Here are some common symptoms that hint towards having a bad VVT switch: 1. Rough engine idle. Proper ignition timing is crucial to ensuring that your engine runs smooth and efficient. When the vehicle is under load, the VVT switch will monitor the engine and send information to the computer to adjust the valve timing as needed. EGR Valve for Ford Focus C-Max DM2 Focus II Mondeo IV S-Max WA6 1.8 4M5Q9424CA (Fits: Ford Transit Connect 2008) Genuine Ford Focus Mk1 Transit Connect 1.8 TDCi The 1.8 TDCi is usually happy to take an EGR blanking plate and doesn't throw an EML, mines been blanked for about 5 years and I've not had it trigger the EML once due to the EGR. *Edit - the thread I was thinking of is here and contains a PDF from @Tdci-Peter that details the repair process for the internal EGR mechanism* For example, quite easily (by today's standards) Ford Mondeo III with 2.0 Duratec engine consumes 12 - 13 l / 100 km in the city and has an average fuel consumption of 9 l / 100 km. Those who believe that high consumption can be avoided by installing "gas" will be disappointed. The Duratec engine family has too soft valve seats. I suspect that it might be a clogged EGR-valve, but my car has only done 60.000 miles. I live in Norway, so my car came with a auxiliary heater, but the heater has not been working for almost a year. Can the heater have anything to do with it? It's a 2007 Focus 1.8 Tdci Titanium, btw, if this is relevant in any way. Ford Focus C Max 04-09 2.0 TDCI Diesel EGR Valve & Cooler 9645689780 272056 (Fits: Ford Focus C-Max 2006) £36.00. Free postage. or Best Offer. I drive a 2003 Focus 1.8 TDCI with 115k miles on the clock and all I did was disconnect the vacuum hose from the valve and bunged an old bolt in the rubber hose. The car ran perfectly before this and still does, I only did it as a precautionary measure after reading so many horror stories. Hey guys here is a short video on how to remove egr cooling on a 1.8 TDCI engine hope you like the video like share and subscribe#fordfocus. WcDSZ.