Peugeot Boxer Turbo

5 engine variants, one common weak point: the turbo

On the Peugeot Boxer, regardless of the generation, the turbo is one of the first components to fail. The causes are well documented: degraded oil or oil changed too late, a blocked diesel particulate filter creating back pressure, or a foreign object drawn in through a cracked hose. The symptoms are always much the same — a high-pitched whistle under acceleration, blue or black exhaust smoke, loss of power under load — and they almost invariably lead to turbo replacement. Before refitting, it is essential to identify and rectify the root cause of the failure: a new turbo fitted to an engine whose oil supply circuit has not been checked will last no longer than the one it replaced.

Five engine families, five distinct references

The diesel Boxer covers five powertrain groups with very different architectures, and the turbos are not interchangeable between them. The 2.0 TD / 2.0 HDi 84 hp (codes DW10TD, DW10UTD, RHV) uses a fixed-geometry turbo; the 2.8 HDi 126 hp / 128 hp (codes 8140.43S, 8140.63) is an Iveco-sourced unit, entirely unrelated to the 2.8 HDi Peugeot (codes S9W700, S9W702) fitted to other versions. These two 2.8 engines are distinct and their turbos are not interchangeable. The 2.0 BlueHDi 110 / 130 comes in three engine codes — AHM (DW10FUE), AHN (DW10FUD), AHP (DW10FUC) — corresponding to different power outputs and different turbo references. The 2.3 BlueHDi 140 / MJTD 138 (code F1AGL4113) is a Fiat/PSA variable-geometry unit with an electronic actuator, prone to carbon deposits on the vanes.

New turbos: manufacturer references and equivalents

All turbos listed on this page are new parts, sold without any prior reconditioning. They are available under the original manufacturer reference or under approved equivalent references — for example 53039880061 or 0375G7 for the 2.0 HDi 84 hp, 49135-05050 for the 2.8 HDi Iveco, 877674-5004S for the 2.3 BlueHDi. These are direct sales: no old unit is required in return. The engine code, stamped on the block, remains the only reliable criterion for selecting the correct reference on a van that has been offered with so many different engines throughout its production run.