Retrofit mechanical swing-away trailer hitch - AN31.10-P-0001ES

MODEL 212.2## (except 212.248/274/275/276/277/292/298) 1# without CODE 460 (Canada version) without CODE 494 (US version) without CODE 498 (Japanese version) without CODE 770 (AMG 7 double-spoke design) without CODE 871 (Sensor system for trunk lid opening/closing) without CODE R17 (48.3 cm (19-inch) 5-twin-spoke light-alloy wheels) 

MODEL 212.248 1# without CODE 411 (6-speed manual transmission) without CODE 460 (Canada version) without CODE 494 (US version) without CODE 498 (Japanese version) without CODE 770 (AMG 7 double-spoke design) without CODE 871 (Sensor system for trunk lid opening/closing) without CODE R17 (48.3 cm (19-inch) 5-twin-spoke light-alloy wheels) 

Fig 1: Mechanical Swing-Away Trailer Hitch Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Mechanical Swing-Away Trailer Hitch Components (2 Of 2)

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
	Notes on installing a trailer hitch		AH31.10-P-1000-02CW
	Notes on EU type approval requirements		AH31.10-P-1000-03T
	Remove
1	Print out the document "Trailer hitch, certificate"	Valid only for EU member countries.
	Trailer hitch certificate		OF31.10-P-1000-01DS
		Print out the document "Trailer hitch, certificate" and submit for the installation acceptance. For do-it-yourself installation, print out the detailed assembly instructions and give to the customer.
2	Remove trim in cargo area
			AR68.30-P-1180ES
		Check in the EPC whether the trim installed in the cargo area in accordance with the vehicle equipment has to be replaced.
3	Remove rear SAM control module with fuse and relay module
			AR54.21-P-1258EW
		Check in the EPC if the rear SAM control unit with fuse and relay module installed in accordance with the vehicle equipment can be used for the retrofitting of the trailer hitch (AHV). If necessary, the rear SAM control unit with fuse and relay module may have to be removed and replaced with a SAM control unit with fuse and relay module compatible with the trailer hitch. If the rear SAM control unit with fuse and relay module does not need to be replaced, just detach it and put aside.
4	Remove rear bumper
			AR88.20-P-2200EW
5	Remove heat shield	Left on a single-pipe exhaust system. Left and right on a twin-pipe exhaust system.
6	Remove exhaust rubber bushings from rear muffler	Left on a single-pipe exhaust system. Left and right on a twin-pipe exhaust system.
7	Remove crossmember (6)	The crossmember (6) is no longer required.
8	Check electric fan for compatibility; replace if necessary	Check in the EPC whether the electric fan fitted in accordance with the vehicle equipment can be used for retrofitting the trailer hitch. If necessary, remove the electric fan and replace it with an electric fan that is compatible with the trailer hitch.
	Install
9	Retrofit mechanical detachable parts		AN31.11-P-8080-05ES
		Bolt, trailer hitch to longitudinal member reinforcement	*BA31.11-P-1001-01J
		Nut, trailer hitch to rear center panel	*BA31.11-P-1002-01J
		Bolt, longitudinal member reinforcement to frame side member	*BA31.11-P-1003-01J
10	Retrofit trailer hitch control unit		AN31.19-P-8080-05ES
11	Retrofit trailer hitch wiring harness		AN31.19-P-8100-05ES
		Ensure that the wiring harnesses are not damaged by pinching or crushing. Otherwise the corresponding wiring harness must be replaced.
		Wiring harness repair kit, basic	Fig 4
		New passenger car wiring harness repair kit	Fig 3
12	Retrofit release lever		AN31.11-P-8080-06ES
	Risk of explosion  caused by paint vapors igniting. Risk of poisoning  caused by inhaling paint vapors.	No smoking! No open fire! Use respiratory protection, protective clothing, gloves, safety glasses and skin cream. Ensure that the area is well ventilated.	AS98.00-Z-0002-01A
13	Paint bumper on rear lower section	With CODE 950 (AMG sport package) Use only paint and paint system approved by Daimler AG. The Daimler AG painting specifications must be observed. Check with the customer whether the rear lower section of the bumper is to be painted or not. Where applicable, do not perform this step.
14	Modify rear bumper	With CODE 950 (AMG sport package)
			AN88.30-P-0007-01EX
15	Install remaining parts
16	Enter special equipment in online vehicle data card via vehicle documentation system (VeDoc)	Add:  CODE 550 (Trailer hitch)
17	Document retrofitted equipment in VeDoc	Attach note "Trailer hitch retrofitted as per AN31.10-P-0001ES " under field organization texts for design group 31.
18	Connect diagnostic system and select vehicle using vehicle identification number (VIN)
			AD00.00-P-2000-04A
19	Perform variant coding with XENTRY using the software calibration number (SCN)	Variant coding must be carried out with XENTRY using the SCN for the following control unit: "Front SAM with fuse and relay module"
20	Disconnect diagnostic system
			AD00.00-P-2000-04A
21	Perform function test of light signals at trailer hitch socket		AN31.19-P-8100-06CW

Fig 3: Identifying Passenger Car Wiring Harness Repair Kit (220 589 04 99 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Wiring Harness Repair Kit (000 589 13 99 00)

Courtesy of MERCEDES-BENZ USA