The Ford Focus Mk2 (DA3), launched in 2004 and facelifted in 2008 ('Kinetic Design'), sits on the highly acclaimed Ford C1 platform (shared with the Mazda 3 BK and Volvo S40/V50). It set the benchmark for C-segment driving dynamics, offering class-leading steering feel and chassis balance. While petrol engines are generally robust, the diesel lineup—co-developed with PSA (Peugeot-Citroën) and heavily featured in the European market—presents a mixed bag of excellent fuel economy and significant reliability pitfalls. The Mk2 is a practical, spacious, and rewarding car to drive, but specific diesel variants require extreme caution and meticulous maintenance history.
The Ford Focus Mk2 is a brilliant driver's car let down by a few specific, well-documented flaws. If you are looking for a diesel, the 2.0 TDCi is by far the best choice, offering robust reliability and great performance. The 1.8 TDCi is acceptable but unrefined. Avoid the 1.6 TDCi unless you are buying from an enthusiast who has already removed the turbo oil feed mesh filter and replaced the injector seals. If you experience bizarre electrical faults, do not replace the ECU; have the instrument cluster resoldered. Overall, a well-maintained 2.0 TDCi or a petrol variant is a fantastic, budget-friendly buy.