Remove/install exhaust system · ar4910p7142mnd · Mercedes-Benz WIS

AR49.10-P-7142MND

Remove/install exhaust system

11.12.2018

Engine	276.8 in model 213, 238
	except code 598 (Gasoline particulate filter (OPF) with sensor system)

P49.10-3194-09

Shown on model 213 with engine 276.853

30	Exhaust system	35	Elastomer bearing
33	Electrical connector	39	Elastomer bearing
34	Elastomer bearing

Shown on model 213 with engine 276.823

1	Left catalytic converter
2	Right catalytic converter
3	Clamps

P49.10-3195-06

Shown on model 238.4

72	Cross strut
73	Diagonal struts

P61.10-2304-06

 Danger	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
 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	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
	Remove
1	Release and disconnect electrical connection (33)	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR49.10-P-4824MND
2	Remove the left and right underfloor paneling		AR61.30-P-1001LWE
3	Remove control unit of the left NOx sensor and expose electrical line	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0003MND
4	Remove control unit of the right NOx sensor and expose electrical line	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0002MND
5	Remove NOx sensor control unit downstream of NOx storage catalytic converter and expose electrical line	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0004MND
6	Release and disconnect electrical connection of left temperature sensor and expose electrical line	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0006MND
7	Release and disconnect electrical connection of right temperature sensor and expose electrical line	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0008MND
8	Unscrew screws/bolts of cross strut (72) at frame floor, and remove cross strut (72)
9	Unscrew screws/bolts of rear diagonal struts (73) at spare wheel well and longitudinal member, and remove diagonal struts (73)	Engine 276.8 in model 213.2, 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system)
		Engine 276.8 in model 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system)	AR61.10-P-5142LWP
10	Support exhaust system (30) and secure against falling down
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
11	Remove elastomer bearing (34, 35) for exhaust system (30)
12	Unscrew nuts of the elastomer bearing (39) at holders for the exhaust system (30)
13	Release screws/bolts of both clamps (3), and remove clamps (3)
14	Lower exhaust system (30) and remove downwards
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
		 Aid of helper required.
15	Check elastomer bearings (34, 35, 39)	If wear or damage present
		
		Replace elastomer bearings (34, 35, 39).
16	Remove combustion and corrosion residues at the connections
	Install
17	Position exhaust system (30) and support it
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
		 Aid of helper required.
18	Attach elastomer bearings (34, 35) to the exhaust system (30)
19	Tighten down nuts on the elastomer bearing (39) at holders for the exhaust system (30)	 Engine 276.8 in model 238 except code 598 (Gasoline particulate filter (OPF) with sensor system)Nut, decoupling element for front exhaust system to bracket	*BA49.10-P-1009-02I
		 Engine 276.8 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)Nut, decoupling element for front exhaust system to bracket	*BA49.10-P-1009-02G
20	Position new sealing rings on the left and right CAT (1, 2)
21	Position both new clamps (3) on the left and right CAT (1, 2) and tighten slightly by hand
22	Check installation position and unobstructed movement of exhaust system (30) and correct if necessary
23	Tighten screw/bolts for clamps (3)	 Engine 276.8 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)Clamp at catalytic converter and front exhaust system	*BA49.10-P-1002-02G
		 Engine 276.8 in model 238 except code 598 (Gasoline particulate filter (OPF) with sensor system)Clamp to catalytic converter and front exhaust system	*BA49.10-P-1002-02I
24	Remove support for exhaust system (30)
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
25	Position cross strut (72) on frame floor, and tighten screws/bolts	 Bolt, rear reinforcement to frame floor assembly	*BA61.10-P-1004-01L
26	Position diagonal struts (73), tighten screws/bolts of diagonal struts (73) at spare wheel well and longitudinal member	Engine 276.8 in model 213.2, 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system)
		Engine 276.8 in model 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system)	AR61.10-P-5142LWP
		 Engine 276.8 in model 213.2 except code 598 (Gasoline particulate filter (OPF) with sensor system)Bolt, rear diagonal strut to spare wheel well/body	*BA61.10-P-1008-01L
27	Install left NOx sensor control unit	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0003MND
28	Install right NOx sensor control unit	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0002MND
29	Install NOx sensor control unit downstream of NOx storage catalytic converter	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0004MND
30	Connect electrical connection of left temperature sensor, lock, and clip in electrical line	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0006MND
31	Connect electrical connection of right temperature sensor, lock, and clip in electrical line	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR14.40-P-0008MND
32	Install left and right underfloor paneling		AR61.30-P-1001LWE
33	Plug in electrical connection (33) together and lock	Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system)
			AR49.10-P-4824MND
 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
34	Perform an engine test run and check exhaust system (30) for leaktightness

 Exhaust system

Number	Designation		Model 213 with engine 276
BA49.10-P-1002-02G	Clamp at catalytic converter and front exhaust system	Nm	19

 Exhaust system

Number	Designation		Model 238 with engine 276
BA49.10-P-1002-02I	Clamp to catalytic converter and front exhaust system	Nm	19

 Exhaust system

Number	Designation		Model 213 with engine 276
BA49.10-P-1009-02G	Nut, decoupling element for front exhaust system to bracket	Nm	20

 Exhaust system

Number	Designation		Model 238 with engine 276
BA49.10-P-1009-02I	Nut, decoupling element for front exhaust system to bracket	Nm	20

 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 213
BA61.10-P-1008-01L	Bolt, rear diagonal strut to spare wheel well/body	Nm	50

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