European On Board Diagnostic (EOBD) fault codes were standard on all new UK cars from 1st January 2001 for petrol models, and 1st January 2004 for diesels. Many cars however were EOBD compliant before these dates. This applies to engine emission data only. Any EOBD code reader should be able to read this data, and it's pretty useful to own one.

However, this must not be confused with manufacturer specific codes and data, and in any case carrying out checks on all vehicle modules other than engine emission data will require the use of more specific equipment. There will be lots of varying opinions as to what is best, but I have not yet found one single piece of equipment that truly does everything on every vehicle....

If you get 35 mpg on petrol
12000 miles costs (at £4.05per gal(90p a ltr x4.5l))
12000 / 35 = 342 x £4.05 = £1338

If you get 45mpg on deisel
12000 costs at £4.27 per gal (95p a ltr etc)

12000 / 45 = 266 X £4.27 = £1138
Pls check my sums(hope i have not made any silly mistakes)
So you only save £200 a year on fuel. If the diesel car is £1000
MORE expensive it will take 5 years to break even.
This is harder to judge for used cars as prices and condition varies so much.
Some new diesels seem to be up about £1500 more for an equivalent model.

other threads also take service costs into account but it then gets more complex. It seems diesel is not all it is cracked up to be from a fiscal view but then you get the driving experience which may be good or bad.
The 2.2ctdi honda is very good but still noisier than petrol i found.
Also no auto which rules it out for me.
The S60 is much classier inside and a very good used buy but I still like my old Accord after 113,000 miles and 8 years on my drive!! Choices choices, not sure what to do either, just wait and see how the old one goes.

My understanding is that the Mondeo 2.0 misfire is cured by the EGR valve replacement - together with the 'plumes of smoke' issue and a few other faults. There's lots of anecdotal evidence of this - see the mondeo owner's site forum for lots of info on this. (www.fordmondeo.org)
Nearly every posting refers to the dealers recommending an ecu upgrade, but very few seem to get any long term benefit from this. It seems to me to be a mechanical issue, not electronic.
You've just had the EGR replaced, so should notice an improvement. If not, you're the first I've read about to report this.

Fortunately I've never had the above issues. But mine did 'start' cutting out about 12 months back. This was completely cured by a new camshaft sensor - again at the second referral to the garage, because all they did the first time was upgrade the blasted ecu. Why do they do this!?
Splodgeface

Has it only been doing it since the oil change?

I remember a friend of mine having similar problems with his old 50cc bike after an oil change. He forgot to replace the copper washer on the sump plug, which was enough to allow the sump plug to screw that bit further into the engine casing and ended up fouling the gear selector drum.

At some pumps my diesel Passat causes them to cut out straight away. So I have to twist the nozzle around to stop that.
I usually top up to the filler neck as I can get another 10 litres or so in. Some fuels are so frothy I just give up.
Never had problems with overflow in hot weather with my cars.
Once my fathers's 1968 H120 Rapier did it and a large paint blister blew up. Fortunately it subsided when the fuel dried off.
Still got the blessed cap here, on my desk.
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I wasna fu but just had plenty.