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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> Engine Lubrication, Engine Oil Cooling - 257 Chassis >> Testing & Repair >> Check Engine Oil Pressure - AR18.00-P-1250MSA

Check Engine Oil Pressure - AR18.00-P-1250MSA

Engine 256.9 in model 213, 238, 257, 290 

MODIFICATION NOTES

19.03.2021 Check values for oil pressure at Engine 256 BE18.00-P-1001-01B
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
INSPECT Check     
1 Check oil level of the engine and correct if necessary.    
REFER TO MAINTENANCE   Engine 256.9 in model 213, 238, 290 AP18.00-P-1812MKI
REFER TO MAINTENANCE   Engine 256.9 in model 257 AP18.00-P-1812BKI 
2 Warm up engine to normal operating temperature.    
3 Connect diagnostic device, start test in menu item "Determine oil pressure", and read off the values.    
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 213 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 238 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 257, 290 AD00.00-P-2000-06FR
4 Compare determined values with the specified values. Check values for oil pressure at If the tolerances are exceeded, ↔ perform corresponding repair. *BE18.00-P-1001-01B 
CHECK VALUES FOR OIL PRESSURE

Number Designation Engine 256
BE18.00-P-1001-01B Check values for oil pressure at operating temperature (engine oil) ° C 80
  Rpm 1/min 520
Oil pressure bar 0, 6...0, 8
  Rpm 1/min 700
Oil pressure bar 0, 7...0, 9
  Rpm 1/min 1000
Oil pressure bar 0, 9...1, 1
  Rpm 1/min 2000
Oil pressure bar 1, 5...1, 7
  Rpm 1/min 3000
Oil pressure bar 1, 7...1, 9
  Rpm 1/min 4000
Oil pressure bar 3, 1...3, 3