rotor screw was seized and stripped. Was the hardest part of the job tbh, thankful for a helping hand as I would have rage quit.

Looks great

[M3some118]

I told her how much I loved her