DISA valve flap broke

JVDHM · 09-27-2017, 01:46 PM

My 07 3.0si coupe has been running like garbage recently so I decided to check on how my beloved disa was doing. It was not doing well

I am wondering:

Is it okay to drive without a flap temporarily?
Is the section on the flap that is chipped normal?
Is it better to rebuild or buy a brand new disa?

Thank you

Z4M_Coupe · 09-27-2017, 07:08 PM

Its okay to run without it, but I recommend you replace it as soon as you can.

3002 tii · 09-28-2017, 01:19 AM

Buy brand new...

TRiCC · 09-28-2017, 12:00 PM

1. Its okay for the disa to be absent, but you might lose a little drivability.

2. It is a common location for the chip/crack/breakage

3. Yeah i agree with 3002tii, i would just pay for a brand new unit in your situation to ensure that the disa will last for another 100k+ miles.

RobMCoupe · 09-29-2017, 08:49 AM

Get a rebuild/upgrade kit from German Auto. I used before and it works great when I rebuild my friends 530i.

miscbrah · 10-21-2017, 04:33 PM

Is this the upper or lower disa?

markos_z4 · 10-22-2017, 11:29 AM

how many miles on the car ?

JVDHM · 11-20-2017, 04:17 PM

Quote:

Originally Posted by RobMCoupe

Get a rebuild/upgrade kit from German Auto. I used before and it works great when I rebuild my friends 530i.

According to their site, their n52 rebuild kit is still in development? I don't know when that was last updated but it seems they only sell M54 rebuild kits unfortunately. This seems to be the only one I can find

Quote:

Originally Posted by miscbrah

Is this the upper or lower disa?

It's the upper (larger) one

Quote:

Originally Posted by markos_z4

how many miles on the car ?

Pretty high at around 148k now, kind of surprised it lasted this long.

RobMCoupe · 11-26-2017, 01:45 PM

Quote:

Originally Posted by JVDHM

According to their site, their n52 rebuild kit is still in development? I don't know when that was last updated but it seems they only sell M54 rebuild kits unfortunately. This seems to be the only one I can find

It's the upper (larger) one

Pretty high at around 148k now, kind of surprised it lasted this long.

Sorry about that. Forgot you have N52.

Here is an alternative.

https://vanos-bmw.com/repair-kit-for...-n52-n52n-n52k

There is youtube on how to cut open DISA valve to replace the pin and flap.

Daemonblitz · 11-29-2017, 02:52 PM

There is a pretty inexpensive repair kit for both DISA valves on Ebay actually, just do a search for N52 DISA repair kit (Make sure you order the correct one, LARGE or SMALL). I did it on my N52 330xi and it worked perfectly fine. Way cheaper than a new DISA valve.

09-27-2017, 01:46 PM	#1
JVDHM New Member 25 Rep 18 Posts Drives: 3.0si Coupe Join Date: Jul 2016 Location: GTA iTrader: (0)	DISA valve flap broke - some questions. My 07 3.0si coupe has been running like garbage recently so I decided to check on how my beloved disa was doing. It was not doing well I am wondering: Is it okay to drive without a flap temporarily? Is the section on the flap that is chipped normal? Is it better to rebuild or buy a brand new disa? Thank you
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09-27-2017, 07:08 PM	#2
Z4M_Coupe Lieutenant 201 Rep 461 Posts Drives: Z4M Join Date: Aug 2017 Location: SoCal iTrader: (6)	Its okay to run without it, but I recommend you replace it as soon as you can.
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09-28-2017, 01:19 AM	#3
3002 tii Lieutenant General 2278 Rep 12,565 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (99) Garage List F15 X5 xDrive35i [8.33] E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.33] E82 135is (Retired) [9.46] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.00] E86 Z4 3.0si (Retired) [9.20]	Buy brand new... __________________ Follow for latest mods
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09-28-2017, 12:00 PM	#4
TRiCC E86 M Coupe 265 Rep 402 Posts Drives: Z4M Coupe Join Date: Oct 2009 Location: SOCAL iTrader: (3)	1. Its okay for the disa to be absent, but you might lose a little drivability. 2. It is a common location for the chip/crack/breakage 3. Yeah i agree with 3002tii, i would just pay for a brand new unit in your situation to ensure that the disa will last for another 100k+ miles.
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09-29-2017, 08:49 AM	#5
RobMCoupe Captain 60 Rep 932 Posts Drives: 2007 Z4 M Coupe Join Date: Feb 2010 Location: Bay Area iTrader: (6)	Get a rebuild/upgrade kit from German Auto. I used before and it works great when I rebuild my friends 530i.
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10-21-2017, 04:33 PM	#6
miscbrah Private 11 Rep 66 Posts Drives: Z4 3.0si Join Date: Sep 2016 Location: Boston iTrader: (0)	Is this the upper or lower disa?
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10-22-2017, 11:29 AM	#7
markos_z4 instagram : https://www.instagram.com/markos_z4/ 64 Rep 71 Posts Drives: BMW Z4 Coupe 3.0si 2006 Join Date: Sep 2017 Location: Holland iTrader: (0)	how many miles on the car ? __________________ follow me on instagram:www.instagram.com/markos_z4/
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11-29-2017, 02:52 PM	#10
Daemonblitz Commander 219 Rep 850 Posts Drives: Z4MC/M5/640iX/M1000RR Join Date: Nov 2010 Location: Aurora, ON, Canada iTrader: (6) Garage List 2008 BMW M5 [9.50] 2006 Z4M Coupe [8.77] 2010 BMW S1000RR [10.00]	There is a pretty inexpensive repair kit for both DISA valves on Ebay actually, just do a search for N52 DISA repair kit (Make sure you order the correct one, LARGE or SMALL). I did it on my N52 330xi and it worked perfectly fine. Way cheaper than a new DISA valve. __________________ E86 ///M Coupe - Imola Red/Imola Red E60 ///M5 - (6 Speed) Silverstone Metallic/Black F06 640iX - Tanzanite Blue/Amaro Brown K66 ///M1000RR - Competition
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