Breakdown

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Fri Nov 08, 2024 7:50 pm

No Ben. Still the old fuel tank pump.
It’s probably finally packed up.

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Fri Nov 08, 2024 7:55 pm

Sounds like it. Try not to get too depressed. Have some more weird pizza and wash it down with a decent whisky.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Fri Nov 08, 2024 8:15 pm

That was a special mixed kebab Ben.
It went down really nicely.
As did the scotch.

Watched a video on how to change the in tank fuel pump. Think I will pass on that one.
Need to get some help.

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Fri Nov 08, 2024 8:33 pm

I replaced the in-tank pump in my Volvo. It was an utter ball ache of a job. All the interior had to come out from behind the front seats.

I think the RS6 will be easier.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Sat Nov 09, 2024 10:27 am

Yes mate. Access is under the rear seat.
Only other thing I can think of is a duff fuel pressure regulator ?

Still unable to start the car. Hopefully get some help today.
No one turned up yesterday.

srichards
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Re: Breakdown

Post by srichards » Sat Nov 09, 2024 10:31 am

Or fuel pump relay perhaps?

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Sat Nov 09, 2024 10:31 am

Yeah, could be a duff fuel regulator. But it sounds more like your external pump is cavitating which would imply an upstream problem rather than a downstream problem.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Sat Nov 09, 2024 10:40 am

srichards wrote:
Sat Nov 09, 2024 10:31 am
Or fuel pump relay perhaps?
Maybe. I don't think so given the preceding symptoms. It's quite easy to check though.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Re: Breakdown

Post by TOPMAN » Sat Nov 09, 2024 10:48 am

Shoppinit wrote:Yeah, could be a duff fuel regulator. But it sounds more like your external pump is cavitating which would imply an upstream problem rather than a downstream problem.
Yep - this is the culprit in my opinion…


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Daytona RS6 C5 Avant. BRV Plus Engine, 550cc Injectors, Custom Tune, DO88 Silicone Pipework, Waggers, Hybrid Turbos, Direnza DownPipes with 200 CEL CATS, Milltek Exhaust, Sonnax Modified Valve Body, Uprated Clutches, Uprated Torque Convertor, R8 Carbon Ceramics, K&W v1, Exclusive Interior, Creations Motorsport Billet Coolant Cap and PCV Valve (woohoo)

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Re: Breakdown

Post by steve2003rs6 » Sat Nov 09, 2024 12:02 pm

IMG_0361.jpeg

Now to see if I can get it out and the replacement in.

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Re: Breakdown

Post by steve2003rs6 » Sat Nov 09, 2024 12:12 pm

IMG_0362.png

Came across this.
Anyone know its location.

IMO it’s too cheap. Will look for a OEM One.
Last edited by steve2003rs6 on Sat Nov 09, 2024 1:00 pm, edited 1 time in total.

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Sat Nov 09, 2024 12:31 pm

Engine bay just before the fuel rail for the injectors.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

TOPMAN
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Re: Breakdown

Post by TOPMAN » Sat Nov 09, 2024 12:43 pm

steve2003rs6 wrote:
IMG_0362.png

Came across this.
Anyone know its location.
In my experience they rarely go bad. The plastic filter can break but it still functions if broken. I recently change the O rings as a precaution, which is a kit for a couple of quid. Mine is from 2004 and the O rings were in good shape.
Just make sure you buy the 4.0 bar version as other versions exist. The pressure is stamped into the body.
Here in my picture, you can see both the Bosch and Audi part numbers :-)Image


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Daytona RS6 C5 Avant. BRV Plus Engine, 550cc Injectors, Custom Tune, DO88 Silicone Pipework, Waggers, Hybrid Turbos, Direnza DownPipes with 200 CEL CATS, Milltek Exhaust, Sonnax Modified Valve Body, Uprated Clutches, Uprated Torque Convertor, R8 Carbon Ceramics, K&W v1, Exclusive Interior, Creations Motorsport Billet Coolant Cap and PCV Valve (woohoo)

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Re: Breakdown

Post by TOPMAN » Sat Nov 09, 2024 12:50 pm

As Ben has mentioned, it’s on the fuel rail (circled).
Pretty easy job to change once the airbox has been removed. Remember to release the fuel pressure otherwise you will get an eye full ;-)

Image


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Daytona RS6 C5 Avant. BRV Plus Engine, 550cc Injectors, Custom Tune, DO88 Silicone Pipework, Waggers, Hybrid Turbos, Direnza DownPipes with 200 CEL CATS, Milltek Exhaust, Sonnax Modified Valve Body, Uprated Clutches, Uprated Torque Convertor, R8 Carbon Ceramics, K&W v1, Exclusive Interior, Creations Motorsport Billet Coolant Cap and PCV Valve (woohoo)

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Sat Nov 09, 2024 12:57 pm

IMG_0363.png


Cheers Ben/craig.
The one I am about to order is 4 bar rated.

If it is faulty then I have it available.
If it’s not faulty then it will be replaced during next full service.

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