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Mercedes C350d W204: engine, gearbox and DPF work.

Llandow Tuning Team 1 min read

Mercedes C350d W204: engine, gearbox and DPF work.

The car responded to the Stage 1 calibration but smoked more than expected under load. Revising the map did not resolve it. We suspected turbo wear, potentially associated with the earlier blocked DPF; this remained a diagnosis to confirm.

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