Reconditioned Ford S-Max Engine

14 engine codes for the S-Max 2006–2014: diesel or petrol, which is yours?

The S-Max (2006–2014) covers two engine families available as a bare engine: the 1.8 TDCi diesel and the 2.0 Ti-VCT petrol. These two families share no parts whatsoever, and within each family, engine codes identify distinct block variants. It is the code stamped on the engine — not the engine capacity alone — that determines the exact reference to order.

The 10 codes of the 1.8 TDCi: a diesel family with many variants

The 1.8 TDCi accounts for the bulk of the catalogue with ten distinct codes: KKDA, KKDB, QYBA, QYWA, RWPA, RWPC, RWPD, HCPC, FFBA and 18DIT. These codes correspond to successive evolutions of the diesel block over the model's lifetime. Two blocks carrying different codes are not directly interchangeable, even if the engine capacity and quoted power output appear identical. Before placing any order, it is essential to physically locate and read the code directly on the engine.

The 4 codes of the 2.0 Ti-VCT: the petrol engine in four variants

The 2.0 Ti-VCT petrol block comes in four codes: AOBA, AOBC, AOWA and N4JB. This naturally aspirated engine with variable valve timing is considerably less common on the S-Max than the diesel, which is reflected in the number of references available. Here too, the engine code remains the only reliable selection criterion: two petrol S-Max of the same year may carry blocks with different codes depending on the market or original trim level.