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

ENGINE 275 in MODEL 215, 216, 220, 221, 230 

Illustrated on model 230.476 

Fig 1: Identifying Knock Sensors Remove/Install Components - Engine 275 In Model 215,216

Fig 2: Identifying Knock Sensors Remove/Install Components

	Remove/install
1	Turn key in electronic ignition switch control unit to position "0"	Vehicles with Keyless Go code 889: Press start/stop button repeatedly until ignition is switched off.
2	Remove lower engine compartment paneling	Model 215, 220	AR61.20-P-1105M
		Model 216 Model 221 without code (Z07) Top protection	AR61.20-P-1105SX
		Model 221 with code (Z07) Top protection	AR61.20-P-1105SXS
		Model 230	AR61.20-P-1105R
	Left front knock sensor
3	Disconnect electrical connector for front knock sensor (left side of engine) (A29/1)
4	Unscrew bolt (2) and remove front knock sensor (left side of engine) (A29/1)		*BA15.10-P-1001-02B
	Left rear knock sensor
5	Remove complete exhaust system	Model 230	AR49.10-P-7000RB
6	Remove heat shield (22)	Model 230
7	Unscrew bolts (1a) and take out heat shield (1).	Model 230
			*BA15.10-P-1002-02B
8	Disconnect electrical connector for rear knock sensor (left side of engine) (A29/2)
9	Unscrew bolt (2) and remove rear knock sensor (left side of engine) (A29/2)		*BA15.10-P-1001-02B
	Right front knock sensor
10	Remove right engine support	Model 215, 220	AR22.10-P-4320IX
		Model 216, 221	AR22.10-P-1260SZ
		Model 230	AR22.10-P-1260R
11	Disconnect electrical connector for front knock sensor (right side of engine) (A30/1)
12	Unscrew bolt (2) and remove front knock sensor (left side of engine) (A301)		*BA15.10-P-1001-02B
	Right rear knock sensor
	Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries	No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Only pour battery acid into suitable and appropriately marked containers.	AS54.10-Z-0001-01A
13	Disconnect ground line(s) at battery(ies)	Model 215, 220	AR54.10-P-0003I
		Model 216, 221	AR54.10-P-0003SX
		Model 230	AR54.10-P-0003R
14.1	Remove complete exhaust system	Model 230	AR49.10-P-7000RB
14.2	Remove right catalytic converter	Model 215, 220	AR49.10-P-5500M
14.3	Remove heat shield from starter	Model 216, 221 See: Remove/install starter.	AR15.30-P-7100SZ
15	Disconnect electrical connector for rear knock sensor (right side of engine) (A30/2)
16	Unscrew bolt (2) and remove rear knock sensor (right side of engine) (A30/2)		*BA15.10-P-1001-02B
17	Install in the reverse order
18	Read out fault memory and erase if necessary	Stored faults which may be caused by disconnecting cables or by simulation during test operations, must be erased in the fault memory after completing the work.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A

KNOCK SENSORS