Morrisg Posted March 22, 2019 Share Posted March 22, 2019 Hello I have just become owner of Ford Mondeo 2.0 Ti-VCT Titanium 4dr Hybrid on 2015 plate. Love the car only issue I have is I would like to upgrade alloy from 16 to possibly 18/19 inch. Is this possible and does it affect fuel consumption efficiency using larger alloys. Friend of mine has said car would need re calibrating as speedo what not have true speed reading if wheels changed. I see the Vignale trim Mondeo HYbrids come with 19 inch alloys and from what I can see use same engine as my Hybrid. Would really appreciate some advice. Quote Link to comment Share on other sites More sharing options...
gg1234635 Posted March 22, 2019 Share Posted March 22, 2019 Yes you would need to change setting on your car. You can do this through a program called Forscan but you will need to purchsae a piece of hardware (under £20) to be able to do it. There are plenty of guides out there on how to do it. There are even spreadsheets on here informing you which setting you will need to change. Quote Link to comment Share on other sites More sharing options...
Jonro2009 Posted March 22, 2019 Share Posted March 22, 2019 Hi. I help moderate a highly active Mk5 Facebook group, one of the other mods has a hybrid and is very 'passionate' about it. You're more than welcome to join us https://www.facebook.com/groups/693277794183606/ 2 Quote Link to comment Share on other sites More sharing options...
Morrisg Posted March 22, 2019 Author Share Posted March 22, 2019 Does anyone know how much fuel efficiency will be compromised by if I put 18/19 inch alloys ?Sent from my ONEPLUS A3003 using Tapatalk Quote Link to comment Share on other sites More sharing options...
tazzman600 Posted March 23, 2019 Share Posted March 23, 2019 As long as the rolling radius of either the 18" or 19" is the same as that of the 16" (wheel with tyre on) then there's no problem with any settings. The only thing you'd notice is ride quality. On your 16's ride will be softish. On 19's you'll feel things like pot holes more. 2 Quote Link to comment Share on other sites More sharing options...
Morrisg Posted March 23, 2019 Author Share Posted March 23, 2019 As long as the rolling radius of either the 18" or 19" is the same as that of the 16" (wheel with tyre on) then there's no problem with any settings. The only thing you'd notice is ride quality. On your 16's ride will be softish. On 19's you'll feel things like pot holes more.Thank you just replaced Citroen C5 that had 19 inch alloys - felt pot holes very badly Sent from my ONEPLUS A3003 using Tapatalk Quote Link to comment Share on other sites More sharing options...
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