speedo adjustment

I have just had some 20inch wheels fitted to my T6.1 and the Speedo is now 3mph higher than the gps reading. 70mph on the Speedo is 73mph in real life. Is it possible to have the Speedo calibrated ?

I’ve got 20” wheels with 275/40/20 tyres. I’m pretty sure my speedometer hasn’t been calibrated since. Will my speedo be out? I’ve noticed sometimes I seem to be faster than the traffic sitting at the speed limit. What diagnostic tool is used to calibrate the speed VCDS or Carista? Cheers

I've recently got my t6.1 camper from new. 20" wheels fitted and so I checked it was reading correctly, appears to be under reading by up to 3mph (common thread on here). My question, should this have been done by the dealer/converter, at the very least I should have been told. I can drive...

I am about to buy a set of Fuel Zephyrs for my T6.1 Shuttle running on 235/65/17 and as far as I am aware no one is yet able to tweak the calibration on the 6.1 software to correct the speedo, so was wondering if anyone has had any experience with this...

I am about to buy a set of Fuel Zephyrs for my T6.1 Shuttle running on 235/65/17 and as far as I am aware no one is yet able to tweak the calibration on the 6.1 software to correct the speedo, so was wondering if anyone has had any experience with this...

I see that VW are also offering 20" tyres after a recent visit. Can you code the vehicle for a larger wheel/tyre circumference? Cheers Ollie

Will these be ok on a T30 - 275/40/19 - 9 offset?

Oh my god, I'm going round in circles with wheels and tyres sizes! So if it's a 20" wheel the tyre will be a 265/40/20 for my t32 ( when I'll actually get it god knows! ) .. This will through the speedo out by 4%... Is there a way to get the speedo adjusted so that it reads the correct...

I have just changed my wheels from 16" to 20", and thas you all know the speedo is out by about 7% according to will they fit .com My question therefore is there anyone in the Reading Berkshire area that can change the calibration for me?

Module 17 – Instruments carries also the coding to select a few scaling factors for speedometer. Byte 0, bits 0..3 have mysterious value “K-number”. It turned out changing this coding adjusts measuring values IDE00842 (K-number) and IDE00845 (Wheel circ. mm) of module 17 - Instruments, and...

Hi, I was going to have the Seikel raised suspension kit fitted to my van which includes 235/65R17 108H tyres being fitted to my standard wheels, they tell me that if they do s speedo adjustment to match these tyres that there is a possibility that the cruise control will stop functioning...