Withdrawal
1. Remove the exhaust gas recirculation cooler.
2. Remove a vacuum hose from a branch pipe of the vacuum pump for what loosen a collar.
![](https://www.bmwman.ru/img/ser3/3410.jpg)
3. Remove the bolts -2- and -3- and remove the vacuum pump.
Installation
1. Replace the O-ring on the vacuum pump.
2. Insert the vacuum pump with the driver into the groove of the camshaft.
3. Since the threads of the bolts -2- must be sealed, the threads of the new bolts are coated. After each loosening, the bolt must either be replaced or cleaned and coated with a common sealant, for example, "Drei Bond 1209" or "Loctite Ultra Black". Tighten bolts -2- and -3- to 20 Nm.
4. Install the recirculation system radiator, refer to Section Removal and installation of the inlet pipeline.