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Home >> Mercedes Benz >> 2016 >> SL550 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Air Intake, Turbocharging - 231 Chassis >> Testing & Repair >> Drain/fill low-temperature circuit coolant >> Drain/fill low-temperature circuit coolant - AR09.41-P-6834RKC

Drain/fill low-temperature circuit coolant - AR09.41-P-6834RKC

ENGINE 279 in MODEL 231 

Fig 1: Cap, Low-Temperature Circuit Coolant Expansion Reservoir, Clamp, Hose And Charge Air Cooler Circulation Pump
G11128462DANGERDANGERIMPORTANTIMPORTANTREMOVINGNOTESIMPORTANTIMPORTANTINSTALLINGIMPORTANTINSPECTDANGERCourtesy of MERCEDES-BENZ USA
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by vehicle manufacturer. AS00.00-Z-0010-01A
DANGER Risk of injury  to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning  from 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
IMPORTANT Notes on sensor system for trunk lid opening/closing   AH80.61-P-0001-01A
IMPORTANT Notes on coolant   AH20.00-N-2080-01A
REMOVING Remove     
1 Unscrew cap (1) on low-temperature circuit coolant expansion reservoir (2) NOTES
Unscrew cap (1) slowly on low-temperature circuit coolant expansion reservoir (2) and reduce overpressure
Scolding can occur otherwise due to spitting out, hot coolant.
 
2 Remove bottom engine compartment paneling IMPORTANT Only remove center and front engine compartment paneling. AR61.20-P-1105RK
3 Disconnect hose (4) at the charge air cooler circulation pump (M44) IMPORTANT to do this loosen clamp (3) and catch escaping coolant in a suitable container.  
INSTALLING Install     
4 Attach hose (4) at the charge air cooler circulation pump (M44) IMPORTANT To do this mount clamp (3) and check for correct seating.  
5 Venting air from low-temperature circuit   AR20.00-P-1145H
INSPECT Check     
6 Check low-temperature circuit cooling system for leaktightness   AR09.41-P-1010RKC 
DANGER Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
7 Perform an engine test run; check cooling system low-temperature circuit for proper function    
8 Install lower engine compartment paneling   AR61.20-P-1105RK