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VP34 Mengestellwerk: Disassembly Guide

 
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wolfi_b
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Post13-07-2005, 9:15    Subject: VP34 Mengestellwerk: Disassembly Guide Quote

Hi everyone!

"For some time now, I've been experiencing increasing instances of jerking or stuttering when driving at a constant speed or during light acceleration below 2000 RPM. I can rule out an overly rich fuel mixture, as the idle injection volume is 4mg."
Unfortunately, my ESP still has one potentiometer labeled as RWG. While there are already some slight markings visible on the grinding surface, it otherwise looks unremarkable. Measurements will follow.
That's why I wanted to clean the MSW, but I couldn't figure out how to disassemble it.

http://img346.echo.cx/img346/7357/ESP1.jpg
http://img346.echo.cx/img346/7729/ESP2.jpg

On newer ESP units with HDK sensors, there is a mounting screw on the "arm" that needs to be loosened. However, I don't have that screw on mine.
Does anyone know how the arm is attached? icon_confused.gif I hope it's not just pressed on.
Do you happen to have an exploded diagram of my ESP?
1993 Audi 80 B4 1Z
2004 Seat Leon 1M ASV


Translated on 02-10-2026, 9:12.
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Taxiratte
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Post14-07-2005, 11:06    Subject: VP34 Mengestellwerk: Disassembly Guide Quote

Check out the "TROUBLESHOOTING AND GUIDES" section.
Meistens: Passat (1/00,1,9L, 85KW PD, 280tkm)
Abgemeldet: Passat 32B (11/88, 1,6L, 40KW, 550tkm)


Translated on 02-10-2026, 9:13.
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wolfi_b
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Post14-07-2005, 13:10    Subject: VP34 Mengestellwerk: Disassembly Guide Quote

You haven't actually read and understood my text, have you?
1993 Audi 80 B4 1Z
2004 Seat Leon 1M ASV


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wolfi_b
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Post21-07-2005, 22:05    Subject: VP34 Mengestellwerk: Disassembly Guide Quote

Hey everyone!

I tried to make some progress today.
After I removed the lid, I noticed something interesting.

icon_smile_thumb_up.gif" color="red">Bitte keine Links zu externen Dateihostern! a) nerven die zusätzlich notwendigen Klicks, b) Wartezeit, Werbebanner/Werbepopups und notwendige Registrierungen, c) ist nach einiger Zeit die Datei weg und das Thema für andere Leser nutzlos!

Bitte nutze 'Attachment hinzufügen' bzw. das Upload Forum hier.

/img336/5823/ESP3.jpg" class="responsive" alt="http://img336.
" color="red">Bitte keine Links zu externen Dateihostern! a) nerven die zusätzlich notwendigen Klicks, b) Wartezeit, Werbebanner/Werbepopups und notwendige Registrierungen, c) ist nach einiger Zeit die Datei weg und das Thema für andere Leser nutzlos!

Bitte nutze 'Attachment hinzufügen' bzw. das Upload Forum hier.

/img336/5823/ESP3.jpg" onLoad="imgResize(this);" onMouseOver="imgCursor(this);" onClick="imgOpenResized(this);">

You can already see the chips on the measuring frame icon_cry.gif.

Unfortunately, it really seems like the arm is stuck. I've removed the electrical plate, and it does move then, but the arm is still stuck.

Does anyone of you have access to documents that could help me?

EDIT: Oh yes, the pump is actually a VP34. From what I've found, it was only available in the Audi 100 1T (which was the very first TDI) and in the Audi 80 up to the year 1994.
1993 Audi 80 B4 1Z
2004 Seat Leon 1M ASV


Translated on 02-10-2026, 9:14.
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Andi aus dem Ösiland
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Post22-07-2005, 12:53    Subject: VP34 Mengestellwerk: Disassembly Guide Quote

Audi 100 2.5TDI AAT hat auch VP34 bis Bj 5/94 (1. Generation)

Greetings,
Andi.


Translated on 02-10-2026, 9:15.
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