53 minutes ago, Spriteracer said:

Hi Matt,  The coding issue I came across was where the LED main beams had been erroneously coded as HID and were receiving only 25% of the power they should have had. This guy had the coding corrected and the LED lights were much better than they had been.  I'll see if I can find the post again when I get a moment.   

Hi Richard, Thanks for all that and you have confirmed my thoughts that it is not really a viable solution. I had seen the costs of the units - new and 2nd hand.  I can live with the lights as they are if I have to but it is disappointing. I do a lot of night driving and I'd hoped the new car (to me) which is great in almost every other respect would be at least as good as the old one (XC70) at night.  Also just to confirm a point is a previous post - I do actually have the working headlight washers. 

As far as I know the light units are all one piece and the garage didn't think bulbs could be changed independently. However I will investigate further.  

 

The incorrect coding is definitely worth investigating but would expect to see lots of fault codes if this was the case. Only thing changeable on LED headlamps is control units and some have a fan inside that can be changed but that’s all. Here is a stamp from the rear of a led c7 headlamp 

Thanks for confirming. your photo is just like mine. 35w and 18w