BMW 3 of the E46 series
since 1998 release
Repair and operation of the car
BMW 3 of the E46 series
+ BMW 3 Cars (E46)
+ Current leaving and service
- 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
+ Electric equipment of the engine
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
+ Schemes of electric equipment
Replacement of cooling liquidIt will be necessary for work for you:
- A viewing hole or the hydraulic garage elevator with supports.
- Cap key or head.
- Capacity for cooling liquid.
- Antifreeze. Thus only the antifreeze brands allowed by BMW firm are allowed for use. Address to Specifications. Attention: Mixing of antifreeze of various brands is not allowed.
- Pure, with the low content of lime water of drinking quality.
- The drain stopper on the block of cylinders requires aluminum a sealing ring And 14 x 18.
Within maintenance it is necessary to make replacement of cooling liquid each 4 years. Attention: Cooling liquid in a certain degree is poisonous, and it cannot be poured out simply. Local authorities have to provide information on an arrangement of points of reception of similar materials.
The volume of the cooling system is specified in Specifications.
Removal of cooling liquid
1 Carefully open a stopper of a broad tank.
2 Lift and install the car on supports. Remove the lower cover of a motive compartment, address to the Section Removal and installation of the lower cover of a motive compartment.
5 Completely merge cooling liquid and utilize it according to the existing order.
6 Screw a drain stopper with a new sealing ring in the block of cylinders and tighten the moment 25 N • m.
7 Screw a drain stopper on a radiator with new sealing slightly tighten its moment 2.5 N • m.
Filling of system with cooling liquid
8 Establish a heater in salon on the maximum power. Install the switch of the fan on a low step and include ignition. Thus, heater cranes open.
10 Petrol engines: Fill a broad tank to the brim with fresh cooling liquid so that liquid left without bubbles via the union for removal of air. Close the union.
Diesel engine 320d
15 At the diesel engine it is necessary to observe surely the following sequence of filling of system with cooling liquid:
c) Fill a broad tank with liquid to the brim.
d) Close the remained unions on a heater hose, a radiator of system of recirculation and, in the presence of the conditioner, on a heater heat exchanger hose.
16 Close a broad tank a stopper. It is not necessary to warm up the engine at an open stopper as it can lead to damages.
17 Start the engine and hold turns higher than 2500 rpm tolchkoobrazny pressing a gas pedal. As a result of removal of the air containing in cooling liquid level liquid in a tank slightly will go down.
18 Switch off ignition.
19 Check liquid level on the cold engine and if necessary add, address to the Section Check of Levels of Liquids.
20 Visually check tightness of the cooling system, in particular, of hose accessions, and also drain traffic jams and unions of removal of air.