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How to change lambda sensor on MERCEDES-BENZ CLS (C219) – replacement guide
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Recommended replacement interval for the part category Lambda sensor : 100000 km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ CLS (C219) CLS 55 AMG (219.376), MERCEDES-BENZ CLS (C219) CLS 500 (219.375) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ CLS (C219) CLS 55 AMG (219.376), MERCEDES-BENZ CLS (C219) CLS 500 (219.375) … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Lambda Sensor for CLS (C219) and other MERCEDES-BENZ models
Lambda sensor
Alternative products

Wire brush
WD-40 spray
Electronic spray
High-temperature ceramic grease
Torque wrench
Combination spanner #22
Drive socket # 8
22-mm oxygen sensor socket
Ratchet wrench
Thread tap
Fender cover
Replacement: lambda sensor – MERCEDES-BENZ CLS (C219). AUTODOC experts recommend:
- After replacing the oxygen sensor, clear the trouble code from the electronic control unit and let the ECU adapt itself to the new sensor.
- All work should be done with the engine stopped.
Replacement: lambda sensor – MERCEDES-BENZ CLS (C219). Recommended sequence of steps:
- Step 1Before getting down to work, start the engine and let it warm up to operating temperature.Step 2Open the bonnet.Step 3Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.Step 4Shut off the engine.Step 5Lift the car using a jack or place it over an inspection pit.Step 6Undo the fasteners of the oil pan lower cover. Use a drive socket #8. Use a ratchet wrench.
- Step 7Remove the oil pan cover.
- Step 8Detach the oxygen sensor connector.
- Step 9Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
- Step 10Unscrew the oxygen sensor fastener. Use a 22-mm oxygen sensor socket. Use a ratchet wrench.
- Step 11Remove the oxygen sensor.
- Step 12Cut the thread for the new oxygen sensor. Use a thread tap. Use a ratchet wrench.
- Step 13Treat the oxygen sensor. Use high-temperature ceramic grease.
- Step 14Install the new oxygen sensor.
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