LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 2007 >> E350 Base >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Mixture Formation - Testing & Repair - 211 Chassis >> Testing & Repair >> Remove/install heated O2 sensor - AR07.52-P-5303TS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Remove/install heated O2 sensor - AR07.52-P-5303TS

ENGINE 272, 273 in MODELS 211, 219 

Fig 1: Identifying Heated O2 Sensor Components - Shown On Models 211.056 /256
G04987465

Shown on models 211.056 /256 

Fig 2: Identifying Heated O2 Sensor Components - Shown On Models 211.087 /787
G04987466
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  to skin and eyes caused by handling hot or glowing objects. Wear safety gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
NOTES Notes on avoiding damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
1 Turn key in ignition switch to position "0".    
2 Remove rear section of lower engine compartment paneling IMPORTANTInstallation:  Install engine compartment paneling only after the engine test run.  
    Model 211 AR61.20-P-1105T
    Model 219 AR61.20-P-1105TX
3 Unclip electrical connector and electrical feed line for corresponding O2 sensor out of retaining clamps on transmission    
4 Disconnect electrical connector for corresponding O2 sensor    
5 Unscrew corresponding O2 sensor out of the catalytic converter completely IMPORTANTInstallation:  Coat the thread with heat resistant lubricant.  
    TORQUE SPECIFICATION *BA14.00-P-1002-01A 
    SPECIAL TOOL Figure
    Paste *BR00.45-Z-1005-06A 
6 Install in the reverse order    
7 Read out fault memory STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A
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 running engine Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.
AS00.00-Z-0005-01A
8 Conduct engine test run and check exhaust system for leaks    
TORQUE SPECIFICATION O2 SENSOR

Number Designation Engine 272 Engine 273
BA14.00-P-1002-01A O2 sensor to catalytic converter Nm 50 50
Fig 3: Identifying Box Wrench Bit (000 589 71 03 00)
G04987467
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnosis system, Compact Passenger Car 6511 1801 00
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1005-06A Paste A 000 989 76 51