What is a walnut blast for bmw

Does BMW recommend walnut blasting?

BMW recommends intake valve cleaning in the form of walnut blasting roughly every 30,000 to 50,000 miles.19 thg 6, 2019

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What does a walnut blast do?

The process of walnut blasting, which entails cleaning the intake manifold and valves of a car’s engine with a high pressure air blast of finely crushed walnut shells (a biodegradable abrasive), is meant to help clear out carbon buildup on older gasoline direct injection (GDI) engines, thus helping the car run better.8 thg 8, 2020

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How much does it cost to walnut blast engine?

Walnut blasting costs vary depending on the time spent cleaning, but it’s roughly between $40-65 per cylinder (typically $160-260 for a 4 cylinder engine, unless its an extreme case!) PLUS the time to remove and reinstall your intake manifold.

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Can walnut blasting damage engine?

Walnut shells are a good medium, abrasive enough to lift carbon from a surface, but soft enough to not impact or damage the surface of the engines components such as the valves or the aluminium cylinder head.8 thg 4, 2021

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How often should you walnut blast BMW?

It sounds crazy, but your BMW dealer actually recommends it every 80,000 miles. Walnut blasting is a common way to clear carbon buildup from your car’s intake valves, and it’s exactly what it sounds like. We take crushed up walnut shells and blow them into your car’s engine with an air compressor.

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How do I know if I need a walnut blast?

Walnut blasting is necessary if you have a vehicle with a gasoline direct injection engine such as an Audi, BMW, Cadillac, Mercedes-Benz, Mini Cooper, Volkswagen or a few more cars from European automakers.

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Does walnut blasting really work?

Walnut blasting is recognized as one of the safest and most efficient methods of removing carbon buildup from your car’s intake manifold and intake valves. Nearly all direct-injected engines will need this process completed semi-regularly throughout the life of the car.

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Does walnut blasting make a difference?

Therefore, walnut blasting does provide improvement, but it appears to be on the low end of the rev range. It’s maintenance, not a performance mod. You shouldn’t be thinking in terms of HP gains, but the fact that you’re keeping your engine in good running order.

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