The OBC that measures mileage on my 2009 335I (and then uses that to measure miles to empty) has gone crazy. Is there a way of resetting, or is it a problem that must be fixed at BMW repair.

Asked by Sep 08, 2014 at 12:09 AM about the 2009 BMW 3 Series 335i xDrive Coupe

Question type: Maintenance & Repair

All of a sudden, the display that indicates the mileage I am getting as well as the miles to
empty has gone crazy - says I am getting 75 MPG.  Is there a way of resetting?

1 Answer

34,655

The chicken soup answer is disconnect the battery for about a half hour. That will clear the ECU and reset it. HOWEVER! You will need the radio code. And you may just get the anti theft system excited or confused. I call it the Chicken Soup approach because it couldn't hurt. Most of the time.

Your Answer

Add photo

Related Questions

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,760
#2 Robert Charlson
Robert Charlson
Reputation 1,600
#3 Matt Mankinen
Matt Mankinen
Reputation 1,220
View All

Related Models For Sale

Used BMW 5 Series
493 Great Deals out of 16,387 listings starting at $650
Used BMW M3
30 Great Deals out of 1,317 listings starting at $5,995
Used Mercedes-Benz C-Class
605 Great Deals out of 24,677 listings starting at $1,995
Used Audi A4
304 Great Deals out of 10,499 listings starting at $1,000
Used Ford Mustang
705 Great Deals out of 44,424 listings starting at $1,500
Used Honda Accord
1,034 Great Deals out of 67,109 listings starting at $1,000
Used Mercedes-Benz E-Class
409 Great Deals out of 19,395 listings starting at $1,200
Used Chevrolet Camaro
353 Great Deals out of 31,259 listings starting at $2,500
Used BMW X5
462 Great Deals out of 14,800 listings starting at $1,999
Used BMW 7 Series
153 Great Deals out of 6,099 listings starting at $2,740
Used BMW 6 Series
81 Great Deals out of 2,827 listings starting at $6,990
Used Dodge Charger
532 Great Deals out of 28,516 listings starting at $2,500
Used BMW 1 Series
35 Great Deals out of 973 listings starting at $6,495
Used BMW X3
304 Great Deals out of 12,806 listings starting at $2,500

Used Cars For Sale

2013 BMW 3 Series 335i xDrive Coupe For Sale
50 listings starting at $17,980

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.