ar4245p0841rt

Remove/install yaw rate and lateral acceleration sensor

Type ar · topic 42.45 · version 0300 · 2008-12-15

Applies to: MODEL 251

Where it sits

Function group 2 Chassis › 42 Brakes - hydraulic and mechanical systems › 42.45 Electronic Stability Program (ESP), stability control (SR) — Series 251

EinPAS 26 Active safety system › 26.20 Braking/traction control › 26.20.12 Sensor/switch/wiring harness — Series 251

AR42.45-P-0841RT

Remove/install yaw rate and lateral acceleration sensor

5.12.08

MODEL 251

Remove/install yaw rate and lateral acceleration sensor

P42.45-2517-09

Shown on vehicle model 251.1 with code (489) All-round level control system

1 Impact absorber

2 Nuts

3 Clips

4 Nuts

5 Intermediate bottom

6 Nuts

7 Bracket

8 Electrical connector

9 Nuts

B24/15 Micromechanical turn rate sensor AY pickup

N51 AIRMATIC with ADS control unit

Modification notes

25.11.08

Perform initialization of DTR control unit after replacing turn rate sensor, added

Step 10

Remove/install

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

1

Switch off ignition and remove transmitter key from EIS control unit

On vehicles with code (889) Keyless Go: Press keyless go start/stop button repeatedly until ignition is switched off. Remove transmitter key from vehicle and store it in a location beyond its transmission range (at least 2 m).

2

Remove front floor covering

Right side of vehicle

AR68.20-P-2070RT

3

Remove impact absorber (1)

4

Unscrew nuts (2, 4) and remove intermediate bottom (5)

Installation: Do not mix up nuts (2) and nuts (4).

Installation: Pay attention to correct seat of clips (3)

5

Unscrew nuts (6) and place bracket (7) with AIRMATIC control unit (N51) to one side

Do not disconnect AIRMATIC control unit (N51) from electrical system.

6

Disconnect electrical connector (8)

7

Unscrew nuts (9) and remove turn rate sensor (B24/15)

Observe installation position. The turn rate sensor (B24/15) is sensitive to shocks. The arrow on the label on the turn rate sensor (B24/15) must face forwards.

8

Install in the reverse order

9

Carry out road test as per STAR DIAGNOSIS

After replacing the turn rate sensor (B24/15)

10

Perform initialization of DTR control unit with STAR DIAGNOSIS

After replacing the turn rate sensor (B24/15) on vehicles with code (219) Distronic (DTR)

Referenced documents