I brought my vehicle in to have the engine oil coolant lines replaced these are two heavy duty lines that take engine oil up to the radiator to cool it off and send it back to the engine. Practically any toothless hillbilly who made it through the 3rd grade could replace these lines in about an hour. On the radiator side the lines have threaded flare fittings that positively thread into metal fittings on the radiator, On the engine side they simply have a quick snap press in fitting with an O ring, Additionally to further secure the lines into the quick snap fittings There is an oil line hold down bracket to secure them tightly so that they can not slide out its redundancy to prevent the oil lines from moving or coming out... It's actually an excellent design and very well engineered however it cannot work properly if
A) the oil lines are not pressed in properly to the quick snap fittings, and B) if the oil line hold down bracket is not secured properly. Greulichs failed at both critical points of the operation.. additionally, they removed a bolt on a transmission support bracket and never put it back.
So the entire operation to replace the oil lions had 4 simple steps, Greulichs failed at 3 of the four steps.
DON'T EVER GO TO THIS SHITHOLE OF INCOMPETENT LOSERS......FUCK GREULICHS....