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

Model 253 with engine 177, 274.9, 276.8, 642, 651.9 

Courtesy of MERCEDES-BENZ USA

Shown on fuel tank except code 494 (USA version) and except code 916 (Fuel tank with 66 l)) 

Shown: fuel tank with code U77 (BlueTEC (SCR) diesel exhaust treatment) and except code 916 (fuel tank with 66 l)) 

Courtesy of MERCEDES-BENZ USA

Shown on fuel tank except code 494 (USA version) and except code 916 (Fuel tank with 66 l)) 

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.	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 of the hazard area.	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
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Perform enable for the high voltage on-board electrical system	Model 253.354/954 with engine 274.9
			AR54.10-P-1150LVH
2	Disconnect ground line at battery		AR54.10-P-0003LW
3	Secure vehicle on vehicle lift		AR00.60-P-0100CW
4	Drain fuel tank (1)		AR47.10-P-4001RF
5	Release and disconnect electrical connectors on feed unit		AR47.20-P-5710RF
6	Remove rear lower engine compartment paneling		AR61.20-P-1105LW
		Only install rear lower engine compartment paneling after leak test.
7	Remove the left and right underfloor paneling		AR61.30-P-1001LW
		Only install left and right underfloor paneling after a leak test.
8	Remove reinforcement (5)	Bolt, rear reinforcement to frame floor assembly	*BA61.10-P-1004-01L
9.1	Remove center exhaust system	Model 253 with engine 177, 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
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 274.9, 276.8, 642, 651.9	AR49.10-P-4952RF
11	Remove propeller shaft		AR41.10-P-0050LWX
12	Remove rear axle		AR35.10-P-0010LWX
13	Remove tank filling depression		AR88.60-P-2000LW
14	Remove screw/bolt (8) and remove heat shield (20)	Screw/bolt, filler pipe to body	*BA47.10-P-1002-01P
15	Remove bolt (9)	Screw/bolt, filler neck bracket to body	*BA47.10-P-1003-01P
16	Unscrew nut and remove ground line (12)	Fuel tank filler neck ground point	*BA00.19-P-1027-01E
17	Clean fuel lines (6, 7) in the area of the connecting 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 1
20	Support power electronics (17) with high-voltage distributor and secure to prevent it 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/bolts (18, 19)	Model 253.354/954 with engine 274.9
		Bolt, bracket for power electronics to body	*BA08.20-P-1001-01I
		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 electrical 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, 274.9, 276.8
			AR47.30-P-8212LWA
		Record plug	Fig 1
24	Support fuel tank (1) and secure it 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	Remove screws/bolts (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
	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	Carry out an engine test run and check fuel system for leaktightness
32	Install left and right underfloor paneling		AR61.30-P-1001LW
33	Install rear lower engine compartment paneling		AR61.20-P-1105LW

Fig 1: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA