What is the ECM mean?

Asked by Feb 13, 2016 at 07:36 PM about the 2003 BMW 5 Series 525i

Question type: Maintenance & Repair

After charging my battery on 2003 BMW 525 I my instrument cluster and fuel
gage won't work properly.  Do I have to replace fuses or it said to bring to get
ECM code.

2 Answers

5,605

sounds like Electronic Control Module~ surely stores the trouble codes~ if it's grounded properly will remember everything~ as far as the fuel guage...this is a low technology affair as you've got a float and potentiometer...this mechanical system will fail...they all do~ hardly think a lazer pointer would be appropriate under these circumstances~ may be a co-incidence this battery change/incorrect level...as it takes two devices...the float in the tank...and the variable resistor...both mechanical devices~ if this technology has left me behind, I've a lot to learn~ so yes probably in the tank~ so sorry for the gas fumes that your mechanic will be huffin~ perhaps the fuel pump/float assembly can be removed with one ring above the tank...most are like this...easily remove the back seat and turn the keeper ring~ you may end up doin' that~

50,765

Try disconnecting the battery and reconnecting. It may or may not fix it.

Your Answer

BMW 5 Series Experts

  • #1
    Tom Demyan
    Reputation
    2,110
  • #2
    Michael Branan
    Reputation
    780
  • #3
    Robert Charlson
    Reputation
    690
View All

Related Models For Sale

Used BMW 3 Series
1,018 Great Deals out of 31,325 listings starting at $1,000
Used BMW 7 Series
156 Great Deals out of 5,988 listings starting at $2,500
Used Mercedes-Benz E-Class
446 Great Deals out of 19,599 listings starting at $1,500
Used BMW X5
389 Great Deals out of 12,930 listings starting at $2,495
Used BMW 6 Series
86 Great Deals out of 2,800 listings starting at $5,980
Used Mercedes-Benz C-Class
583 Great Deals out of 23,267 listings starting at $1,995
Used BMW M5
14 Great Deals out of 631 listings starting at $12,900
Used Audi A6
140 Great Deals out of 6,499 listings starting at $1,700
Used BMW M3
48 Great Deals out of 1,473 listings starting at $4,990
Used Mercedes-Benz S-Class
138 Great Deals out of 5,912 listings starting at $2,000
Used Audi A4
293 Great Deals out of 10,719 listings starting at $1,500
Used Honda Accord
1,046 Great Deals out of 62,122 listings starting at $999

Used Cars For Sale

2018 BMW 5 Series For Sale
1,538 listings starting at $51,488
2017 BMW 5 Series For Sale
3,455 listings starting at $48,011
2016 BMW 5 Series For Sale
31 Great Deals out of 688 listings starting at $26,991
2015 BMW 5 Series For Sale
20 Great Deals out of 521 listings starting at $19,480
2014 BMW 5 Series For Sale
162 Great Deals out of 3,556 listings starting at $14,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.