Draining and adding coolant (S55 engine)
Special tools required:
- 00 2 030
The repair work on the cooling system should only be carried out on an engine that has cooled down!
Never reuse used coolant!
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled.
In the case of other removal work involving the draining of part quantities of coolant, replace these quantities which have been drained with new coolant.
Installation note:
Use only recommended coolant.
Observe the appropriate water/antifreeze mixture ratio.
Protective measures/rules of conduct:
- Wear safety goggles
- Wear protective gloves
- Observe national/country-specific regulations
Danger of injury!
Catch and dispose of drained coolant in drip tray (1) and if necessary special tool 00 2 030 (universal hydraulic lifting equipment).
Recycling:
Observe country-specific waste disposal regulations.
Necessary preliminary tasks:
- Follow notes for CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .
- Remove right INTAKE SILENCER HOUSING .
- Remove front UNDERBODY PROTECTION .
- Remove STIFFENING PLATE .
Draining coolant:
Open sealing cap (1) on coolant expansion tank (2).
Unlock and detach the coolant hose (1) at right on the radiator (2).
Drain, catch and dispose of coolant.
Adding coolant:
Connect the coolant hose (1) on the radiator (2) and lock.
The coolant hose (1) must audibly engage.
Use only recommended coolant.
Observe the appropriate water/antifreeze mixture ratio.
Observe CAPACITIES .
Observe bleeding instructions without fail.
Bleed and fill COOLING SYSTEM (HIGH-TEMPERATURE COOLING CIRCUIT) with vacuum filling unit.
Visual inspection of cooling system for tightness.
Required follow-up work:
- Install the right INTAKE SILENCER HOUSING .
- Install the STIFFENING PLATE .
- Install front UNDERBODY PROTECTION .