Remove/install knock sensors · ar1512p2184mnf · Mercedes-Benz WIS

AR15.12-P-2184MNF

Remove/install knock sensors

03.04.2018

Engine	176 in model 463
	up to model year 2019

P15.12-2198-09

Knock sensor

P15.12-2199-09

3	Knock sensor	6	Bracket
4	Knock sensor	7	Power steering pump bracket
5	Starter wiring harness

 	Remove/install
1	Unclip electrical connection from knock sensor (3) at left cylinder head cover	When removing the knock sensor (3).
2	Detach bracket on starter wiring harness (5) on crankcase	When removing the knock sensor (3).
		 Bolt, starter wiring harness to oil pan/crankcase/cylinder head/firewall	*BA15.30-P-1002-01T
3	Detach bracket on starter wiring harness (5) on transmission	When removing the knock sensor (3).
4	Unclip wiring harness of knock sensor (3) on left cylinder head	When removing the knock sensor (3).
5	Remove left charge air distributor	When removing the knock sensor (4).
			AR09.41-P-8683MNF
6	Detach power steering pump and place with attached lines to one side	When removing the knock sensor (4).
		Engine 176 in model 463 as of model year 2016 up to model year 2019	AR46.30-P-0500GWA
7	Detach coolant line holder (6) on the power steering pump bracket (7)	When removing the knock sensor (4).
8	Remove screw/bolts from power steering pump bracket (7) and remove power steering pump bracket (7)	When removing the knock sensor (4).
		 Model 463.234/239 with engine 176 up to model year 2019Screw/bolt, power steering pump bracket to belt tensioner/engine support bracket	*BA46.30-P-1027-01B
9	Disconnect cable ties at electrical line from knock sensor (4)	When removing the knock sensor (4).
		 Installation: Replace cable tie.
10	Disconnect electrical connection for knock sensor (1)	When removing the knock sensor (1).
11	Disconnect electrical connection for knock sensor (2)	When removing the knock sensor (2).
12	Disconnect electrical connection for knock sensor (3)	When removing the knock sensor (3).
13	Disconnect electrical connection for knock sensor (4)	When removing the knock sensor (4).
14	Remove screw/bolt of knock sensor (1) and remove knock sensor (1)	When removing the knock sensor (1).
		 Bolt, knock sensor to crankcase	*BA15.10-P-1001-02G
15	Remove screw/bolt of knock sensor (2) and remove knock sensor (2)	When removing the knock sensor (2).
		 Bolt, knock sensor to crankcase	*BA15.10-P-1001-02G
16	Remove screw/bolt of knock sensor (3) and remove knock sensor (3)	When removing the knock sensor (3).
		 Bolt, knock sensor to crankcase	*BA15.10-P-1001-02G
17	Remove screw/bolt of knock sensor (4) and remove knock sensor (4)	When removing the knock sensor (4).
		 Bolt, knock sensor to crankcase	*BA15.10-P-1001-02G
18	Install in the reverse order
19	Check engine oil level, adjust to correct level if necessary
			AP18.00-P-0101GE
 Warning	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
20	Perform an engine test run and check engine for proper function

 Knock sensors

Number	Designation		Engine 176
BA15.10-P-1001-02G	Bolt, knock sensor to crankcase	Nm	20

 Starter

Number	Designation		Engine 176
BA15.30-P-1002-01T	Bolt, starter wiring harness to oil pan/crankcase/cylinder head/firewall	Nm	9

 Power steering pump

Number	Designation		Model 463.234/239
BA46.30-P-1027-01B	Screw/bolt, power steering pump bracket to belt tensioner/engine support bracket	Nm	20

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