2001 V70 XC , speedometer misreads 137km/h when actual speed is 120km/h

shodanx · Post by **shodanx** » 17 Jun 2019, 18:04

Hi,

I have a good condition 2001 V70 XC with 652000 km on the odometer.

However the speedometer reads about 15% too fast.

I have 205/55R16 tires on there but I believe it was originally 215/65r16. This should account for about 8% of the difference.

Is there any way to adjust the speedometer to match actual speed ?

Post by **Rattnalle** » 18 Jun 2019, 02:15

Correct Tyre size would be a better option. As it is now you're getting the wrong gear ratios and everything as well as the speed showing too high. 214/65-16 is indeed the correct one. The car is programmed so it'll show a few km too high with the correct tyres as well if compared to a GPS but the difference should be quite small.

Speedometer can be adjusted but you need to find someone who can change the carconfig to do it.

shodanx · Post by **shodanx** » 18 Jun 2019, 23:20

Can the adjustment be done using VIDA ? (I have it working)

This is my backup car so I'll be with these tires until they wear out (probably 2 more summers). So I'd like to adjust if possible.

Post by **Rattnalle** » 19 Jun 2019, 01:48

A regular vida doesn't have the capability to change the carconfig. People who can reprogram the car to add equipment should be able to help though. I only know a guy here in Sweden not on your end. But im thinking trying to swap tyres with someone is probably cheaper.

shodanx · Post by **shodanx** » 22 Jun 2019, 01:19

Thanks,

Is this a special version of vida ? Does it have a distinctive name I could search for ?

This is my backup car and I don't want to spend more on tires than I already have. So it will stay like that until they are used up.

Post by **abscate** » 22 Jun 2019, 03:45

You probably got the speedo from an R.

( MVS humour)

XC70Rider · Post by **XC70Rider** » 22 Jun 2019, 05:29

Smartphones have speedometer applications. Mount it safely on window or vents using magnets.

Had this mount for a over a year in my P2.

https://www.amazon.com/IPOW-Universal-M ... 146&sr=8-3

shodanx · Post by **shodanx** » 24 Jun 2019, 17:34

I have an android auto dock works great but if I want to use the gps app I need to exit android auto, it's kind of annoying but that'll do I guess.

Though, the computer is so conveniently accessible, I am tempted to mess with it with my microcontroller programming tools