New n54 injectors are "wet" in package

invariant · 12-03-2023, 08:14 PM

Hope someone who bought new injectors in the past can chime in.

I just received my order of 3 new injectors, and they are covered in some oily residue. doesn't smell like fuel, more like some solvent (?)

The seller is a dealership in NE that has online sales operation.
Did I get something shady remanufactured instead of new?

whyzee125 · 12-04-2023, 12:15 AM

Post some pics to show the numbers on the side but my guess is they come with some lube for the inner seals or to protect the surface. If you bought from an actual BMW dealership I can't imagine you got scammed unless someone sent in some crappy ones for a 'return' and it wasn't caught.

HondaRC51 · 12-04-2023, 07:44 AM

Usually companies will spray bare metal parts with Cosmoline to protect it from corrosion during shipping or sitting in a musty warehouse for long periods of time. Just clean it with some brake cleaner and it'll be fine.

invariant · 12-04-2023, 11:08 AM

Quote:

Originally Posted by whyzee125

Post some pics to show the numbers on the side but my guess is they come with some lube for the inner seals or to protect the surface. If you bought from an actual BMW dealership I can't imagine you got scammed unless someone sent in some crappy ones for a 'return' and it wasn't caught.

Here are a couple of pictures.
Do the numbers on the front or back have anything to do with the production date?

BRG_N54 · 12-04-2023, 02:15 PM

Quote:

Originally Posted by invariant

Do the numbers on the front or back have anything to do with the production date?

Just guessing here, but I think the vertical numbers are the production date:

230419= 19th day of the 04 month of the 23 year

That would be April 19, 2023, a fine vintage!

invariant · 12-04-2023, 03:10 PM

Quote:

Originally Posted by BRG_N54

Just guessing here, but I think the vertical numbers are the production date:
230419= 19th day of the 04 month of the 23 year
That would be April 19, 2023, a fine vintage!

That's what my guess was too. I currently have -08 injectors, which were installed in October 2010, and they all have 10xxyy numbers there (xx is in the range of 04-08, so makes sense).

whyzee125 · 12-04-2023, 11:23 PM

Agree with the guess on the numbers and their correlation to the date. I'll try to look at mine tomorrow and see if that matches up to the time they were installed.

I was mainly interested in the pics bc most 'reman' injectors have fishy looking codes/index numbers. Yours look legit.

Agreed with the mention of cosmoline too, very common on a lot of bare metal parts. I think you're good to go.

12-03-2023, 08:14 PM	#1
invariant Enlisted Member 4 Rep 41 Posts Drives: E90 335i 6MT Join Date: May 2008 Location: San Diego, CA iTrader: (0)	New n54 injectors are "wet" in package Hope someone who bought new injectors in the past can chime in. I just received my order of 3 new injectors, and they are covered in some oily residue. doesn't smell like fuel, more like some solvent (?) The seller is a dealership in NE that has online sales operation. Did I get something shady remanufactured instead of new?
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12-04-2023, 12:15 AM	#2
whyzee125 Brigadier General 1691 Rep 3,652 Posts Drives: Dinan stage 2 335i Join Date: Jul 2014 Location: Chattanooga Tn iTrader: (0)	Post some pics to show the numbers on the side but my guess is they come with some lube for the inner seals or to protect the surface. If you bought from an actual BMW dealership I can't imagine you got scammed unless someone sent in some crappy ones for a 'return' and it wasn't caught.
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12-04-2023, 07:44 AM	#3
HondaRC51 Private First Class 251 Rep 122 Posts Drives: 2009 E92 335xi Join Date: Oct 2022 Location: Maryland iTrader: (0) Garage List 2009 335xi E92 [0.00] 2016 BMW S1000RR [10.00]	Usually companies will spray bare metal parts with Cosmoline to protect it from corrosion during shipping or sitting in a musty warehouse for long periods of time. Just clean it with some brake cleaner and it'll be fine.
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12-04-2023, 11:23 PM	#7
whyzee125 Brigadier General 1691 Rep 3,652 Posts Drives: Dinan stage 2 335i Join Date: Jul 2014 Location: Chattanooga Tn iTrader: (0)	Agree with the guess on the numbers and their correlation to the date. I'll try to look at mine tomorrow and see if that matches up to the time they were installed. I was mainly interested in the pics bc most 'reman' injectors have fishy looking codes/index numbers. Yours look legit. Agreed with the mention of cosmoline too, very common on a lot of bare metal parts. I think you're good to go.
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