Inspect cooling system for leaks

AR20.00-P-1010TX

Inspect cooling system for leaks

4.10.07



Removing

 Danger!

Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by swallowing coolant.

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

Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

1

Open engine hood and raise to vertical position

AR88.40-P-1000TX

2

Open cap of coolant expansion reservoir (1)

 Turn cap slowly and release excess pressure, then unscrew cap.

3

Check coolant level and antifreeze content coolant

 If the antifreeze protection for the coolant is too small, either antifreeze must be added or the coolant must be replaced: 

Drain coolant, fill.

AR20.00-P-1142TY



Coolant specifications

Sheet 310.1

BB00.40-P-0310-01A



Anticorrosion/antifreeze agents (Sheet 325.0)

Sheet 325.0

BB00.40-P-0325-00A

4

Screw on test cap (01) at coolant expansion reservoir (1).



*210589009100

5

Connect pressure pump (02) at test cap (01)



*124589242100

6

Apply test pressure to cooling system

 To prevent damage to cooling system, do not exceed stated test pressure.

Test pressure for pressure-testing cooling system

*BE20.30-P-1005-01A



Checking

7

Inspect condition and installation at hose clamps; retighten or replace if necessary



Install

8

Check coolant hoses and heater hoses and their connecting points for condition and coolant loss

 Replace coolant hoses and heater hoses if required.

9

Unscrew test cap (01) at coolant expansion reservoir (1).

 Slowly unscrew test cap (01) and reduce the excess pressure.

10

Remove pressure pump (02)

11

Screw on the cap of the coolant expansion reservoir (1)

12

Close engine hood

AR88.40-P-1000TX

Number

Designation

2-stage
cap

BE20.30-P-1005-01A

Test pressure for pressure-testing cooling system

bar gage

1.4