Review on FIRSTINFO Pneumatic Operation Changer Extractor by Steve Brethorst

Good: System works fine, just used pump, don't know how the compressor actually works. I can't say anything about the compressor function. Below is my experience with the product for the FIRST TIME. The Bad: I bought this to change the oil on my 2014 MB E350. The hoses supplied are too short for the Mercedes E350, it couldn't reach the bottom of the oil pan so I was only able to pump out about 5 liters. Engine oil dipstick, the tube was detached from the tip and stuck in the engine dipstick hole. It was very difficult for me, but I was lucky that I was able to pull it off. Recommendation: I think if the pipe were longer or a better connection between the pipes would prevent the problem of a pipe stuck in the engine oil dipstick. I will be sending it back and will have to look for a better product.