Remove/Install Fuel Tank - AR47.10-P-4100RF

Model 253 with Engine 177, 264, 274.9, 276.8, 642, 651.9, 654.9, 656 

Courtesy of MERCEDES-BENZ USA

Shown on fuel tank without code 494 (USA version) and without code 916 (Fuel tank with 66 L)) 

Shown: fuel tank with code U77 (BlueTEC (SCR) diesel exhaust gas cleaning) and without code 916 (fuel tank with 66 L)) 

Courtesy of MERCEDES-BENZ USA

Shown on fuel tank without code 494 (USA version) and without code 916 (Fuel tank with 66 L)) 

Fig 1: Fuel Tank Components Location - Model 253 With Engine 264, 274.9 (Shown Without Code 494; Without Code 916)

Courtesy of MERCEDES-BENZ USA

Shown on Model 253.954 with Engine 274.9 

Courtesy of MERCEDES-BENZ USA

	Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. Model 253.311/911 with Engine 654.9 Model 253.353/354/953/954 with Engine 274.9	AS00.00-Z-0035-01A
	Risk of explosion  caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel.	No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel.	AS47.00-Z-0001-01A
	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 o' the danger zone.	AS49.00-Z-0001-01A
	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
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment	Model 253.311/911 with Engine 654.9 Model 253.353/354/953/954 with Engine 274.9	AH00.00-Z-0300-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Perform power disconnect of high-voltage onboard electrical system.	Model 253.311/911 with Engine 654.9 Model 253.353/354/953/954 with Engine 274.9	AR54.10-P-1150LVH
2	Disconnect ground line of on-board electrical system battery (G1).		AR54.10-P-0003LW
3	Secure vehicle on vehicle lift.		AR00.60-P-0100CW
4	Empty fuel tank (1).		AR47.10-P-4001RF
5	Release and disconnect electrical connectors on feed unit.		AR47.20-P-5710RF
6	Remove rear bottom Engine compartment lining.	Only install rear lower Engine compartment lining after leak test.	AR61.20-P-1105LW
7	Remove left and right underfloor paneling.	Only install left and right underfloor paneling after a leak test.	AR61.30-P-1001LW
8	Remove stiffener (5).	Bolt, rear reinforcement to frame floor assembly	*BA61.10-P-1004-01L
9.1	Remove center exhaust system.	Model 253 with Engine 177, 264, 274.9, 276.8
		Model 253 with Engine 177	AR49.10-P-7283MNG
		Model 253 with Engine 276.8	AR49.10-P-7283MMV
		Model 253 with Engine 274.9	AR49.10-P-7283RF
		Model 253 with Engine 264	AR49.10-P-7283MRI
9.2	Remove SCR catalytic converter.	Model 253 with Engine 642, 651.9 Model 253 with Engine 642 with code U77 (Diesel Emission control BLUETEC (SCR))	AR14.40-P-2006OGW
		Model 253 with Engine 651.9 with code U77 (Diesel Emission control BLUETEC (SCR))	AR14.40-P-2006LWB
10	Remove rear muffler.	Model 253 with Engine 177	AR49.10-P-4952MNG
		Model 253 with Engine 264, 274.9, 276.8, 642, 651.9, 654.9, 656	AR49.10-P-4952RF
11	Remove propeller shaft.		AR41.10-P-0050LWX
12	Remove rear axle.		AR35.10-P-0010LWX
13	Remove tank filler recess.		AR88.60-P-2000LW
14	Unscrew screw (8) and remove heat shield (20).	Screw/bolt, filler pipe to body	*BA47.10-P-1002-01P
15	Remove screw (9).	Screw/bolt, filler neck bracket to body	*BA47.10-P-1003-01P
16	Remove nut and take off ground line (12).	Fuel tank filler neck ground point	*BA00.19-P-1027-01E
17	Clean fuel lines (6, 7) near the separating points on the right side of the frame floor assembly.	Assembly cleaner	*BR00.45-Z-1028-04A
18	Release and disconnect fuel lines (6, 7) and catch escaping fuel in a suitable container.
19	Seal openings on fuel lines (6, 7) with suitable stop plugs.	Record plug	Fig 2
20	Support power electronics (17) with high-voltage distributor and secure to prevent from falling down.	Model 253.354/954 with Engine 274.9
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
21	Remove screws (18, 19).	Model 253.354/954 with Engine 274.9
		Bolt, bracket for power electronics to body	*BA08.20-P-1001-011
		High-voltage distributor to body	*BA54.10-P-1004-03E
22	Lower power electronics (17) with high-voltage distributor.	Model 253.354/954 with Engine 274.9
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
		Do not put electric lines under tension. Otherwise the high-voltage on-board electrical system may be damaged.
23	Remove hoses from activated charcoal canister and seal openings with suitable stop plugs.	Model 253 with Engine 177, 264, 274.9, 276.8	AR47.30-P-8212LWA
		Record plug	Fig 2
24	Support fuel tank (1) and secure to prevent it from falling down.
	000 588 10 62 00 Support plate		WS26.00-P-3309B
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
25	Unclip cap from heat shield (2).
26	Unscrew screws (1a) and remove tensioning straps (1c).	Screw/bolt, fuel tank/tensioning strap to vehicle floor	*BA47.10-P-1001-01P
27	Carefully lower fuel tank (1).	Aid of helper required.
28	Remove right fill level sensor.	When replacing the fuel tank (1).	AR47.50-P-0110RF
29	Remove heat shield (2).	When replacing the fuel tank (1).
30	Install in the reverse order.
	Check
	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
31	Perform Engine test run and check leak tightness of fuel system.
32	Install left and right underfloor paneling.		AR61.30-P-1001LW
33	Install rear lower Engine compartment lining.		AR61.20-P-1105LW

Fig 2: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA