Outdoor Air Temperature Sensor Installation Details
Outdoor Air Temperature Sensor Installation Details
Arrows - Screws securing the instrument panel to the A-pillars
1. The details of the installation of the outside air temperature sensor are shown in the illustrations to which all references in the text refer.
2. Drain the cooling system (see Chapter Checking the cooling system and frost resistance of the coolant, replacing the liquid).
3. Unscrew the mounting bolts and remove the expansion tank of the cooling system (1) from the rear bulkhead of the engine compartment.
4. Disconnect the cooling system hoses (2) from the heater heat exchanger.
5. In a car service workshop, discharge the air conditioning system.
6. Remove the expansion valve cover (4).
7. Loosen the nut (3) securing the expansion valve (4).
8. Disconnect the refrigeration lines from the expansion valve.
9. Remove the windshield wiper drive assembly.
10. Loosen the nuts (5) of the instrument panel on the engine compartment bulkhead.
11. Remove the A-pillar trim panels.
12. Loosen the plastic nuts for the trim panel mounting panel located on the left under the instrument panel.
13. Remove the footwell trim panel.
14. Remove the rubber plugs and unscrew the screws securing the instrument panel to the A-pillars (arrows).
15. Remove the center console assembly (see Chapter Body).
[Original can be found on the website: mercedesman]
16. Remove the bolt (6) under the instrument panel.
17. Pull the instrument panel back and rotate it so that its rear side is accessible.
18. Disconnect the electrical wiring connector (B10/5x1) of the outside air temperature sensor.
19. Disconnect the cable from the sensor to the air conditioner evaporator/heater heat exchanger housing.
20. Remove the outside air temperature sensor (B10/5) from the air hose.
21. Installation is carried out in the reverse order - the air conditioning system should be filled in a car service workshop.
22. Finally, check the cooling system for signs of developing leaks.