BMW Carbon Cleaning

BMW Carbon Cleaning

Carbon build-up on BMW N54 engines - 2007 and newer - is inevitable. It’s just a matter of time before your vehicle starts losing the power it once had. If you notice your BMW is starting to act sluggish, along with a loss in gas mileage you are most definitely in need of carbon cleaning. Direct injection engines require a little extra care compared to the traditional port injection engines.

What is Carbon Build-Up?

Carbon build-up in your engine is a result of fumes from combustion gases getting deposited on your BMW’s ports and valves (creating a black soot) – The carbon build up restricts air flow to the vehicle’s engine causing many symptoms:


  • Engine Misfire
  • Rough Idle at Cold Start
  • Engine Vibrates or Shakes
  • Check Engine Light


If you experience, any of these drivability issues give us a call. The carbon cleaning process generally takes less than a day and we can get you back on the road feeling like you did when you bought your BMW! Get back that horsepower you’ve been missing! This chart shows you an example of a before and after to see how the carbon cleaning improved horsepower.

BMW Walnut Blasting

BMW Engine Carbon Cleaning - Before

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What's Included in the removal?

First, we remove the intake manifold and then clean the ports and intake valves via walnut blasting. Walnut blasting is the best option on the market today. The process consists of shooting walnut shell pieces onto the port and intake valves with a compressed air blaster. Carbon removal can be very labor intensive depending on the size of the engine. Give us a call at 630-281-4100 for pricing for your specific model and we can get you squared away and back on the road.

BMW Walnut Blasting At PKW Motorwerks

Can You  Prevent It?

There is really no cure to prevent carbon from forming on your intake valves for BMW models that are 2007 or newer. It’s best to treat carbon cleaning as part of your routine mileage-based service. It should be done every 30,000 miles to keep your BMW in the best shape and prevent any further engine issues.

BMW Carbon Cleaning   at PKW Motorwerks

At PKW Motorwerks, we have experience cleaning intakes on all BMW direct injection engines. The end results lead to increased power, gas mileage improvement and prolonged engine longevity. All done within a day! Our Plainfield shop services Naperville, Aurora, Joliet, and the surrounding southwestern suburbs of Chicago.

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