Parameter Injector PDE

Hello,

It turned out that all 5 Power Distribution Units (PDUs) in my T5 had an electrical defect (BIP signal).

Five brand new nozzles, directly from Bosch, arrived at the bus depot today. After the installation, I wanted to enter the injector parameters into the engine control unit.

To my knowledge, this should work with a login to unlock the customization options in the engine control unit. In another thread, it was mentioned that channels 71 and above were used for adjustment, but this was for an Audi A4.

The channels, however, are not available to me. I then searched all the channels up to 150, but unfortunately, without success.

Can someone tell me how to update the 5-digit value in the engine control unit (ECU) of a T5 manufactured in December 2005 with an AXD engine?

Hi Andreas!

The AXD is a PD motor in which... W. does not need to be trained on PDEs, unlike the CR motor.

It is important that the same generation of PDE (Pressure Drop Element) components are used again!

Regarding your story about having 5 defective PDUs at the same time, I find that hard to believe...
Have you previously created a log for the MWB models 13/18/23, and can you upload it here?

Best regards from Passau!

Nozzles with different part numbers were used (instead of 0414720210, the part number 0986441561 was used; and instead of 07Z130073F, the part number 07Z130073FX was used). According to Bosch, these nozzles are the correct ones, as the part number was likely changed at some point.

It still seems very strange to me that all 5 elements are defective .
The background information can be found here: /viewtopic.php?t=29744

After that, all 5 components were disassembled and sent to Bosch. They then inspected 3 of the nozzles for a fee. After discussing it with me, we decided not to inspect the remaining 2, as it was very likely that they had the same defect. For each item, there was also a testing fee of at least 80 euros.

I'm just wondering how the engine was running perfectly fine before all this happened, aside from the issue with the PDE seals. A mechanical defect would be explainable, but an electrical defect, and for all of them at the same time?

...but well, the nozzles went through various hands, and I hadn't written down the numbers of the nozzles before giving them to other people .

Hello Andreas,

The "BIP signal" is nothing more than the current flow through a simple coil. By observing the current flow within an injection period, it is possible to determine when the solenoid valve in the PDE closes and the injection process begins.

These solenoid valves, like the nozzle mechanics in a PDE (pump-nozzle distributor), are subject to a certain degree of wear.

As long as the solenoid coil of the solenoid valve is electrically sound and the solenoid valve can open and close, a current (BIP) will be measurable. Please note that the respective circuits do not only consist of the solenoid coil of the magnetic valve, but also of its entire wiring up to the engine control unit.

Best regards, Rainer.