Got myself a Freelander 2001 2.0 TD4 (112 Hp) Automatic, it sounds well, and drives well, I think the engine and the transmission are good; the problem is that there are very little Land Rovers around where I live, so I have no experience with them, nor anyone to ask.
Therefore, I've got couple of questions:

1. Power steering is quite stiff. I don't know if it should be like that cause its an older car and it should be like that or it could be needing new steering fluid or maybe a pump. I also own a Renault Megane II and its steering is really easy, you can do a full turn with only your palm pressed against it, in the Rover I need to use both hands and it requires decent strength. I need to put quite some strength if I would like to turn with one hand, and I'm quite a big guy, ~200cm.

2. Couple of times it happened that I completely lose throttle, an ember icon with a "!" shows up on the dashboard and I lose throttle pedal input. I'm sure its not a fuel pump, cause I don't gradually lose power or anything similar, it's like I release the pedal completely for a second or two and then it works again. Happens once or twice every week for a split second. I think its the throttle pedal sensor.

3. Fuel gauge sometimes shows inaccurate values. Not always, but I've noticed that I, for example, have half a tank of fuel and it drops down and then comes back up in a period of around half an hour. Should I try cleaning the sender?

4. Heating is slow to start up. I turn it on and it barely pushes heat for a whole hour and then it starts working really well. Core needs a flush?

Thanks whoever answers, I would also really appreciate any tips you might have about this car.