DPF and EGR cooler faults on 2.0 TDCi cars
- Typically appears
- 70,000+ miles
- What to inspect
- Warm up fully, check for warnings and inspect coolant level

A 2015 Ford S-Max is now 11 years old, so an average example has covered around 148,500 miles. This is the first model year of the generation · early-build cars carry the highest share of teething faults and the most recall activity, so check the service history for completed recall work. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2015 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
The 2015 Ford S-Max is 11 years old, so an average example has covered roughly 148,500 miles. At that mileage 6 of the documented faults are already due, so check those first.
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Build the inspection planDocumented onset mileage is at or below the ~149k miles an average 2015 car has covered.
DPF and EGR cooler faults on 2.0 TDCi cars
Powershift automatic shudder and harsh engagement
Front bushes and drop links knocking
Low oil pressure warning due to wet timing belt degradation blocking the oil pickup strainer.
Coolant intrusion into cylinders causing cold-start misfires and unexplained coolant loss.
Electronic Parking Brake (EPB) failing to release due to chafed wiring loom near the rear trailing arms.
Age, electronics and build-related issues that are not mileage-driven.
SYNC infotainment freezing and reversing camera faults
Ford Dynamic LED headlight daytime running lights (DRLs) yellowing, flickering, or failing completely.
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Build my inspection planFamilies who refuse to drive an MPV and private hire operators wanting space with pace.
A shuddering Powershift is. Test it from cold and price accordingly.
Seven usable seats with full service history and a recent cambelt on diesel cars.
The pre-2018 2.0 TDCi is generally the most robust unit, provided it sees regular motorway use to keep the DPF clear. The later 2.0 EcoBlue introduced wet-belt complications, while the 1.5 EcoBoost can suffer from coolant issues under heavy loads. The 2.5 FHEV hybrid is proving reliable but commands a significant premium.
The Mk2 S-Max features an Easy Fold system, allowing the second-row seats to slide and tilt forward for reasonable access. However, the third row is strictly for children or short journeys for adults due to limited legroom and a high floor. Boot space is severely restricted to 285 litres when deployed.
Most Mk2 S-Max models require servicing every 12,500 miles or 12 months. However, the 2.0 EcoBlue diesel engines feature an intelligent oil life monitor that may request oil changes much sooner, especially if the vehicle is subjected to frequent short journeys or interrupted regenerations. Always check the service history for strict adherence.
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