Engine cooling,  M110

Draining and filling coolant – Anti-freeze table

 

 

20—010 Draining and filling coolant — Anti-freeze table

 

Mixing ratio of anti-freeze1) and water2)3)

 

Anti-freeze/water in liters for models Protection down to 107                      114                      116                      123                       126

 

-20 °C -30 °C -40 °C
4.25/7.
75
3
.75/7.
25
3
.75/7.
25
3.
5/6.5
3.
75/6
.75
5.5/6.5

 

5
.0/6.0

 

5
.0/6.0

 

4.
5/5.5
4.
75/5
.75
6.25/5.
75
5
.75/5.
25
5
.75/5.
25
5.
25/4.75
5.
50/5
.0

 

Total amount                u                        „                         „                         1Q
in liters
‘) see service product specifications on page 325.
2)  see service product specifications on page 310.
3)  add 1 % or 10 cc of anti-corrosion oil/liter to water for model 114, even when using an anti-freeze (see service product specifications on page 311).

 

Tightening torques

 

Nm
Radiator drain plug, models
107, 114, 116
6-10
Radiator drain plug, model
123
1.5-21)

 

M This torque can be established by means of a washer or coin.

 

Conventional tool

 

Antifreeze tester
Prestone-VU-Check (Union-Carbide)
e.g. made by Philipp Gather, D-4020 Mettmann 2
m110 - 0760-1.jpg

 

R-4 789

 

20.2-010/1 F3

 

 

 

Draining
m110 - 0761-1.jpg
1 Open radiator cap or expansion tank in steps (only below 90 °C) (194 °F).
2 Unscrew radiator drain plug.
Models 107, 114, 116

 

Model 123
m110 - 0761-2.jpg

 

m110 - 0761-3.jpg

 

Model 126
12O-TO8?

 

3 Remove drain plug on right side of engine block behind engine carrier.
m110 - 0761-4.jpg

 

20.2-010/2 F3

 

 

 

Filling
4   Set both heater levers or temperature dials on model 126 to “/warm” position.
5   Add coolant slowly until level is at mark.
m110 - 0762-1.jpg

 

Model 107

 

6   Run engine warm by intermittent acceleration and keep radiator cap closed as from 70 °C (158 °F) until thermostat opens.
7   Check coolant level and correct to specified level.
m110 - 0762-2.jpg
Models 114, 116

 

Model 123, 126
a cold b warm
m110 - 0762-3.jpg

 

20.2-010/3 F3