Carbon Cleaning

windym

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Just like to say great day at Beaulieu Vanity BMW on Sunday, nice meeting forum members and putting faces to names. The journey down was horrible, due to a nasty accident on the M25 but such is life, I figured the journey home would be easy, ying/yang thing, just over 5 hours to do 120 miles with various accidents and traffic jams, so wrong there.

Anyway just after Donna and I arrived we spotted @Lee taking his car to get it Carbon Cleaned, so interested we had a wander over to the stand. Lee,s dad was also getting his done and at this point with the price, it looked a good option. The Coupe defiantly seemed improved by this, so Gaz and I decided we would get ours done.

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Simple process and today had a scout around the net to find the science behind the cleaning, as you would expect a lot of mixed results and conflicting opinions. There are a few interesting videos of people using a product called SeaFoam and just plain water to do the same job.

View: https://youtu.be/u6UeJXkzDW8

View: https://youtu.be/nOoIuBu5xO4

With my car the journey home was a shocker so my engine would be running at temperature for a prolonged period of time. This in turn should have helped the process, once free of traffic I did feel the car was more responsive through the rev range. The Z seemed to have improved torque as well, very noticeable between 50-80 in fifth gear.

My exhaust is also noticeably louder possibly due to the cat being de-carboned but again the long journey should have helped that anyway. Tick over was pretty much the same but it is a 4 pot so not the smoothest engine BMW have ever made. As for economy no idea yet so @GazHyde and @Lee what do you reckon, placebo or genuine effect?

Andy
 
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GazHyde

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Thanks for starting the thread off Andy! It's a little soon for a full review, but so far there has been a general improvement.

The idle on my car wasn't always consistent, which seems to be resolved now. I've done about 100 miles since the treatment and the car seems much smoother and perkier. I nearly reached the office today (35 miles) and realised I hadn't turned Sport mode on. Didn't notice that's for sure, so will see what it's like with it turned on going home.

Fuel wise too early to say, but I have a suspicion that it's going to improve. Will know by the end of the current tank of fuel.
 

GazHyde

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Fuel consumption definitely improved :D. Never seen the gauge this high before!

This was with a best case OBC reset after fill up and 20 miles on the A34 at around 70mph. Usually the best I could get in the same circumstances was around 32.

@Lee says his consumption has improved as well.
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Lee

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Z4 Coupe 3.0si
First impressions are good.

After the cleaning process the first things I noticed were throttle response and the engine note. The grunt in the lower rev's felt more there and the engine itself idle a little more freely. Now knowing other products on the market do the same things I might give one of these a go and compare in 10,000 miles time.

My MPG has improved marginally but my coupe spends a lot of its time in my garage so no daily long runs to compare too.

Conclusion: For £70 I'm not complaining but now I know other products do the same from a can for half the price I would give these a try first.



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Lee
 

Dino D

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I believe this cleaning is essential in the newer cars with direct injection and some Audis like the RS4 have to have a clean with blasted walnut pieces (could have been peanuts, some sort of nutshells anyway!)

What are the other products that do this for half the price?
 
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