BMW 5 series E39

1. Open a stopper of a broad tank.

At разогретом the engine before opening of a cover of a radiator put on it a thick rag to exclude a burn owing to emission of a hot liquid and steam. There is a danger of accident. The cover can be opened only at temperature of a cooling liquid more low +90С.

2. Turn away a ventilating bolt (1) and bolts (2). Address to an accompanying illustration.

3. Remove the top part, take out a broad tank upward. Address to an accompanying illustration.

1. Replace sealing rings (arrow).
2. Insert a broad tank, fix the top part and a ventilating bolt.
3. Fill system with a liquid and remove from system air, address to Section Replacement of a liquid of system of cooling. Check of frost resistance of a cooler. Visual check of system of cooling.
4. Start and warm up the engine and check up tightness of connections.