Remove/Install Exhaust Gas Temperature Sensor Of Exhaust Gas Aftertreatment Unit - AR49.20-P-1505MFG
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2023 Mercedes-Benz CLA45 AMG, 2023 Mercedes-Benz CLA35 AMG, 2023 Mercedes-Benz CLA250, 2022 Mercedes-Benz CLA45 AMG, and 2022 Mercedes-Benz CLA35 AMG. However, it is still accessible from the selected car via links, so may be relevant.
Model 118, 177, 247 with engine 139
with code 801 (YoM 20/1)
| 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 danger zone. | AS49.00-Z-0001-01A | |
| 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. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | AH00.00-P-0015-01CW | ||
| Remove/install | |||
| 1 | Attach support fixture for engine/transmission unit for repair operations. | AR01.10-P-0107MFA | |
| 2 | Remove union nut and pull temperature sensor upstream of gasoline particulate filter (B163/4) out of exhaust gas aftertreatment unit (5). | *BA07.04-P-1009-01R | |
| Paste, hot lubrication 1 kg, DBL 6879.20 | *BR00.45-Z-1005-06A | ||
| Fig 1 | |||
| 3 | Seal opening in the exhaust gas aftertreatment unit (5) with a suitable stop plug. | Fig 2 | |
| 4 | Remove right engine mount. | AR22.10-P-1102MFG | |
| 5 | Remove heat shield (1). | ||
| 6 | Remove union nut and pull temperature sensor upstream the catalytic converter (B19/7) out of the exhaust gas aftertreatment unit (5). | *BA07.04-P-1009-01R | |
| Paste, hot lubrication 1 kg, DBL 6879.20 | *BR00.45-Z-1005-06A | ||
| Fig 1 | |||
| 7 | Seal opening in the exhaust gas aftertreatment unit (5) with a suitable stop plug. | Fig 2 | |
| 8 | Unclip electric lines (4) from the brackets (3). | Do not subject electric lines (4) to tension, crush them, or kink them. This will cause damage to the electric lines (4) and impair their function. |
|
| 9 | Release and disconnect electrical connector (2). | ||
| 10 | Remove sensor unit of the temperature sensors (B175) from the cylinder head. | ||
| 11 | Remove temperature sensor upstream of catalytic converter (B19/7) and temperature sensor upstream of gasoline particulate filter (B163/4) with temperature sensors control unit (B175) upwards. | ||
| 12 | Install in the reverse order. | ||
| Check | |||
| 13 | Read out and delete fault memory. | ||
| AD00.00-P-2000-06MFA | |||
| 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 | |
| 14 | Perform engine test run. While doing so, check engine for proper operation and leak tightness. | ||
| 15 | Install lower engine compartment lining. | AR61.20-P-1105MFR | |
| 16 | Install upper engine cover. | ||
| AP01.10-P-2405-01K |
SENSORS, TRANSMITTERS
| Number | Designation | Engine 139 | |
|---|---|---|---|
| BA07.04-P-1009-01R | Exhaust temperature sensor to exhaust aftertreatment unit | Nm | 45 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1005-06A | Paste, hot lubrication 1 kg, DBL 6879.20 | A 000 989 76 51 |