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Home >> Mercedes Benz >> 2019 >> CLS450 Base >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine Cooling System - 257 Chassis >> Maintenance >> Complete Overview, Check Coolant Level In The Main Circuit - AP20.30-P-2049U

Complete Overview, Check Coolant Level In The Main Circuit - AP20.30-P-2049U

Model 117, 118, 156, 164, 166, 167, 169, 171, 172, 176, 177, 190, 197.3/4, 203, 204, 205, 206, 207, 209, 211, 212, 213, 216, 217, 218, 219, 221, 222, 223, 230, 231, 232, 238, 242, 243, 245, 246, 247, 251, 253, 257, 290, 292, 293, 295, 297, 461, 463 

  If the coolant level is too low, check the cooling system for fluid loss and the coolant for antifreeze content, subject to separate repair order     
  Check main circuit coolant level Model 117, 176 with engine 133, 270, 607, 651
Model 156 with engine 133, 270, 607, 651
Model 171 with engine 113, 271, 272
Model 211 with engine 112, 113, 156, 271, 272, 273, 628, 629, 642, 646, 647, 648
Model 242 with engine 270
Model 246 with engine 270, 607, 651
AP20.30-P-2050KN
  Check main circuit coolant level Model 118 with engine 260, 282, 608, 654 AP20.30-P-2050R
  Check main circuit coolant level Model 118, 177, 247 with engine 139 AP20.30-P-2050T
  Check main circuit coolant level Model 164.1 with engine 113, 156, 272, 273, 629, 642
Model 251 with engine 113, 156, 272, 273, 276, 642
AP20.30-P-2050GA
  Check main circuit coolant level Model 164.8 with engine 273, 629, 642
Model 203 with engine 111, 112, 113, 271, 272, 611, 612, 642, 646
Model 204 with engine 156, 271, 272, 274, 276, 642, 646, 651
Model 207 with engine 271, 272, 273, 274, 276, 278, 642, 651
Model 212 with engine 156, 157, 271, 272, 273, 274, 276, 278, 642, 651
Model 216 with engine 156, 157, 273, 278
Model 216, 221 with engine 275
Main circuit Model 218 with engine 157, 274, 276, 278, 642, 651
Model 221 with engine 156, 157, 272, 273, 276, 278, 629, 642, 651
AP20.30-P-2050EW
  Check main circuit coolant level Model 166 with engine 157, 276, 278, 642, 651 AP20.30-P-2050GB
  Check main circuit coolant level Model 167 with engine 176, 177, 256, 264, 274, 654, 656 AP20.30-P-2050N
  Check main circuit coolant level Model 169, 245 with engine 266, 640, 780 AP20.30-P-2050AK
  Check main circuit coolant level Model 172 with engine 152, 271, 274, 276, 651 AP20.30-P-2050D
  Check main circuit coolant level Model 177 with engine 260, 282, 608, 654 AP20.30-P-2050J
  Check main circuit coolant level Model 190 with engine 178 AP20.30-P-2050A
  Check main circuit coolant level Model 197 with engine 159 AP20.30-P-2050RQ
  Check main circuit coolant level Model 205 with engine 177, 264, 274, 276, 626, 651, 654 AP20.30-P-2050CAA
  Check main circuit coolant level Model 206 with engine 254, 654 AP20.30-P-2050AF
  Check main circuit coolant level Model 209 with engine 112, 113, 156, 271, 272, 273, 612, 642, 646 AP20.30-P-2050Q
  Check main circuit coolant level Model 213 with engine 177, 256, 264, 274, 276.8, 642, 654, 656 AP20.30-P-2050F
  Check main circuit coolant level Model 217 with engine 157, 176, 177, 276.8. 278, 279
Model 222 with engine 157, 176, 177, 256.9, 264, 276, 277, 278, 279, 642, 651, 656
AP20.30-P-2050HA
  Check main circuit coolant level Model 219 with engine 113, 156, 272, 273, 642 AP20.30-P-2050TX
  Check main circuit coolant level Model 223 with engine 176, 256, 279, 656 AP20.30-P-2050P
  Check main circuit coolant level Model 230 with engine 112, 113, 156, 272, 273
Model 230 with engine 275 Main circuit
AP20.30-P-2050SLC
  Check main circuit coolant level Model 231 with engine 157, 276, 278, 279 AP20.30-P-2050H
  Check main circuit coolant level Model 238 with engine 256, 264, 274, 276.8, 642, 654, 656 AP20.30-P-2050I
  Check main circuit coolant level Model 242 with engine 780 AP20.30-P-2050B
  Check main circuit coolant level Model 247 with engine 260, 282, 608, 654 AP20.30-P-2050O
  Check main circuit coolant level Model 253 with engine 177, 264, 274, 276, 642, 651, 654, 656 AP20.30-P-2050E
  Check main circuit coolant level Model 253.99 with engine 780 AP20.30-P-2050M
  Check main circuit coolant level Model 257 with engine 256.9, 264, 654, 656 AP20.30-P-2050K 
  Check main circuit coolant level Model 290 with engine 177, 256.9 AP20.30-P-2050L
  Check main circuit coolant level Model 292 with engine 157, 276.8, 278, 642 AP20.30-P-2050C
  Check main circuit coolant level Model 297 with engine 780 AP20.30-P-2050ES
  Check main circuit coolant level Model 463 with engine 157, 273, 279, 642
Model 463 with engine 176 up to model year 2019
AP20.30-P-2050G
  Check main circuit coolant level Model 463 with engine 176 as of model year 2019
Model 463 with engine 177, 264, 656
AP20.30-P-2050GG
  The following coolant circuit is also defined as the main circuit     
  Check coolant level in coolant expansion reservoir for cooling circuit of high-voltage battery Model 243 with engine 780 AP08.50-P-2053G
  Check coolant level in coolant expansion reservoir for cooling circuit of high-voltage battery Model 293 with engine 780 AP08.50-P-2053A