E46 series BMW 3

since 1998 of release

Repair and car operation

E46 series BMW 3
+ BMW 3 Cars (E46)
+ Current leaving and service
+ Engine
- Systems of cooling, heating
   + System of cooling of the engine
   + 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
+ electric equipment Schemes


Systems of cooling, heating


General parameters

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

Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print

Design of system of cooling

Thermosiphon with the lopastny water pump. Thermostatic adjustment. With a separate broad tank. The fan with the vyazkostny coupling. The additional electric fan joins and switched off by a thermoswitch

Cooling liquid


mix of soft water (60 %) and antifrizny concentrate (40 %)

Antifrizny 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 amount of antifreeze added in system of cooling for ensuring of demanded frost resistance (thus as much a cooler to merge)
It is shown below, how many antifreeze it is necessary to add to provide desirable frost resistance.
Example: Measurement on the engine 316i shows protection to temperature – 10°С. In this case it is necessary to merge from system of 2.0 l of 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 – 35°С.

The values given in the table are valid at temperature of cooling liquid near +20°С.
Ridge maple 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)
Compressor of the conditioner of air
ProducerNippondenso 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 given also in the text of Head and on some иллюстрациях*.

*vydelenny in the text a bold print the moments of an inhaling are subject to exact observance; the efforts not allocated with a bold print are given only roughly
The water pump on the engine
Bolt М6 10 N • m
Bolt М1020 N • m
Pulley 15 N • m