Remove/install fuel tank · ar4710p4100w · Mercedes-Benz WIS

AR47.10-P-4100W

Remove/install fuel tank

22.01.2019

Model

172 with engine 152, 271.8, 274, 276, 651

Shown on model 172 except code 494 (USA version)

1	Fuel tank
13	Electrical line
15	Fuel filter
B4/7	Fuel pressure sensor
N118	Fuel pump control unit

P47.10-2581-11

Shown on model 172 with code 494 (USA version)

1	Fuel tank
12	Vent line
B4/3	Fuel tank pressure sensor
B4/7	Fuel pressure sensor
N118	Fuel pump control unit

P47.10-2589-11

1c	Filler neck
23	Pins
25	Constriction

P47.10-2575-06

14	Boot
20	Fuel hose
21	Vent hose
26	Nut
27	Heat shield

P47.10-2844-06

 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 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
 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
 Danger	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 contactwith 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
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
Topical note	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
 	Remove/install
1	Close Vario roof.
2	Empty the fuel tank (1).	Model 172 with engine 152, 271.8, 274, 276 except code 494 (US version) except code 945 (China Stage 6 exhaust treatment) Model 172 with engine 651	AR47.10-P-4001W
		Model 172 with engine 152, 271.8, 274, 276 with code 494 (US version) Model 172 with engine 274 with code 945 (China Stage 6 exhaust treatment)	AR47.10-P-4001WA
3	Detach rear SAM control unit with fuse and relay module (N10/2) in the trunk and place to one side.		AR54.21-P-1258W
4	Remove tank cover.		AR64.20-P-1080W
5	Turn up insulation mat on fuel tank (1) upwards.
6	Release and disconnect electrical connectors on fuel filter (15).	Model 172 with engine 152, 271.8, 274, 276
7	Release and disconnect electrical connector on fuel pressure sensor (B4/7).	Model 172 with engine 651
8	Release and disconnect electrical connector on fuel tank pressure sensor (B4/3).	Model 172 with engine 152, 271.8, 274, 276 with code 494 (US version) Model 172 with engine 274 with code 945 (China Stage 6 exhaust treatment)
9	Remove fuel pump control unit (N118) from fuel tank (1) and place to one side with attached lines.	 Nut, fuel system control unit bracket to fuel tank	*BA47.10-P-1012-01B
10	Remove electrical line (13) from fuel tank (1).	 Installation: Replace the fabric tape on the electric line (13) and apply it again at the previously installed location.
11	Remove right trunk trim.		AR68.30-P-4600W
12	Place electrical line (13) with fuel pump control unit (N118) to one side.
13	Raise vehicle.		AR00.60-P-1000V
14	Unbolt nuts (26) and remove heat shield (27).
15	Remove fuel pressure via the service connection.	Model 172 with engine 152, 271.8, 276 except code 494 (US version) Model 172 with engine 274 except code 494 (US version) except code 945 (China Stage 6 exhaust treatment)
		Model 172 with engine 274 except code 494 (US version) except code 945 (China Stage 6 exhaust treatment)	AR07.03-P-1460-01MR
		Model 172 with engine 271.8 except code 494 (US version)	AR07.03-P-1460-01EVO
		Model 172 with engine 276 except code 494 (US version)	AR07.03-P-1460-01VA
		 Model 172 with engine 274 except code 494 (US version) except code 945 (China Stage 6 exhaust treatment)Dust cap at service connection	*BA07.03-P-1003-01F
		 Model 172 with engine 276 except code 494 (US version)Cap on service connection	*BA07.03-P-1007-01D
		 Model 172 with engine 152 except code 494 (US version)Cap on service connection	*BA07.03-P-1007-01E
		 Pressure hose	*119589046300
16	Remove the vent hose (21) from the fuel tank (1).
17	Remove the vent line (12) from the fuel tank (1).	Model 172 with engine 152, 271.8, 274, 276 with code 494 (US version) Model 172 with engine 274 with code 945 (China Stage 6 exhaust treatment) Model 172 with engine 651
18	Remove fuel hose (20) from fuel tank (1) and seal openings with suitable stop plugs.	 Catch fuel running out with suitable vessel.
		 Installation: Replace clamp.
		 Pliers for click clamps	*171589003700
		 Record plug	*129589009100
19	Unfasten boot (14) from frame floor assembly and push inwards.
20	Lower vehicle.		AR00.60-P-1000V
21	Remove tank filler recess.		AR88.60-P-2000W
22	Unscrew nuts from fuel tank (1).	 Nut, fuel tank to vehicle	*BA47.10-P-1008-01B
23	Take out fuel tank (1).	 Ensure that the fuel tank (1) does not contact lines or hoses lying in the vicinity. Otherwise damage will occur.
24	Pull out pins (23) and remove constriction (25) for filler neck (1c).	Model 172 with engine 152, 271.8, 274, 276 When replacing the fuel tank (1).
		 Puller	*123589053300
25	Dispose of fuel tank (1).	When replacing the fuel tank (1).
26	Install in the reverse order.
	Check
 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
 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
27	Perform engine test run; in this connection, check fuel system for leak tightness.

 Injection nozzles, injection valves, lines

Number	Designation			Engine 274
BA07.03-P-1003-01F	Dust cap at service connection	Plastic	Nm	2
		Metal	Nm	15

 Injection nozzles, injection valves, lines

Number	Designation			Engine 276
BA07.03-P-1007-01D	Cap on service connection	Plastic	Nm	2
		Metal	Nm	15

 Injection nozzles, injection valves, lines

Number	Designation			Engine 152
BA07.03-P-1007-01E	Cap on service connection	Plastic	Nm	2
		Metal	Nm	15

 Fuel tank

Number	Designation		Model 172
BA47.10-P-1008-01B	Nut, fuel tank to vehicle	Nm	21

 Fuel tank

Number	Designation		Model 172
BA47.10-P-1012-01B	Nut, fuel system control unit bracket to fuel tank	Nm	2

129 589 00 91 00

Record plug

171 589 00 37 00

Pliers for click clamps

123 589 05 33 00

Puller

119 589 04 63 00

Pressure hose

Referenced documents

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
ar0060p1000v Lift/jack up vehicle
ar0703p146001evo Reduce fuel pressure through service valve
ar0703p146001mr Reduce fuel pressure through service valve
ar0703p146001va Reduce fuel pressure through service valve
ar4710p4001w Empty/fill fuel tank
ar4710p4001wa Empty/fill fuel tank
ar5421p1258w Remove/install SAM control unit with fuse and relay box in trunk
ar6420p1080w Remove/install upper tank cover
ar6830p4600w Remove paneling in trunk
ar8860p2000w Remove/install tank recess
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.
as0000z001001a Risk of death caused by vehicle slipping or toppling off of the lifting platform.
as0000z001701a Risk of injury caused by scraping or cutting body parts on sharp vehicle parts
as4700z000101a 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 contactwith fuel.
as4900z000101a 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.