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Home >> Smart >> 2015 >> Fortwo Electric Drive, 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 451 Chassis >> Testing & Repair >> Remove/install shutoff valve bracket - AR20.00-P-0301MCC

Remove/install shutoff valve bracket - AR20.00-P-0301MCC

ENGINES 132.9 in MODELS 451.3/4 as of 31.8.10 

Fig 1: Identifying Shutoff Valve Bracket Remove/Install Components
G10978165Courtesy of MERCEDES-BENZ USA
REMOVING Removing     
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 maintenance flap    
2 Turn cap on expansion reservoir one half turn counterclockwise, relieve pressure and then unscrew cap from expansion reservoir.    
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. AS00.00-Z-0010-01A
3 Raise vehicle with vehicle lift    
4 Remove starter Except on model 451.334/380/480 AR15.30-P-7100MCC
5 Remove bolt (4) on heating system shutoff valve bracket (1)    
6 Pinch off coolant hoses (3, 6) with clamping devices (5) SPECIAL TOOL Clamping device Figure
7 Loosen spring clamp (2) on coolant hoses (3)    
8 Remove coolant hose (3) from heating system shutoff valve (Y16/2) IMPORTANT Collect escaping coolant.  
9 Remove heating system shutoff valve bracket (1) from heating system shutoff valve (Y16/2)    
INSTALLING Install     
10 Place heating system shutoff valve bracket (1) on heating system shutoff valve (Y16/2) IMPORTANT Ensure that heating system shutoff valve (Y16/2) is seated correctly in heating system shutoff valve bracket (1).  
11 Position coolant hose (3) on heating system shutoff valve (Y16/2) and fasten using spring clamps (2)    
12 Remove clamping device (5) SPECIAL TOOL Clamping device Figure
13 Position heating system shutoff valve bracket (1) on transmission and tighten with bolt (4)    
14 Install starter Except on model 451.334/380/480 AR15.30-P-7100MCC
15 Lower vehicle with vehicle lift    
16 Fill cooling system via expansion reservoir * Not for USA AR20.00-P-1142MCC
    * For USA only AR20.00-P-1142MCU 
17 Close maintenance flap    
Fig 2: Identifying Clamping Device (000 589 54 37 00)
G09973558Courtesy of MERCEDES-BENZ USA