Loose Seats

I bought a MK1 clipper recently, but the front seats are loose. I havent had the time to check out what is wrong yet, but was wondering whether anyone knew whether this is this a common problem? Also is it dangerous?

thanks in advance!

there should be some white plastic clips on the runners. cheap bit from german and swedish! should also be a rubber bit on the slide lock at the front.

Jon.

Make sure u get the right ones though mate because they are sided,left and right!When they are missing the seats rock very slightly on corners and roundabouts!Does this sound like the problem?If so,these are what u need.Hope it helps!