Remove/install hot film mass air flow sensor

AR07.07-P-1455OIB

Remove/install hot film mass air flow sensor

28.09.2018

Engine

656 in model 213, 238, 257

2

Electrical connector

3

Clip

4

Clamps

B2/5

Hot film mass air flow sensor

 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

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

 

Remove/install

1

Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).

2

Remove upper engine cover.

AR01.10-P-2405OIB

3

Disconnect electrical connection (2).

4

Release clamp (3).

 Installation: Replace clamp (3).

 Air intake line to exhaust gas turbocharger

*BA09.10-P-1002-01P

5

Open clips (4).

6

Remove hot film mass air flow sensor (B2/5).

 Installation:
Check the seal is seated correctly; position it correctly if necessary.
Otherwise leaks can occur in the charge air system.

 Installation: Replace seal between hot film mass air flow  (B2/5) and air filter housing.

7

Install in the reverse order.

8

Connect diagnostic device, read out fault memory, and delete if necessary.

After replacing the hot film mass air flow sensor  (B2/5).



Engine 656 in model 213

AD00.00-P-2000-04B



Engine 656 in model 238

AD00.00-P-2000-06LWO



Engine 656 in model 257

AD00.00-P-2000-06FR

 Air filter

Number

Designation

Engine 656

BA09.10-P-1002-01P

Air intake line to exhaust gas turbocharger

Clip

Nm

4

Screw

M6

Nm

8