300E 4MATIC (124.230) L6-3.0L (103.985) (1990)
![background image](/mercedesbenz/300e_4matic_(124.230)/l6-3.0l_(103.985)/Page-2682001.png)
Radio/Stereo: All Technical Service Bulletins
Radio - New Model Introduction
REF. NO. MBNA 82/40
To: OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE: November 1989
SUBJECT:
MODEL YEAR 1990 AM/FM STEREO CASSETTE RADIOS
1.
Description and New Features
1.1
As of Model Year 1990, two different radio versions will be offered. All 124, 126 and 129 models will be equipped with Version I radios and all
201 vehicles will be equipped with Version II radios.
1.2
Both of these radios deliver equal performance and provide for AM, FM stereo and cassette listening with the following new features for M.Y.
1990:
1.2.1 New FM tuner designs that offer improved weak signal reception as well as enhanced reception in areas with strong signals. Both radios can be
considered as highly competitive products. Lowering the antenna to reduce strong signal overloading will no longer be required.
1.2.2 Anti-theft CODE radio circuitry that renders the radio useless if it is removed from power, but can be recoded by the customer or dealer. Each
radio will, therefore, be assigned an anti-theft code that will be printed on two wallet size cards enclosed with the vehicle. see section 4.1 for
recoding instructions.
1.2.3 Elimination of AM stereo for improved AM reception.
2.
Service
2.1
In the event that service is required, the customer's complaint must be verified and diagnosed as per Diagnostic Chart MBNA 2329 Rev. B (in this
bulletin) and Diagnostic Manual section EB-02. Radios that are diagnosed as having no defect are not to be replaced.
2.2
Each defective radio returned must have the proper damage code selected from the Diagnostic Chart 2329 Rev. B.
2.3
Returned radios that are determined to have no defect by means of thorough and vendor testing may be returned to the dealer with subsequent
debit of claim credit.
3.
Dealer and Support
3.1
In order to avoid unnecessary replacement of radios (see section 2.3) we provide dealers with the following support: