Remove/Install Fuel Pump Control Unit - AR47.20-P-5717MNB

Model 190.3 With Engine 178 

Courtesy of MERCEDES-BENZ USA

	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
	Remove/install
1	Connect diagnostic system and read out variant coding for FSCU (6)
			AD00.00-P-2000-04B
		Transfer stored data to new FSCU (6).
2	Switch off ignition and store transmitter key outside of transmission range (min. 2 m)
3	Remove trunk partition		AR68.50-P-3000RG
4	Remove rear panel trim (4) at cover (1) and place to one side		AR68.30-P-4750RG
5	Remove connecting member for B-pillar (3) and place to one side
6	Remove screws/bolts (2) and remove cover (1)	M6x1	*BA00.10-P-1002-04A
7	Release and disconnect electrical connections (5)
8	Unscrew nuts (7) and remove FSCU (6) upwards	Nut, fuel system control unit to fuel tank	*BA47.10-P-1003-01N
9	Install in the reverse order
10	Attach diagnostic system and activate the FSCU (6)
			AD00.00-P-2000-04B
		The FSCU (6) must be activated. Malfunctions will otherwise occur.
	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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
11	Perform an Engine test run and check Engine for proper function

METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number	Designation		8.8	10.9
BA00.10-P-1002-04A	M6x1	Nm	9	13

FUEL TANK

Number	Designation		Model 190
BA47.10-P-1003-01N	Nut, fuel system control unit to fuel tank	Nm	3, 5