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The ET on the M54 is a weak point for sure. It is usually the first component to give up. Depending on your mileage, I would consider a coolant system refresh with a new ET, WP, thermostat and associated hoses. If the budget allows I would also consider the fan clutch and fan on the engine.
Last edited by Overboost; 02-02-2020 at 06:12 PM.
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