Design | |
Thermosyphon with a vane water pump. Thermostatic adjustment. With separate expansion tank. Electrically driven fan, switched on and off by the control unit | |
Coolant: mixture of soft water and antifreeze (1:1), with this composition, frost resistance is provided up to -37°С | |
Antifreeze | MB No. Q1 03 0002 or Glysantin Protect Plus/G482 |
The volume of the system when replacing, l | |
| 8.5 |
| 7.5 |
| 10.5 |
| 11.9 |
| 12.4 |
Coolant Composition | |
The proportion of antifreeze in the coolant to ensure frost resistance | |
up to -37°C | 50% |
up to -45°C | 55% |
System pressure | About 1.2 atm. (the exact value is indicated on the cap of the expansion tank). The lid must withstand pressure for two minutes. |
Thermostat | |
Valve stroke | not less than 8 mm |
Gasoline engines | |
| 87±2°С |
| 102° |
Diesel engines | |
| 92°±2°С |
| 102° |
Fan thermal switch | |
1st stage on/off | 92-97/84-91°C |
2nd stage on/off | 99-105/91-98°С |
Expansion tank plug | |
Overpressure valve opens, atm. | |
Stage 1 | 1.4 ± 0.1 |
Stage 2 | 2.0 ± 0.1 |
Vacuum valve opens | 0.1 |
The opening pressure of the valve is indicated on the cap in atm. x 100. If, for example, there is «140/200», we are talking about a two-stage cover and the valve opening pressure is 1.4 and 2.0 atm. | |
Air conditioner refrigerant | |
Type | R134a (do not use R12) |
Volume, gr. | 750 |
Refrigerator oil | |
Type | A001 989 0803 |
Volume, cm3 | 120 |
Tightening force of threaded connections, Nm | |
Fastener tightening torques are also given in the text of the Chapter and in some illustrations *. | |
*The tightening torques in bold type are subject to exact observance; Efforts not in bold type are indicative only. | |
Coolant plug on the cylinder block | |
| 40 |
| 12 |
| 30 |
Water pump mounting bolts | |
4-cylinder petrol engines | |
| 10 |
| 25 |
6-cylinder petrol engines | |
| 14 |
| 35 (with a new distribution housing 10Nm and 25Nm respectively) |
Belt damper | |
| 25 |
| 35 |
Diesel engines | |
| 14 |
| 20 |
Pulley to coolant pump | 35 |