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FSI Carbon Buildup and Q5

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Old 01-13-2010, 12:46 PM
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Default Re: FSI Carbon Buildup and Q5

The ideal engine is the 2.0 TDI 6 speed. I would have been all over that one.
You should have considered taking possession late Aug or early Sep, you would have probably got a 2011 model, that's what happened to me last year over the 2009 instead got a 2010.

In 2010 they switched to servertronic which is a huge difference. MSRP went up 100 dollars as a result.
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Old 01-13-2010, 12:53 PM
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Default Re: FSI Carbon Buildup and Q5

Originally Posted by warcity
The ideal engine is the 2.0 TDI 6 speed. I would have been all over that one.
You should have considered taking possession late Aug or early Sep, you would have probably got a 2011 model, that's what happened to me last year over the 2009 instead got a 2010.

In 2010 they switched to servertronic which is a huge difference. MSRP went up 100 dollars as a result.
I'm tempted, but the only change I've heard for 2011 for Canada is a hybrid version...and some colour changes which I really don't care for.
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Old 01-13-2010, 12:55 PM
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Default Re: FSI Carbon Buildup and Q5

True - they will probably max and match the exterior/interior color options. The Hybrid I'd stay away from, it's Audi's first Hybrid engine in NA at least and pricing will probably be too high besides no one really understands the over-all cost (down the line cost) of maintaining a hybrid engine.
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Old 01-13-2010, 12:57 PM
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Default Re: FSI Carbon Buildup and Q5

Originally Posted by warcity
True - they will probably max and match the exterior/interior color options. The Hybrid I'd stay away from, it's Audi's first Hybrid engine in NA at least and pricing will probably be too high besides no one really understands the over-all cost (down the line cost) of maintaining a hybrid engine.
Exactly! I don't want the first one out of the gate lol. Another note, I got some rocker panel chrome too.
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Old 01-13-2010, 12:59 PM
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Default Re: FSI Carbon Buildup and Q5

I totally agree, I wouldn't touch a single German hybrid engine for at least 3-4 years.
What's a rocker panel chrome?
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Old 01-13-2010, 01:04 PM
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Default Re: FSI Carbon Buildup and Q5

Originally Posted by warcity
I totally agree, I wouldn't touch a single German hybrid engine for at least 3-4 years.
What's a rocker panel chrome?
Yeah I'd be scared paying that much for the first Hybrids.

Along the bottom of the doors like on the Cadillacs.
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Old 01-13-2010, 01:05 PM
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Default Re: FSI Carbon Buildup and Q5

Put all aside for me if you can, I'll grab it from you as soon as I drive to Niagara hopefully in the next week or so (it's time to stock up on some Ice Wine anyways). Thanks a bunch.
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Old 01-13-2010, 01:10 PM
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Default Re: FSI Carbon Buildup and Q5

Originally Posted by warcity
Put all aside for me if you can, I'll grab it from you as soon as I drive to Niagara hopefully in the next week or so (it's time to stock up on some Ice Wine anyways). Thanks a bunch.
will do.
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Old 01-17-2011, 08:08 PM
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Question Re: FSI Carbon Buildup and Q5

Any 09 owners experiencing problems?

This carbon buildup issue is scaring me since I planned on keeping a 2011 q5 3.2 for a minimum 7 years (200K mark). I'm tired of leasing vehicles and changing them every three or four years.

Based on forums and the net, I should stay away from Audi, since it would cost me $2K every year or even twice a year after the warranty runs out...

Any comments or advice?
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Old 02-14-2011, 10:38 AM
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Default Re: FSI Carbon Buildup and Q5

Originally Posted by CanadianQ5Prem
I'm reading a lot of reports from Audi owners regarding Carbon buildup in the intake manifold on FSI engines. Any Q5 owners had any issues yet? Also, does anyone know of a product that will eliminate this happening, or at least slowing it down or cleaning it?
Originally Posted by Adrena
Any 09 owners experiencing problems?

This carbon buildup issue is scaring me since I planned on keeping a 2011 q5 3.2 for a minimum 7 years (200K mark). I'm tired of leasing vehicles and changing them every three or four years.

Based on forums and the net, I should stay away from Audi, since it would cost me $2K every year or even twice a year after the warranty runs out...

Any comments or advice?
It is highly unlikely there will be carbon build-up in the intake manifold, as there is no fuel present there. Carbon build-up is typically due to liquid fuel pyrolyzing on hot surfaces. Only clean air passes through the intake manifold, so if anything is present there it is because the air filter has become dirty and needs to be replaced. In this case the deposit is not going to be carbon build-up.

The FSI engine is a direct-injection engine, meaning that the fuel is injected directly into the cylinder. This is unlike port fuel-injected engines, which injected fuel into the intake runner of the intake manifold. PFI engines could suffer from carbon build-up in the intake manifold. If the FSI engine suffers from carbon build-up, the most likely location would be at the tip of the fuel injector itself.
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