BMW 3 Series E46

since 1998 release

Repair and operation of the car

BMW 3 Series E46
+ BMW 3 cars (E46)
+ Current leaving and service
+ Engine
- Cooling systems, heating
   - Engine cooling system
      Replacement of cooling liquid
      Check of a thermoswitch
      Check of the cooling system under pressure
      Connection and separation of the quick disconnect coupling
      Removal and installation of the thermostat
      Removal and installation of a fan / casing of the fan
      Removal and installation of the fan with the viscous coupling
      Removal and installation of a radiator
      Removal and installation of the pump of cooling liquid
   + Heater and conditioner of air of salon
+ Power supply systems, injection and release
+ Engine electric equipment
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment

Connection and separation of the quick disconnect coupling

Hoses and accessions of cooling liquid connect quick disconnect couplings. Connection/separation of the quick disconnect coupling is described on the example of the coupling of the top hoses of a radiator.


1 Merge cooling liquid in capacity, address the Section Replacement of Cooling Liquid.

2 Take out upward the screw-driver wire clamps-1-and-2-.

3 Separate the coupling.


4 Check sealing rings in connections of quick disconnect couplings. In the presence of damages replace.

Sealing rings should not be greased with any lubricant.

5 Press before installation wire clamps on the coupling.
6 Connect the coupling. At the same time clamps have to be recorded distinctly.
7 Fill system with cooling liquid and remove air from system, address the Section Replacement of Cooling Liquid.