BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing
 
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      04-12-2018, 11:48 AM   #23
deansbimmer
BimmerPost Supporting Vendor
deansbimmer's Avatar
United_States
1688
Rep
2,159
Posts


Drives: 2011 E93 M3
Join Date: Nov 2014
Location: DFW, Texas

iTrader: (14)

Garage List
2011 X5M  [0.00]
2011 BMW M3  [0.00]
Quote:
Originally Posted by ns2000x View Post
Unfortunately all back together and I still get the 27E4 code and limp mode. When I pulled the old sensor out it was still under vacuum so I don't believe the hose is compromised. What is next for me to check???
Make sure the three check valves are functioning correctly and verify the pump is working correctly. Check also for wire damage and shorts.
Appreciate 0
      04-12-2018, 11:53 AM   #24
ns2000x
Converted
ns2000x's Avatar
Canada
24
Rep
917
Posts

Drives: '11 E90 M3
Join Date: Feb 2010
Location: Ottawa, Canada

iTrader: (0)

Quote:
Originally Posted by deansbimmer View Post
Make sure the three check valves are functioning correctly and verify the pump is working correctly. Check also for wire damage and shorts.
Thanks! The wires looked OK, but I didn't unwrap them to check. I'll research how to verify the check valves, thank you for the tip.

I guess I should listen for the pump upon start up. I'll check RealOEM for the part number and start shipping for a pump price.
__________________

'11 BMW M3 E90 Jerez - Fox | '17 BMW i3 BEV Protonic - Dalbergia
Appreciate 0
      04-12-2018, 11:56 AM   #25
deansbimmer
BimmerPost Supporting Vendor
deansbimmer's Avatar
United_States
1688
Rep
2,159
Posts


Drives: 2011 E93 M3
Join Date: Nov 2014
Location: DFW, Texas

iTrader: (14)

Garage List
2011 X5M  [0.00]
2011 BMW M3  [0.00]
Quote:
Originally Posted by ns2000x View Post
Thanks! The wires looked OK, but I didn't unwrap them to check. I'll research how to verify the check valves, thank you for the tip.

I guess I should listen for the pump upon start up. I'll check RealOEM for the part number and start shipping for a pump price.
I have all of these related parts used if it can help.
Appreciate 0
      04-12-2018, 01:04 PM   #26
M3MPH1S
Lieutenant
M3MPH1S's Avatar
United_States
294
Rep
549
Posts

Drives: 2010 E92 M3
Join Date: Mar 2015
Location: AL/GA

iTrader: (5)

Quote:
Originally Posted by ns2000x View Post
Yesterday I replaced the sensor. I also unbolted the ABS module and shifted it a tad, don't know if it made any difference. My saviour was LONG needle nose pliers, and I think just blind luck positioning the new sensor.

Unfortunately all back together and I still get the 27E4 code and limp mode. When I pulled the old sensor out it was still under vacuum so I don't believe the hose is compromised. What is next for me to check??? It's been about 7 months now my car is half useless...

Cheers
Did you clear the code first? If not, try that. You purchased the replacement sensor NEW correct? The only other thing I can think of is if the actual pump motor is bad, but I'm almost positive that's a different code (although the pump motor feeds straight into the vacuum line that this sensor is monitoring). After that, you could check for faulty ABS due to air in the system? But that most certainly would be a different code.
Appreciate 0
      04-12-2018, 01:05 PM   #27
M3MPH1S
Lieutenant
M3MPH1S's Avatar
United_States
294
Rep
549
Posts

Drives: 2010 E92 M3
Join Date: Mar 2015
Location: AL/GA

iTrader: (5)

Quote:
Originally Posted by deansbimmer View Post
I have all of these related parts used if it can help.
Can confirm, I ended up buying the sensor new for peace of mind, but bought a used pump from deansbimmer and installed it just in case
Appreciate 0
      04-12-2018, 01:11 PM   #28
ns2000x
Converted
ns2000x's Avatar
Canada
24
Rep
917
Posts

Drives: '11 E90 M3
Join Date: Feb 2010
Location: Ottawa, Canada

iTrader: (0)

Quote:
Originally Posted by M3MPH1S View Post
Did you clear the code first? If not, try that. You purchased the replacement sensor NEW correct? The only other thing I can think of is if the actual pump motor is bad, but I'm almost positive that's a different code (although the pump motor feeds straight into the vacuum line that this sensor is monitoring). After that, you could check for faulty ABS due to air in the system? But that most certainly would be a different code.

Yes I cleared the codes was all happy...for a moment. Went for a spin and then ping. Checked and same code.

I used a new sensor yes, from ECS. Hmm Iíll dig around to see see what the error code usually is for the pump itself before ordering a replacement. Itís almost $500 USD, for a pump shipped to Canada so will see if I can pinpoint first.

Thanks for the help!
Appreciate 0
      04-12-2018, 01:13 PM   #29
M3MPH1S
Lieutenant
M3MPH1S's Avatar
United_States
294
Rep
549
Posts

Drives: 2010 E92 M3
Join Date: Mar 2015
Location: AL/GA

iTrader: (5)

Quote:
Originally Posted by ns2000x View Post
Quote:
Originally Posted by M3MPH1S View Post
Did you clear the code first? If not, try that. You purchased the replacement sensor NEW correct? The only other thing I can think of is if the actual pump motor is bad, but I'm almost positive that's a different code (although the pump motor feeds straight into the vacuum line that this sensor is monitoring). After that, you could check for faulty ABS due to air in the system? But that most certainly would be a different code.

Yes I cleared the codes was all happy...for a moment. Went for a spin and then ping. Checked and same code.

I used a new sensor yes, from ECS. Hmm I'll dig around to see see what the error code usually is for the pump itself before ordering a replacement. It's almost $500 USD, for a pump shipped to Canada so will see if I can pinpoint first.

Thanks for the help!
Damn. Well definitely check with deansbimmer for a used pump first.
Appreciate 0
      05-07-2018, 01:18 PM   #30
ns2000x
Converted
ns2000x's Avatar
Canada
24
Rep
917
Posts

Drives: '11 E90 M3
Join Date: Feb 2010
Location: Ottawa, Canada

iTrader: (0)

Quote:
Originally Posted by ns2000x View Post
Yes I cleared the codes was all happy...for a moment. Went for a spin and then ping. Checked and same code.

I used a new sensor yes, from ECS. Hmm Iíll dig around to see see what the error code usually is for the pump itself before ordering a replacement. Itís almost $500 USD, for a pump shipped to Canada so will see if I can pinpoint first.

Thanks for the help!
Replaced the pump too. Was good that night, cleared the ever present "Increased Emissions" CEL, and the 27E4 code was gone. Next day, right back as soon as I head down the road. Limp mode, same code.

Knowing I still have the ICV, and throttle actuators to look forward to failing I'm beginning to get the impression the E90 M3 is plagued with gremlins and I might lose the enthusiasm I had on day one to garage her and keep it indefinitely as the last NA M. I haven't even cracked 115,000 km (~72k miles) yet.



Combined with the death plummet in value of my 2017 i3, I'm seriously questioning why I have an F15 X5 inbound as my 3rd BMW...

</RANT>

Apologies.
__________________

'11 BMW M3 E90 Jerez - Fox | '17 BMW i3 BEV Protonic - Dalbergia
Appreciate 0
      05-26-2018, 05:47 PM   #31
Warpig12354
Private First Class
89
Rep
139
Posts

Drives: E92 M3
Join Date: Dec 2011
Location: Austin

iTrader: (2)

Quote:
Originally Posted by ns2000x View Post
Replaced the pump too. Was good that night, cleared the ever present "Increased Emissions" CEL, and the 27E4 code was gone. Next day, right back as soon as I head down the road. Limp mode, same code.

Knowing I still have the ICV, and throttle actuators to look forward to failing I'm beginning to get the impression the E90 M3 is plagued with gremlins and I might lose the enthusiasm I had on day one to garage her and keep it indefinitely as the last NA M. I haven't even cracked 115,000 km (~72k miles) yet.



Combined with the death plummet in value of my 2017 i3, I'm seriously questioning why I have an F15 X5 inbound as my 3rd BMW...

</RANT>

Apologies.
Any update on this? Did you replace just the sensor or also the lines it comes with as well? I recently got the 27E4 code as well. Looks like signs of brake fluid going over from the reservoir at one point so I'm assuming the sensor got a little on it. Auto logic says "pump is not running" so I went ahead and ordered the sensor as well as a new pump.
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 -4. The time now is 06:00 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, 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