Strong smell of fuel

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steve2003rs6
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Strong smell of fuel

Post by steve2003rs6 » Thu Oct 14, 2021 2:01 pm

Just started getting a strong smell of fuel on initial startup. Only happens on first cold start after being parked up overnight.
Then it’s ok for rest of day.
It’s As if too much fuel fuel is being pumped in when the car is cold.

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Shoppinit
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Re: Strong smell of fuel

Post by Shoppinit » Thu Oct 14, 2021 2:18 pm

The mixture is very rich on cold start. Might be normal what you’re experiencing.
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: Strong smell of fuel

Post by steve2003rs6 » Thu Oct 14, 2021 2:33 pm

Thanks Ben. Haven’t noticed it before now for a long time.
Thankfully it’s only the first start in the morning. Then it’s ok for the rest of the day.
But it is a really strong smell.
Far too strong to live with.

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partymonkey
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Re: Strong smell of fuel

Post by partymonkey » Thu Oct 14, 2021 5:45 pm

Different fuel brand to what you usually fill with? I'm no fuel expert but believe the different brands have varying concoctions/concentrations of additives, particularly octane enhancers.
These *might* affect the intensity of the smell.

Recent weeks events have resulted in me deviating from Momentum simply to get some fuel and I'm convinced the VPower/Ultimate combination was less smelly on cold start up... Could be all in my mind though...
Jon - RS4 B9

steve2003rs6
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Re: Strong smell of fuel

Post by steve2003rs6 » Thu Oct 14, 2021 11:21 pm

Very good point. I always use vpower. This is the first time I couldn’t get any due to the shortage.
So filled up with Tesco 99 octane as I was getting low.
Hopefully vpower available when I next fill up.

srichards
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Re: Strong smell of fuel

Post by srichards » Fri Oct 15, 2021 8:28 am

Is the smell from the exhaust or coming inside the car from the engine bay?

steve2003rs6
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Re: Strong smell of fuel

Post by steve2003rs6 » Fri Oct 15, 2021 11:40 am

Suz. Its definitely coming from the engine bay and into the interior.
However started up this morning and no smell of petrol.
Christine fixed herself again. Hopefully ?

srichards
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Re: Strong smell of fuel

Post by srichards » Fri Oct 15, 2021 11:44 am

They are a mystery it has to be said!

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Shoppinit
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Re: Strong smell of fuel

Post by Shoppinit » Fri Oct 15, 2021 11:50 am

Oh, if it’s coming from the engine bay then you’ve got a leak. Could be fuel line, pressure regulator (my money is on this) or leaky exhaust manifold.
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: Strong smell of fuel

Post by steve2003rs6 » Fri Oct 15, 2021 12:06 pm

Cheers for the responses.
Will monitor it. As I said no petrol smell this morning.

steve2003rs6
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Re: Strong smell of fuel

Post by steve2003rs6 » Sat Oct 16, 2021 3:45 pm

Still no strong petrol smell on startup. Let’s hope it was a 1 off.

steve2003rs6
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Re: Strong smell of fuel

Post by steve2003rs6 » Wed Oct 20, 2021 1:57 pm

Ditto. Still no smell.
Just wondering can you overfill with fuel ?
Filled it to the top then kept going to round it up to the nearest pound.

Mark-RS
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Re: Strong smell of fuel

Post by Mark-RS » Wed Oct 20, 2021 2:46 pm

Is there an overflow on it ? That would allow excess fuel to trickle out on overfill ?

steve2003rs6
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Re: Strong smell of fuel

Post by steve2003rs6 » Wed Oct 20, 2021 3:28 pm

Hi mark. Don’t know is the answer.
Just going to monitor it for now.
Only happened when I had a very full tank of fuel and on initial cold start.
Since then Nothing.

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