JB4tech.com - International Turbo Tuning Discussion
gyhujbox5 gyhujbox5 is offline
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Join Date: Sep 2020
Car: renualt
Default How unreliable is the N63, from owners? - 09-02-2021, 04:45 AM

I really like the 550 and am considering one but have heard the horror stories about the N63. That said though, I have an N54 that I've basically just done proper maintenance to and have had no issues with. Going on 140k miles on original turbos tuned for the last 80k miles or so. I've had to replace the hpfp once and aside from that its been the things that fail on any car like the alternator and water pump. So my question is, is the N63 like the N54 where some people have a terrible time but for the most part owners dont have a lot of issues as long as they maintain it? Or is it a ticking time time bomb? routerlogin 192.168.l.l

Last edited by gyhujbox5; 09-05-2021 at 04:43 AM..
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Mike_L Mike_L is offline
Posts: 2,131
Join Date: Jun 2014
Car: 2022 X3 M40i
Default 09-02-2021, 04:17 PM

It’s depends on the version. The early ones are trouble prone. The TUs drink oil. The TU2 and TU3 seem to be no more trouble prone than anything else, just way more expensive to fix when they fail.

Mike Levy
2022 Black Sapphire X3 M40i
2010 Glacier Pearl Nissan Murano SL
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BMRDude BMRDude is offline
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Posts: 78
Join Date: Apr 2014
Car: 2012 550ix
Default 09-02-2021, 08:41 PM

I have had mine since new, early 2012. Been running Dinan Stage 2 since new and JB4 piggybacked on top since 2015, running 20 psi for 6 years.

Only few problems. Replaced turbo oil lines under warranty and Y vacuum connnection on intake. No oil consumption problems but I have changed the oil every 5-8,000 kms unlike nearly everyone else since in those early days, warranty oil changes by the dealer were only recommended every 22,000 Kms!!! Also used true synthetic Amsoil or Mobil.

Been a great car.
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Opac68 Opac68 is offline
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Join Date: Aug 2021
Car: 2013 BMW 550i M Sport
Default 09-03-2021, 11:47 AM

I have a 2013 550i the original engine had the CCP done to it but still ended up having to change out the engine. Prior to changing the engine I had to add oil constantly. After replacing the engine havent had oil consumption problems, but i am still having 02 sensor issues even after changing all of them. So its been up and down but the car is a beast to drive.
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kaybykats kaybykats is offline
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Join Date: Dec 2021
Car: honda
Default 12-27-2021, 08:17 AM

My question are:

1 Are there any signs that will tell you that the failure is coming soon?

Right now there do not seem to be nay signs. No smoke, runs great.

2 Is there anyway for me to check what work was done when they did the CCP?

3. What other things are expected? I can handle a decent amount of work myself. I fixed my turbo wastegates so I'm comfortable with working on it.

4. Anyone in AZ have gotten their Valve stem seals replaced for a decent price?showbox speed test
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zse8h zse8h is offline
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Posts: 89
Join Date: Apr 2021
Car: M5501
Default 12-29-2021, 01:50 AM

Check this out folks. My 2021 M550 can defiantly handle the power upgrades. Putting in some catch cans this weekend. Trying to keep things clean.

BMW N63 vs N63TU vs N63TU2 vs N63TU3 - Which Is Best?

2021 M550i
Bernina Grey Amber Effect
BMS Elite Intakes
GPower Axel Back High Flow Sport Silencer
Active Autowerke High Flow DwnPips
HardRace rear sway bar and Dinan lowering springs
Barracuda Racing Wheels (Inferno)
JB4 Map 1

2009 335xi
Completely Moded out
Beat corvettes - they were pissed
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phaser phaser is offline
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Posts: 86
Join Date: Oct 2020
Car: X5 M50i
Default 01-02-2022, 06:46 AM

2021 X5 M50i which has been on the road for 14 months and 8000 miles with no problems. Fantastic V8 engine which can run a 5200 lb vehicle to 60 in under 4 seconds.
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