Ford Focus Mk3 2.0 TDCi

The Focus Mk3 uses an electric power-assisted steering rack with an integrated motor and control module. This is a well-documented weak point on 2011-2015 models. Failure modes include complete loss of power assistance (steering becomes very heavy without warning), intermittent assistance on startup, or the message 'Power Steering Fault Service Required' on the dashboard. Water ingress through the column side of the rack is a common trigger, corroding internal electronics. The typical fault code is U3000:49 or U3000:53. Repair requires replacing the complete steering rack assembly including motor and ECU, as the components are integrated. Parts cost approximately 600-1,200 euros for a remanufactured unit, plus 3-5 hours of labour since the subframe must be partially lowered. Total repair at an independent garage runs 1,200-1,800 euros, rising to 2,500 euros at a Ford dealer with a new OEM rack. Post-2015 facelift cars appear to have a lower failure rate, possibly due to improved sealing.

The 2.0 TDCi produces up to 370 Nm of torque, which puts significant strain on the dual mass flywheel. Symptoms of DMF failure include excessive vibration at idle, rattling noises (especially when the clutch pedal is depressed), and eventually clutch slip. Typical failure occurs between 120,000-180,000 km depending on driving style. Towing, frequent hill starts, and aggressive driving accelerate wear. When replacing the DMF, it is standard practice to also replace the clutch disc, pressure plate, and concentric slave cylinder (CSC) at the same time, as access requires gearbox removal. A complete DMF, clutch kit, and CSC replacement at an independent garage costs 1,000-1,400 euros. At a Ford dealer, expect 1,600-2,000 euros. The DMF itself costs approximately 400-600 euros in parts. Some owners have converted to a solid flywheel conversion, but this increases drivetrain harshness and is not recommended for Powershift automatic models.

The DPF needs regular regeneration (burning off accumulated soot at high exhaust temperatures), which requires sustained driving at motorway speeds for 15-20 minutes. Cars used primarily for short urban trips fail to complete regeneration cycles, and each incomplete attempt dumps unburnt diesel into the engine oil, raising the oil level and diluting it. Symptoms include the DPF warning light, loss of power, and eventually limp mode. The fuel vaporiser (sometimes called the 5th injector) that aids regeneration is also prone to clogging around 100,000 km, costing approximately 180-300 euros to replace. Professional DPF cleaning costs 300-500 euros. A new DPF unit costs 800-1,500 euros fitted. In severe cases where the oil has been heavily diluted with diesel, an engine oil flush and fresh oil change are also necessary. Ford recommends checking oil level regularly - if it is significantly above the maximum mark, diesel contamination from failed regenerations is likely.

The EGR valve on the 2.0 TDCi is electronically controlled and requires programming to the vehicle after replacement. Carbon buildup from recirculated exhaust gases gradually restricts the valve, leading to rough idle, hesitation, random power loss while driving, and fault codes P1335 (EGR position sensor) and P2263 (turbo boost pressure). The problem is accelerated by gentle driving and short trips. Some owners find that regular spirited driving in the lower gears with high RPM helps keep the valve clear as a preventive measure. A new EGR valve with programming costs 400-700 euros at an independent specialist, or up to 1,000 euros at a Ford dealer. Cleaning the valve can be attempted (approximately 150-250 euros) but is often a temporary fix. The EGR cooler can also develop internal leaks, mixing coolant with exhaust gases.

Turbocharger failure on the 2.0 TDCi is usually a secondary issue caused by oil supply problems (blocked oil feed, degraded oil) or carbon contamination from EGR issues, rather than an inherent turbo defect. Symptoms include loss of power, black or blue exhaust smoke, excessive turbo whine, and engine management warning lights. The turbo actuator can also stick from carbon buildup, particularly on gently driven cars, causing boost pressure faults without actual turbo damage. A new turbocharger fitted at an independent specialist costs 1,200-1,800 euros. A refurbished unit reduces this to 800-1,200 euros. Ford dealer pricing can reach 2,500 euros. When replacing the turbo, the oil feed and return lines should always be replaced or cleaned, and a fresh oil change performed, to prevent repeat failure.

The Siemens/Continental piezo injectors used in the 2.0 TDCi are generally durable and designed to last over 160,000 km (100,000 miles). However, poor fuel quality, infrequent fuel filter changes, or water contamination can accelerate wear. A single failed injector typically costs 350-600 euros to replace including recoding the ECU with the new injector's correction codes (stamped on the injector body). If multiple injectors fail at once (common on neglected cars), costs can reach 1,500-2,500 euros for a full set. Refurbished injectors are available for approximately 190 euros each but quality varies. Symptoms include rough idle, misfiring, excessive smoke, and difficulty starting.

The Powershift 6DCT450 (MPS6) used with the 2.0 TDCi is a wet-clutch dual-clutch automatic, fundamentally different from the problematic dry-clutch DPS6 in petrol Focus models. The wet-clutch design is far more robust, also used in Volvo and the Focus ST diesel. However, it requires transmission fluid and filter changes every 3 years or 60,000 km. If this maintenance is neglected, metallic swarf from the clutch packs circulates through the mechatronic unit, clogging solenoids and sensors. This causes jerky shifts, shuddering, and eventually clutch slip. A fluid and filter change costs 250-400 euros. If the mechatronic unit is already contaminated, repair costs 1,500-2,000 euros. Full clutch replacement in the 6DCT450 runs 2,000-3,000 euros. Before buying a Powershift model, verify the fluid change history - if it cannot be confirmed, walk away.