Hi,

 

First post, sorry if it's help needed...

After a disastrous edc short during a routine service (not by my long time mechanic) I had the EDC unit repaired but I've had continuous running problems since May.

 

The car is now with a different mechanic who tells me the injection pump itself is damaged so I need a new/refurbished unit.

 

I'm having no luck in finding the pump part number I need so I can buy a new pump, so could anyone help with what the correct part number I need please?

 

2003 A4 avant 2.5tdi quattro. It's an auto if that makes any difference.

 

Many thanks in advance

Richard

I have not used them myself, but some folk here recommend Parts In Motion.

3 hours ago, richard j thomas said:

Hi,

 

First post, sorry if it's help needed...

After a disastrous edc short during a routine service (not by my long time mechanic) I had the EDC unit repaired but I've had continuous running problems since May.

 

The car is now with a different mechanic who tells me the injection pump itself is damaged so I need a new/refurbished unit.

 

I'm having no luck in finding the pump part number I need so I can buy a new pump, so could anyone help with what the correct part number I need please?

 

2003 A4 avant 2.5tdi quattro. It's an auto if that makes any difference.

 

Many thanks in advance

Richard

Hi have you checked the lift pump in the tank, if you monitor its volume at idle and its around 5-600 the pump may well be on its way out.

Steve.

On 9/1/2025 at 3:05 PM, Stevey Y said:

Hi have you checked the lift pump in the tank, if you monitor its volume at idle and its around 5-600 the pump may well be on its way out.

Steve.

Hi Steve,

Thanks for the reply.

I’m not entirely sure what the garage that currently has the car has checked to be honest, other than they’ve said the injection pump is damaged.

Double-check here based on engine number + auto. Price will be prohibitive - so source second-hand.

https://www.lllparts.co.uk/catalogs/audi/RDW/A4Q/249/1/130/130025

48 minutes ago, spartacus 68 said:

Double-check here based on engine number + auto. Price will be prohibitive - so source second-hand.

https://www.lllparts.co.uk/catalogs/audi/RDW/A4Q/249/1/130/130025

Rich,

That's helped massively, thank you.

My engine code is BAU, pump numbers are 059130106 and 059130106LX, could anyone explain the difference if any please?

2 hours ago, richard j thomas said:

Rich,

That's helped massively, thank you.

My engine code is BAU, pump numbers are 059130106 and 059130106LX, could anyone explain the difference if any please?

There's a diesel injection specialist in Aberdeen. Used them years ago - Airylea Motors. Very knowledgeable - they work on injection pumps across cars, marine, agriculture, etc. Had an old Audi 80 there years ago. Speak to them as the old pump might be able to be refurbished. https://www.airyleamotors.com/

A 1.9TDI is completely different to V6 in terms of access and how to remove. I used to have a 2.5 V6 quattro (150PS). Cracking cars.

Edited September 5, 2025Sep 5 by spartacus 68