BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      10-15-2015, 09:30 AM   #1
Suhb
First Lieutenant
Suhb's Avatar
80
Rep
320
Posts

Drives: 2010 128i Coupe 6-Speed
Join Date: Dec 2012
Location: PA

iTrader: (2)

DISA Upgrade/Repair

Hey guys. I'm sure everyone knows about DISA valves failing in the older engines but has anyone run into DISA problems on the n52 engine yet? Apparently the DISA motors for the N52 can show problems as well. Has anyone has done either of these or plans to do a repair/upgrade in the future? the three stage intake manifold is on my mod list and I'm wondering if it's wiser to just do the upgrade/repair before installing it. Thoughts?

http://www.bimmerfest.com/forums/sho...d.php?t=792912

http://vanos-bmw.com/repair-kit-for-...-n52-n52n-n52k
Appreciate 0
      10-15-2015, 07:17 PM   #2
Blacksport
Second Lieutenant
Blacksport's Avatar
48
Rep
246
Posts

Drives: 2013 128i
Join Date: Oct 2013
Location: Ft Lauderdale

iTrader: (0)

I bought all new parts when I did the Stage 3...if you buy a used manifold, get new valves.

I've read about the problems, but I believe there's many, many more cars that never had DISA problems...assuming I keep the car long enough, I'll probably replace the valves after 20k miles or 2-3 years...they're not that expensive.
__________________
'13 128i 6sp, '19 Cherokee Ltd 3.2, '17 Ducati SuperSport S Gone But Not Forgotten: 74 Z28, 77 Datsun 280Z (1st 5sp in US), 92 Nissan 300ZTT, 94 MB SL600 V12, 01 M Roadster, 66 Yamaha TwinJet 100, 70 Suzuki X6 Hustler Race: GP/FP Spitfire SCCA, Merlyn FF SCCA, Mazda RX7 IMSA GTU, Yamaha FZR 400 AMA.
Appreciate 0
      10-16-2015, 01:11 AM   #3
honestzergtea
Enlisted Member
8
Rep
34
Posts

Drives: '09 E82
Join Date: Sep 2015
Location: buffalo

iTrader: (1)

61k on my N51 and the DISA valves haven't given me any problems yet.
Appreciate 0
      05-17-2016, 11:08 AM   #4
gratuitous
New Member
gratuitous's Avatar
United_States
5
Rep
11
Posts

Drives: 2011 BMW 128i M-Sport
Join Date: May 2016
Location: Colorado, USA

iTrader: (0)

I have a 2011 128i with over 116K, and I'm consistently seeing a 002AAC code now. I'm going to start by replacing the upper DISA, since I don't have to remove the intake manifold for that, then replace the lower if that doesn't do the trick. It's too bad that the DISA valves can't be rebuilt for the N52K.
Appreciate 0
      05-17-2016, 11:07 PM   #5
gratuitous
New Member
gratuitous's Avatar
United_States
5
Rep
11
Posts

Drives: 2011 BMW 128i M-Sport
Join Date: May 2016
Location: Colorado, USA

iTrader: (0)

Wow, www.i6automotive.co.uk does manufacture a DISA repair kit. rhydtuned makes the rebuild look easy in this video:
Appreciate 0
      05-23-2016, 05:51 PM   #6
TheSt|G
Resident Tamed Racing Driver
TheSt|G's Avatar
United_States
253
Rep
4,736
Posts

Drives: 911, 130is, E39 M5, E36 M3
Join Date: Mar 2008
Location: Outside Philly

iTrader: (2)

Mine failed around 70k miles combined on manifold plus my car. Was the last thing I repaired before I sold it.
__________________
2005 E46 M3 Interlagos/Cinnamon with Sunroof Delete
Appreciate 0
      05-23-2016, 07:02 PM   #7
Suprgnat
German cars and French tires.
Suprgnat's Avatar
United_States
861
Rep
1,718
Posts

Drives: 2013 128i LMB 6MT ZMP Slicktop
Join Date: Jan 2013
Location: California

iTrader: (7)

Garage List
Quote:
Originally Posted by TheSt|G View Post
Mine failed around 70k miles combined on manifold plus my car. Was the last thing I repaired before I sold it.
I'm confused. You sold the 1er?
__________________
Inertia is the enemy.

Appreciate 0
      05-24-2016, 06:34 AM   #8
TheSt|G
Resident Tamed Racing Driver
TheSt|G's Avatar
United_States
253
Rep
4,736
Posts

Drives: 911, 130is, E39 M5, E36 M3
Join Date: Mar 2008
Location: Outside Philly

iTrader: (2)

Quote:
Originally Posted by Suprgnat View Post
I'm confused. You sold the 1er?
Yes.

Bought an Interlagos on Cinnamon E46 M3 that I'm manual swapping next week.
__________________
2005 E46 M3 Interlagos/Cinnamon with Sunroof Delete
Appreciate 2
      05-24-2016, 03:15 PM   #9
chris82
Brigadier General
chris82's Avatar
United_States
515
Rep
3,424
Posts

Drives: 128i
Join Date: Aug 2012
Location: NY NY

iTrader: (6)

Garage List
2008 BMW 128i  [5.00]
Quote:
Originally Posted by TheSt|G View Post
Yes.

Bought an Interlagos on Cinnamon E46 M3 that I'm manual swapping next week.
Nice! but you had an awesome 1er! Will be missed here
Appreciate 0
      05-24-2016, 07:27 PM   #10
Fume
First Lieutenant
45
Rep
382
Posts

Drives: '19 Porsche 718 Cayman GTS
Join Date: Jul 2013
Location: Seattle

iTrader: (1)

Quote:
Originally Posted by TheSt|G View Post
Yes.

Bought an Interlagos on Cinnamon E46 M3 that I'm manual swapping next week.
Nice on getting the E46 M3. Sad that you sold your 128i though. Your DIY threads were always very informative.
__________________

New Car: 2019 Porsche 718 Cayman GTS | Stock for now
Old Car: 2013 BMW 128i | 6MT | BMW Performance Grills | CDV Delete | SSK | Performance Exhaust | M3 RSFB | TCKR DA

Appreciate 0
      06-03-2016, 03:58 PM   #11
TheSt|G
Resident Tamed Racing Driver
TheSt|G's Avatar
United_States
253
Rep
4,736
Posts

Drives: 911, 130is, E39 M5, E36 M3
Join Date: Mar 2008
Location: Outside Philly

iTrader: (2)

Quote:
Originally Posted by chris82 View Post
Nice! but you had an awesome 1er! Will be missed here
Quote:
Originally Posted by Fume View Post
Nice on getting the E46 M3. Sad that you sold your 128i though. Your DIY threads were always very informative.
Thanks gents. Ultimately, I justed wanted a bit more performance.

Did the VANOS rebuild and lockdown on the M3 last month. It's actually a pretty easy/fun car to wrench on if you get a chance.
__________________
2005 E46 M3 Interlagos/Cinnamon with Sunroof Delete
Appreciate 1
      06-07-2016, 09:11 AM   #12
gratuitous
New Member
gratuitous's Avatar
United_States
5
Rep
11
Posts

Drives: 2011 BMW 128i M-Sport
Join Date: May 2016
Location: Colorado, USA

iTrader: (0)

Hey Guys,

I replaced the upper DISA and the 002AA8 fault code is gone. The car feels like it has more low RPM power, and runs slightly smoother. However, I'm still regularly seeing the 002AAC (variable intake manifold, self diagnosis) fault message.

Should I pull the intake manifold and replace the lower DISA, or should I ignore this fault code?

Thanks!
Grat
Appreciate 0
      06-11-2016, 06:36 AM   #13
gratuitous
New Member
gratuitous's Avatar
United_States
5
Rep
11
Posts

Drives: 2011 BMW 128i M-Sport
Join Date: May 2016
Location: Colorado, USA

iTrader: (0)

Hey Guys,

I'll try this one again. Has anyone out there replaced their lower DISA? Was that the only way to make all faults go away? I'll rip out that intake manifold if I must, but I was hoping to get some guidance from you all.

Summary: DISA upper replaced after seeing 002AAC and 002AA8 fault codes. Now just 002AAC remains consistently.

Thanks!
Grat
Appreciate 0
      06-11-2016, 08:44 AM   #14
Bimmer-Bob
!
Bimmer-Bob's Avatar
United_States
502
Rep
3,201
Posts

Drives: 2010 128i
Join Date: Feb 2010
Location: Anacortes, WA

iTrader: (4)

Garage List
Quote:
Originally Posted by gratuitous View Post
Hey Guys,

I'll try this one again. Has anyone out there replaced their lower DISA? Was that the only way to make all faults go away? I'll rip out that intake manifold if I must, but I was hoping to get some guidance from you all.

Summary: DISA upper replaced after seeing 002AAC and 002AA8 fault codes. Now just 002AAC remains consistently.

Thanks!
Grat
You might have more luck over at E90Post (in the N52) section, as you'll reach a lot more people over there. I've not heard of any people over on this side having to replace there DISAs yet (other than in this thread).

That's interesting that you got a couple of fault codes. I was wondering how easy the issue would be to diagnose if it occurred. Did you get a CEL or SES light, or did you just notice a downgrade in performance, and then check for codes? Ho noticeable was the degradation in performance?

FWIW, if I were you, I would just go ahead and change the second DISA. I mean, you changed one and it cleared one fault, and one remains. And it seems reasonable to change both simultaneously (although it seems weird that they would fail simultaneously, it also seems like if it's a wear issue that they would have similar service lives).

EDIT: Doing a quick Google of that fault code, I don't see what else the issue could be. I might run the car by an indy to see what they think if you really want to know for sure before ripping the intake manifold out, if that's your hesitation.

Just out of curiosity, is your car an N51 that cam stock with the DISA motors, or an N52 where they were added afterwards? Mine is an N52, and I swapped in the 3-stage manifold - I'm wondering if my car would even "know" these codes in case of DISA failure? I know they work without coding, and the fault code most come from a problem downstream (AFR sensor or something), so it probably would.
__________________
____________________________
Appreciate 0
      06-11-2016, 12:00 PM   #15
gratuitous
New Member
gratuitous's Avatar
United_States
5
Rep
11
Posts

Drives: 2011 BMW 128i M-Sport
Join Date: May 2016
Location: Colorado, USA

iTrader: (0)

Thanks for the reply.

Mine is an N52K that came stock with two DISA's in the manifold. There were no CEL or SES lights displayed. I purchased this car used, and therefore had no idea what the acceleration should feel like had the car been new. I only discovered the codes, because I was trying to sort out a right cornering light issue (different thread), which does display as a dash warning on start-up. I was also performing an whole car maintenance reset due to not quite knowing how the car had been maintained by the previous owner, and wanted to see what other sort of faults were occurring.

The degradation in performance was a subtle, low RPM sort of thing. When accelerating hard, I would notice a sort of drop in power between 3500 and 4000 RPM, and then get a surge of power after 4000 RPM. The engine definitely puts out more power at low RPM's now. You can definitely feel the increase in power in the seat of the pants, and the drop in power between 3500 and 4000 is not longer as harsh as it used to be.

I appreciate your recommendation for posting over on the e90 forum, and I may just replace the lower DISA for the heck of it.

Cheers,
Grat
Appreciate 0
      09-26-2016, 06:54 AM   #16
gratuitous
New Member
gratuitous's Avatar
United_States
5
Rep
11
Posts

Drives: 2011 BMW 128i M-Sport
Join Date: May 2016
Location: Colorado, USA

iTrader: (0)

Hey Guys,

I wanted to close this topic by letting you all know that replacing the lower DISA finally eliminated the last of my variable intake manifold codes. I found a couple of decent videos are how to remove the intake manifold, and was able to do the job myself with no drama.

Thanks,
Grat
Appreciate 2
      03-23-2019, 12:48 PM   #17
automan25
Registered
0
Rep
1
Posts

Drives: 2010 BMW 328i Coupe
Join Date: Mar 2019
Location: Seattle

iTrader: (0)

Gratuitous,

Did you notice another improvement in performance when you replaced the lower DISA valve? Also, can you provide a link to the videos you mention. Thanks.
Appreciate 0
      03-23-2019, 03:21 PM   #18
desertman123
E82 Mudflap Ambassador
desertman123's Avatar
United_States
1644
Rep
1,834
Posts

Drives: '08 128i
Join Date: May 2016
Location: Orlando, FL

iTrader: (0)

Garage List
2008 BMW 128i  [5.00]
2014 BMW 528i  [5.00]
Quote:
Originally Posted by automan25 View Post
Gratuitous,

Did you notice another improvement in performance when you replaced the lower DISA valve? Also, can you provide a link to the videos you mention. Thanks.
My friend needed both DISAs replaced, I only needed the small/lower one and there's a dyno graph over at E90post showing what the power looks like with broken DISAs.

Based on how my car changed after replacing the small one, and how my friend's car changed changing both, I think the big DISA affects the 3-5k RPM range and the small DISA is lower end.

When I replaced my small DISA my partial throttle and low speed driving was a fair bit smoother, but I didn't feel I gained much if any power.
__________________

My 2008 128i - Sparkling Graphite/Beige - Sport pkg - 6MT - Click me!
Parents' 2014 528i - Mineral White/Ivory White - fully loaded
Instagram @Andreys_128i
Appreciate 0
      04-13-2019, 01:56 AM   #19
juld0zer
Major
393
Rep
1,362
Posts

Drives: E82 135i 7DCT
Join Date: Jul 2016
Location: 2153

iTrader: (0)

If you have access to ISTA, i highly recommend using that to reset the DME adaptations after changing the DISA flap/s. I got throttle adaptation faults after doing it in INPA.
Appreciate 0
      04-13-2019, 12:01 PM   #20
desertman123
E82 Mudflap Ambassador
desertman123's Avatar
United_States
1644
Rep
1,834
Posts

Drives: '08 128i
Join Date: May 2016
Location: Orlando, FL

iTrader: (0)

Garage List
2008 BMW 128i  [5.00]
2014 BMW 528i  [5.00]
Quote:
Originally Posted by juld0zer View Post
If you have access to ISTA, i highly recommend using that to reset the DME adaptations after changing the DISA flap/s. I got throttle adaptation faults after doing it in INPA.
Yeah I'd imagine ISTA covers the throttle adaptation by itself too. Usually I just reset with INPA, then do the 'hold the throttle for 10 seconds' to reset it followed by clearing the codes.
__________________

My 2008 128i - Sparkling Graphite/Beige - Sport pkg - 6MT - Click me!
Parents' 2014 528i - Mineral White/Ivory White - fully loaded
Instagram @Andreys_128i
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 10:24 PM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
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