9. Coolant system2749.5.4 Replacing filler neck1) Take out the copper tube inside the filler neckwith striking a circumference with a driverand so on. When the filler neck is removed,remove it with being careful not to damagethe fresh water cooler, and scrap it.2) Clean both the new filler neck and theinsertion part of fresh water cooler. ApplyT7471 type activator or equivalent on boththe surfaces and let it evaporate.3) Apply Loctite 603 (improved 601) glue orequivalent on filler neck outside contour andpress the filler neck into the fresh watercooler with the special tool.008188-00ETool 1Filler neckPress the filler neckFiller neckTool 1Loctite 601Fresh water cooler 001587-00E