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The Vaico V30-8406 is an OE-style coolant expansion tank for select 2014-2017 Mercedes-Benz S-Class and Maybach models, cross-referenced to OE 222 500 08 49. It is rated to 2 bar and measures 243 x 192 x 205 mm, matching the factory pressure spec for the cooling circuit. VAICO's Expert Kits+ line bundles the cap and sensor details into one box, so you get the parts a full reservoir replacement calls for rather than the tank alone. It suits owners of S550, S600, S63 AMG, S65 AMG and Maybach S550/S600 cars doing a cracked or leaking expansion tank repair, and it competes with OE Mercedes parts and other aftermarket tanks on fitment and completeness.
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Lowest price we've seen: $85.96 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
The Vaico V30-8406 is a replacement engine coolant reservoir, also called an expansion tank, for select Mercedes-Benz S-Class and Maybach models. It is an OE-style part that supports coolant expansion and recovery in the cooling system.
It is part of the VAICO Expert Kits+ line, which groups the components needed for a repair into one box. The reservoir is rated to 2 bar for the cooling system pressure specification.
Before installing, check the OE number, the reservoir dimensions and the sensor/cap configuration against the existing tank. Inspect the hoses, seals and mounting area during replacement.
