Remove/Install Armrest Heater Control Unit - AR54.21-P-0045LWP
Model 238.4
With Code 906 (Front armrest heater)
Shown With Code 872 (Seat heater in rear passenger compartment)
Fig 1: Armrest Heater Control Unit Components Location - Model 238.4 With Code 906 (Shown With Code 872)
Shown With Code 872 (Seat heater in rear passenger compartment)
| Topical note | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Remove/install | |||
| 1 | Perform commissioning of armrest heater control unit (N5) | When replacing the armrest heater control unit (N5). | |
| 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 right seat backrest in rear | AR91.12-P-1721LWR | |
| 6 | Push the trim (1) to one side until the underlying nut (2) is accessible | ||
| 7 | Unscrew nuts (2) | ||
| 8 | Guide out bracket (3) with armrest heater control unit (N5) upwards | ||
| 9 | Press catch hooks (arrows A) together, lift armrest heater control unit (N5) slightly and remove downwards | ||
| 10 | Disconnect electrical connections (4) | ||
| 11 | Install in the reverse order |