General parameters
Location of sensors in the right front part of the engine compartment
Individual characteristics are also given in the text of the Chapter and, if their implementation is mandatory, are highlighted in bold
| Cooling system design | |
Thermosiphon with vane water pump. Thermostatic control. With separate expansion tank. Fan with viscous coupling. Additional electric fan is switched on and off by a thermal switch | |
| Coolant | |
Compound | a mixture of soft water (60%) and antifreeze concentrate (40%) |
Antifreeze concentrate | |
| Aral Antifreeze Extra, DEA Kuhlerfrostschutz, GlycoShell, Glysantin Protect Plus, Mobil Frostschutz 600 | |
| System volume | |
| 316i, 318i | 6.0 |
| 320i, 323i, 328i | 8.4 |
| 320d | 7.0 |
| The amount of antifreeze added to the cooling system to ensure the required frost resistance (at the same time drain the same amount of coolant) | |
| Below is an indication of how much antifreeze should be added to provide the desired freeze resistance. | |
| Example:The measurement on the 316i engine shows protection down to -10°C. In this case, 2.0 l of coolant must be drained from the system and 2.0 l of pure concentrate must be added instead. This will provide engine protection down to -35°C. | |
The values given in the table are valid at a coolant temperature of approximately +20°C. | |
| Ribbed V-belts | |
| 318i | 6 RK x 1733 (5 RK x 950) |
| 320d | 5 RK x 2030 (5 RK x 836) |
| 320i, 323i, 328i | 6 RK x 1538 (5 RK x 863) |
| Air conditioner compressor | |
| Manufacturer | Nippondenso Seiko-Seiki |
| Oil | 4.3 – 4.8 oz (129-144 ml) |
| Coolant | 34.4 – 36.0 oz (1032-1080 ml) |
| Tightening forces of threaded connections | |
| Tightening torques for fasteners are also given in the text of the Chapter and in some illustrations*. *Tightening torques highlighted in bold in the text must be strictly observed; efforts not in bold are only approximate | |
| Water pump on the engine | |
| Bolt M6 | 10 Nm |
| Bolt M10 | 20 Nm |
| Pulley | 15 Nm |