406oc.co.uk

I have a 406 hdi 110 and, after earwigging a lad at work about performance and economy after he had his ecu remapped I am curious to know if anything can be done to improve the economy of my motor (performance would be interesting but it's economy that is of more importance). Can anyone help please?

cheers

Anyone know where I can get hold of an owners manual/handbook for a 2003 406 LX (110) estate. Too tight to order through main dealer. Thanks folk