BMW 3 series E46

Since 1998 of release

Repair and car operation

The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
+ The engine
- Systems of cooling, heating
   + System of cooling of the engine
   + Heater and the conditioner of air of salon
+ Power supply systems, injection and release
+ Engine electric equipment
+ Manual transmission and transmission a line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes

Systems of cooling, heating


The general parametres

Arrangement of gauges in the right forward part of an impellent compartment

Separate characteristics are resulted also in the text of the Head and in case of compulsion of their performance are allocated by a bold type

Design of system of cooling

Thermosiphon with лопастным the water pump. Thermostatic adjustment. With a separate broad tank. The fan with вязкостной муфтой. The additional electric fan joins and switched off by a thermoswitch

Cooling liquid


Mix of soft water (60 %) and антифризного a concentrate (40 %)

Antifriznyj concentrate

Aral Antifreeze Extra, DEA Kьhlerfrostschutz, GlycoShell, Glysantin Protect Plus, Mobil Frostschutz 600
System volume
316i, 318i6.0
320i, 323i, 328i8.4
320d 7.0
The quantity of antifreeze added in system of cooling for maintenance of demanded frost resistance (thus as much a cooler to merge)
It is more low shown, how many antifreeze it is necessary to add to provide desirable frost resistance.
Example: Measurement on the engine 316i shows protection to temperature-10S. In this case it is necessary to merge of 2.0 l from system of a cooling liquid and instead of it to fill in 2.0 l of a pure concentrate. It will provide protection of the engine to temperature-35S.

The values resulted in the table are valid at temperature of a cooling liquid nearby +20С.
Ridge клиновые belts.

318i 6 РК x 1733 (5 РК x 950)
320d 5 РК x 2030 (5 РК x 836)
320i, 323i, 328i6 РК x 1538 (5 РК x 863)
The compressor of the conditioner of air
The manufacturerNippondenso Seiko-Seiki
Oil 4.3 – 4.8 ounces (129-144 ml)
Coolant34.4 – 36.0 ounces (1032-1080 ml)
Efforts of a tightening of carving connections
The moments of an inhaling of fixture are resulted also in the text of the Head and on some иллюстрациях*.

*Выделенные in the text a bold type the inhaling moments are subject to exact observance; the efforts not allocated with a bold type are resulted only roughly
The water pump on the engine
Bolt М6 10 Н•м
Bolt М1020 Н•м
Pulley 15 Н•м