How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Steve Your Own Question

Steve
Steve, BMW Expert
Category: BMW
Satisfied Customers: 23683
Experience:  BMW Expert
26942375
Type Your BMW Question Here...
Steve is online now

My 54 reg 525 diesel has started to show false warnings - transmission,

Resolved Question:

My 54 reg 525 diesel has started to show false warnings - transmission, cruise control, fuel pump, restraint system - some prevent starting. After 3 or 4 attempts the car starts and all appears OK.
I have tried rebooting the computer by disconnecting the battery but this has not helped. The battery is relatively new and in good condition.
Any ideas would be appreciated.
Submitted: 1 year ago.
Category: BMW
Expert:  Steve replied 1 year ago.
what faults are logged in the car's computer fault memory?
Customer: replied 1 year ago.
When this problem first occurred last week, I called the RAC and there diagnostic system could see all the "faults" I listed except the restraint one which only appeared today.
Am I able to access the computer data?
Expert:  Steve replied 1 year ago.

a diagnostic scan tool is required to read out faults.

what you have listed are only driver warnings, not faults.

I take it the specific fault information is not available?

Customer: replied 1 year ago.

No, the fault information is not available without aking the car to a repairer. My impression is that the warnings are false - one warning would suggest a true fault but 3 or 4 in quick succession suggests a computer error.

Expert:  Steve replied 1 year ago.

I will provide an honest answer. I trust this will be appreciated. Please remember that a low rating PUNISHES me for being honest and that I receive nothing for my time until a positive rating is clicked.

it is true that there are not likely 4 seperate faults, but the fault logs are still necessary for verification of the true fualt.

most commonly a group of warnings like this would be caused by low voltage - so either a failing battery, alternator, bad connection/groupd or parasitic drain.

this is your most likely cause, and in fact the only common cause of issues like this

Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.

Steve, BMW Expert
Category: BMW
Satisfied Customers: 23683
Experience: BMW Expert
Steve and other BMW Specialists are ready to help you
Customer: replied 1 year ago.

Thanks, ***** ***** discuss with an independent BMW repairer.

What Customers are Saying:

 
 
 
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
< Previous | Next >
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
 
 
 

Meet The Experts:

 
 
 
  • Matt

    Matt

    Mechanical Engineer

    Satisfied Customers:

    98
    BEng hons Mech engineering, in auto industry 22 years
< Previous | Next >
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    98
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/Guest/2008-02-15_191551_avatar.jpg Roger's Avatar

    Roger

    BMW Master Tech

    Satisfied Customers:

    2823
    10 yrs. experience as BMW Master Technician, shop foreman and dealer.
  • http://ww2.justanswer.com/uploads/FO/fordtwo/2014-12-19_163422_arrepair.64x64.jpg Robert's Avatar

    Robert

    BMW Technician

    Satisfied Customers:

    83
    Fully qualified 19+yrs exp/self employed technician in the UK
  • http://ww2.justanswer.com/uploads/IN/indytech/2013-8-8_102717_SantoDomingo146598x6402.64x64.jpg Greg's Avatar

    Greg

    Technician

    Satisfied Customers:

    1095
    Automotive diagnostic tech
  • http://ww2.justanswer.com/uploads/TE/techmachine/0601821347169_717372168_8940977_39623330_o.64x64.jpg Ross's Avatar

    Ross

    Diagnostic and repair technician

    Satisfied Customers:

    467
    Licensed diagnostic and repair technician
  • http://ww2.justanswer.com/uploads/RO/RobMechanic/068.64x64.JPG Rob's Avatar

    Rob

    ASE Certified Technician

    Satisfied Customers:

    82
    30 years trade experience