Reconditioned Peugeot Boxer Turbo

5 diesel engine families, 5 distinct turbos: the recurring failures of the Boxer

On the Peugeot Boxer, the turbo is one of the most well-documented weak points, regardless of the generation. The 2.0 TD / HDi (DW10TD, DW10UTD) engines accumulate failures linked to insufficient lubrication on start-up — a direct consequence of degraded oil or missed service intervals. On the 2.8 HDi (RHV, S9W700, S9W702, codes 8140.43S and 8140.63), failures tend to affect the bearings and sump gasket sealing, compounded by inlet tract fouling — a common issue on a van subjected to frequent short urban cycles. In both cases, the symptoms are similar: blue or black exhaust smoke, whistling under load, and a marked drop in power. A failed turbo on these engines does not always give warning gradually: the failure can be sudden.

Newer engines: 2.0 BlueHDi and 2.3 BlueHDi / MJTD — a different picture

The 2.0 BlueHDi 110 and 130 (AHM, AHN, AHP — codes DW10FUE, DW10FUD, DW10FUC) and 2.3 BlueHDi 140 / MJTD 138 (F1AGL4113) generations are fitted with variable-geometry turbos whose actuator is sensitive to fouling of the turbine vanes — a problem made worse by a blocked or excessively delayed DPF regeneration. The resulting power loss is accompanied by the vehicle entering limp mode, which can be difficult to distinguish from an electronic fault without prior diagnostic work.

Identify the correct reference before ordering

Engine capacity alone is not enough: the same 2.0 HDi can take turbos with radically different manufacturer references depending on the exact engine code. This guide covers references such as 53039880061, 49135-05050, 877674-5004S, 53039880521 and 49377-07052, which are not interchangeable. Checking the engine code stamped on the block — not just the stated power output — is essential to avoid ordering the wrong part. All turbos listed here are new.