Remove/install knock sensors - AR15.12-P-2184CMG

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2016 Mercedes-Benz E63 S AMG, 2016 Mercedes-Benz E400, 2016 Mercedes-Benz E350, 2016 Mercedes-Benz E300, and 2016 Mercedes-Benz E250. However, it is still accessible from the selected car via links, so may be relevant.

ENGINES 156 in MODEL 204, 212

Fig 1: Knock Sensors Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of death caused by vehicle slipping or toppling off the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove left knock sensor (A16/2)
1	Remove heat shield (2) by unscrewing bolt (1)		*BA15.10-P-1002-02C
2	Release and disconnect electrical connector on knock sensor (A16/2)
3	Unscrew bolt (3) and remove knock sensor (A16/2)		*BA15.10-P-1001-02C
	Remove right knock sensor (A16/1)
4	Detach ground line from battery	Insulate ground line clamp as a protection against unintentional contact of ground line with ground point of battery.
		Model 204	AR54.10-P-0003CW
		Model 212	AR54.10-P-0003EW
	Notes on battery	Model 212	AH54.10-P-0001-01A
5	Remove front engine cover and both engine air intake ducts	Do not tilt front engine cover, but lift upwards vertically otherwise the retaining lugs can break off.
6	Remove bottom engine compartment paneling
7	Remove bolts (4) of front engine mounts (5, 6) on front axle carrier	Model 204 only	AR22.10-P-1260CMG
8	Loosen right engine mount (5) from engine support by loosening bolt	For model 212, remove heat shield	AR22.10-P-1260CMG
9	Mount engine hoist	Model 204 only	AR33.10-P-0105CW
10	Raise engine	Model 204 only Ensure that engine and its detachable components are not lying against the body! Do not over-tension coolant lines and electric cables!
11	Unscrew loosened bolt from the right engine mount (5) at the engine support from the bottom and place engine mount along with the heat shield to one side	Model 204 only Do not remove catalytic converter.	AR22.10-P-1260CMG
12	Remove protection against accidental contact for circuit 30 electrical line from starter		AR15.30-P-7100CMG
13	Remove electrical line terminal 30 and electrical line clamping device 50 on starter and place to one side		AR15.30-P-7100CMG
14	Unscrew bolt (1) and remove heat shield (2)		*BA15.10-P-1002-02C
15	Release and disconnect electrical connector on knock sensor (A16/1)
16	Unscrew bolt (3) and remove knock sensor (A16/1)		*BA15.10-P-1001-02C
17	Install in the reverse order
18	Connect STAR DIAGNOSIS and read fault memory
	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 engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
19	Carry out engine test run		AS00.00-Z-0005-01A

KNOCK SENSORS

Number	Designation		Engine 156, 159
BA15.10-P-1001-02C	Bolt, knock sensor to cylinder crankcase	Nm	20
BA15.10-P-1002-02C	Bolt connecting heat shield of knock sensor to crankcase	Nm	20