Audi and VW Direct Injection Carbon Cleaning
Ever since the internal combustion engine superseded the horse and buggy, carbon build up has been a problem. The advent of direct injection – which your late model Audi or Volkswagen is equipped with – has made the problem even more common. This is because direct injection does exactly what it sounds like – it sprays fuel directly into the combustion chamber instead of into the cylinder head intake ports. Because fuel is no longer sprayed into the intake ports, the intake valves don’t get washed off by gasoline, or the detergents and cleaners that accompany it. This allows carbon to accumulate on the intake valves and wreak havoc on your engine.
Engine performance problems can be caused by carbon deposits assembling around the intake valves. The deposits can create turbulence and restrict airflow into the cylinders, which in turn, may cause a variety of ailments including:
- Loss of power
- Poor gas mileage
- Hard starting
The denser the buildup, the more sever the symptoms will become. Typically, your repair bill will begin to inflate as well.
Of course, you can’t easily inspect an engine for intake valve deposits because the valves are buried inside the engine. Removing the intake manifold and looking inside the cylinder head is the only way to take a peek at the valves. This procedure, as you probably guessed, is neither cheap nor easy.
So, what can you do to prevent carbon build up? The answer is simple: clean those intake valves. No, we don’t mean scrubbing them down with Lysol and elbow grease. There are special cleaning products designed specifically for ridding your valves of carbon. You just need to know how to use them – or at least know somebody who does (such as JP Autoworks!).
At JP Autoworks we use BG Gasoline Direct Injector cleaner. BG Gasoline Direct Injection Cleaner dissolves hardened fuel deposits that accumulate on injector tips and intake valves. BG restores lost engine performance and fuel economy. Our pricing to clean a typical 4 cylinder starts at $150
If you’re engine is too gummed up by carbon to be saved by a BG cleaning, it may be time to take more extreme measures. The next step in the engine rehabilitation process is to remove the intake manifold and clean the valves directly. This is a big job, but not as big as the next possible step – removing the cylinder head and cleaning each of the valves by hand. This job is as labor intensive as it sounds, and very costly. In fact, it’s so time-consuming that in some cases it may be more cost effective to just completely replace the cylinder head.
The moral of this story is: bring your Audi or Volkswagen to us for periodic intake valve cleaning. A rule of thumb is every 15,000 miles. Also, general upkeep such as fluid and filter changes can slow carbon build up as well. Basically, love your Audi and VW they will love you back!
Call us at (801) 755-3342 or email us for more information on Audi or VW valve cleaning.