Remove/Install Engine Compartment Fire Extinguishing System Temperature Sensor - AR86.10-P-0127LFS

Model 222.1 

With Code Z21 (Fire extinguishing system) 

Fig 1: Engine Compartment Fire Extinguishing System Temperature Sensor Components Location - Model 222.1 With Code Z21

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Switch off ignition and remove transmitter key
2	Remove panelings (3)
3	Separate electrical connectors (2)
4	Remove screws (4)
5	Connect approx. 1 m long cable with electrical wiring harness (5) on engine compartment fire extinguishing system temperature sensor (1)	When removing Engine compartment fire extinguishing system temperature sensor (1) on passenger side. The cable serves as a pulling aid when installing the engine compartment fire extinguishing system temperature sensor (1) on the passenger side.
6	Remove Engine compartment fire extinguishing system temperature sensor (1)
7	Install in the reverse order
	Check
8	Perform self-test for fire extinguishing system		AR86.10-P-0101-01LFS