Remove/install throttle valve actuator

AR07.61-P-1401MRC

Remove/install throttle valve actuator

16.11.2018

Model

212 with engine 274.9

with code 924 (Bivalent natural gas drive)

1

Charge air cooler

2

Clip

3

Purge line

4

Engine wiring harness

5

Connection piece

6

Low temperature coolant reservoir

7

Coolant vent line

8

Bolts

9

Electrical connector

M16/6

Throttle valve actuator

 

Remove/install

1

Switch off ignition

2

Remove engine cover

3

Unclip engine wiring harness (4) on charge air cooler (1)

4

Detach ME-SFI [ME] engine control unit from bracket and place to one side with attached electrical lines

5

Detach electrical lines on charge air cooler (1)

 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

6

Relieve coolant pressure in the low-temperature circuit

 To do this open the cover on low-temperature circuit coolant reservoir (6).

7

Detach coolant vent line (7) on low-temperature circuit coolant reservoir (6)

 Seal openings with  stop plugs.

 Record plug

*129589009100

8

Detach charge air cooler (1) from bracket for charge air cooler (1)

AR09.41-P-6819MRC

9

Loosen clamp (2)

10

Unclip purge line (3) on charge air cooler (1)

11

Push charge air cooler (1) to the front and subsequently fold upwards

12

Remove screws/bolts (8)

 Installation: Tighten screws (8) in a crosswise pattern.

 Bolt, throttle valve actuator to charge air distributor

*BA30.20-P-1002-01C

13

Remove connection piece (5) with the screw/bolts (8)

 Installation: Replace seal.

14

Unfasten electrical connection (9) and remove throttle valve actuator (M16/6)

 Installation: Replace seal.

15

Install in the reverse order

16

Check coolant level in low-temperature circuit and correct if necessary

Notes on coolant level

AH20.00-P-1142-01CW

17

Check low-temperature circuit for leaktightness

AR20.00-P-1010MR

18

Read out fault memory using the diagnostic system and clear if necessary



AD00.00-P-2000-04A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

19

Carry out an engine test run, checking the engine for proper operation and leaktightness

 Electronic accelerator actuator

Number

Designation

Engine 274

BA30.20-P-1002-01C

Bolt, throttle valve actuator to charge air distributor

Nm

6