S83.70-4630-09
1 | Ground cable | 3 | Electrical connector | N33/4 | PTC heater booster control unit | ||
2 | Positive line | 4 | Screw |
| Remove/install | ||
1 | Disconnect battery ground line | ||
2 | Remove left cover below dashboard |
| |
3.1 | Detach center console | MODEL 447 with CODE FF1 (Center console with stowage compartment) except CODE FG0 (Luxury center console with roller blind) MODEL 447 with CODE FF2 (Center console with 1-DIN slot) except CODE FG0 (Luxury center console with roller blind) MODEL 447 with CODE FG0 (Luxury center console with roller blind) except CODE FF1 (Center console with stowage compartment) except CODE FF2 (Center console with 1-DIN slot) | |
MODEL 447 with CODE FF1 (Center console with stowage compartment) MODEL 447 with CODE FF2 (Center console with 1-DIN slot) | |||
MODEL 447 with CODE FG0 (Luxury center console with roller blind) | |||
Center console does not need to be completely removed. | |||
3.2 | Release cover from vertical strut | MODEL 447.6/7 except CODE FF1 (Center console with stowage compartment) except CODE FF2 (Center console with 1-DIN slot) except CODE FG0 (Luxury center console with roller blind) | |
The cover on the vertical strut does not need to be removed completely. | |||
4 | Unscrew nut of ground line (1) and remove ground line (1) from PTC heater booster control unit (N33/4) | Nut, wiring harness to PTC heater booster | |
5 | Unscrew nut of positive line (2) and remove positive line (2) from PTC heater booster control unit (N33/4) | Nut, wiring harness to PTC heater booster | |
6 | Disconnect electrical connector (3) | ||
7 | Remove PTC heater booster control unit (N33/4) | | |
For this purpose, remove bolts (4). | |||
Installation: Ensure that PTC heater booster control unit (N33/4) is seated correctly in installation frame of device. | |||
8 | Install in the reverse order | ||
| Check | ||
9 | Carry out function test on PTC heater booster control unit (N33/4) |