Breakdown assistance, function - GF82.95-P-2020G
MODEL 463.249 up to 31.8.08 as of model year 2007 model year 07.5, YoM 07
MODEL 463.271 as of model year 2007 model year 07.5, YoM 07
MODEL 463.237 as of model year 2009/YoM 08
Function requirements, general
- C. 30 ON
- Telematic Alarm Identification on Demand (emergency call system) (TELE AID) system authorized and operating error-free
- The vehicle-related breakdown assistance service is separately authorized
- An emergency call system control unit (N123/4) communication module authorized for the vehicle-related breakdown assistance service is configured ex-factory with the telephone number of the corresponding service provider
- The user is registered and authorized in the service center (Customer Assistance Center)
- One mobile phone network is available in sufficient strength and quality
- Request for breakdown assistance by operating the MB-Info and breakdown assistance button group (S93/6) for at least t = 0.5 s
- A higher-priority vehicle-related service is not active
Breakdown assistance function, general
With the breakdown assistance function it is possible for the user to contact the service center in the event of a vehicle defect, for example. The service center can then perform remote diagnosis of the actual situation and initiate effective help measures, in consideration of further vehicle-specific data.
Breakdown assistance function sequence
The status of the breakdown assistance button is read in by the emergency call system control unit via a discrete line. The emergency call system control unit automatically transmits an SMS (SMS = Short Message Service) with the following data to the service center via the communication module that is integrated in the emergency call system control unit:
- Vehicle position
- Customer identification data
- Vehicle identification data
- Condition data
A voice connection to the service center is also set up at the same time via the communication module that is integrated in the emergency call system control unit.
The communication module that is integrated in the emergency call system control unit is connected using a discrete line via the radio and cell phone antenna splitter (A28/1) to the telephone and fax antenna (A2/22). The latter transmits and receives the cellular phone signals.
The light emitting diode (LED) that is integrated in the breakdown assistance button flashes for as long as the breakdown assistance is active.
In the event of breakdown assistance, other vehicle-related services (e.g. MB-Info call) are interrupted.
In the event of a malfunction in the telephone and fax antenna (faulty because of a rollover, for example), the communication module that is integrated in the emergency call system control unit automatically transmits and receives the cellular phone signals via the emergency call antenna (A2/52).
| Emergency call system control unit, component description | N123/4 | GF82.95-P-3212G | |
| Telephone antenna, component description | A2/22 | GF82.62-P-4117G | |
| Emergency call antenna component description | A2/52 | GF82.95-P-4000G | |
| Emergency call antenna splitter component description | A28/1 | GF82.95-P-4001G | |
| MB-Info and breakdown assistance button group, component description | S93/6 | GF82.95-P-3211G |