I've never taken a car to a main dealer before, I thought it would be a good start to the ownership of this new to me LS. Although given that when I checked the air filters after purchase and they looked like 2011 originals filled with dust and debris, that doesn't say much for the long list of main dealer services this car had in its previous ownership by the Duke of Wesminster! A couple of complaining emails to the dealer and to Lexus UK and the dealer has come back and offered to do both diffs free of charge. They have said their Techstream software is no longer able to peform a Hybrid Health Check on this model, and they've stuck to that even now they've offered to do the differentials, but has anyone used the Dr Prius app to look at their battery performance? Just interested to know if it's still in good condition..