Retrofit Digital Tachograph (DTCO) - AN54.61-S-2000E

Model 447.6 

With Code FF2 (Centre console with 1-DIN aperture) 

With Code JV6 (Tachograph pre-installation kit) 

Except Code FF1 (Centre console with stowage compartment) 

Except Code ME0 (Electric motor 85 kW) 

Except Code S23 (Co-driver's seat double seat) 

Except Code XM0 (Facelift) 

Model 447.7 

With Code FF2 (Centre console with 1-DIN aperture) 

With Code JV6 (Tachograph pre-installation kit) 

Except Code FF1 (Centre console with stowage compartment) 

Except Code HZ1 (Auxiliary heater (warm air)) 

Except Code ME0 (Electric motor 85 kW) 

Except Code ME4 (Electric motor 145 kW) 

Except Code S23 (Co-driver's seat double seat) 

Except Code XM0 (Facelift) 

Model 447.8 

With Code FF2 (Centre console with 1-DIN aperture) 

With Code JV6 (Tachograph pre-installation kit) 

Except Code FF1 (Centre console with stowage compartment) 

Except Code FG0 (Deluxe center console with roller shutter door) 

Except Code HZ1 (Auxiliary heater (warm air)) 

Except Code ME4 (Electric motor 145 kW) 

Except Code XM0 (Facelift) 

25.11.2020	Code designation note changed	Operation steps 7.2, 8, 12
25.11.2020	Ordering note for AGM battery 12 V 92 Ah changed	Parts ordering note

Courtesy of MERCEDES-BENZ USA

Shown on model 447.8 

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
1.1	Disconnect ground line of on-board electrical system battery (G1).	Model 447.6/7 with code ED4 (AGM battery 12 V 92 Ah) Model 447.6/7 with code EE8 (Battery 12V 100 Ah) Model 447.8
			AR54.10-S-0003E
1.2	Remove on-board electrical system battery (G1).	Model 447.6/7 except code ED4 (AGM battery 12 V 92 Ah) except code EE8 (Battery 12V 100 Ah)
		The on-board electrical system battery (G1) installed as standard must be replaced by a higher-performance one, and it can be disposed of after removal.	AR54.10-S-0005E
2	Remove cover (2) from center console (3).	Carefully unclip cover (2). Otherwise the center console (3) could be damaged.
		Long wedge	Fig 1
	Install
3	Attach stop plug (1) at digital tachograph (DTCO) control unit (A56)
4	Mount installation frame (5) into center console (3).	Make sure that the installation frame (5) is seated correctly. Otherwise the digital tachograph (DTCO) control unit (A56) cannot be installed in a theft-proof manner.
		To do so, push the tabs (4) outwards by approx. 90° in the direction of the arrow (a) using a suitable tool.
5	Plug electrical connectors (6) into digital tachograph (DTCO) control unit (A56).
6	Install digital tachograph (DTCO) control unit (A56) in installation frame (5)	The digital tachograph (DTCO) control unit (A56) must lock in the installation frame (5).
7.1	Attach ground line of the on-board electrical system battery (G1).	Model 447.6/7 with code ED4 (AGM battery 12 V 92 Ah) Model 447.6/7 with code EE8 (Battery 12V 100 Ah) Model 447.8
			AR54.10-S-0003E
7.2	Install new on-board electrical system battery (G1).	Model 447.6/7 except code ED4 (AGM battery 12 V 92 Ah) except code EE8 (Battery 12V 100 Ah)
		Model 447.6/7 with code ED1 (Absorbent glass mat battery 12 V 70 Ah) Use on-board electrical system battery (G1) accordingly for code ED4 (AGM battery 12 V 92 Ah) Model 447.6/7 with on-board electrical system battery (G1) (battery 12 V 74 Ah) installed as standard Use on-board electrical system battery (G1) accordingly for code EE8 (Battery 12 V 100 Ah).	AR54.10-S-0005E
8	Enter special equipment via Vehicle Documentation System (VeDoc).	Designation of corresponding special equipment: Code JD1 (Tachograph with digital technology). The existing code JV6 (Tachograph preinstallation) must be removed Model 447.6/7 with code ED1 (Absorbent glass mat battery 12 V 70 Ah) Designation of affected special equipment: Code ED4 (AGM battery 12 V 92 Ah). The existing code ED1 (Absorbent glass mat battery 12 V 70 Ah) must be removed Model 447.6/7 with on-board electrical system battery (G1) (battery 12 V 74 Ah) installed as standard
		Designation of affected special equipment: Code EE8 (Battery 12 V 100 Ah).
9	Connect vehicle diagnosis system; read out fault memory.
			AD00.00-S-2000-04E
10	Perform SCN coding on electronic ignition lock (EIS) control unit (N73).
		Under the "Control unit adaptations" menu item follow the instructions for "SCN coding".	AR54.21-S-0015E
11	Perform SCN coding of instrument cluster (IC) control unit (A1/1).
		Under the "Control unit adaptations" menu item follow the instructions for "SCN coding".	AR54.21-S-0015E
12	Perform SCN coding on signal acquisition and actuation module (SAM) control unit (N10/1).	Only when on-board electrical system battery (G1) was retrofitted accordingly for code ED4 (AGM battery 12 V 92 Ah) or code EE8 (Battery 12 V 100 Ah).
		Under the "Control unit adaptations" menu item follow the instructions for "SCN coding".	AR54.21-S-0015E
13	Have initial calibration performed by authorized personnel.	When doing so, observe the operator's manual supplied with the digital tachograph (DTCO) control unit (A56).
14	Disconnect diagnostic system from vehicle.
	Check
15	Perform check in accordance with respective national regulations.	In Germany, the check must be performed in accordance with 57b StVZO (Straβenverkehrs-Zulassungs-Ordnung - German Regulations Authorizing the Use of Vehicles for Road Traffic).

Part no.	Designation	Quantity
KG 99 (see EPC)	Tachograph control unit	1
KG 99 (see EPC)	Stop plug	1
KG 99 (see EPC)	Installation frame	1
KG 99 (see EPC)	AGM battery 12 V 92 Ah	n.B.
KG 99 (see EPC)	Battery 12 V 100 Ah	n.B.