will there be a new RS4?
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If the problem causes a permanent code, the dealer will clean/replace the intake manifold and clean the intake valves. Obviously the problem will come back again.
Most owners have done the cleaning themselves or have contracted a shop to do the work. Lots of manual labor, and quite a bit out of pocket if a shop does it. Some owners have installed catch cans but that will not completely solve the problem.
With your IS-f, you probably don't have to worry since Lexus injects fuel into the manifold to clean the valves.
Most owners have done the cleaning themselves or have contracted a shop to do the work. Lots of manual labor, and quite a bit out of pocket if a shop does it. Some owners have installed catch cans but that will not completely solve the problem.
With your IS-f, you probably don't have to worry since Lexus injects fuel into the manifold to clean the valves.
Thank you for sharing this information. You sound very knowledgable on the subject. I am in the market for an RS4. What would you recommend I look out for? From a performance degradation perspective I can't compare to a new one. for reference...
Being that the one I am looking at is a lease return, they should be able to pull all the service records. If the dealer performed a cleaning would that be a red flag? Meaning would prior incidents mean the car is predisposed to have future problems?
Would you also be so kind as to provide some links to good audi forums and/or specific material on the carbon buildup issue? Posting here or PM is fine.
Really appreciate your help!
Keep one thing in mind guys, Quattro GMBh only builds one RS model at a time. There was the RS2, the B5 RS4 in 2001 (?), the RS6 in 2003/4, then the RS4 again in 2007, then RS6 again in 2009, and now the RS5 is coming. After they sell the RS5 for a year they'll bring out the next RS model car.
Basically, there's not always an RS model car every year, and whether it'll be based on an A4, A8, A3, A5......no one ever really knows until Audi announces it.
Basically, there's not always an RS model car every year, and whether it'll be based on an A4, A8, A3, A5......no one ever really knows until Audi announces it.
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That sucks! I'm on my original rear tires, brake pads and rotors in my IS-F and i'm at 25k miles! Paying thousands of dollars out of pocket to remove carbon deposits in my intake manifold isn't really considered a "quirk".........wouldn't you agree?
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Anyways, great for you. I too have had zero issues with my RS4 and service records back that up. The car has almost 50K miles on it and drives like it is brand new. Pulls like a freight train and zero signs of the carbon build up issue. One can speculate all day long as to the build up and I have my own. I personally rather pull the intake off and do a quick cleaning than replace tires every 3-5k miles or drive an IS-F. All these cars possess strong points and weakness's. But to bash the Audi is just ludicrous. How about Winter's in Boston. Would you rather own the C63 or RWD sibling because some have experienced the CBU issue... I'll take the safety of the Quattro and let the dealer handle the CEL when it comes on. Just my opinion...
I'm not bashing Audi, I've owned three of them! Yes my IS-F just went through a gas pedal recall so you're correct, no cars are impervious to trouble. I think you're confused as to how much is involved in cleaning the build up as it has nothing to do with taking your intake off LOL.....but by all means, knock yourself out and let us know how it goes!
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I'm not bashing Audi, I've owned three of them! Yes my IS-F just went through a gas pedal recall so you're correct, no cars are impervious to trouble. I think you're confused as to how much is involved in cleaning the build up as it has nothing to do with taking your intake off LOL.....but by all means, knock yourself out and let us know how it goes!
And yes I do much of the maintenance...Anyways, I was typing fast and forgot to add manifold in there. Anybody that knows anything about the topic knows its IM. But hey, I give you an A for effort in the cynical department. Your just too cool for me. Since I build and race cars I know exactly what is involved in removing the build up. BESIDES, I rather have a 20whp decrease in performance than having my gas pedal stick to the floor
You win, the IS-F is a much better car than the RS4. I'll go trade it in...LOLBack on topic, it would be nice to hear some news on an upcoming RS4 but I dont think we will hear much. I like the RS5 but need 4 doors for our munchkin
Its tempting though....
Last edited by Most-Wanted; May 9, 2010 at 11:09 PM.
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Keep in mind that Audi is addressing these build up issues and have been working on remedies through the ecu and catch cans as well as other avenues... So future cars should be less prone to the situation...
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Guys, the build up is caused by doing mainly short drives that do not fully warm up the engine. If you do mainly this type of driving ANY Direct Injection engine will have the issue since there is no fuel to clean the system. If your commute is more than 10 miles you will most likely not have any issue with build up. More importantly this is not exclusive to Audi.
Also there has been talk of an RS4 recently. Whether or not it will come to the US is an entirely different question since Audi does not see us as good enough to bring the S4 Avant over either.
Also there has been talk of an RS4 recently. Whether or not it will come to the US is an entirely different question since Audi does not see us as good enough to bring the S4 Avant over either.
So quick to make fun, make jabs, and thow out an LOL.... People like you make me laugh. Gotta love the internet. You have no idea who you are talking with but want to insuate I know nothing about cars because I mistyped an obvious. Feel better??? I can throw up some vids of my 804whp evo if you like..... U can find it all over youtube under the same screenname and WORLD RECORD. I am the owner and driver And yes I do much of the maintenance...
Anyways, I was typing fast and forgot to add manifold in there. Anybody that knows anything about the topic knows its IM. But hey, I give you an A for effort in the cynical department. Your just too cool for me. Since I build and race cars I know exactly what is involved in removing the build up. BESIDES, I rather have a 20whp decrease in performance than having my gas pedal stick to the floor You win, the IS-F is a much better car than the RS4. I'll go trade it in...LOL
Back on topic, it would be nice to hear some news on an upcoming RS4 but I dont think we will hear much. I like the RS5 but need 4 doors for our munchkin Its tempting though....
And yes I do much of the maintenance...Anyways, I was typing fast and forgot to add manifold in there. Anybody that knows anything about the topic knows its IM. But hey, I give you an A for effort in the cynical department. Your just too cool for me. Since I build and race cars I know exactly what is involved in removing the build up. BESIDES, I rather have a 20whp decrease in performance than having my gas pedal stick to the floor
You win, the IS-F is a much better car than the RS4. I'll go trade it in...LOLBack on topic, it would be nice to hear some news on an upcoming RS4 but I dont think we will hear much. I like the RS5 but need 4 doors for our munchkin
Its tempting though....Well that changes everything! I mean if driving an 800 hp Evo doesn't classify you as an internet car God, then I don't know what will!
I feel a bromance coming on!
And when all else fails..........we are left with the proverbial stuck gas pedal joke! Well played Joe Mauer
There will be an RS5 released with an updated/tweaked version of the RS4/R8 V8 power plant. A rumored 450hp. No mention of a new RS4. Also, many, and I do mean many RS4s all over the world are suffering from carbon buildup do to an insufficient PCV system and exhaust gas recirculation. SO, unless you drove an RS4 with less than 1K miles on the clock, you probably have not felt the real power.
As far as most Audi enthusiasts know, the carbon issue is affecting all Audi direct injection engines. It's been a huge topic on the Audi sites for some time now.
As far as most Audi enthusiasts know, the carbon issue is affecting all Audi direct injection engines. It's been a huge topic on the Audi sites for some time now.
If the problem causes a permanent code, the dealer will clean/replace the intake manifold and clean the intake valves. Obviously the problem will come back again.
Most owners have done the cleaning themselves or have contracted a shop to do the work. Lots of manual labor, and quite a bit out of pocket if a shop does it. Some owners have installed catch cans but that will not completely solve the problem.
With your IS-f, you probably don't have to worry since Lexus injects fuel into the manifold to clean the valves.
Most owners have done the cleaning themselves or have contracted a shop to do the work. Lots of manual labor, and quite a bit out of pocket if a shop does it. Some owners have installed catch cans but that will not completely solve the problem.
With your IS-f, you probably don't have to worry since Lexus injects fuel into the manifold to clean the valves.
Don't shoot the messenger........but then again, I don't drive an 800 hp Evo!
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Joined: Nov 2009
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From: Victoria
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Keep one thing in mind guys, Quattro GMBh only builds one RS model at a time. There was the RS2, the B5 RS4 in 2001 (?), the RS6 in 2003/4, then the RS4 again in 2007, then RS6 again in 2009, and now the RS5 is coming. After they sell the RS5 for a year they'll bring out the next RS model car.
Basically, there's not always an RS model car every year, and whether it'll be based on an A4, A8, A3, A5......no one ever really knows until Audi announces it.
Basically, there's not always an RS model car every year, and whether it'll be based on an A4, A8, A3, A5......no one ever really knows until Audi announces it.
also the supercharged 6 has a lot more potential, mtm sees around 430hp with a piggyback that is in no way an ideal way to make power out of the motor and once you start talking new superchargers(as the pulley is rumored to be about as small as usable on the s4) we could see close to 500hp without a lot of work or drama.....
lots of choices for them so who knows