Remove/install exhaust system · ar4910p7142mrh · Mercedes-Benz WIS

AR49.10-P-7142MRH

Remove/install exhaust system

12.12.2018

Engine

264 in model 213, 238, 257

Modification notes

16.11.2018	Method description for gasoline particulate filter revised.	Operation steps 5, 6, 9, 14 added.
23.11.2018	Repair materials added.	Operation steps 12, 15.

P49.10-3242-09

Shown on engine 264 in model 238 except code 598 (Gasoline particulate filter (GPF) with sensor system)

1	Clip	4	Elastomer bearing
2	Bracket	M16/53	Left exhaust flap actuator motor
3	Exhaust system

P49.10-A020-09

Shown on engine 264 in model 238 with code 598 (Gasoline particulate filter (GPF) with sensor system)

1	Clip	5	Union nuts
2	Bracket	6	Screw
3	Exhaust system	B163/4	Temperature sensor upstream of gasoline particulate filter
4	Elastomer bearing	M16/53	Left exhaust flap actuator motor

 Warning	Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.	Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.	AS49.00-Z-0001-01A
 Caution	Risk of injury caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Topical note	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
 	Remove/install
1	Remove center and rear sections of lower engine compartment lining.	Engine 264 in model 213, 238	AR61.20-P-1105LWE
		Engine 264 in model 257	AR61.20-P-1105FR
		 Installation: Only install center and rear lower rear engine compartment paneling again after leak test.
2	Remove left and right underfloor paneling.	Engine 264 in model 213, 238	AR61.30-P-1001LWE
		Engine 264 in model 257	AR61.30-P-1001FR
3	Remove rear diagonal struts.	Engine 264 in model 213.2, 238.4
			AR61.10-P-5142LWP
4	Remove rear reinforcement.	 Bolt, rear reinforcement to frame floor assembly	*BA61.10-P-1004-01L
5	Remove temperature sensor upstream of gasoline particulate filter (B163/4) and place to one side.	Engine 264 in model 213, 238, 257 with code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR07.04-P-0070MRH
6	Unscrew union nuts (5) and place lines to one side.	Engine 264 in model 213, 238, 257 with code 598 (Gasoline particulate filter (OPF) with sensor system)
		 Installation: Coat thread with heat-resistant lubricating paste.
		Paste, hot lubrication 1 kg, DBL 6879.20	*BR00.45-Z-1005-06A
		 Union nut, line, differential pressure sensor, gasoline particulate filter	*BA07.04-P-1003-02B
		 Box wrench bit	*000589700300
7	Disconnect electrical connector at left exhaust gas flap actuator motor (M16/53).
8	Support exhaust system(3).
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
9	Unscrew screw/bolt (6).	Engine 264 in model 213, 238, 257 with code 598 (Gasoline particulate filter (OPF) with sensor system)
		 Engine 264 in model 213, 257 with code 598 (Gasoline particulate filter (OPF) with sensor system)Screw, bracket of pressure line to gasoline particulate filter	*BA49.10-P-1017-02P
		 Engine 264 in model 238 with code 598 (Gasoline particulate filter (OPF) with sensor system)Screw, bracket of pressure line to gasoline particulate filter	*BA49.10-P-1016-02M
10	Remove clamp(1).	 Installation: Replace clamp(1).
		 Engine 264 in model 238Bolt, exhaust system clamp to catalytic converter	*BA49.10-P-1002-02M
		 Engine 264 in model 213, 257Clamp at catalytic converter and front exhaust system	*BA49.10-P-1002-02P
11	Unscrew nut of decoupling element from bracket (2).	 Engine 264 in model 213, 257Nut, decoupling element for front exhaust system to bracket	*BA49.10-P-1010-02P
		 Engine 264 in model 238Nut, decoupling element for front exhaust system to bracket	*BA49.10-P-1008-02M
12	Remove elastomer bearings(4) from exhaust system (3).	 Installation: Lightly wet elastomer bearings (4) with lubricant.
		Lubricant, rubber assembly 1 l	*BR00.45-Z-1010-06A
13	Remove exhaust system (3).
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
		 Helper required.
	Check
14	Check decoupling element for damage and wear.	If complaints are present,
		
		Replace decoupling element.
		 Engine 264 in model 213, 257Nut, decoupling element for front exhaust system to bracket	*BA49.10-P-1010-02P
		 Engine 264 in model 238Nut, decoupling element for front exhaust system to bracket	*BA49.10-P-1008-02M
15	Check elastomer bearings (4) for damage and wear.	If complaints are present,
		
		Replace elastomer bearing(4).
		 Installation: Lightly wet elastomer bearings (4) with lubricant.
		Lubricant, rubber assembly 1 l	*BR00.45-Z-1010-06A
	Clean
16	Remove combustion and corrosion residues from separating points.
17	Install in the reverse order.
18	Check installation position and for unobstructed movement of exhaust system (3).	If complaints are present,
		
		Correct installation position of exhaust system (3).
 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
19	Perform engine test run and check exhaust system(3) for leak tightness.
20	Install center and rear lower engine compartment lining.	Engine 264 in model 213, 238	AR61.20-P-1105LWE
		Engine 264 in model 257	AR61.20-P-1105FR

 Sensors

Number	Designation		Engine 264
BA07.04-P-1003-02B	Union nut, line, differential pressure sensor, gasoline particulate filter	Nm	20

 Exhaust system

Number	Designation		Model 238 with engine 264
BA49.10-P-1002-02M	Bolt, exhaust system clamp to catalytic converter	Nm	22

 Exhaust system

Number	Designation		Model 213 with engine 264	Model 257 with engine 264
BA49.10-P-1002-02P	Clamp at catalytic converter and front exhaust system	Nm	25	25

 Exhaust system

Number	Designation		Model 238 with engine 264
BA49.10-P-1008-02M	Nut, decoupling element for front exhaust system to bracket	Nm	20

 Exhaust system

Number	Designation		Model 213 with engine 264	Model 257 with engine 264
BA49.10-P-1010-02P	Nut, decoupling element for front exhaust system to bracket	Nm	20	20

 Exhaust system

Number	Designation		Model 238 with engine 264
BA49.10-P-1016-02M	Screw, bracket of pressure line to gasoline particulate filter	Nm	5

 Exhaust system

Number	Designation		Model 213 with engine 264	Model 257 with engine 264
BA49.10-P-1017-02P	Screw, bracket of pressure line to gasoline particulate filter	Nm	5	5

 Frame floor assembly

Number	Designation		Model 213	Model 238
BA61.10-P-1004-01L	Bolt, rear reinforcement to frame floor assembly	Nm	24	24

 Frame floor assembly

Number	Designation		Model 257
BA61.10-P-1004-01L	Bolt, rear reinforcement to frame floor assembly	Nm	24

000 589 70 03 00

Box wrench bit

Repair materials

Number	Designation	Order number
BR00.45-Z-1005-06A	Paste, hot lubrication 1 kg, DBL 6879.20	A 000 989 76 51
BR00.45-Z-1010-06A	Lubricant, rubber assembly 1 l	A 000 989 03 67

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