We had a Focus 1.6 TDCi. Never missed a beat. Yours was probably sold by the previous owner because of the issues which are normally caused by poor maintenance, like any car a Focus needs looking after with the correct oils etc. Ours was serviced correctly every year for the 5 years we owned it and chances our not only us but the person who now owns it (mechanic at the garage we traded it to) has benefited from this.

We now have a Kia Ceed. Actually prefer it to the Focus, its a bit faster (we have the 115 bhp 1.6 CRDi), a bit bigger and more economical.

Very few issues have been reported with these cars but as I said above correct maintenance is essential. Preferably get one with a full Kia service history and providing its done under 100,000 miles it will still have some Kia warranty left. Plenty on sale so only buy one with full documentation.

I should mention that my budget, as was for the Focus, is around the £4000 mark.

If youre after a Focus most leasing companies seem to be giving them away (is there a fault?) take a look at this?

Added the payments up and it's £3099.69 + VAT for 2 years. Definitely worth a look but it is possible a bit more short term

I don't think that the Ford 2.0 TDCI engine had the same problems. If you like the Focus, go for one of these: better perfiormance and very little penalty in economy.