Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-09-2016, 08:29 PM
Member
 
Join Date: Jan 2013
Location: Sydney, Australia
Posts: 21
craigsx5 is on a distinguished road
Smile Trans. Failsafe Prog Warning and MAF sensor

Just a quick note re when the TRANSMISSION FAILSAFE PROGRAM warning message comes on the check control panel on the dashboard!

I had this failure warning appear last week. The transmission went very 'jerky' and I thought it had a major failure.

Took it down to my independent and had it the codes read. It showed a failed Mass Airflow sensor(open circuit).
Apparently a number of engine electronic components also report to the transmission computer.

My independent mechanic quoted over A$750 for to install a new Bosch MAF to fix the problem.

Instead I bought a new Chinese copy from Ebay for $60 and installed it myself. It took 15 minutes!

Transmission is now working perfectly and warning message now gone!

I hope this gives members lead when this warning appears!!
Reply With Quote

Sponsored Links

  #2  
Old 03-15-2016, 11:20 AM
Member
 
Join Date: Jul 2015
Location: UK
Posts: 147
V8 00USH is on a distinguished road
I recently had exactly the same thing...trans fail safe message and jerking from 2nd to 1st....and yet I'd only replaced the MAF around 2 months previous. Scanned for faults and it came back with a MAF code so had the MAF exchanged under warranty.

Car's back to running perfectly again now.
Reply With Quote
  #3  
Old 03-26-2019, 06:08 AM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 68
talljames is on a distinguished road
Hi Craig and V8, did you find it was a now and then problem and that the car would come good again after restart and the warning messages would go away before you replaced the MAF. Also, were you able to drive at low speeds after it happened?

I had the same issue and I have a intake air temp sensor plausability on my obd2.
Reply With Quote
  #4  
Old 03-26-2019, 05:26 PM
Member
 
Join Date: Jan 2013
Location: Sydney, Australia
Posts: 21
craigsx5 is on a distinguished road
Hello James,

Yes, the computer reset after the ignition was turned off. However, after about 5-10 minutes running, the warning re-appeared and the transmission problem re-occurred.....very frustrating!

And yes, I could still drive a low speeds. I put up with the problem for about 2 weeks before replacing the MAF sensor. As I said, the cheap Chinese sensor, proved to be very successful.

After this problem, I bought a cheap code reader for less than $20, which helped with future computer warnings. It seems you have done the same.

Good luck, CRAIG
Reply With Quote
  #5  
Old 03-26-2019, 08:34 PM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 68
talljames is on a distinguished road
Thanks Craig. I will look for it to reoccur again. I will probably go with the Bosch as I understand the cheap versions dont last that long. Good to solve the problem though and considering how many cheap versions you could get out of one of the more expensive that is a good idea except for the wear and tear on the engine everytime it happens..)
Reply With Quote
  #6  
Old 03-27-2019, 03:26 AM
Member
 
Join Date: Jan 2013
Location: Sydney, Australia
Posts: 21
craigsx5 is on a distinguished road
No worries James,

If the problem is very occasional, you should try to clean the sensor with a MAFS spray cleaner(I think that is what Jess and Dan need....ha ha!). Also, make sure your air filter is very clean. Then, re-test using your code reader from time to time.

Finally, these X5(e53) cars aren't worth much these days....around $6k-$10k. My Chinese sensor had worked well for years, until I traded-in the car. So be careful not to over-capitalise on the maintenance.
Reply With Quote
  #7  
Old 03-28-2019, 08:24 AM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 68
talljames is on a distinguished road
Hi Craig, thanks and good point about spending too much. I have read that the cleaners dont work that well once the film has gone (something like that). I must admit the costs are starting to add up. I had a 2003 model before this one and loved the comfort suspension and comfort seats. Then at around 220k the air suspension gave way on one side so was about to spend over 2K and someone rear ended my car and wrote it off. The sports suspension is good but I seem to be feeling every little bump and the car sways up and down and from side to side more than it should I think.
__________________


2005 X5 4.4i Sport
Reply With Quote
  #8  
Old 04-09-2019, 01:48 AM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 68
talljames is on a distinguished road
[solved] x5 e53 2005 Mass Air Flow Sensor

So I purchased a more expensive Bosch MAF sensor and housing. While waiting for it to arrive from USA to Brisbane I decided to give the cleaner a go. There were two popular cleaners on the shelf. I figure I am just testing so I purchased the smaller one (see photo).

Name:  A8C983FE-8D6A-4E3E-B976-DA72F573FFE6.jpeg
Views: 54
Size:  112.7 KB

Next I removed the clips off the air filter box lid, unscrewed the hose clip around the maf and noticed the top of the filter was greasy. Then it dawned on me. Its funny how you dont put things together first off. The last mechanic had left one of the clips undone. In fact it was on backwards (duh) and I remember lifting the bonnet and seeing the gap to the filter and thought that was poor workmanship. Have a look at the filter (photo).

Name:  9310F4F5-7F25-43DD-8554-1BD88E1C8799.jpeg
Views: 54
Size:  13.8 KB

Name:  BFEA015C-3FD3-4B85-8494-6394BAB47029.jpeg
Views: 56
Size:  58.4 KB

Anyway, I did the clean and put it all back together and at the same time ordered a new air filter. I drove around a bit with my fingers crossed hoping the dirty filter will not cause the issue again and then nothing. No problems. The new air filter arrived and I was so glad to swap it over. I havenít had an issue since. The new bosch MAF sensor arrived from USA and I have placed it on the shelf just in case for the future. But I think I will do a regular clean of the MAF sensor every 6 months.

Now onto the next issue. 🤓
__________________


2005 X5 4.4i Sport
Reply With Quote
  #9  
Old 04-09-2019, 02:36 AM
EODguy's Avatar
Member
 
Join Date: Jun 2018
Location: Saudi Arabia/Philippines/USA
Posts: 500
EODguy is on a distinguished road
Here in the desert I used a piece of pantyhose before the filter and closed the airbox with self tapping screws and my MAF and filter lasts regular times (although I have had to scoop sand off the engine many times)

Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course
Reply With Quote
  #10  
Old 04-09-2019, 06:47 AM
Member
 
Join Date: Jan 2013
Location: Sydney, Australia
Posts: 21
craigsx5 is on a distinguished road
James,
It's good you checked the filter and I'm glad you got it all sorted.
The original cause of my MAFS failure, also related to the air filter.....it had moisture on it.
Good luck with your next maintenance project.
CRAIG.
Reply With Quote
Reply

Bookmarks

Tags
maf, maf sensor, trans failsafe prog, transmission problem

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 10:11 AM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.