My tach, fuel economy gauge, and my temp gauge stopped working, is this hard to fix?

Asked by Jan 29, 2011 at 06:24 PM about the 1986 BMW 3 Series

Question type: Maintenance & Repair

3 Answers

4,055

First find out which fuse those gauges are powered from and see if it's good. If the fuse is blown, there is some kind of short in the circuit. Then, if you have a DMM and the circuit diagrams for your vehicle and care to get under the dash, trace the circuit to find what the fault is. Keep Ohm's law in mind, Voltage=Resistance (Ohms) x Current (Amps).

1 people found this helpful.

thanks for the help. really appreciate it.

3,395

Replace rechargeable batteries in gauge cluster. Involves cluster removal, access circuit board, remove old batteries. Obtain dual AA battery case and two AA NiCad or NiMh rechargeable batteries from Radio Shack. Solder in new case (with long leads for future (easier) access) somewhere outside of cluster. Re-assemble and you're good to go.

3 people found this helpful.

Your Answer:

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 31,323 nationwide 3 Series listings starting at $1,250.

ZIP:

BMW 3 Series Experts

  • #1
    Tom Demyan
    Reputation
    5,850
  • #2
    Robert Charlson
    Reputation
    1,790
  • #3
    Matt Mankinen
    Reputation
    1,410
View All

Related Models For Sale

Used BMW 5 Series
407 Great Deals out of 16,504 listings starting at $2,099
Used BMW M3
23 Great Deals out of 1,488 listings starting at $6,399
Used Ford Mustang
266 Great Deals out of 37,717 listings starting at $1,350
Used Honda Accord
574 Great Deals out of 103,380 listings starting at $950
Used BMW 7 Series
106 Great Deals out of 4,733 listings starting at $2,399
Used Chevrolet Camaro
237 Great Deals out of 27,287 listings starting at $2,077
Used BMW 6 Series
57 Great Deals out of 2,599 listings starting at $5,999
Used Dodge Charger
278 Great Deals out of 32,022 listings starting at $1,850

Used Cars For Sale

2018 BMW 3 Series For Sale
79 Great Deals out of 8,386 listings starting at $26,276
2017 BMW 3 Series For Sale
71 Great Deals out of 1,925 listings starting at $22,876
2016 BMW 3 Series For Sale
22 Great Deals out of 942 listings starting at $15,498
2015 BMW 3 Series For Sale
211 Great Deals out of 5,119 listings starting at $11,995
2014 BMW 3 Series For Sale
91 Great Deals out of 2,024 listings starting at $9,995

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.