BMW 328i E90 Engine Swap, N51 to N52

[@mcb1801]

Great work man! I have a 12' 325i e90 n52 for the last 10 years here in Brazil, i love the car...actually with 224k kms...keep going and enjoy the machine

[@rebuildrevival]

Thanks! N52’s are pretty solid. This one will be for sale but I’ll enjoy it until it sells!

[@J_Gold]

🔥🙌🔥🙌🔥 It’s Alivee! You really got down on the cleaning 💪 keep up the awesome work!

[@rebuildrevival]

It is! And thanks I appreciate it!!

[@YASKY3035]

Excellent work

[@rebuildrevival]

Thanks man appreciate the comments as always! 💪

[@MS-we4wi]

I don't comment much, but I watch all your BMW content. I like your style of making videos, keep it up👍 Btw, I'm from Europe and here both the air filter box and the filter itself has a different design. That part of the filter that can't be replaced without a whole new part was weird, mine doesn't have that. Still have to remove some t30's on the euro style also tho.

[@rebuildrevival]

Hey thanks, I appreciate that! What part of Europe just curious?

[@MS-we4wi]

@rebuildrevival Norway 🇧🇻

[@john-xz3ou]

WOW great work, loved watching and learning!

[@rebuildrevival]

Thanks appreciate it!

[@niklasschmitt]

Great video! Was a pleasure to watch :)

[@rebuildrevival]

Thanks appreciate that!

[@mintE60]

Nice work brother!

[@rebuildrevival]

Thanks man appreciate it!

[@tommcbride6610]

The RWD version has so much room to work compared to the Xdrive. Sure got lucky with that broken bolt.

[@rebuildrevival]

But mine has the X-drive emblems, that doesn’t make it all wheel drive 😂. Yes I did! I think the guy I bought it from had his impact on righty tighty not lefty loosey!

[@jorgep.2033]

Why did you swap them ? Is the n52 better ? Nice work

[@rebuildrevival]

The original N51 was toast and I got a great deal on this N52! If you were to do some tuning the N52 with the N51 intake is supposed to be a great combo also.

[@PartiBuoy]

It's easier to guess how to run the harness in the engine bay I did mine on the stand and ran into some confusion

[@rebuildrevival]

Sometimes when I’m labeling I’ll even write “left front passenger head” or “bottom of engine right” or sometimes I forget to label all together and have to hunt for 30 minutes just for one connector!

[@H-D33]

What the difference?

[@Garik.e60]

Amazing work. What are your plans with the old engine?

[@Garik.e60]

Never mind, I just saw your previous video. Poor thing was destroyed. 😢

[@rebuildrevival]

I’m going to pull the pan in a future video and probably the head. Maybe the block is good😂

[@ski69]

Did you notice the heat discoloration on the crank closest to the con rods? I would've changed the bearings at minimum.....while in there

[@rebuildrevival]

Hey, ya I did notice that and looked into it, I think it comes that way from the factory? I pulled one of the connecting rod caps but didn’t film it for some reason. They looked good though👍

[@ski69]

@@rebuildrevival excellent....as long as you confirmed....just thought I'd mention something...I've been known to be blind sometimes too...

[@reysabino1460]

Hey man great video! I have a question. So I did this exact swap and almost literally every single thing you did I did as well! However when I went to go start the car I get a no crank no start and I’m not sure why. Maybe you could give me some feedback? Also I get a transmission fault (the gear with an exclamation point) saying that the ECU can’t connect with the transmission. Any help would be awesome! Thanks in advance

[@rebuildrevival]

Hey thanks! Did you keep the original transmission? What type of scanner do you have?

[@Blakk28]

Do you need to code the ECU? or do you just drop the engine in and its all good?

[@rebuildrevival]

Hey, I didn’t do any programming or coding. Since I used the N51 intake manifold, exhaust, injectors/fuel rail and a few other sensors and components that the N52 didn’t have it works as it should. If you wanted to get the most performance out of the swap that may be a different story. I did reset the DME adaptions since there may be some differences in the air fuel mixture.

[@malcolmgodshield6837]

Hey I did a similar build except mine was I removed my 1.8 liter out of my 3 series e90 and got the n54 3.5 liter engine rebuilt it and installed it in the chassis of my e90 everything fit in and what not but I ran into an issue that I am trying to sort out. The issue I had was wiring especially since I wanted my car to be automatic as it was a manual 318i but I left the whole clutch assembly except front the brake master cylinder and ABS module just for esthetics and also if I ever wanna switch back to manual. Please tell me where can I get the resources to know what wiring I should do to convert it to automatic any help would be appreciated

[@rebuildrevival]

Hey, that might be tough as I believe the control module in the transmission needs to be paired to your CAS and DME. If you were able to pull the harness, DME, and CAS module out of the car where you got the engine/trans that might work. Without spending a bunch of time researching this, it is a little over my head! Search around on the forums for auto swapping a manual e90.