New car to me, 1999 1.8TD estate being done for my brother. I have done a few jobs including hanging rear of subframe down a bit to do anti roll bar bushes, oil drain pipe under turbo and brake work around under the master cylinder.

The speedo and milo definitely worked...I zeroed it and it now reads 4 miles. However after this work it has stopped and the milo is not working either.

Any ideas gratefully received, is it electronic speed sensor or cable and where is it located on the gearbox?