
A DPF reading 400 per cent full: Mercedes A200 diesel
A Stourbridge customer brought this one in with a simple complaint: no power. The diagnostics gave a less simple answer. The diesel particulate filter was reading 400 per cent full, and that is not a number everyday driving produces. The exhaust temperature sensor that should have been managing the burn-off was dead, so the filter had blocked solid.
Rather than a new filter, the customer chose a secondhand unit that we had professionally cleaned, which saved a good deal of money. That went on with a new lambda sensor and a new exhaust temperature sensor, every fault code was cleared, and a road test confirmed it. Running perfectly.

