Dealer says that my 2007 R56 S needs carbon cleaning due to excessive buildup in intake valves, combustion chamber, fuel injectors. He wants to charge $600+

I found a local mechanic shop nearby that does the BG Fuel Air Induction Cleaning Service and will charge $160. Youtube video linked below. Will this help?

http://youtu.be/3Bad4te5Tao

Thank you.

Can't tell from the video.....seems like they would have to include the PVC system and they don't say. If it's just for the injectors, which would seem to be the typical approach, then it wouldn't do much. Not that I know much about this....just have a Clubman with 90k on it that probably needs to be cleaned.

Reading here it seems the ways are either Walnut Shells or manually cleaning on intake valves.

How to manually clean the valves. Has anyone done it?

Yup, I've done it. Don't bother trying to use BG or Seafoam to try and fix the issue if the dealer says you need it that badly. Walnut blasting is the best solution but you can do a pretty good job cleaning it out by hand if you have patience.

I would rather do it on my own. Is there a DIY out there? Car has 85K miles and I think the coking is quite severe. Any ideas how to do it manually?

Search around here, there's been a DIY posted with pictures. You may have to go to Google and add "site:northamericanmotoring.com" to your query to find it.

Basically, you take the intake manifold off, and you go in with solvent and your choice of implements of destruction (picks, scrapers, gun barrel cleaners, brushes of all kinds) and probably a shop-vac.

someone here did a diy on walnut blasting.
good luck on doing it manually.

I dont mean to be lazy but is this the DIY you were referring to

https://www.northamericanmotoring.co...right-way.html

This. Did you get a backache leaning over the engine? We charge $349 for the walnut service: I don't know where you are but the higher tech service facilities have the proper tools and charge less than dealerships.

Am in OH, where are you guys located?

Nice to know the smaller shops are picking up and able to do this kind of stuff.

Philly.


ROAD TRIP!!!!

Yup!!! I just had my '07 S done at Helix! They did an awesome job. Well worth the trip from Baltimore MD.

Ha, my calf muscles actually get more stiff than anything. Chad @ Detroit Tuned is practically down the street from me but I don't think he's offering the service yet.

I may be driving down there in the summer. Will try to make it to your shop if possible. Thank you.