What is too fast? By how much is it off, say, over a measured ten miles? The odometer is not gear driven like on earlier models, so it sounds like a software problem if it isn't something like over- or undersized tires. You might want to get an OBD-2 readout. The car records miles both on the odometer as well as the computer, so you can check in case somebody sets the odometer back. Would be interesting if there were two different readings. Would help you narrow down the problem.

Just found out that someone was selling "odometer gear for Volvo 850" on ebay, for US$20 - expires on 1/4/2004. The seller claimed that "Normally, the gear got worn around 50,000-70,000 miles. It "WILL" worn sometime alone the way. Or you accidentally reset the clock while the car is running. All 850 drivers had experienced or heard of this problem."

Don't know what it is, but perhaps you would like to try it and let us know if that solves the problem?

Rick '95 950T 82K Miles

Do you have tires on the car that are smaller in size than normal? Changing to a size smaller than normal would do it.