Jaguar / Land Rover - Active engine mount testing process

In this video I explain how to test the active engine mount of Jaguar and Land Rover cars - I am using a mount from an XE, but the testing process should be the same for all cars which have the similar round black bottom part of the mount, with a vacuum connection.

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A vacuum leak through the torn engine mounts is a more serious problem than it may seem. In a 4.4-liter diesel engine, this, combined with a few other factors, led to engine failure. Those who own or service these cars are familiar with the additional oil drain pipe from the turbo. What they often don't know is why the oil doesn't drain as intended and calculated by the engineers who designed this car. There should be a slight vacuum in the engine crankcase under normal conditions, allowing the oil from the turbo to drain into the crankcase even without the additional pipe. However, when there's no vacuum, the oil stands and begins to seep and enter the intercooler pipes from the turbocharger, from where it eventually enters the intake. The vacuum in the engine disappears when there's a loss of vacuum due to the way the vacuum pump is designed-it pumps air out of the vacuum system and into the engine. Usually, this is a small volume, and air in a sealed system quickly runs out. But in a leaky system, air is constantly pumped into the engine.

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In my case, jaguar sdv6, hole is fully closed. Good or bad?