300TE 4MATIC (124.290) L6-3.0L (103.985) (1991)
Radio/Stereo: All Technical Service Bulletins
Antenna - Improved FM Reception
REF. NO.
82/63
TO:
OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE:
July 1992
SUBJECT:
MODEL YEAR 1990/91 MODELS 129 IMPROVED AUTOMATIC ANTENNA
A new automatic antenna with improved capacitive ground is available for pre - MY 1992 model 129 vehicles. This antenna is not applicable to vehicles
equipped with the Tri-band antenna for the MB integrated cellular telephone.
In case of customer complaints regarding FM interference noise (not related to ignition or alternator noise) the guide tube (2, Fig. 1) can be replaced with
the newer version.
Procedure
1.
Remove telescoping antenna mast.
2.
Remove automatic antenna motor.
3.
Loosen screw (1) on antenna (Fig. 1).
4.
Remove old guide tube by unscrewing it from the motor. Screw on new tube with capacitive ground springs (2, Fig. 1) and align.
5.
Retighten screw (1).
6.
Fit ground wire from removed guide tube onto new tube.