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Remove/install expansion reservoir - AR20.30-P-4950GZB

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ENGINE 642 in MODEL 164 

Fig 1: Removing/Installing Expansion Reservoir
G00544424Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof Keep body parts and limbs well clear of moving parts. AS00.00-Z-0011-01A
DANGER Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning  caused by swallowing coolant. Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A 
NOTES Notes on coolant   AH20.00-N-2080-01A 
1 Open engine hood   AR88.40-P-1000GZ
2 Open the cap (2) of the expansion reservoir (1) Turn the cap (2) half a turn counterclockwise and release the excess pressure. Then unscrew the cap (1).  
3 Suction off the coolant from the expansion reservoir (1) SPECIAL TOOL Hand pump Fig 2
REFER TO CAPACITIES & SPECIFICATIONS Coolant specifications Sheet 310.1 BB00.40-P-0310-01A 
REFER TO CAPACITIES & SPECIFICATIONS Anticorrosion/antifreeze agents (Sheet 325.0) Sheet 325.0 BB00.40-P-0325-00A 
4 Detach the overflow hose (3) from the expansion reservoir (1)    
5 Detach the coolant hose (4) from the expansion reservoir (1)    
6 Unclip and detach the coolant hose (5) at the expansion reservoir (1)    
7 Disconnect the electrical connector (6) from the coolant level indicator switch (S41)    
8 Screw down nut (7)    
9 Take out the expansion reservoir (1)    
10 Install in the reverse order    
11 Inspect cooling system for leaks   AR20.00-P-1010GZB 
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.
AS00.00-Z-0005-01A
12 Conduct engine test run and check the engine for leaks In the event of oil loss determine and eliminate cause, otherwise malfunctions, transmission damage, and serious environmental pollution may occur.  
Fig 2: Identifying Hand Pump (210 589 00 71 00)
G06878180Courtesy of MERCEDES-BENZ OF NORTH AMERICA.