Took Delivery of Saab 9-3 Aero Sedan, Should Speedometer be Right?

[r171mb]

Last week I finally got my 2008 Saab 9-3 Aero Sedan. It's a neat car. It sure handles nicely, just a few cosmetic things I'd like to work on. Plus, it needs rotors all the way around, I get some shudder.

However, I'm finding it somewhat annoying that the speedometer is inaccurate. I discovered this on the way home when family in the car, with smart phone apps told me I was driving slow.

At 75 MPH on Saab speedometer I'm actually traveling 71 MPH.

The car has the stock tires and wheels. What gives?

Are all Saab speedometers inaccurate?

[CarbonFlash]

Most European cars read like that, 2-3% fast for some reason. All of my Saabs and Audi's have. Ironically I'm in a loaner Chevy right now and the speedo is dead on. Just the way things are so your car is probably fine.

[r171mb]

Most European cars read like that, 2-3% fast for some reason. All of my Saabs and Audi's have. Ironically I'm in a loaner Chevy right now and the speedo is dead on. Just the way things are so your car is probably fine.

70 but reading 74 just seems like a pretty big error, but I appreciate your confirmation. My Mercedes car reads spot on oddly.

I'm sure you're right though, appreciate you sharing that observation too. I just feel funny having to drive 80 if I want to do 75, for example. It just seems odd (for Saab) to change what is "correct." ha.

[rpiereck]

My SAABs are spot on from 55 to about 75 mph. Above and below that there are errors. Being 4 mph off at 75 mph is a 5% error, which isn't excessive. Better to show faster than slower!

[Burnsside42]

My 2006 is the same way - I even make sure to program it for the specific tire and speed rating in it - doesn't fix that. As said - European cars are off as much as 5%. It's too keep you from speeding Use your phone's GPS for accurate speed or just figure you are 5MPH off above 75....