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Home >> Mercedes Benz >> 2018 >> E300 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Complete Engine - 213 Chassis 1 Of 3 >> Testing & Repair >> Replace Full-Load Crankcase Ventilation System - AR01.20-P-0002MRX

Replace Full-Load Crankcase Ventilation System - AR01.20-P-0002MRX

Engine 274 in model 172, 205, 213, 253 

with code 494 (US version) 

Engine 274 in model 172, 205, 213, 253 

with code 945 (China Stage 6 exhaust treatment) 

Fig 1: Crankcase Ventilation System Bleed Lines Components Location - Engine 274 In Model 213 (With Code 494 Or 945)
G13743532Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove wide open throttle bleed line (21) Engine 274 in model 172, 205, 213, 253
with code 494 (US version)
Engine 274 in model 172, 205, 213, 253
with code 945 (China Stage 6 exhaust treatment)
 
    NOTES
Do not disconnect wide open throttle bleed line (21), partial load throttle bleed line (17), oil separator (25) and air intake pipe (7).
Leaks can occur otherwise.
In the event of damage to the full load bleed line (21), the partial load bleed line (17), the oil separator (25), or the air intake pipe (7),

Replace the wide open throttle bleed line (21), the partial load vent line (17), the oil separator (25) or the air intake pipe (7) completely.
AR01.20-P-9692MRU
2 Install in the reverse order