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

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?

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.

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Originally Posted by 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.

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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.

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!

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....