F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > Major Failure Rate
European Auto Source (EAS)
Post Reply
 
Thread Tools Search this Thread
      12-29-2018, 07:51 PM   #1
kdog_x
Private First Class
70
Rep
153
Posts

Drives: 14 328d
Join Date: Nov 2016
Location: Chicago

iTrader: (0)

Anyone had an engine / trans failure on their 328d's? I know the old N47 had timing chain issues, but those seem to have been resolved with the 2012+ model year.

I know the major issues that run $5,000+ seem to be transfer case, EGR, and fuel pump, but haven't heard any engine / trans horror stories. Just curious if anyone has had one fail yet?

Rocking 105k now, Hoping I can roll it out to 250k miles... Planning a HPFP around 120k and expecting a transfer case somewhere between 150-200k with a little luck, but hoping that's the limit on major items. Just wondering if the N47 / 8AT will hold strong that long
Appreciate 0
      12-30-2018, 12:27 PM   #2
Enabled
Second Lieutenant
34
Rep
219
Posts

Drives: 328xd Wagon
Join Date: Jun 2018
Location: Houston

iTrader: (0)

Well the ZF 8HP transmission is used on a very wide range of BMWs and they have been very reliable. All I ever came across are some minor reports of solenoids needing replacement.


Engine wise, the latest version N47 like in ours seems to be way more reliable (for major things) than the gas N20 with all its timing chain issues.

Just keep on using very high quality oil, and change it 10k miles or slightly earlier. Avoid auto start stop.



88k miles here, no major failures. 1 injector swapped out at 75k. This is a long term keeper for me.
__________________
-2014 328d Wagon, self-tuned, 245hp/400ft-lbs.
Others
-E36 328is ~210-220whp: Lots of Mods. 2000 Z3 Roady. 2003 VW Jetta TDI Manual 47-50mpg Modded. S52 Estoril Z3M Coupe.
Appreciate 0
      12-31-2018, 08:07 AM   #3
kdog_x
Private First Class
70
Rep
153
Posts

Drives: 14 328d
Join Date: Nov 2016
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Enabled View Post
Well the ZF 8HP transmission is used on a very wide range of BMWs and they have been very reliable. All I ever came across are some minor reports of solenoids needing replacement.


Engine wise, the latest version N47 like in ours seems to be way more reliable (for major things) than the gas N20 with all its timing chain issues.

Just keep on using very high quality oil, and change it 10k miles or slightly earlier. Avoid auto start stop.



88k miles here, no major failures. 1 injector swapped out at 75k. This is a long term keeper for me.
That's good to hear. I can't stand the auto start / stop so definitely no issue on that one. I tried looking into common repairs for the 8HP45, but I didn't find too much... I guess that's a good thing!

I see a mechatronics exchange is about $2k from the dealer (part only). That seems to fix everything short of an internal mechanical issue which would require a rebuild or replacement. I would think there would be a ZF branded solenoid kit to rebuild the mech unit, but the only online source on the 8HP45 seems to be unbranded solenoids from China... not sure I'd trust that. I'll keep changing the fluid every 60k and hope I never find out lol.
Appreciate 0
      01-15-2019, 02:37 PM   #4
wicked510
New Member
0
Rep
8
Posts

Drives: 328d xDrive
Join Date: Nov 2018
Location: Berkeley, CA

iTrader: (0)

Who else coded start-stop out? I hated that. No major failures here either.
Appreciate 0
      01-15-2019, 08:32 PM   #5
328dX
David
328dX's Avatar
United_States
28
Rep
153
Posts

Drives: 2015 328dX wagon
Join Date: Nov 2018
Location: Temecula, CA

iTrader: (0)

Quote:
Originally Posted by wicked510 View Post
Who else coded start-stop out? I hated that. No major failures here either.
Why code it out when you can just turn it off?
Appreciate 0
      01-16-2019, 07:28 PM   #6
kdog_x
Private First Class
70
Rep
153
Posts

Drives: 14 328d
Join Date: Nov 2016
Location: Chicago

iTrader: (0)

Thats what I was thinking Just push the little button over the start button and start-stop goes away until you push it again
Appreciate 0
      01-16-2019, 08:00 PM   #7
Enabled
Second Lieutenant
34
Rep
219
Posts

Drives: 328xd Wagon
Join Date: Jun 2018
Location: Houston

iTrader: (0)

I have coded mine to be off by default in all modes, including ECOpro, because $20 or less of fuel savings is not worth it when you have to replace a starter or timing chain snaps.
__________________
-2014 328d Wagon, self-tuned, 245hp/400ft-lbs.
Others
-E36 328is ~210-220whp: Lots of Mods. 2000 Z3 Roady. 2003 VW Jetta TDI Manual 47-50mpg Modded. S52 Estoril Z3M Coupe.
Appreciate 0
      01-16-2019, 08:02 PM   #8
kdog_x
Private First Class
70
Rep
153
Posts

Drives: 14 328d
Join Date: Nov 2016
Location: Chicago

iTrader: (0)

It annoys the heck out of me, so if I accidently turn it on, its only on for one stop!
Appreciate 0
      01-17-2019, 12:40 PM   #9
Enabled
Second Lieutenant
34
Rep
219
Posts

Drives: 328xd Wagon
Join Date: Jun 2018
Location: Houston

iTrader: (0)

Quote:
Originally Posted by kdog_x View Post
It annoys the heck out of me, so if I accidently turn it on, its only on for one stop!
FEM:
TCM_MSA_ECO_MODE - nicht_aktiv

This will always default the ecopro auto start stop to not active when you switch to ecopro.
You can willingly turn it on, if you desire, by the button.
__________________
-2014 328d Wagon, self-tuned, 245hp/400ft-lbs.
Others
-E36 328is ~210-220whp: Lots of Mods. 2000 Z3 Roady. 2003 VW Jetta TDI Manual 47-50mpg Modded. S52 Estoril Z3M Coupe.
Appreciate 0
      01-18-2019, 04:17 PM   #10
cross90
Private
cross90's Avatar
United Kingdom
19
Rep
75
Posts

Drives: F31, 330d M-Sport
Join Date: May 2017
Location: UK

iTrader: (0)

Why not code it out, saving you having to click it off everytime you get in and out of the car ?

It was one of the first things I looked to code when getting to grips with Esys

Quote:
Originally Posted by dieseldave View Post
Why code it out when you can just turn it off?
Appreciate 0
      01-18-2019, 05:37 PM   #11
328dX
David
328dX's Avatar
United_States
28
Rep
153
Posts

Drives: 2015 328dX wagon
Join Date: Nov 2018
Location: Temecula, CA

iTrader: (0)

Quote:
Originally Posted by cross90 View Post
Why not code it out, saving you having to click it off everytime you get in and out of the car ?

It was one of the first things I looked to code when getting to grips with Esys
I don't have to do that. If I turn it off it's off forever until I turn it back on.

My alfa romeo on the other hand i have to turn off every time, but not my bmw
Appreciate 0
      01-18-2019, 06:13 PM   #12
cross90
Private
cross90's Avatar
United Kingdom
19
Rep
75
Posts

Drives: F31, 330d M-Sport
Join Date: May 2017
Location: UK

iTrader: (0)

Ah really ? Both mine and my partners cars default back to 'On' once you restart the car.

Maybe a UK thing to fit into some emissions rules.. ? I'm unsure

Quote:
Originally Posted by dieseldave View Post
I don't have to do that. If I turn it off it's off forever until I turn it back on.

My alfa romeo on the other hand i have to turn off every time, but not my bmw
Appreciate 0
      01-18-2019, 06:34 PM   #13
Blm001
New Member
United_States
0
Rep
6
Posts

Drives: 35i N55 FBO JB4
Join Date: Jan 2019
Location: Ohio

iTrader: (0)

Code it out
Appreciate 0
      01-18-2019, 07:38 PM   #14
328dX
David
328dX's Avatar
United_States
28
Rep
153
Posts

Drives: 2015 328dX wagon
Join Date: Nov 2018
Location: Temecula, CA

iTrader: (0)

Quote:
Originally Posted by cross90 View Post
Ah really ? Both mine and my partners cars default back to 'On' once you restart the car.

Maybe a UK thing to fit into some emissions rules.. ? I'm unsure
Yeah you'd think we'd have the emissions rule but yeah every bmw I've been into it's permanent off until you turn it back on yourself.
Appreciate 0
      01-18-2019, 10:26 PM   #15
Enabled
Second Lieutenant
34
Rep
219
Posts

Drives: 328xd Wagon
Join Date: Jun 2018
Location: Houston

iTrader: (0)

Quote:
Originally Posted by dieseldave View Post
Yeah you'd think we'd have the emissions rule but yeah every bmw I've been into it's permanent off until you turn it back on yourself.
Try ecopro and you'll see.
__________________
-2014 328d Wagon, self-tuned, 245hp/400ft-lbs.
Others
-E36 328is ~210-220whp: Lots of Mods. 2000 Z3 Roady. 2003 VW Jetta TDI Manual 47-50mpg Modded. S52 Estoril Z3M Coupe.
Appreciate 0
      01-22-2019, 08:41 AM   #16
kdog_x
Private First Class
70
Rep
153
Posts

Drives: 14 328d
Join Date: Nov 2016
Location: Chicago

iTrader: (0)

Tried this the other day. Mine actually stays off in Eco Pro as well, unless you push the button to turn it on. The air conditioner on the other hand... I'm not sure what causes that to come on, sometimes it's on when the car is started other times it retains it's memory from where it was set previously.
Appreciate 0
      01-22-2019, 10:41 AM   #17
Enabled
Second Lieutenant
34
Rep
219
Posts

Drives: 328xd Wagon
Join Date: Jun 2018
Location: Houston

iTrader: (0)

What i-level is your car on?
__________________
-2014 328d Wagon, self-tuned, 245hp/400ft-lbs.
Others
-E36 328is ~210-220whp: Lots of Mods. 2000 Z3 Roady. 2003 VW Jetta TDI Manual 47-50mpg Modded. S52 Estoril Z3M Coupe.
Appreciate 0
      01-22-2019, 11:26 AM   #18
kdog_x
Private First Class
70
Rep
153
Posts

Drives: 14 328d
Join Date: Nov 2016
Location: Chicago

iTrader: (0)

The car is a 14. I think the i-level was from late 2013, I was going to update it but then I got a tune. Can't really update it now without over writing the tune
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 05:27 PM.




f30post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST