Remove/install CD drive in the Audio 50 APS - AR82.61-P-0100AB

MODEL 164.### ## as of 006747 with CODE (525) MB Audio 50 APS radio After expiry of the 24-month manufacturer's warranty for the radio and navigation unit 

MODEL 169.### ## as of 044671 up to 2.6.08 except CODE (809) Model year 2009 with CODE (525) MB Audio 50 APS radio After expiry of the 24-month manufacturer's warranty for the radio and navigation unit 

MODEL 203.### ## as of 657109 with CODE (525) MB Audio 50 APS radio After expiry of the 24-month manufacturer's warranty for the radio and navigation unit 

MODEL 209.### ## as of 152581 with CODE (525) MB Audio 50 APS radio After expiry of the 24-month manufacturer's warranty for the radio and navigation unit 

MODEL 245.### ## as of 000331 up to 2.6.08 except CODE (809) Model year 2009 with CODE (525) MB Audio 50 APS radio After expiry of the 24-month manufacturer's warranty for the radio and navigation unit 

MODEL 251.### ## as of 005836 with CODE (525) MB Audio 50 APS radio After expiry of the 24-month manufacturer's warranty for the radio and navigation unit 

Fig 1: Identifying CD Drive Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	The following error messages require the CD drive (1) to be replaced: "CD/DVD cannot be ejected" "General CD/DVD read error"
1	Remove radio and navigation unit (A2/56)	Model 164	AR82.60-P-7502GZ
		Models 169, 245	AR82.60-P-7502AK
		Model 203 as of 24.4.04	AR82.61-P-7412PA
		Model 209 as of 1.6.04	AR82.61-P-7412QA
		Model 251 Place radio and navigation unit (A2/56) down on an ESD workplace. The device electronics may be damaged if this is not done. ESD protection	AR82.60-P-7502RT
2	Remove protective film attached to the side
3	Remove bolts (2)
4	Remove screws/bolts (3)
5	Unscrew screw/bolt (4)
6	Detach upper section of housing (5) on both sides from lower section of housing (6) using suitable screwdriver	Ensure that upper section of housing (5) is seated correctly in lower section of housing (6).
7	Swivel upper section of housing (5) upwards until electrical connector (7) is accessible
8	Carefully detach the electrical connector (7)	Do not touch conductor tracks on circuit board, as otherwise damage may occur to the device's electronics.
9	Remove upper section of housing (5) from lower section of housing (6)
10	Remove screws/bolts (8)
11	Spread upper section of housing (5) and remove CD drive (1) from upper section of housing (5)	Ensure that CD drive (1) is seated correctly in upper section of housing (5).
12	Install in the reverse order
13	Check navigation function	Start navigation, enter destination and start route guidance.
14	Check playback function of an audio CD