Suggest you stay away from OE replacements Nigel as this is a very common issue with them. Most people fit these (image link) universal ones cut to suit. The material is more supple than that of OE.
![[Linked Image]](https://www.carbuilder.com/images/thumbs/003/0031940_universal-steering-rack-gaiter-black.jpeg)
Mine first leaked and then split whilst car still under warranty after just a few thousand miles. I gave a pair of these to dealer who fitted them under warranty giving me the OE replacements. No issue since five years down the road.
