Subject: Re: Thermostatic Radiator Grill opening Mechanism
I have a similar arrangement on LG45 and also had the same on my M45. I would not dispose of your existing system without trying it fully first of all. I found that the thermostatic control was always "too late" i.e. it only opened fully a long time after you incurred problems on the road. It only seemed to open right at the top of a very long hill or when you had been waiting for some time at roadworks or congestion.
I therefore converted my shutters so that I could operate them by hand and anticipate the problems that I could clearly see on the road.
I know that this arrangement will not suit everyone but it works well for me !