Possible Issue - New Logs Added - Update 25/3/12

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
Ryan_Pestell
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Possible Issue - New Logs Added - Update 25/3/12

Post by Ryan_Pestell » Wed Feb 22, 2012 9:15 am

Recently i've noticed the car feel a bit flat after the intital torque surge.

Vagcom doesnt come up with any codes, last time i check about a week ago, other than an ittimitant short to ground on the engine fan, which is a bit odd, as it was supposedly replaced underwarrenty just under a year ago.

what to check for, could be fuel, as a few times i've used normal 95 rather than optimax or ultimate. (so possible ignition <beep> because of this?)

boost leaks?

could be that im used to it, but it just doesnt feel that strong after the initial surge, seem like the turbo's run out of puff.
Last edited by Ryan_Pestell on Sun Mar 25, 2012 1:10 pm, edited 2 times in total.
Daytona RS6+ Sold :(
Now Building a 500HP Lotus Exige

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Shoppinit
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Re: Possible Issue

Post by Shoppinit » Wed Feb 22, 2012 9:45 am

Could be a bad MAF or N75 or DVs. I consider those preventive maintenance on the RS6.

Could be a vacuum leak. That's do it.

Or could be leaky intercoolers. That'll sap your power.
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: Possible Issue

Post by Shoppinit » Wed Feb 22, 2012 9:46 am

Ryan_Pestell wrote:what to check for, could be fuel, as a few times i've used normal 95 rather than optimax or ultimate.
Are you mad?!
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."

Ryan_Pestell
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Re: Possible Issue

Post by Ryan_Pestell » Wed Feb 22, 2012 11:23 am

its only to potter around on, i dont use it if im going to go for a proper drive.
Daytona RS6+ Sold :(
Now Building a 500HP Lotus Exige

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Shoppinit
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Re: Possible Issue

Post by Shoppinit » Wed Feb 22, 2012 11:26 am

It's a false economy anyway. Car will do better mpg on 98.
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: Possible Issue

Post by Mr V10 » Wed Feb 22, 2012 12:33 pm

I've never put 95 in the RS6, Total premium is the worst it's got, and that was an emergency £20 as I didn't have time to go to Shell. I buy so much V Bastard Shell sent me a V Bastard card., currently spending £500 a month on V Bastard.
2009 Audi RS 6 Saloon V10 - 420mm Ceramics, Keyless, Soft Close, Adaptive Cruise, Glass Sunroof, Blinds, Twin Pane & UV, Freeview & DAB, High Beam Assist, MTM bits, Audi Exclusive Bits, MRC, Milltek, GYEF1 ASY2's, Bluetooth streaming music to AMI mod - 753PS, 1021 NM
2016 Audi S3 Saloon S-Tronic, Sepang, B&O, Tech Pack w/connect, 19" 5 Arm Wing Alloys, Comfort Pack, LED Light Pack - Company Car
1995 Audi A8 4.2 V8 quattro Sport

GarethRS
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Re: Possible Issue

Post by GarethRS » Wed Feb 22, 2012 10:09 pm

Shoppit.

Where did you get you N75 and DV's from, might change mine while I'm at it?

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Shoppinit
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Re: Possible Issue

Post by Shoppinit » Wed Feb 22, 2012 10:20 pm

Audi. But you can get them at TPS, grizz, virdee. They are not expensive items.
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."

Mr V10
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Re: Possible Issue

Post by Mr V10 » Wed Feb 22, 2012 10:26 pm

Reckon it's worth me taking a few spares across to Germany, Shop?
2009 Audi RS 6 Saloon V10 - 420mm Ceramics, Keyless, Soft Close, Adaptive Cruise, Glass Sunroof, Blinds, Twin Pane & UV, Freeview & DAB, High Beam Assist, MTM bits, Audi Exclusive Bits, MRC, Milltek, GYEF1 ASY2's, Bluetooth streaming music to AMI mod - 753PS, 1021 NM
2016 Audi S3 Saloon S-Tronic, Sepang, B&O, Tech Pack w/connect, 19" 5 Arm Wing Alloys, Comfort Pack, LED Light Pack - Company Car
1995 Audi A8 4.2 V8 quattro Sport

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Shoppinit
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Re: Possible Issue

Post by Shoppinit » Wed Feb 22, 2012 10:27 pm

Nah. As long as they are working. They are just the things that I would change if I didn't know when they were last done or had a doubt about the power.
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."

Mr V10
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Re: Possible Issue

Post by Mr V10 » Wed Feb 22, 2012 10:46 pm

I got Grizz to check mine and he said all is good, so I'll leave them then. Coilpacks worth taking, not a big issue on these are they? Although I know Amanda had one go. I'm going to rely on my low mileage and European breakdown cover. I am praying my alternator goes on the weekend so I can get that out of the way, rather then on the tunnel!
2009 Audi RS 6 Saloon V10 - 420mm Ceramics, Keyless, Soft Close, Adaptive Cruise, Glass Sunroof, Blinds, Twin Pane & UV, Freeview & DAB, High Beam Assist, MTM bits, Audi Exclusive Bits, MRC, Milltek, GYEF1 ASY2's, Bluetooth streaming music to AMI mod - 753PS, 1021 NM
2016 Audi S3 Saloon S-Tronic, Sepang, B&O, Tech Pack w/connect, 19" 5 Arm Wing Alloys, Comfort Pack, LED Light Pack - Company Car
1995 Audi A8 4.2 V8 quattro Sport

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Shoppinit
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Re: Possible Issue

Post by Shoppinit » Wed Feb 22, 2012 10:50 pm

Don't worry about it, then. Don't hear about coilpacks going too much on the RS6. Can happen, but then so can a lot of stuff.
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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Daveperc
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Re: Possible Issue

Post by Daveperc » Thu Feb 23, 2012 10:23 am

My coil packs all started to fail at about 130K miles (8 years). I had three go in the course of a month, so then had all the rest changed at one go.

Dave

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Shoppinit
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Re: Possible Issue

Post by Shoppinit » Thu Feb 23, 2012 10:27 am

How did you diagnose?
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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Daveperc
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Re: Possible Issue

Post by Daveperc » Thu Feb 23, 2012 10:29 am

Misfiring, especially at idle, plus Vagcom courtesy of my mate. Even told him which pack each time!

Dave

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