As Neil once posted, "things that are more easily done are more likely to be accomplished", or words to that effect. With that in mind, and thinking about the A4 cylinder head, it is prudent to plan the lay out and routing of hoses and accessories on the top of the engine with as few impediments to the re torqueing as possible. It is important enough to requiring good access to the nuts that on occasion we might redirect or add fittings to achieve it. If you don't re torque, head trouble is bound to happen.
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