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Remove/install intake air temperature sensor - AR07.52-P-1465GZB

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ENGINES 642 in MODEL 164, 251 

Fig 1: Identifying Intake Air Temperature Sensor Components
G06878057Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
MODIFICATION NOTES

5.8.10 "Connect STAR DIAGNOSIS and reset values in engine control unit" added Step 5
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, lift gates or sliding roof Keep body parts and limbs well clear of moving parts. AS00.00-Z-0011-01A
1 Remove right air filter housing (2) Model 164 AR09.10-P-1150GZC
Model 251 AR09.10-P-1150RTC
2 Remove engine air intake duct downstream of the air filter (1) IMPORTANT The intake air temperature sensors are located in the hot film MAF sensor, left (B2/6) and hot film MAF sensor, right (B2/7) respectively.
IMPORTANTInstallation:  The left hot film MAF sensor (B2/6) and right hot film MAF sensor (B2/7) must be replaced along with the engine intake air duct downstream of air filter (1) in the event of a defect.
AR09.10-P-8130GZB
3 Install in the reverse order    
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.
AS00.00-Z-0005-01A
4 Carry out engine test run    
5 Connect STAR DIAGNOSIS and reset value in engine control unit IMPORTANT When replacing hot film MAF sensor (B2/6 or B2/7) reset value for HFM-SFI drift compensation. Select following menu item:
  • Control unit
  • Adaptations
  • Learning processes

IMPORTANT HFM-SFI: hot film sequential multiport fuel injection/ignition system
AD00.00-P-2000-04A