I think this has pretty much summed it up. Thanks Lightning

OK thanks, I'm grateful for all the responses. There is evidently wear somewhere in the system that is causing the problem; I just couldn't/can't figure out where that wear could be in order to produce the symptoms I have. The wheel boxes are independent and, other than causing jerking or...

Thanks, no they aren't loose.

This all sounds plausible if I were getting a problem in 1 wiper. But, how does wear in the spindle of 1 box cause both wipers to over-run? And they are not just 'flopping about', it is a good, hard powerful bang into the screen rubbers at both ends of travel. Then it goes, instantly, back to...

It is on this thread and one on the Defender forum, that is probably enough duplication without peeing folk off. I didn't actually know that the Disco had the same upmarket, reliable wiper system as the Defender ;-)

That is a thought Joe, thanks. I'm not sure how it would extend at both ends of the sweep, but it is worth checking.

Thanks Flat, hopefully someone might be able to help both of us.

I'm not sure where you mean Turboman? Are you asking if the individual wipers are loose? If so, then the answer is no. The fault causes both wipers to extend their sweep simultaneously by the same amount and then both return to the correct sweep.

Hi, I know that wiper problems have often been raised, but this one has got me baffled. My 05 reg 90 Td5 wipers usually work as advertised; the sweep is as it should be. However, intermittently and for varying periods of time, the wipers over-sweep at both ends. The drivers' side wiper runs on...

Hi, I know that wiper problems have often been raised, but this one has got me baffled. My 05 reg 90 Td5 wipers usually work as advertised; the sweep is as it should be. However, intermittently and for varying periods of time, the wipers over-sweep at both ends. The drivers' side wiper runs on...