300SL (129.061) L6-3.0L (104.981) (1991)
Illustrated On Model 129
1
Connect quiescent current retention unit
See "Commercially Available Tools" given below.
2
Disconnect and connect ground lead from battery
3
Remove radio and navigation operating unit (APS) (A2/29)
NOTE: For this purpose, insert removal plates (1) Press back retaining springs (arrow) on removed radio and navigation operating unit (APS)
and pull out removal plates (1)
4
Disconnect electrical connectors on rear of radio and navigation operating unit (APS) (A2/29)
5
Activate unit code for APS
NOTE: Is necessary only when a new radio and navigation operating unit is put into operation for the first time
6
Install in opposite order
NOTE: Voice prompt is loaded automatically within 20 minutes after connecting the battery
Commercially Available Tools
Commercially Available Tools
Model 129 With Code (750a), (753) MB Radio Audio 30 RDS
Removing and installing radio
MODEL 129, 170, 202, 208, 210
with CODE (750a) MB radio Audio 30 RDS
with CODE (753) MB radio Audio 30 RDS
with CODE (756a) MB radio Audio 10 RDS with CD compartment
MODEL 461
with CODE (EF1) Audio 10 RDS
with CODE (EF2) Audio 10 RDS with CD slot