Retrofit Fully Electric Swiveling Trailer Hitch - AN31.10-P-0010LWN

Model 253.3 as of 6/1/20 

except code 36P (AMG Styling package) 

except code 460 (Canada version) 

except code 494 (US version) 

except code 554 (Preinstallation for trailer hitch) 

except code 737L (Mexico) 

except code 830 (China version) 

except code 835 (South Korea version) 

except code B26 (AMG Aerodynamics package) 

Model 253.9 (except 253.992/993) as of 6/1/20 

except code 36P (AMG Styling package) 

except code 460 (Canada version) 

except code 494 (US version) 

except code 554 (Preinstallation for trailer hitch) 

except code 737L (Mexico) 

except code 830 (China version) 

except code 835 (South Korea version) 

except code B26 (AMG Aerodynamics package) 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Shown with CODE P17 (KEYLESS-GO package) 

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
	Risk of injury  to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning  from swallowing coolant.	Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
	Risk of injury  . Moving parts can pinch, crush or, in extreme cases even sever extremities.	No parts of the body or limbs should be within the operating area of mechanical components when moving components.	AS00.00-Z-0009-01A
	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
	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	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	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on the use of paint scraping nuts on ground connections		AH00.19-P-1000-20A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on installing a trailer hitch		AH31.10-P-1000-02CW
Notice	Notes on retrofitting electrical/optical lines		AH82.00-P-0000-01A
	Notes on EU type approval requirements		AH31.10-P-1000-03T
	Notes on HANDS-FREE ACCESS		AH80.61-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove
1	Print out "Trailer hitch certificate" document.	For countries in Europe which do not belong to the EU. The "Trailer hitch certificate" document must be present at the installation acceptance. * only for Europe, ↓ Trailer hitch certificate
		Model 253.364/388/389/964/988/989	OF31.10-P-1000-01AA
		Model 253.311/313/315/316/319/323/353/380/911/913/914/915/916/919/923/953/980/981/984	OF31.10-P-1000-01U
2	Print out the detailed installation instructions and hand them over to the customer.	For do-it-yourself installation of trailer hitch by the customer.
3	Disconnect ground line from battery.
			AR54.10-P-0003LW
4	Discharge air conditioning system.	Model 253.3/9 with engine 654
			AR83.30-P-1760LW
5.1	Remove right side load compartment trim.	Model 253.3/9 except code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))
			AR68.30-P-1180LWG
5.2	Remove left and right side load compartment trim.	Model 253.3/9 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))
			AR68.30-P-1180LWG
6	Remove trim on right D-pillar.
			AR68.30-P-4495LWG
7	Loosen roof lining in rear area.
			AR68.30-P-4300LWS
8	Remove upper liftgate trim.
			AR72.20-P-6631LWG
9	Remove spare wheel well trim.
10	Remove rear bumper (70).
			AR88.20-P-2200LWG
11	Remove rear switch module lower sensor (A87/2) and rear switch module upper sensor from rear bumper (70).
		Model 253.3/9 with code P17 (KEYLESS-GO package)	AR80.61-P-0012LW
12	Unfasten rubber retainers on rear muffler.	Antifriction paste, rubber parts 2.5 kg, DBL 6867.00	*BR00.45-Z-1002-06A
13	Remove crossmember (6).	The crossmember (6) is no longer required.
14	In the XENTRY Portal Parts Information in DG 99, check if the cooler unit installed in accordance with the vehicle equipment can be used for the retrofitting of the trailer hitch.	If cooler unit is incompatible, ↓ remove the radiator unit.
		Model 253.3/9 with engine 654 The removed cooler unit is no longer required.	AR20.20-P-3865OLG
15	In the XENTRY Portal Parts Information in DG 99, check if the fan unit installed in accordance with the vehicle equipment can be used for retrofitting the trailer hitch.	If the fan unit is incompatible, ↓ remove fan unit.
		Model 253.3/9 with engine 264	AR20.40-P-5050MRP
		Model 253.3/9 with engine 654 The removed fan unit is no longer required.	AR20.40-P-5050OLG
16	In the XENTRY Portal Parts Information in DG 99, check if the rear engine compartment lining installed in accordance with the vehicle equipment can be used for retrofitting the trailer hitch.	If the rear engine compartment lining is incompatible ↓ Remove engine compartment lining at rear.
		The rear engine compartment lining is no longer required.	AR61.20-P-1105LW
17	Cut through radiator shutters wiring harness branch-off line at a distance of approx. 2 cm to the black 4-pin coupling.	Model 253.3/9 with code 2U1 (Radiator shutters)
18	Insulate line ends of radiator shutters wiring harness branch-off line with solder terminal sleeves and strap down.	Model 253.3/9 with code 2U1 (Radiator shutters)
		Note color coding of the lines. Differently colored lines must be insulated separately.	AR00.19-P-0100A
19	Remove battery.	Model 253.313/315/316/319/323/353/380/913/914/915/916/919/923/953/980/981/984 When replacing the fan unit wiring harness.
			AR54.10-P-0005LW
20	Remove windshield wiper system.	Model 253.313/315/316/319/323/353/380/913/914/915/916/919/923/953/980/981/984 When replacing the fan unit wiring harness.
			AR82.30-P-6400LW
21	In the XENTRY Portal Parts Information in DG 99, check if the engine cover installed in accordance with the vehicle equipment can be used for retrofitting the trailer hitch.	Model 253.3/9 with engine 264 If the engine cover is incompatible, ↓ remove engine cover.
		The removed engine cover is no longer required.	AR01.10-P-2405MRI
22	In the XENTRY Portal Parts Information in DG 99, check if the fuse and relay module installed in the rear passenger compartment in accordance with the vehicle equipment can be used for retrofitting the trailer hitch.	If rear passenger compartment fuse and relay module is incompatible, ↓ replace rear passenger compartment fuse and relay module.
		The removed fuse and relay module in the rear passenger compartment is no longer required.	AR54.15-P-0001LW
23	Remove front prefuse box.	Model 253.319/919
		The removed front prefuse box is no longer required.	AR54.15-P-1330LW
	Install
24	Retrofit trailer hitch control unit.		AN31.19-P-8080-05LWM
25	Retrofit mechanical detachable parts of fully electric swiveling trailer hitch.		AN31.11-P-0010-04LWM
		Model 253.3/9 with engine 654 with code U77 (BLUETEC (SCR) diesel exhaust gas aftertreatment) Bolt, AdBlue® tank to body	*BA14.40-P-1001-02E
		Bolt, trailer hitch to longitudinal member reinforcement (short)	*BA31.11-P-1001-01M
		Longitudinal member reinforcement for trailer hitch (short) to body	*BA31.11-P-1002-01M
		Bolt, longitudinal member reinforcement for trailer hitch (long) to body	*BA31.11-P-1003-01M
		Model 253.3/9 with engine 274, 276Bolt, rear exhaust system bracket to body	*BA49.10-P-1012-02A
		Model 253.3/9 with engine 177Screw/nut, holder for exhaust system at rear to body/crossmember	*BA49.10-P-1013-02E
		Model 253.3/9 with engine 654Bolt, bracket for suspension for rear exhaust system to body	*BA49.10-P-1014-02H
26	Retrofit wiring harness for fully electric swiveling trailer hitch.		AN31.19-P-0010-03LWN
		Right rear wheel well ground point	*BA00.19-P-1005-01E
		Wiring harness repair kit, basic	Fig 1
		New passenger car wiring harness repair kit	Fig 2
27	Retrofit switch for fully electric trailer hitch on trunk lid/liftgate.		AN31.19-P-0010-05LWG
28	Install new front prefuse box.	Model 253.319/919
			AR54.15-P-1330LW
29	replace wiring harness for fan unit.	If wiring harness for the fan unit is incompatible. Model 253.319/919	AN31.19-P-8100-07LWM
		Model 253.313/315/316/353/913/915/916/953	AN31.19-P-8100-07LWL
		Left front ground point	*BA00.19-P-1003-01E
		Nut, positive line to engine compartment prefuse box	*BA54.15-P-1003-01K
		Wiring harness repair kit, basic	Fig 1
		New passenger car wiring harness repair kit	Fig 2
30	Retrofit front cylinder head heat shield.	Model 253.3/9 with engine 264	AN31.11-P-8080-14LWM
		Screw, ignition system heat shield to cylinder head	*BA09.40-P-1014-02C
31	Retrofit engine cover.	Model 253.3/9 with engine 264 If the engine cover is incompatible.
			AR01.10-P-2405MRI
32	Install rear engine compartment lining.	If the rear engine compartment lining is incompatible.	AN31.11-P-8080-11LWG
33	Add bumper cutout.	Model 253.3 except code 772 (AMG styling - front spoiler, longitudinal members)	AN31.11-P-8080-02LWH
		Model 253.9 except code 772 (AMG styling - front spoiler, longitudinal members)	AN31.11-P-8080-02LWG
34	Modify lower bumper section.	Model 253.3/9 with code 772 (AMG styling - front spoiler, longitudinal members)
35	Install rear switch module upper sensor on rear bumper (70).	Model 253.3/9 with code P17 (KEYLESS-GO package)
			AR80.61-P-0012LW
36	Install rear bumper (70).
			AR88.20-P-2200LWG
37	Mount reinforcement (70.3) onto rear bumper (70) and fix in place using expansion rivet (70.4) and screws (70.5).
38	Install rear switch module lower sensor (A87/2) on rear bumper (70).	Model 253.3 with code P17 (KEYLESS-GO Package)
			AR80.61-P-0012LW
39	Install remaining parts.	Connect tailgate trailer hitch release switch.
	Update Vehicle Documentation (VeDoc)
40	Deregister special equipment in vehicle data card online.	Model 253.3/9 with code 2U1 (Radiator shutters) Code 2U1 (Radiator shutters)
41	Enter special equipment into online vehicle data card.	Code 550 (Trailer hitch)
42	Attach "Trailer hitch retrofitted as per AN31.10-P-0010LWN" note under field organization texts to DG 07, DG 31, DG 41, DG 50, DG 52, DG 54 and DG 88.
43	Connect diagnostic system and select vehicle using vehicle identification number (VIN).
			AD00.00-P-2000-04B
44	Perform variant coding using the software calibration number (SCN).	The coding sequence must be observed at all times. Central gateway in electronic ignition lock control unit  Instrument cluster  Head unit  Front SAM control unit  Rear SAM control unit  Trailer recognition control unit  ESP® control unit  Model 253.3/9 with code P44 (Parking Package), model 253.3/9 with code P47 (Parking Pilot with 360° camera) 360° camera control unit  Model 253.3/9 with code 889 (KEYLESS-GO) KEYLESS-GO control unit  Model 253.3/9 with code 2U1 (Radiator shutters) Engine control unit
45	Disconnect diagnostic system.
			AD00.00-P-2000-04B
	Check
46	Perform function test of ball neck and light signals on trailer hitch socket.		AN31.10-P-0008-01LWG

Fig 1: Identifying Wiring Harness Repair Kit, Basic (000 589 13 99 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying New Passenger Car Wiring Harness Repair Kit (220 589 04 99 00)

Courtesy of MERCEDES-BENZ USA