Technical data

9 Repair BBW 46 / DBW 46
906
9.2.6.1 Removal
1. Remove heater (see 8.7.1.1).
2. Break electrical connections (see 9.2.1.1).
3. Open clamping ring (3, Fig. 903).
4. Remove circulation pump (2) and gasket (1).
5. Perform procedures on components after
disassembly (refer to 9.1.1).
9.2.6.2 Installation
1. Remove deposits form water inlet of heat exchanger.
2. Apply Copaslip (Ident. No. 105898) to new gasket (1)
and locate on connector pipe.
3. Position circulation pump (2) for assembly and secure
with clamping ring (3).
4. Make electrical connections (see 9.2.1.2).
5. Install heater (see 8.7.1.2).
1Gasket
2 Circulation pump
3 Clamping ring
4 Heat exchanger
NOTE
Circulation pump may be
mounted externally in vehicle.
4
1
2
3
Fig. 903 Replacement of Circulation Pump