what is wrong with this sentence?

[svartnik]

They will be waiting when we have got there.

At the moment of completition of the action: arrival, denoted by when, another action will be in progress: waiting.

Does this sentence make sense to you?

[Anglika]

Perfectly good sense in that there are two parties involved, one of which is completing an action, the other of which is in progress.

[svartnik]

Hello,

Thanks

What does when mean here?
Which moment or period of time does it refer to?

[Anglika]

The moment of time at which we arrive at the meeting place

[svartnik]

Hello Again

I will buy a car when I have passed my driving test.
When do you expect the car purchase?
Definitely not at the moment when You have passed the test, do you?
What is the difference between the two when's?

Thanks

[Tdol]

No, but the test must be complete first; it cannot be a moment before.

[Philly]

Hello Again
I will buy a car when I have passed my driving test.
When do you expect the car purchase?
Definitely not at the moment when You have passed the test, do you?
What is the difference between the two when's?
Thanks

They will be waiting when we have got there. To me this first sentence is only logical if the waiting continues AFTER the arrival for some reason. (It also sounds a bit like the waiting will begin after the arrival.) I'd prefer "They will be waiting when we get there." if you want to indicate that the waiting will end at the time of arrival.
.
I will buy a car when I have passed my driving test. --> To me there isn't much difference between the 'when' in your original sentence and the 'when' in this sentence: They both refer to a state of having already done something.
.

[svartnik]

They will be waiting when we have got there. To me this first sentence is only logical if the waiting continues AFTER the arrival for some reason. (It also sounds a bit like the waiting will begin after the arrival.) I'd prefer "They will be waiting when we get there." if you want to indicate that the waiting will end at the time of arrival.
.
I will buy a car when I have passed my driving test. --> To me there isn't much difference between the 'when' in your original sentence and the 'when' in this sentence: They both refer to a state of having already done something.
.

I could not agree more.
The sentence is correct in terms of grammar, but wrong from semantical aspects.