Remove/Install Gasoline Particular Differential Pressure Sensor - AR07.04-P-0025RFM

Engine 274 in model 253 

with code 598 (Gasoline particulate filter (OPF) with sensor system) 

Courtesy of MERCEDES-BENZ USA

Shown on engine 274 in model 253.353 

Shown on engine 274 in model 253.353 

Fig 1: Gasoline Particular Differential Pressure Sensor Components Location - Engine 274 In Model 253 With Code 598 (Shown In Model 253.353)

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 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 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	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
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		AH00.00-Z-0300-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
	Remove/install
1	Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).
2	Remove center exhaust system.		AR49.10-P-7283RF
3	Unclip temperature sensor upstream of gasoline particulate filter (B163/4) from retaining clip (1).
4	Disconnect electrical connection (2).
5	Unscrew nuts (3).	Engine 274 in model 253.353/953 with code 598 (Gasoline particulate filter (OPF) with sensor system)
6	Unclip retaining lug (4) and press cable duct (5) to one side.	Engine 274 in model 253.353/953 with code 598 (Gasoline particulate filter (OPF) with sensor system)
7	Unscrew nuts (6) at heat shield (7).
8	Remove heat shield (7) with gasoline particulate filter differential pressure sensor (B163/3) downward.
9	Disconnect electrical connector (8).
10	Unscrew nuts (9).	Nut, differential pressure sensor to bracket	*BA49.10-P-1017-02A
11	Remove click clamps (10) at pressure hoses and remove gasoline particulate filter differential pressure sensor (B163/3).	Install new click clamps (10). Position click clamps (10) in original installation position. Pliers for click clamps	Fig 2
12	Install in the reverse order.
13	Read out and delete fault memory.
			AD00.00-P-2000-04B
	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
14	Perform engine test run and check exhaust system in terms of leak tightness.

Fig 2: Identifying Pliers For Click Clamps (171 589 00 37 00)

Courtesy of MERCEDES-BENZ USA