# Instrument Cluster Poltergeist '91 bmw 525i **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** bmw\ **Created:** [March 15, 2009, 12:27am UTC](https://community.cartalk.com/t/instrument-cluster-poltergeist-91-bmw-525i/27775 "2009-03-15T00:27:00Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![forlornfordowner](https://avatars.discourse-cdn.com/v4/letter/f/d26b3c/32.png) [@forlornfordowner](https://community.cartalk.com/u/forlornfordowner)\ **Post date:** [March 15, 2009, 12:27am UTC](https://community.cartalk.com/t/instrument-cluster-poltergeist-91-bmw-525i/27775/1 "2009-03-15T00:27:00Z")
Instrument cluster starts out dead, then pegs all instruments and seems to be in a resetting mode. Just put in a new battery. Ok, I’ll admit it, while trying to charge the old battery I miss connected the charger to the wrong terminals. I now have new glasses. My wife says the car now “communicates to her from the dead” with correct information once the car has been driving for awhile. I found this to be true on a highway trip. The instruments totally reset and ran fine after about half hour. Is there a permenant reset for a computer that might fix the problem or is it fried? Driving with no speedometer is making me nervous. ---
**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\ **Post date:** [March 15, 2009, 2:02am UTC](https://community.cartalk.com/t/instrument-cluster-poltergeist-91-bmw-525i/27775/2 "2009-03-15T02:02:46Z")
More likely than a “permenent computer reset” you have permenent computer damage. In newer BMW the cluster is a main decision making item in the electrical system along with a GM (general module) the older cars also use a GM but I belive the clusters part is less involved.