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09-14-2011, 09:04 AM | #1 |
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Carbon Build up in Cylinder Valves
Went to my dealer for brake fluid maintenance and they are starting to promote a new service they have for cleaning the carbon out of the cylinders valves. They say they recommend doing it every 15k due to the ethanol in the fuel causing more carbon build up in the cylinder. Does anyone know any more information on this? I"m wondering if I should've gone ahead and done it or is there something else I can do to prevent carbon build up. I've heard a driving style of revs over 3-4k rpm, but I do mostly city driving and with cops ticket happy these days, been sticking to the speed limit. Only time I get to open her up is at the track and thats only one day out of the month.
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09-15-2011, 06:20 PM | #3 |
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I smell horsesh!t.
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09-16-2011, 10:25 PM | #4 |
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Yes, exactly, what are they proposing. Head removal, head disassembly? It is probably some BS fuel additive.
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09-19-2011, 01:22 PM | #5 |
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They have some kind of new machine that goes in there and cleans out the valves, for $190. I'd never heard of this in our cars before. The DI makes sense since he said most of the ones getting trouble with this are mostly regular 3 and 5 series.
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09-19-2011, 07:51 PM | #6 |
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I just use a can of sea foam every 3 months on a full tank
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09-20-2011, 10:10 AM | #8 |
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Sound just as bad as a Jiffy Lube sales pitch!
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09-22-2011, 09:24 AM | #10 |
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With direct injection you don't have any flushing going on in the cylinders and valves, non DI cars do not have that issue
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11-11-2011, 07:23 PM | #12 | |
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You won't have that issue with you M3 because it uses port fuel injection which cleans anyways. Just put some Chevron(same as BMW's) fuel injection cleaner additive in your tank every 4th fill up. I myself have one of these which is a fuel injector cleaner tool. You basically inject a mixture of fuel and a cleaner directly into your fuel rail. This proves well with older cars with semi clogged or clogged injectors. Cleans out injectors well with the right cleaner and cleans the intake ports.
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02-14-2012, 01:26 PM | #13 |
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Wow - just got back from dropping off my car for service and got the same line "BMW recommends this because of "additives" to fuel. They asked for $590 - and I stupidly signed the paperwork. I just called them to tell them NOT to do it - I will be pissed if they give me the line "sorry, we're already in process". WTF!
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02-14-2012, 01:32 PM | #14 |
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Great, just got the call - "sorry, we already have the car in the shop and this service is already done".
Seriously? It's been 1.5 hours since I dropped it off. I gave it to my service consultant - asking him why the F*(CK he suggested this for my M3 when its a PORT injected car with 19K miles. I also mentioned this is typically done on 335's/535's and Mini's or cars with direct injection. He didn't say much, saying this is suggested for ALL BMWs, which I called BS. He's checking with his tech guy now and will call me back. WTF. Any recommendations? I'm pretty pissed, both at him upselling, the fact I can't trust my service consultant, being an idiot and believing them, and the freakin' price $590 - that seems WAY higher than any other quote I've seen. |
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02-14-2012, 05:30 PM | #15 | |
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02-14-2012, 05:36 PM | #16 | |
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But on another note - I'm pretty pissed that my SA would do that. I will never trust anything he suggests anymore without coming here first. Fack. |
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02-14-2012, 06:38 PM | #17 |
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Glad you solved this and they admit they fudged up. That pisses me when they try to rip you off like this. Always come here if I have any doubts on what the stealer offers or plans to do with my car.
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02-15-2012, 11:21 AM | #18 | |
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02-19-2012, 06:21 PM | #19 | |
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02-22-2012, 06:16 AM | #21 | ||
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4 tanks comes to about a 1000 miles. Doesn't that seem too frequent? I always assumed it was something done with every oil change(?). I used to religiously use this stuff on my old car after every oil change (3-4000 miles), but when I got to about 80,000 miles I ended up stopping because I never really felt the difference... Wasn't sure if it was really working... I wish the car would discharge sludge or Something to validate the use of the product. |
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02-29-2012, 11:05 AM | #22 |
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Damn I love this forum. Took mine in today for 25K-ish service and got the fuel injector, alignment, balance upsell. Each service was 199$. Declined everything but was wondering this morning whether I should have at least gone with the fuel injector mumbo jumbo. Glad I didn't. 199$ buys some nice vino. First time taking it to this dealership and it will be the last. I truly think that the majority of employees have no idea how the cars work. Sad. I'm just hoping my baby comes back in one piece. I wonder if they even know what type of oil goes in the M3?
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