LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2020 >> SLC43 AMG Base >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Air Intake, Turbocharging - 172 Chassis >> Testing & Repair >> Remove/Install Low-Temperature Circuit Expansion Reservoir - AR09.41-P-0001RKA

Remove/Install Low-Temperature Circuit Expansion Reservoir - AR09.41-P-0001RKA

ENGINE 276.8 in model 172 

ENGINE 276.8 in model 231 

Fig 1: Low-Temperature Circuit Expansion Reservoir Components Location - Engine 276.8 In Model 172
G13845465Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  to skin and eyes suffering scalding from contact with hot coolantspray. 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
Notice  Notes on coolant   AH20.00-N-2080-01A
  Notes on coolant level   AH20.00-P-1142-01CW
REMOVING
INSTALLING
Remove/install     
1 Remove upper engine cover    
2 Remove right engine air intake duct    
3 Slowly open and remove cap (1) IMPORTANT The coolant temperature should be approx. 40°C.  
4 Suction off coolant out of expansion reservoir (4) SPECIAL TOOL Hand pump Fig 2
5 Detach coolant hose (2) from expansion reservoir (4) and capture escaping fluid in a suitable container INSTALLATION IMPORTANT : Replace O-ring. AR20.20-P-7441-01RQ
6 Turn expansion reservoir (4) in direction of arrow and lift    
7 Detach coolant hose (3) from expansion reservoir (4) and catch escaping fluid in a suitable container   AR20.20-P-7441-01RQ
8 Remove expansion reservoir (4) upward    
9 Install in the reverse order    
INSPECT Check     
10 Check coolant level and correct if necessary FLUID SPECIFICATION Cooling system *BF20.00-P-1001-02BA 
11 Check low temperature circuit cooling circuit for leaktightness   AR09.41-P-1010RKA 
WARNING 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
12 Carry out engine test run and, in doing so, check the engine cooling system for proper operation and leaktightness    
COOLING SYSTEM

Number Designation ENGINE 276.8 in model 172 ENGINE 276 in model 231
BF20.00-P-1001-02BA Cooling system Workshop replacement amount Main circuit L ≈10, 4 ≈10, 8
Low-temperature circuit L ≈3, 4 ≈1, 9
Antifreeze/water Up to -37°C % 50/50 50/50
As of -38°C % 55/45 55/45
Specifications for Operating Fluids BB00.40-P-0310-01A BB00.40-P-0310-01A
Specifications for Operating Fluids BB00.40-P-0325-06A BB00.40-P-0325-00A
Specifications for Operating Fluids BB00.40-P-0326-06A BB00.40-P-0326-00A
Fig 2: Identifying Hand Pump (210 589 00 71 00)
G11975242Courtesy of MERCEDES-BENZ USA