NightHawk47

The 52a code is only an informational code designed to activate at a certain distance; it does not indicate a malfunction with the DPF. Utilize diagnostics to inform the vehicle about the new DPF installation and then erase the code. The 4afb refers to the brake vacuum pressure sensor, used in the stop-start system. I presume you are experiencing an issue with the stop-start mechanism? A prevalent issue necessitating the replacement of the sensor on the servo. I resolved the issue with the 9520 steering angle sensor on my previous E92 by disassembling the top steering column to clean the optical ring, followed by recalibrating the angle sensor.

Have you inspected the pollen filter for dirt or obstruction?

A multitude of components is compatible with diverse models. I often see instances where Aston components priced at hundreds of pounds are identical to Ford parts that cost £15. Manufacturers do not produce these components; they design in accordance with market availability. Consider bulbs, O-rings, oil filters, and, of course, brake pads. At the age of 18, I purchased brake pads for my 3.0 litre Capri. The cost was £25. The pads were same for both the 2-liter and the 1.6-liter models. However, priced at £20 and £12, respectively. Identical pads, identical box, different number; they were also compatible with Granada and Cortina models. Another client, a self-employed mechanic, found amusement in my uninformed purchase.