ar9130p2005lwp

Replace AIRSCARF control unit

Type ar · topic 91.30 · version 0100 · 2017-05-17

Applies to: Model 238.4 with code 403 (Airscarf system)

Where it sits

Function group 3 Body › 91 Seats, bunks, restraint systems › 91.30 Seat heater, seat ventilation — Series 238 (models 4**)

EinPAS 39 Heating/ventilation/cooling › 39.40 Head area climate control › 39.40.11 Control unit/relay — Series 238 (models 4**)

AR91.30-P-2005LWP

Replace AIRSCARF control unit

04.05.2017

Model

238.4

with code 403 (Airscarf system)

Replace AIRSCARF control unit

P91.30-2777-08

1

Trim

4

Bracket

2

Nut

5

Electrical connectors

3

Nut

N25/7

AIRSCARF control unit

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Remove/install

1

Perform initial startup of AIRSCARF control unit (N25/7)

When replacing AIRSCARF control unit (N25/7).

AD00.00-P-2000-06LWO

2

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

3

Remove seat cushion in rear

AR91.12-P-1020LW

4

Place the insulation mat under the seat cushion to one side

5

Remove seat backrest in rear left

AR91.12-P-1721LWR

6

Push the trim (1) to one side until the underlying nut (2) is accessible

7

Unscrew nuts (2, 3)

8

Remove the bracket (4) with the AIRSCARF control unit (N25/7) upwards (arrow A)

9

Press the catch hooks (arrows B) together, lift the AIRSCARF control unit (N25/7) slightly and extend downwards (arrow C)

10

Disconnect electrical connectors (5)

11

Install in the reverse order

Referenced documents