Oil cooler, flush cleaning: Flushing

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Charge the vacuum extractor.

Fig 1: Connecting Vacuum Extractor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Connecting the vacuum extractor

Connect an oil pipe with an external diameter of 10 mm from the vacuum extractor. Connect the oil pipe to the short hose.

Flushing

Open the cock and suck the oil out of the oil cooler. Check that the filler container is not completely drained. (There should be a little oil left in the hose.) Flow: 2 liters take approximately 40 seconds.

If the level sinks slowly the flushing must be repeated. If the level still sinks slowly replace the oil cooler.