temp sender / converstion

Hello lads

I am nearing the end of Disco 200 TDI Converstion i have hit the problem of Temp sender not readin correct on 200TDI block verses my 90 Clcok etc.

I have tried the old sender from the 2.5 TD and it does not fit the thread of 200 TDI block.

Any ideas chaps to give correct temp readings?

try a new temp sender, (for the pence they cost), failing that get a 200 tdi 90 clock.

Or have I missed the point?

Cheers

Jim