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Home >> Mercedes Benz >> 2016 >> GLE550e >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 166 Chassis >> Maintenance >> Check Main Circuit Coolant Level - AP20.30-P-2050GB

Check Main Circuit Coolant Level - AP20.30-P-2050GB

ENGINE 157, 276, 278, 642, 651 in MODEL 166 

G12081523
REMOVING Remove     
1 Switch off ignition    
2
REFER TO TESTING & REPAIR
Open engine hood   AR88.40-P-1000GQ
3 Risk of injury  to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning  from swallowing coolant.
Unscrew cap (1) for coolant expansion reservoir (2)
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 
INSPECT Check     
4
NOTES
Check coolant level
Notes on coolant
  AH20.00-N-2080-01A 
    IMPORTANT The coolant level must, on a cold engine, reach up to the marking (arrow) in the coolant expansion reservoir.
When the coolant is warm, about 1 cm above the marking (arrow).
If coolant level is too low:

Check coolant for leaktightness and check coolant for antifreeze content subject to separate repair order.
 
INSTALLING Install     
5 Seal coolant expansion reservoir (2) with cap (1)    
6
REFER TO TESTING & REPAIR
Close engine hood   AR88.40-P-1000GQ