Removing and installing coolant thermostat housing - RA20001201120X(20-1120)
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
Preceding work:
Viscous fan (20) removed (20-3120) .
Model 140: radiator removed (20-4200) .
Operation no. of the operation texts and work units or standard texts and flat rates:
20-2710
| Model 129: coolant | drain from radiator, pour in Draining, pouring in coolant - anti-freeze protection table . |
| Shield caps (11), (14) and (15) | remove, install. |
| Ignition cable 4 | disconnect from both high voltage distributors (12), plug in. |
| High voltage distributor (12) with holders (13) and (17), shield cap | remove, install (15-3010) . |
| Installation note Cables of TDC sensors (L1/1) and (L1/2) |
clip into holders (13) and (17). |
| Model 129: ignition cable 4 | clip into holders (13) and (17). |
| Oil lines of power steering pump | clip into left holder (17). |
| Coolant hoses (1) and (2) | detach from thermostat housing cover (3), fit on. |
| Electrical connector at thermostat housing (4) | unplug, plug in. |
| Screws (6) and (7) in thermostat housing cover (3) | unscrew, screw on. |
| M8 X 80 screws (5) in thermostat housing (4) | unscrew, screw on (21 Nm). |
| Thermostat housing (4) together with housing cover (3) | remove, install. |
| O-rings (8), (9) and (10) | replace. |
| Coolant | pour in Draining, pouring in coolant - anti-freeze protection table . |
| Cooling system | check for leaks Testing cooling system for leaks . |