Read fault codes, location Duisburg, Audi A6 V6 TDI, year of manufacture 01

Hello,

Who can I get to read the fault codes from my Audi in Duisburg?
I'm having a problem with my diesel pump. However, I don't want to go to Audi, as I've had bad experiences with them. Sell more than you need.

Best regards
Rocco

This could also include stores like ATU, or similar shops. I suspect, however, that you would like more information (e.g., MWB, start date of funding).

The friend can also read the fault memory even when you are standing next to him. Then he will tell you the errors and you can go back. Usually free.

How do you get to the diesel pump? What does your VP44 then (not) do?

Hello,

I am having problems with the fuel pump, which is located in the tank.
The reason was that I had run out of fuel, refilled the tank, and unfortunately, the car no longer started.
Pump removed from the tank, pump is working 100%, unfortunately, no diesel is coming out at the top connection to the diesel line.
I then detached the hose from the pump and blew through it. Bubbles are appearing on the yellow filter, which is located within the system connected to the pump.
I have read that a check valve is attached to one of these hoses, and it might be faulty.
How can the pump actually pump the diesel forward, since the line from the pump is not directly connected to the flange? How can the pump then generate the pressure or pump the diesel forward?


I have now heard that the vehicle has a protective shutdown feature that turns off the pump if there is not enough diesel in the tank.

Is that correct?

Best regards
Rocco

There is a safety shut-off. Maybe you actually drove your tank completely empty. The VP44 doesn't self-vent. Also, it doesn't have a very strong suction power. I had the opportunity to have a new diesel filter installed and the venting done by a Bosch service using a venting device. It probably costs around EUR 50.00 in labor costs, including. Filter installation.

EDIT:
I don't expect much from the error memory, but Bosch service could also take care of it.

... and driving a VP44 __really__ dry usually means killing it.

The shutdown function is designed to stop the engine before it's too late. ... and you'll need a new pump.

m;

Yes, but as written above, no diesel comes out of the pump at the back of the tank, what is the purpose of the pump inside the tank?
Had both valves open on the right and left sides, so there is enough diesel in the tank.
There is no diesel coming to the front of the pump, I had loosened the hoses at the front and kept them in a container, the pump at the front is not sucking in diesel.
According to Audi, this should not be the case either.

?????

The pump in the tank only fills a kind of intermediate container. If it's running, that's fine. The VP44 needs to be bled; it doesn't create so much vacuum (when empty) that it sucks in diesel again. The suction function only works if it is filled without air.

The Bosch service, or the "Friendly" service, has a device that allows you to fill the pump with diesel. Then it will work again.

I will definitely not try any further, because as dieselmartin already writes, the VP44 engine is usually not very robust (but it does cost a lot of money).

Normally, the protective mechanism ensures that it doesn't even get that far. What happened to you, I can't say either.

So, it's not enough to fill the hose from the pump with a funnel and diesel, and then hold the hose in a container full of diesel?

Best regards
Rocco

I'm afraid I don't know. I hope for your sake that the answer is no. Otherwise, you can save on a new pump.

So, rufen Sie den Bosch-Service an und lassen Sie die Pumpe befüllen?

How do they do that?

Somehow, using (high) vacuum. Search the forum. "VP44 drain" for example brings up the following link:
/viewtopic.php?t=7228&highlight=vp44+entl%FCften

Thank you...

so, ich kann immer noch hoffen, dass nichts defekt ist.
I'm going to try to install a pump at the return, at the front, that will suck up the diesel through the return and thus push the diesel through the lines, which will also vent the system, or?

I checked the pump in the tank; it's floating in the diesel.


Best regards
Rocco

In my opinion, it's already correct, but I just need to create enough vacuum. That's probably the problem. If successful, please publish

Personally, I wouldn't want to risk it for EUR 50.00, and I'd rather be safe. When I see the words "Air" and "VP44" appear, it immediately raises my suspicions.

Okay...

I connected a normal petrol pump to the system yesterday evening and then let it pump diesel through. Then I used the cold start spray... 1... 2... and on the third attempt, it even started.


So, it must have been a spark!

Aha, super! While I don't currently have a fuel pump lying around, I plan to get one eventually.

Did you have to keep the fuel pump running during the starting process (so that the VP also spins), or did it start pumping even with the ignition off?

Greetings,
Tom

I connected the pump directly to the battery and let it run for a while. You can see how the air bubbles move through the inlet towards the pump.
then with startpi,ot started, previously I had turned off the pump, not discharged...due to re-introducing air...

I have also mounted the pump on the return line.