Remove/install engine intake air duct downstream of air filter

AR09.10-P-8130MFC

Remove/install engine intake air duct downstream of air filter

29.11.2019

Engine

260 in model 118, 177, 247

Modification notes

28.11.2019

Document completely revised.

Shown on engine without code M016 (performance-enhanced engine)

1

Engine air intake duct

6

Ball stud

2

Vent line

7

Screw

3

Screw

8

Bolts

4

Vent line

9

Coolant line

5

Retaining clips

10

Electrical connector

Shown on engine with code M016 (Uprated engine)

11

Shaped hose

 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

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

 

Remove/install

1

Remove the bleed line (2) of the full-load crankcase ventilation system from the engine air intake duct (1) and place it to one side with the lines still attached.

Engine 260 in model 118, 177, 247
with code M016 (Uprated engine)

AR01.20-P-0020MFC

Engine 260 in model 118, 177, 247
except code M016 (Uprated engine)

AR01.20-P-0025MFC

 Installation: Only install upper engine cover after the leak test.

2

Remove the molded hose (11) and seal the openings with protective covers.

Engine 260
with code M016 (Uprated engine)

 Set of protective caps

*001589029100

 Hose clamp pliers

*454589003700

3

Unscrew the screw (3) and ball pin (6).

 Screw/bolt, charge air distributor to cylinder head

*BA09.20-P-1001-01U

4

Remove the bleed line (4) from the engine air intake duct (1) and seal the openings with suitable stop plugs and protective covers.

 Record plug

*129589009100

 Set of protective caps

*001589009100

5

Release and disconnect the electrical connector (10) on the pressure sensor downstream of the air filter (B28/11).

6

Unscrew the screw (7) and place the inerting line to one side.

Engine 260 in model 118, 177, 247
with code 2U8 (Alternative refrigerant)

 Bolt/nut for inerting system gas line to engine/body

*BA86.10-P-1002-03K

7

Unclip the electric line from the retaining clips (5) and release and disconnect the electrical connector on the boost pressure control flap actuator (M16/7).

8

Unscrew the screws (8), remove the coolant line  (9), place to one side and seal the openings with suitable stop plugs.

 Installation: Replace screws (8).

 Collect escaping coolant with rags.

 Installation: Replace seal.

 Bolt, feed line/return line to turbocharger/crankcase

*BA09.40-P-1002-02G

 Record plug

*129589009100

9

Remove engine air intake duct (1).

AR09.41-P-1311-01AL

10

Turn the pressure sensor downstream of the air filter (B28/11) on the engine air intake duct (1) counterclockwise and remove.

If engine air intake duct (1) is replaced.

 Installation: Make sure that the sealing ring is seated correctly.

11

Check the sealing ring of the pressure sensor downstream of the air filter (B28/11) for damage.

If engine air intake duct (1) is replaced.

If there are problems,



Replace the pressure sensor downstream of the air filter (B28/11).

12

Install in the reverse order.

13

Read out and delete fault memory.



AD00.00-P-2000-06MFA

14

Bleed coolant circuit.

AR20.00-P-1142-04A

 Cooler vacuum filling device

*285589002100

 Electric vacuum pump

*285589022100

 Test cap

*210589009100

 NTKL Adaption

*285589012100

 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

15

Perform engine test run. While doing so, check engine for proper operation and leak tightness.

16

Install upper engine cover.



AP01.10-P-2405-01C

 Intake manifold

Number

Designation

Engine 260

BA09.20-P-1001-01U

Screw/bolt, charge air distributor to cylinder head

Nm

14

 Turbocharger

Number

Designation

Engine 260

BA09.40-P-1002-02G

Bolt, feed line/return line to turbocharger/crankcase

Stage 1

Nm

8

Stage 2

°

60

 Inerting system

Number

Designation

Model 118

Model 177

BA86.10-P-1002-03K

Bolt/nut for inerting system gas line to engine/body

M6

Nm

8

8

 Inerting system

Number

Designation

Model 247

BA86.10-P-1002-03K

Bolt/nut for inerting system gas line to engine/body

M6

Nm

8