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
General information on control
Check of levels of liquids
Check of a condition of tires and pressure in them. Designation of tires and disks of wheels
Replacement of motive oil and oil filter
Replacement of the filtering element of the air filter
Checks of brake system
Replacement of an element of the filter of air of salon
Check of a condition of driving ridge belts
Check of a state and replacement of hoses of a motive compartment
Check of functioning of the cooling system and frost resistance of cooling liquid
Check of a condition of system of production of the fulfilled gases
Check of level of oil in a manual box of gear shifting
Check of a condition of components of a suspension bracket and steering
Check of a condition of protective covers of power shafts
Check of level of liquid of system of hydrostrengthening of a wheel
Visual check of a body and its bottom
Check of seat belts
Rotation and replacement of wheels
Check of a state, replacement of brushes and adjustment of a corner of screen wipers
Check of a condition of the battery, care of it and charging
Replacement of brake fluid
Check and replacement of spark plugs
Check of fuel system, replacement of the fuel filter. Operation of diesel model in the conditions of winter
Greasing of loops and locks of doors
Replacement of the battery of a key of remote control
+ Cooling systems, heating
+ 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
Check of functioning of the cooling system and frost resistance of cooling liquid1 Many serious violations in operation of the engine are connected with malfunctions of the cooling system. If the car is equipped with automatic transmission, its functioning and service life are also directly connected with operation of the cooling system.
2 Check of the cooling system has to be made at the cold engine therefore it is better to be engaged in it before a trip, the first for the present day, or not earlier than in three hours after switching off of the engine.
3 Slowly, being careful in case the engine yet not absolutely cooled down, uncover a radiator. Carefully wash out it from within and outside clear water. Also wash out a jellied mouth of a radiator. Existence of traces of corrosion in a jellied mouth means that the cooler should be replaced (address to the Section Replacement of Cooling Liquid). The cooler in a radiator has to be rather pure and transparent. If it has brownish color, drain system and fill in in it a new cooler.
4 Carefully check radiator hoses, and also heater hoses which have smaller diameter. Check cooling system hoses on all length, making replacement of any burst, blown up or worn-out hose. It is easier to find cracks if to squeeze a hose a hand. Pay special attention to the collars holding hoses on cooling system components. These collars can cut or pierce hoses that will lead to leakage of a cooler.
5 Make sure of reliability of fastening of all hose connections. Leakages of a cooler are usually shown in the form of white or rusty color of deposits in the field of sealing violation. If on your car collars of wire type are used, it is possible, there is a sense to replace them with collars of screw type.
6 by means of compressed air or a soft brush clear forward part of a radiator (and also the air conditioner condenser where it is available). Remove all insects, the leaves and other foreign subjects which got on radiator edges. Be very careful not to injure an edge and not to cut about them fingers.
7 If cooler level constantly falls, and you did not find any leaks, it is necessary to make check by pressure of a cover of a radiator and all cooling system.
Check of frost resistance of cooling liquid
Before a winter season it is necessary to check surely concentration of antifreeze in cooling liquid, especially if in system clear water was in use filled in.
For this purpose the frost resistance measuring instrument will be required. There is also optical tool for check of the HAZET level No. 4810.
8 Slightly warm up the engine so that the top hose of a radiator heated up. At measurement of concentration of antifreeze temperature of liquid has to be close to +20 °C.
9 Carefully turn off a stopper of a broad tank.
11 V our latitudes the concentration of antifreeze providing protection of system up to the temperature of -25 °C at especially frigid climate is sufficient to –35 °C.
Address to materials of Specifications at the beginning of the Head.
In need of ensuring frost resistance up to the temperature of -25 °C concentration of antifreeze in cooling liquid has to make 40%.
In need of ensuring frost resistance up to the temperature of -35 °C concentration of antifreeze has to make 50%.
12 Remove necessary quantity of a cooler and add antifreeze according to data of Specifications.
13 Close a stopper on a radiator and after a trial trip check concentration of antifreeze again, address to Specifications.