Right I've got my manual in front of me since this question comes up a lot and may be something to do with it now not being in the manual although as I said a better solution is to get the headlight protectors which come with the
stickers as well and it's all marked up, no guess work and measuring in the wind and rain at the port as to where to stick them:
For Righthand Drive Cars driving on the right
Right handlight [ie drivers side] need a patch 90 mm [vertical] x 100 mm [horizontal] placed 215 mm in from the inner end point of the headlight plastic measured from the side closest to the radiator [ie centre of the car]
Left handlight [passenger side] need a patch 90 mm x 120 mm placed 150 mm in from the tip of the headlight plastic measured again from the point closest to the radiator.
For lefthand cars driving on the left as follows
Right handlight, 90 mm x 120 mm, 150 mm in
Left handlight, 90 mm x 100 mm, 215 mm in
Enjoy.
[was these plastic bits that a lorry drive nicked off the front of my car on the passenger ferry to France just three days old when I took it abroad, given that I had made them myself, the lack of deflectors and the same design and my tape stuck 6 foot in the air on his lorry lights gave the game away.... he relented pleaded that he had done nothing and we could have them [back].... I don't know whether this is normal practice for lorry drivers to steel the deflectors off cars since up to then on my old Citreon I stuck them under the headlight protectors... got back first thing I did was to order Seat Altea ones in and low and behold they also came with deflectors and a marked area where you stick them inside and lorry drivers can't nick them !
tough for him since my design wasn't that good and he would have got the backing of nasty masking tape on his glass which I'd used and then black insulation tape on top.... serves him right]