Retrofit engine residual heat utilization system

AN83.75-P-0001PC

Retrofit engine residual heat utilization system

14.2.12



Remove

Danger!

Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices

No fire, sparks, open flames or smoking.

Wear acid-resistant gloves and clothing and safety glasses with side guards.

Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.

Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.

AS54.10-Z-0001-01A

Danger!

Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. 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 bottles.

Wear protective gloves, protective clothing and eye protection.

AS20.00-Z-0001-01A

Danger!

Injury Hazard! Windshield wiper mechanism can pinch, crush or, in extreme cases even sever extremities.

Always remove ignition key when working on windshield wiper mechanism.

AS82.30-Z-0001-01A



Notes on battery

All models.

AH54.10-P-0001-01A



Notes on coolant

All engines

AH20.00-N-2080-01A

1

Drain coolant



Engine 111

AR20.00-P-1142PR

Engine 112

AR20.00-P-1142PV

Engine 611, 612

AR20.00-P-1142HB

2

Connect quiescent current retention unit



AR54.10-P-1030-07I



*WH58.30-Z-1012-09A

3

Disconnect ground cable of battery



AR54.10-P-0003P

4.1

Remove air cleaner



Engine 611, 612

AR09.10-P-1050C

4.2

Remove air cleaner housing



Engine 111.951

AR09.10-P-1150PR

Engine 111.955

AR09.10-P-1150PK

4.3

Remove engine trim panel with integral air cleaner

Engine 112

 The air cleaner is integrated in the engine trim panel. Remove engine trim panel by pulling it vertically up and off the cylinder head covers.

5

Remove coolant line (14a)

 Part eliminated. Do not remove coolant line (15a).

 Hose clamp pliers (length 210 mm; adjustment range 80 mm).

*WH58.30-Z-1019-02A

6

Remove AAC pushbutton control module (N22)

 Part eliminated. The AAC pushbutton control module (N22) is not screwed to the cover at the center console, only pushed in.



AR83.25-P-1125P



Install

7

Install AAC pushbutton control module (N22)

 New part. Install AAC pushbutton control module (N22) with REST button.



AR83.25-P-1125P

8

Retrofit coolant lines (14, 15)

 New part.

AN20.20-P-0001-01P

 Hose clamp pliers (length 210 mm; adjustment range 80 mm).

*WH58.30-Z-1019-02A

9

Install heating water circulation pump (M13)

 New part. Coupling on heating water circulation pump (M13) is tied in the area of the coolant expansion reservoir.



AR83.25-P-1170PP

10.1

Install air cleaner



Engine 611, 612

AR09.10-P-1050C

10.2

Install air cleaner housing



Engine 111.951

AR09.10-P-1150PR

Engine 111.955

AR09.10-P-1150PK

10.3

Install engine trim panel with integrated air cleaner

Engine 112

11

Disconnect quiescent current retention device



AR54.10-P-1030-07I



*WH58.30-Z-1012-09A

12

Reconnect ground lead to battery



AR54.10-P-0003P

13

Pour in coolant



Engine 111

AR20.00-P-1142PR

Engine 112

AR20.00-P-1142SV

Engine 611, 612

AR20.00-P-1142HB

14

Perform version coding "residual engine heat utilization system MRA"

 STAR diagnosis tool

15

Carry out operational check

16

If changes made to equipment scope code or designation of relevant optional equipment enter subsequently on vehicle datacard and FDOK

Code (670a) residual engine heat utilization system MRA.

Number

Designation

WH58.30-Z-1019-02A

Hose clamp pliers (length 210 mm, clamping range 80 mm)

WH58.30-Z-1012-09A

Quiescent current retention unit

Part no.

Designation

Quantity

KG 83

AAC pushbutton control module with REST button

1

KG 83

Heating water circulation pump

1

KG 83

Hose

2