Remove/install vehicle interface (portable CTEL) - AR82.70-P-8920GZ

MODEL 164 with CODE (388) Telephone "Handy", UPCI system 

P82.70-5377-09 

Shown on model 164.1 

Fig 1: Identifying Vehicle Interface (Portable CTEL) Components Location

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Notes on avoiding damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Buffer basic data of Universal Portable CTEL Interface (UPCI [UHI]) control unit (N123/1) in STAR DIAGNOSIS diagnosis system	Only when replacing Universal Portable CTEL Interface (UPCI [UHI]) control unit (N123/1). Installation:  Transfer buffered basic data to new Universal Portable CTEL Interface (UPCI [UHI]) control unit (N123/1).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A
2	Release rear seat (1) and fold forward
3	Raise cover (2)
4	Disconnect and cover fiber optic cable coupling (3)
	Notes on avoiding damage to fiber optic cables during repair work	Model 164, 169.0/3, 211.0/2/6, 221.0/1 245.2, 251 with Media Oriented System Transport (MOST)	AH82.60-P-0001-05AK
5	Disconnect electrical connector (4)
6	Remove four nuts (arrows) and remove Universal Portable CTEL Interface (UPCI [UHI]) control unit (N123/1)
7	Install in the reverse order