Feel for you bud!
With regards to the Fein - under sales of goods act it is the retailers responsibility to refund/replace
so get back on to them and quote that and they will sort it out - many companies rely on consumers
not knowing their rights.
The Sale of Goods Act makes reference to ‘the seller’, this is the shop, the retailer, or the individual you bought it from, and is who you made the contract with. It is not the manufacturer, and don’t let the shop tell you otherwise! If there is an obvious fault with the item at any time within the first 6 months and it has not been caused by wear and tear or misuse, your first port of call must be the shop you bought it from. They have the responsibility to put the matter right, and should not evade this responsibility by referring you to the manufacturer in the context of a guarantee or warranty. Even after this 6 month period, if the item breaks down prematurely , you should always go back to the shop or retailer in the first instance.
Your statutory rights under the Sale of Goods Act take precedence over and above any warranty or guarantee you may have with either the retailer or manufacturer. It is misleading for a shop to tell you they can do nothing simply because their warranty or guarantee has run out, because you will still have your statutory rights.
With regards to your van I would recommend
www.breakeryard.com.
Just got a power steering pump for my van for £35 delivered next day - better than £300 for a new one (bearing in mind
the one that packed up was only 16months old!)