Turbo charger support bracket on the W166 and X166 Mercedes with the OM642 engine. This bracket contains both the oil feed and return passages along with coolant passeges.
Mercedes recomends replacing this when the turbo is replaced to prevent contamination and oil starvation.
This is the latest version of the support block that must be used with the GTB2260VK turbo upgrade.
Not for ML250 BlueTEC or GLE250d with the 2.1L diesel.