Remove/Install Tachograph Sensor - AR54.61-S-5505E

Model 447 

With Code J4V (Pre-installation of EU intelligent tachograph) 

Model 447 

With Code JD1 (Digital tachograph) 

Model 447 

With Code JD4 (Tachograph, digital EC, download-capable) 

Model 447 

With Code JD6 (Intelligent tachograph, EU) 

Model 447 

With Code JV6 (Tachograph pre-installation kit) 

Courtesy of MERCEDES-BENZ USA

Fig 1: Tachograph/Vehicle Speed Sensor Components Location - Model 447 With Code J4V, JD1, JD4, JD6, JV6

Courtesy of MERCEDES-BENZ USA

	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
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on carrying out repair work in the vehicle interior		AH68.00-D-0001-01KOS
	Remove
1	Release front right floor covering.	Release floor covering far enough to gain access to covers (2, 3).	AR68.30-S-0003E
2	Disconnect electrical connector (1).
3	Remove cover (2).
4	Remove cover (3).
5	Remove grommet (4).
6	Cut through cable ties (5).
7	Route electric line (6) outward and away from vehicle floor.
8	Remove lower engine compartment lining.		AR61.20-S-1105E
9	Unscrew screw (8) and remove speed Hall sensor (B6) from transmission.
10	Remove electric line (6) from underbody and transmission.
11	Remove insulation at electrical wiring harness and remove speed Hall sensor (B6) together with electric line (6).
	Install
12	Position speed Hall sensor (B6) at transmission and screw in screw (8).	Screw, tachograph rotational speed sensor to transmission housing	*BA54.61-Z-1001-01KTS
13	Attach electric line (6) at underbody and at transmission.
14	Install grommet (4).
15	Insulate electric line (6) at subharness along underbody.
16	Install lower engine compartment lining.		AR61.20-S-1105E
17	Route electric line (6) into vehicle interior.
18	Install new cable ties (5).
19	Install cover (3).
20	Install cover (2).
21	Connect electrical connector (1).
22	Fix front right floor covering in place.		AR68.30-S-0003E
	Check
23	Perform tachograph inspection.	If speed Hall sensor (B6) was replaced. Observe legal requirements for tachograph inspection. In the Federal Republic of Germany test the tachograph as per 57b of StVZO [German vehicle licensing regulations].
24	Enter new serial number of anti-tamper seal of speed Hall sensor (B6) in Vehicle Documentation (VeDoc).	Model 447 with code JD6 (Intelligent tachograph, EU)