The concept of the Freelander is a part time four wheel drive vehicle. Which is basically front wheel drive until the front wheels lose traction then drive is transmitted to the rear. The only time a Freelander is four wheel drive is if one or more front wheels lose traction. At all other times it is a front wheel drive car. As long as the VCU is regarded as a consumable item with a service life, all will be well. There is no mention of testing VCU operation in the service sheets. If Land Rover had been honest about the VCU there should have been. Would have thought this innovation would be greeted with open arms by most Freelander owners who use their vehicles for everyday transport. The Freelander working correctly is no more than a slightly muddy farm track car. It is not really suitable for the proper off roading that some people want to use it for. If you want to go serious off roading get a proper 4x4 and stop trying to do it on the cheap.