Central Locking System, Basic Function - GF80.20-P-9900A
MODEL ALL (CAR)
Overview
This document contains the following information:
- General
- Unlocking/locking the vehicle
- Acoustic and visual verification signals
General
The CL controls the unlocking/locking of the vehicle. Actuators in the vehicle doors, trunk lid or tailgate unlock or lock the respective locks.
"Global" or "Selective" can be set as the types of unlocking for unlocking the vehicle.
The entire vehicle is unlocked in the case of global unlocking. The opening of the trunk lid or tailgate or fuel filler flap is permitted.
In the case of selective unlocking, the driver's door is unlocked and the fuel filler flap can be opened. If the vehicle is subsequently unlocked again, all additional vehicle doors are unlocked and the trunk lid or tailgate can be opened.
Unlocking/locking the vehicle
The CL can be triggered via the following control elements or functions:
| Control element/function | Release |
|---|---|
| Transmitter key | Press unlock/lock button on transmitter key. The transmitter key must be authorized. |
| KEYLESS-GO door handle (vehicles with KEYLESS-GO) | Grab hold of and/or pulling a door handle. The transmitter key must be authorized. |
| Mobile phone (vehicles with vehicle access and drive authorization via mobile phone) | Hold mobile phone to one of the KEYLESS-GO door handles. The mobile phone must be authorized. |
| Front inside door handle switch | Actuate unlock or lock switch. The fuel filler flap always remains unlocked in the case of locking via the lock button. |
| Automatic locking | Exceedance of a defined vehicle speed or waiting time (relocking). The function can be manually activated or deactivated. |
| Emergency opening after an accident | Triggered by the Supplemental Restraint System. To facilitate access to the vehicle occupants, auxiliary material and QR code on the fuel filler flap. |
| CL remote door unlock or CL remote door lock (vehicles with HERMES) | Triggered by Service Center. For the case that, for example, the transmitter key has been locked into the vehicle or forgotten. |
| Trunk lid control button (vehicles with remote trunk closing and KEYLESS-GO) | By pressing the trunk lid control button, the trunk lid is closed and the vehicle is then locked. The transmitter key must be authorized and its position determined. |
| Tailgate control button (vehicles with EASY-PACK tailgate and KEYLESS-GO) | By pressing the tailgate control button, the tailgate is closed and the vehicle is then locked. The transmitter key must be authorized and its position determined. |
| Trunk lid/tailgate external operation switch (vehicles with KEYLESS-GO) | By actuating the trunk lid/tailgate external operation switch, the trunk lid or tailgate is unlocked. The transmitter key must be authorized and its position determined. |
| HANDS-FREE ACCESS (vehicles with HANDS-FREE ACCESS) | Via kick movements under the rear bumper, the trunk lid or tailgate is unlocked and opened or closed and locked. The transmitter key must be authorized and its position determined. |
The CL evaluates the respective incoming request and forwards this to the involved control units. These in turn unlock/lock the door locks via the respective CL motor. The opening of the trunk lid or tailgate and fuel filler flap is permitted or blocked.
The driver's door remains unlocked if the CL is locked with the transmitter key even though the driver's door is not fully closed. The entire vehicle remains unlocked in vehicles with KEYLESS-GO.
Play protection
No additional actions are executed after 40 central locking actions that are performed close together. The count value is reduced by one every 7 s. The CL can only be actuated again once the count value has dropped below 40.
Hybrid vehicle or electric vehicle
The socket for the charging cable is unlocked/locked via the CL.
Vehicles with anti-theft alarm system (ATA)
The ATA triggers an alarm if the driver's door of a locked vehicle is opened with the emergency key.
Additional door lock (vehicles with increased anti-theft protection)
When the door is locked, the connection of the inside door handle lever to the door lock is mechanically decoupled. It is no longer possible to open the door from the inside. It is thus not possible to break into the vehicle by smashing a window and opening the door from the inside.
Acoustic and visual verification signals
All CL actions are indicated to the user via visual and acoustic verification signals.
Acoustic feedback
The acoustic verification signal can be activated/deactivated via the multimedia system. It is output via the horns. The horns are actuated once during unlocking or locking. No acoustic verification signal is output if a door, trunk lid or tailgate or fuel filler flap is still open during locking.
Visual feedback signal
The visual verification signal is output via the hazard warning lights. One flashing cycle is output when unlocking. Three flashing cycles are output when locking. No visual locking verification signal takes place if a door, trunk lid or tailgate or fuel filler flap is still open during locking.
| Subsystems | |||
| Authorization of transmitter key/mobile phone, basic function | GF80.20-P-1004A | ||
| Position determination of transmitter key, basic function | GF80.20-P-1009A | ||
| Further basic functions | |||
| Actuate turn signal light, basic function | GF82.10-P-1023A | ||
| Control units | |||
| Front door control unit, basic function | GF72.29-P-9891A | ||
| Rear door control unit, basic function | GF72.29-P-9892A | ||
| Electronic ignition lock control unit, basic function | GF80.57-P-9890A | ||
| Components | |||
| Trunk lid/liftgate lock, basic function | GF80.20-P-2012A | ||
| Central locking system inside door handle switch, basic function | GF80.20-P-2014A | ||
| Fuel filler cap central locking system actuator, basic function | GF80.20-P-2015A | ||
| Door lock, basic function | GF80.20-P-2017A | ||
| Transmitter key, basic function | GF80.35-P-2001A | ||
| KEYLESS-GO door handle, basic function | Model all (CAR) with code 889 (KEYLESS-GO) |
GF80.61-P-2003A | |
| Rear switch module, basic function | Model all (CAR) with code 871 (HANDS-FREE ACCESS) |
GF80.61-P-9890A |