G3/3 | Left oxygen sensor upstream of catalytic converter |
G3/3x1 | Electrical connection for left oxygen sensor upstream of catalytic converter |
G3/4 | Right oxygen sensor upstream of catalytic converter |
G3/4x1 | Electrical connection for right oxygen sensor upstream of catalytic converter |
G3/5 | Left oxygen sensor downstream of catalytic converter |
G3/5x1 | Electrical connection for left oxygen sensor downstream of catalytic converter |
G3/6 | Right oxygen sensor downstream of catalytic converter |
G3/6x1 | Electrical connection for right oxygen sensor downstream of catalytic converter |
P07.52-2034-06
1 | Left catalytic converter |
5 | Transmission |
G3/3 | Left oxygen sensor upstream of catalytic converter |
G3/3x1 | Electrical connection for left oxygen sensor upstream of catalytic converter |
G3/5 | Left oxygen sensor downstream of catalytic converter |
G3/5x1 | Electrical connection for left oxygen sensor downstream of catalytic converter |
P07.52-2044-11
2 | Right catalytic converter |
5 | Transmission |
G3/4 | Right oxygen sensor upstream of catalytic converter |
G3/4x1 | Electrical connection for right oxygen sensor upstream of catalytic converter |
G3/6 | Right oxygen sensor downstream of catalytic converter |
G3/6x1 | Electrical connection for right oxygen sensor downstream of catalytic converter |
P07.52-2045-11
Caution | Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. | |
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
| Remove/install | ||
1 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m) | ||
2 | Secure vehicle on vehicle lift |
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Engine 157 in model 212, 218 | |||
3 | Remove center and rear sections of the lower engine compartment paneling | ||
Installation: Install center and rear sections of lower engine compartment paneling only after a leak test. | |||
4 | Detach rear engine crossmember from underfloor and lower transmission | ||
Remove left oxygen sensors (G3/3 or G3/5) | |||
5 | Detach left CAT from exhaust manifold and transmission and secure against falling down |
| |
Engine 157 in model 212, 218 | |||
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6 | Unclip electrical connection (G33x1, G35x1) for oxygen sensor from bracket on transmission (5) | ||
7 | Detach oxygen sensor (G3/3 or G3/5) from catalytic converter (1) | Installation: Coat thread with heat-resistant lubricant. | |
Oxygen sensor upstream of catalytic converter | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Box wrench bit | |||
Remove right oxygen sensors (G3/4 or G3/6) | |||
8 | Detach right CAT from exhaust manifold and transmission and secure against falling down |
| |
Engine 157 in model 212, 218 | |||
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9 | Unclip electrical connection (G34x1, G36x1) for oxygen sensor from bracket on transmission (5) | ||
10 | Detach oxygen sensor (G3/4 or G3/6) from catalytic converter (2) | Installation: Coat thread with heat-resistant lubricant. | |
Oxygen sensor upstream of catalytic converter | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Box wrench bit | |||
11 | Install in the reverse order | ||
12 | Read out and clear fault memory | ||
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Warning | Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | |
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. | |
13 | Carry out an engine test run and check exhaust system for leaktightness |
000 589 71 03 00
Box wrench bit