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Home >> Mercedes Benz >> 2019 >> C300 4Matic, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 346 (Engine Cooling System - 253 Chassis) >> Maintenance >> Replace Low-Temperature Circuit Coolant >> Replace Low-Temperature Circuit Coolant - AP20.00-P-2083E

Replace Low-Temperature Circuit Coolant - AP20.00-P-2083E

WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.

Engine 274 in model 172, 205, 253 

Shown on engine 274.9 in model 212.0 

G12935387Courtesy 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-P-2080-01KOA 
INSPECT Check     
1 Check coolant level in coolant expansion reservoir for low-temperature circuit (2).   AP20.30-P-2052L 
  Drain off     
2 REFER TO TESTING & REPAIR Drain coolant in low-temperature circuit. Engine 274 in model 172 AR09.41-P-6834CD
REFER TO TESTING & REPAIR   Engine 274 in model 205, 253 AR09.41-P-6834LW
  Pour in     
3 REFER TO TESTING & REPAIR Pour new coolant into low-temperature circuit. Engine 274 in model 172 AR09.41-P-6834CD
REFER TO TESTING & REPAIR   Engine 274 in model 205, 253 AR09.41-P-6834LW
REFER TO CAPACITIES & SPECIFICATIONS Coolant specifications   BB00.40-P-0310-01A