ar0707p1454gz

Removing/installing hot film mass air flow sensor together with the air intake pipe

Type ar · topic 07.07 · version 0100 · 2006-07-26

Applies to: ENGINE 113.964 in MODEL 164.175

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.07 Air volume guage, air mass guage — Series 164 (models 175)

EinPAS 15 Engine › 15.30 Air intake/charging › 15.30.33 Intake manifold/charge air pipe — Series 164 (models 175)

EinPAS 15 Engine › 15.45 Engine management › 15.45.12 Sensor/switch/wiring harness — Series 164 (models 175)

Also applies to engines/gearboxes: 113 964

AR07.07-P-1454GZ

Removing/installing hot film mass air flow sensor together with the air intake pipe

23.11.04

ENGINE 113.964 in MODEL 164.175

Removing/installing hot film mass air flow sensor together with the air intake  
	pipe

P07.07-2055-06

1 Air cleaner housing

2 Electrical connector

3 Vent line

4 Vent line

5 Top catch

6 Bottom catch

7 Air intake connection

8 Lock

9 Sealing ring

B2/5 Hot film MAF sensor

Removing/installing

Danger!

Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.

When moving components, ensure that no body parts or limbs are within the operating range of moving parts.

AS00.00-Z-0011-01A

1

Open engine hood and raise to vertical position

AR88.40-P-1000GZ

2

Remove air cleaner housing (1).

AR09.10-P-1150GZ

3

Remove the electrical connector (2) at the hot film mass air flow sensor (B2/5)

4

Detach vent line (3) from hot film mass air flow sensor (B2/5)

5

Release vent line (4) from bracket at hot film mass air flow sensor (B2/5).

6

Open top catch (5) at top of hot film mass air flow sensor (B2/5)

7

Use a hook to pull up bottom catch (6) at top of air intake connection (7)

To do this, push the hot film mass air flow sensor (B2/5) as far back as possible, until the lower catch (6) cannot latch again.

8

Use a screwdriver to press down lock (8) on the air intake connection (7)

To do this, push the hot film mass air flow sensor (B2/5) as far back as possible, until the catch (8) cannot latch again.

9

Remove hot film mass air flow sensor (B2/5) from throttle valve actuator

Installation: Check sealing ring (9), replace if required. Check the sealing ring between air inlet connection (7) and hot film mass air flow sensor , replace if required. Check upper lock (5), lower lock (6) and lock (8); replace locks or air intake connections (7) as required.

10

Unclip pneumatic line on AIR management control system from brackets on the air intake connection (7)

11

Install in reverse order

12.1

Read out fault memory and erase if required

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

Connect up STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

STAR DIAGNOSIS diagnosis system

*WH58.30-Z-1048-13A

Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns when working in engine during starting procedure

Secure vehicle to prevent it from moving.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.

AS00.00-Z-0005-01A

13

Conduct engine test run and check the intake system for leaks

If a leak is found, determine the cause and rectify, otherwise engine malfunctions may result.

Commercially available tools

Number

Designation

WH58.30-Z-1048-13A

STAR DIAGNOSIS diagnosis system, Compact Passenger Car

6511 1801 00

Referenced documents