Ford S-MAX 2.0 TDCi Mk2

The S-MAX Mk2 2.0 TDCi uses an active DPF system that requires sustained motorway driving for regeneration. Consistent short-trip use prevents regeneration from completing, causing progressive soot accumulation. Symptoms include DPF warning light, reduced power (limp mode), and increased fuel consumption. A common cheap fix is replacing the failed DPF differential pressure sensor hoses (rubber hoses that become brittle from heat), which costs under €100. Professional DPF cleaning runs €250-500. If the filter is beyond recovery, replacement costs €1,000-1,800 depending on OEM vs aftermarket. Prevention is straightforward: a 30-minute motorway drive every 300-400 km of urban use.

The EGR valve on the 2.0 TDCi accumulates carbon deposits over time, particularly on cars used for urban driving. Symptoms include rough idle, power loss, check engine light, and sometimes the engine going into limp mode. Cleaning the valve (€100-200 at a specialist) can resolve the issue, but if the valve is seized or the housing is damaged, full replacement is needed. Ford dealer replacement costs around €350-600. The issue typically becomes noticeable between 80,000 and 130,000 km. Regular motorway driving and using quality fuel help slow the buildup.

From 2018 onward, the S-MAX switched to the 2.0 EcoBlue engine which uses a wet timing belt running inside the engine, lubricated by engine oil. This belt can degrade prematurely if the engine oil is contaminated or not changed on schedule, shedding rubber particles into the oil that can block the oil pickup and cause catastrophic engine damage. Ford originally set the replacement interval at 10 years or 200,000 km, but independent specialists strongly recommend replacement at 6-7 years or 100,000-130,000 km. Replacement costs €1,000-1,500 at an independent specialist and €1,500-2,500 at a Ford dealer, as the job takes 10-12 hours of labor. Pre-2018 TDCi models use a conventional timing belt that is simpler and cheaper to replace.

The S-MAX Mk2 was available with a 6-speed PowerShift (6DCT450) wet-clutch automatic. While more reliable than the smaller dry-clutch DQ200/6DCT250 units that caused Ford's class-action lawsuits, the 6DCT450 still has documented issues. The plastic clutch spring damper guides are a known weak point, transferring all engine torque to the damper springs and eventually fracturing. Solenoid failures occur when gearbox oil is not changed regularly (recommended every 50,000-60,000 km), as debris from clutch and gear wear circulates and blocks solenoids. Symptoms include jerky shifts, banging into gear, transmission warning lights, and hesitation from standstill. Clutch replacement costs €1,200-1,800, while a full rebuild can reach €2,500-3,000. Manual gearbox cars do not have this issue.

Turbocharger problems can occur on higher-mileage S-MAX models, typically after 150,000-200,000 km. The electronic turbo actuator can stick due to carbon buildup or wear, causing loss of boost and limp mode. Ford does not sell the actuator separately, so a sticking actuator often means full turbo replacement. Specialist repair of the actuator alone costs €200-500, but if the turbo internals are worn, a remanufactured turbo fitted at an independent garage costs €800-1,200, while a new OEM unit at a Ford dealer can reach €2,000-2,500. Using quality engine oil and allowing proper warm-up/cool-down extends turbo life.

The 2.0 TDCi is known for fuel injector seal degradation over time. When the copper washer seals fail, diesel and exhaust gases escape past the seal during compression, creating a sticky black carbon buildup around the injectors sometimes called 'black death' in the diesel community. Early signs include a diesel smell in the engine bay and visible black residue around injector wells. If caught early, replacing the copper washers is a straightforward job costing €150-300. If left unchecked, the carbon buildup can damage the cylinder head seat, requiring machining (€400-800). Ford issued a specific recall for faulty injectors on vehicles built between February and September 2019.

Ford issued recall 20S75 covering S-MAX and Galaxy models built between 2015 and 2020. The rear suspension toe link bolts are prone to excessive corrosion, particularly in countries that use road salt heavily during winter. Over time, the corrosion reduces the bolt's load capacity, potentially leading to fracture. A fractured toe link while driving causes sudden changes in rear wheel alignment and can seriously affect vehicle handling. The recall fix replaces the original bolts with corrosion-resistant alternatives on both sides. Verify the recall has been completed before purchase. If not covered by recall, replacement costs €200-500 at a workshop including alignment.

The S-MAX is a heavy vehicle (1,650-1,800 kg) and the 2.0 TDCi produces strong torque, which accelerates wear on the dual-mass flywheel and clutch assembly compared to lighter models using the same engine. Symptoms of a failing DMF include rattling at idle (especially when warm), vibration during gear changes, and eventual clutch slip. Replacement of both the DMF and clutch together costs €800-1,200 at an independent garage and €1,200-1,600 at a Ford dealer. The job typically takes 4-6 hours. This is more of a wear item than a surprise failure, but the interval is shorter than many owners expect for a diesel engine.