Remove/install divert air switchover valve · ar0940p3000msc · Mercedes-Benz WIS

AR09.40-P-3000MSC

Remove/install divert air switchover valve

21.11.2018

Engine

256.9 in model 167

Remove/install divert air switchover valve

1	Turbocharger
2	Screw
3	Bleed lines
4	Bolts
5	Electrical connector
Y101	Divert air switchover valve

P09.40-2573-11

 Warning	Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
Topical note	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
 	Remove/install
1	Remove upper engine cover.		AR01.10-P-2405MSC
2	Remove screw (2).	 Bolt, breather adapter to exhaust gas turbocharger	*BA01.20-P-1014-01L
3	Remove bleed lines (3) from exhaust gas turbocharger (1) and seal openings with suitable stop plugs.	 Record plug	*129589009100
4	Release and disconnect electrical connector (5).
5	Remove screws (4).	 Installation: Replace screws/bolts (4).
		 Bolt, switchover valve to turbocharger	*BA09.40-P-1013-02MRT
6	Remove overrun mode bypass air switchover valve (Y101) and seal opening with a clean rag.
7	Install in the reverse order.
8	Read out and delete fault memory.
			AD00.00-P-2000-06ME
 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
9	Carry out engine test run and check engine for proper leaktightness and leaktightness.

 Crankcase ventilation, cylinder head cover

Number	Designation		Engine 256.9
BA01.20-P-1014-01L	Bolt, breather adapter to exhaust gas turbocharger	Nm	8

 Turbocharger

Number	Designation		Engine 256.9
BA09.40-P-1013-02MRT	Bolt, switchover valve to turbocharger	Nm	7

129 589 00 91 00

Record plug

Referenced documents

ad0000p200006me Connect/disconnect diagnostic unit
ah0000n000101a Notes on self-locking nuts and bolts
ah0000p500001a Notes on avoiding damage through contamination and foreign objects
ah5400p000101a Information on preventing damage to electronic components due to electrostatic discharge
ar0110p2405msc Remove/install engine cover
as0000z000201a Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.
as0000z000501a 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.