Remove/install coolant expansion reservoir of auxiliary circuit

AR08.50-D-0007TE

Remove/install coolant expansion reservoir of auxiliary circuit

26.11.2019

Engine

780.703 in model 910

Modification notes

17.09.2019

Filling capacity for cooling system

BF08.50-N-1001-01TE

1

Expansion reservoir

5

Elastomer bearing

2

Cap

6

Guide pin

3

Vent line

7

Catch hook

4

Coolant hose

8

Bracket

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from 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

Topical note

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Notes on coolant level

AH20.00-P-1142-01CW

 

Remove/install

1

Remove cap (2) of expansion reservoir (1).

 Turn cap (2) counterclockwise only up to the safety catch and relieve overpressure. Then unscrew cap (2).

2

Clamp off coolant hose (4).

 Clamp

*000589543700

3

Extract coolant from expansion reservoir (1).

 Filling capacity for cooling system

*BF08.50-N-1001-01TE

 Hand pump

*210589007100

4

Remove bleed line (3) from expansion reservoir (1).

AR08.50-P-0018-01EQ

 Seal opening of bleed line (3) with suitable stop plugs.

 Record plug

*129589009100

5

Release expansion reservoir (1) from bracket (8).

 To do this, unclip catch hooks (7).

 Installation: Ensure that catch hooks (7) engage audibly.

6

Lift expansion reservoir (1) until coolant hose (4) is accessible.

 Installation: Ensure guide pin (6) is inserted correctly into elastomer bearing (5).

7

Remove coolant hose (4) from expansion reservoir (1).

AR08.50-P-0018-01EQ

 Collect escaping coolant.

8

Remove expansion reservoir (1).



Check

9

Check elastomer bearing (5) for damage.

If elastomer bearing (5) is damaged



Replace elastomer bearing (5).

10

Install in the reverse order.



Check

11

Check auxiliary circuit in area of expansion reservoir (1) for leaks.

AR08.50-D-0014TE

 Cooling system

Number

Designation

Engine 780.703 in model 910

BF08.50-N-1001-01TE

Filling capacity for cooling system

Main circuit

l

 4,8

Auxiliary circuit with 3 high-voltage batteries

l

 9,6

Auxiliary circuit with 4 high-voltage batteries

l

 10,4

Main circuit and auxiliary circuit with 3 high-voltage batteries in repair case

l

 14,4

Main circuit and auxiliary circuit with 4 high-voltage batteries in repair case

l

 15,2

Mixing ratio for antifreeze/water (to -37 °C)

%

50/50

Coolant specifications

BB00.40-P-0310-01A

Specification

BB00.40-P-0325-05A