ar2000s1010a

Checking cooling system for leaks

Type ar · topic 20.00 · version 0110 · 2006-07-26

Applies to: ENGINE 111, 104.900, 601, 611.980 in MODEL 638

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.00 General — Series 601 · Series 611 (models 980) · Series 638

EinPAS 15 Engine › 15.25 Engine cooling system › 15.25.5 Coolant circuit, complete — Series 601 · Series 611 (models 980) · Series 638

Also applies to engines/gearboxes: 104 900, 111 ***

AR20.00-S-1010A

Checking cooling system for leaks

9.2.95

ENGINE 111, 104.900, 601, 611.980 in MODEL 638

Checking cooling system for leaks

S20.00-3000-06

1 Expansion reservoir

2 Cap

3 Tester

Checking

Danger!

Risk of injury to skin and eyes from scalding from hot coolant which splashes out. Risk of poisoning from swallowing coolant.

Do not open the cooling system unless the coolant temperature is below 90 °C. Open cap slowly and allow the pressure to release. Do not pour coolant into containers for drinks.

Wear protective gloves, protective clothes, and eye protection.

AS20.00-Z-0001-01A

1

Adjust heater switch to maximum heat output

2

Unscrew cap (2) on expansion reservoir (1)

Replace cap (2) if corroded.

3

Check coolant level and correct if necessary.

AP20.00-D-2010A

4

Screw tester (3) onto expansion reservoir (1)

Tester

*124589152100

5

Pressurize cooling system to approx. 1.4 bar

6

All hoses of the cooling and heating system, radiator, coolant thermostat housing, coolant pump, oil / water heat exchanger and cylinder head gasket

If necessary retighten or replace hose clips after testing.

Wrench hexagon

*WH58.30-Z-1002-06A

Wrench hexagon

*WH58.30-Z-1001-06A

7

Detach tester (3)

8

Screw cap (2) onto expansion reservoir (1)

Checking cooling system for leaks

124 589 15 21 00

Tester

Commercially available tools

Number

Designation

WH58.30-Z-1001-06A

6 mm socket hexagon on flexible shaft for hose clamps with worm drive

WH58.30-Z-1002-06A

7 mm socket hexagon on flexible shaft for hose clamps with worm drive

Referenced documents