Check main circuit coolant level

AP20.30-P-2050EW

Check main circuit coolant level

24.02.2015

ENGINE

111, 112, 113, 271, 272, 611, 612, 642, 646 in MODEL 203

ENGINE

156, 157, 271, 272, 273, 274, 276, 278, 642, 651 in MODEL 212

ENGINE

156, 157, 272, 273, 276, 278, 629, 642, 651 in MODEL 221

ENGINE

156, 157, 273, 278 in MODEL 216

ENGINE

156, 271, 272, 274, 276, 642, 646, 651 in MODEL 204

ENGINE

157, 274, 276, 278, 642, 651 in MODEL 218

ENGINE

271, 272, 273, 274, 276, 278, 642, 651 in MODEL 207

ENGINE

273, 629, 642 in MODEL 164.8

ENGINE

275 in MODEL 216, 221

Main circuit

Shown on model 204

1

Cap

2

Coolant expansion reservoir



Remove

1

Switch off ignition

2

Open engine hood

MODEL 164.8, 203, 204, 207, 212, 216, 218, 221



MODEL 204.3, 207, 212

AR88.40-P-1000EW

 MODEL 204.3, 207, 212 with CODE U60 (Pedestrian protection)
Moving the engine hood to the vertical position:
Detach left and right clamping levers at the upper left and right hinges.

 Danger !

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

3

Unscrew cap (1) for coolant expansion reservoir (2)



Check

4

Check coolant level



Notes on coolant

AH20.00-N-2080-01A

 The coolant level on a cold engine must 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.



Install

5

Seal coolant expansion reservoir (2) with cap (1)

6

Close engine hood

MODEL 164.8, 203, 204, 207, 212, 216, 218, 221



MODEL 204.3, 207, 212

AR88.40-P-1000EW

 MODEL 204.3, 207, 212 with CODE U60 (Pedestrian protection)
Close engine hood:
Mount left and right clamping levers at the upper left and right hinges.