KEYLESS-GO: Difference between revisions

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On vehicles equipped with option code [[Data_Card#889_-_KEYLESS_-_GO|889 - KEYLESS-GO]]
== Description ==
you do not need to remove the [[SmartKey]] from your pocket or handbag to unlock the car.  
<!-- GF80.61-P-0005SM, Keyless go, function, 8.5.03 -->
Simply grab the door handle and pull to unlock and open the door.
To lock the door close it and press the knob on the door handle.
To start or stop the engine hold brake and push the "start/stop" button on the gear selector


The vehicle can still be operated with the electronic key which then has priority over the KEYLESS-GO card.
The keyless go function (on vehicles equipped with option code [[Option_codes#889_-_KEYLESS_-_GO|889 - KEYLESS-GO]])
allows access and starting of the vehicle without actuating the transmitter key (A8/1).
For access and drive authorization it is sufficient to carry the transmitter key (A8/1) with you.
 
The function of the standard central locking is maintained parallel to the keyless go functions,
whereby the use of the transmitter key (A8/1) interrupts the function of the keyless go system.
 
The convenience opening function is not possible via keyless go.
 
===Unlock with keyless go===
 
The vehicle can be unlocked by:
* Pulling any door handle (global or selective opening).
* Reaching into one of the door handles
* Actuating button on transmitter key (A8/1)
 
The vehicle can only be locked and not unlocked with the trunk lid keyless go pushbutton (S62/21).
 
===Lock with keyless go===
 
The vehicle can be locked by:
* Actuating the left rear door push contact (S47/1s2), left front door push contact (S47s2), right rear door push contact(S48/1s2) or right front door push contact (S48s2)
* Actuating the trunk lid keyless go button (S62/21) on trunk lid
* Actuate button on transmitter key (A8/1)
 
[[File:W220_keyless-go_door_handle.jpg|thumb|none|KEYLESS-GO push contact on the door handle.]]
 
On vehicles with option code [[Option_codes#551_-_ANTI-THEFT.2FANTI-BREAK-IN_WARNING_SYSTEM|551 - ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM]]
anti-theft alarm (ATA) the anti-theft alarm system behaves in the same way as if the car is unlocked and locked with the transmitter key (A8/1).
 
===Start engine and switch off with keyless go===
 
The engine can be started or shut off by pressing the start/stop keyless go button (S2/3) on the selector lever.
 
[[File:W220_keyless-go_gear_selector_button.jpg|thumb|none|KEYLESS-GO push button on the [[Gearshift#Shift_knob|gear selector]].]]
 
== Components ==
<!-- GF80.61-P-0005-01SM, Keyless go, location of components -->
 
{|
|[[File:W220_KEYLESS-GO_location_components_1.jpg]]
|
* A2/12 - Rear window antenna amplifier module
* A2/31 - Rear bumper keyless go antenna
* A2/35a1 - Left antenna element
* A2/35a2 - Right antenna element
* A8/1 - Transmitter key
* S2/3 - Keyless go start/stop button
* S62/21 - Trunk lid keyless go button
* S62/26 - RTC button
* S88/6 - Trunk lid contact switch
 
* S17/3 - Left front door contact switch
* S17/4 - Right front door contact switch
* S17/5 - Left rear door contact switch
* S17/6 - Right rear door contact switch
* S47 - Left front door actuator
* S47/1 - Left rear door actuator
* S48 - Right front door actuator
* S48/1 - Right rear door actuator
|}


<!--
http://mbworld.org/forums/s-class-w220/241563-keyless-go-system.html
http://www.benzworld.org/forums/w220-s-class/2314602-keyless-go-acting-really-weird.html
-->
{|
{|
|[[File:W220_keyless-go_door_handle.jpg|thumb|none|KEYLESS-GO knob on the door handle.]]
|[[File:W220_KEYLESS-GO_location_components_2.jpg]]
|[[File:W220_keyless-go_gear_selector_button.jpg|thumb|none|KEYLESS-GO push button on the gear selector.]]
|
|[[File:W220_keyless-go_credit_card_type_key.jpg|thumb|none|KEYLESS-GO transmitter key (pre-[[facelift]]).]]
* A1 - Instrument cluster
* A37 - Pneumatic control unit (combined)
* N10/8 - Rear SAM control module
* N15/5 - Electronic selector lever module
* N69/5 - Keyless go control module
* N70 - Overhead control panel control module
 
* N73 - Electronic ignition switch control module
* A2/38 - Left front door keyless go antenna
* A2/39 - Left rear door keyless go antenna
* A2/40 - Right front door keyless go antenna
* A2/41 - Right rear door keyless go antenna
* L12 - Left front door keyless go lift solenoid
* L12/1 - Left rear door keyless go lift solenoid
* L12/2 - Right front door keyless go lift solenoid
* L12/3 - Right rear door keyless go lift solenoid
* N69/1 - Left front door control module
* N69/2 - Right front door control module
* N69/3 - Left rear door control module
* N69/4 - Right rear door control module
|}
|}


Credit card type keys were used in pre-[[facelift]] vehicles after which MB integrated the card in regular looking [[SmartKey]].
== Control Module ==
You cannot tell the difference between KEYLESS-GO key and standard SmartKey by looking at it.
 
However, KEYLESS-GO [[SmartKey]] has 1 battery while standard keys has 2 batteries.
<!-- GF80.61-P-4102SM, Keyless go control module, location/task/design/function, 220, 215 as of 1.10.02, 14.5.03 -->
The keyless go control module contains the actuation/evaluation electronic of the sensors and the actuators of the keyless go system.
The keyless go control module (N69/5) processes all actuator and sensor signals of the keyless go system.
 
The keyless go control module is connected with the EIS control module (N73) via passenger compartment CAN bus.
The EIS control module (N73) is an interface for the keyless go control module with other control modules.
 
<!-- GF80.61-P-4102-01S, Keyless go control module, location, Models 215, 220 -->
The keyless go control module (N69/5) is located behind the
paneling in the trunk on the right above the wheelhouse.
 
[[File:W220_KEYLESS-GO_control_module_location.jpg]]
 
<!-- GF80.61-P-4102-02SM, Keyless go control module, task -->
 
=== Function ===
The keyless go control module (N69/5) has the following purposes:
 
* Control of lift solenoids in doors
* Control of keyless go inductive antennas:
** Rear bumper keyless go antenna (A2/31)
** Left antenna element (A2/35a1)
** Right antenna element (A2/35a2)
** Left front door keyless go antenna (A2/38)
** Right front door keyless go antenna (A2/40)
** Left rear door keyless go antenna (A2/39)
** Right rear door keyless go antenna (A2/41)
 
* Locate transmitter key (A8/1) inside or outside of vehicle via antenna system
* Read in keyless go trunk lid button
* Read in keyless start/stop button (S2/3)
 
* Read in pull contact microswitch in doors
* Read in pressure contacts for doors
* Read in capacitive sensors for doors
 
== Antennas ==
<!-- GF82.62-P-4100SM, Keyless Go antenna, location/task/design/function, 12.5.03 -->
 
The antennas consist of inductive conductive loops connected to the Keyless Go control unit (N69/5).
 
The task of antennas:
* Communication between the Keyless Go control unit (N69/5) and the transmitter key (A8/1).
* Location of transmitter key (A8/1), inside/outside the vehicle.
 
<!-- GF82.62-P-4100-01S, Keyless Go antenna, location -->
{|
|[[File:W220_KEYLESS-GO_antenna_location.png]]
|
* A2/31 - Rear bumper Keyless Go antenna
* A2/35a1 - Left antenna element
* A2/35a2 - Right antenna element
* A2/38 - Keyless go left front door antenna
* A2/39 - Left rear door Keyless Go antenna
* A2/40 - Keyless go right front door antenna
* A2/41 - Right rear door Keyless Go antenna
|}
 
<!-- GF82.62-P-4100-04SM, Keyless Go antenna, function -->
 
=== Function ===
The inductive antennae in the doors, in the rear, in the luggage compartment
and in the rear bumper are actuated by the Keyless Go control unit (N69/5).
 
Their electromagnetic fields cause the transmitter key (A8/1) to
transmit its authorization code via radio to the right antenna amplifier module (A2/12).
The transmitter key used last is interrogated first.
In addition via these antennae it is established whether transmitter card is outside or inside the vehicle.
The body sheet metal attenuates the antenna fields in the outer area limiting the range in a defined manner.
The range of the antennae outside the vehicle is approx. 1 - 1.5 m.
As a result the transmitter card outside the vehicle can always only be reached by the antennae on one side of the vehicle.
 
On the other hand, these range sectors overlap in the interior.
This defined range limitation allows the Keyless Go control unit (N69/5) to decide
whether the transmitter key is located inside or outside the vehicle.
 
Examples:
* Transmitter card located inside the vehicle. Transmitter card recognized by antennas on both sides of the vehicle. The Keyless Go control unit (N69/5) therefore "knows" that the transmitter key is in the vehicle.
* The transmitter key is located outside the vehicle. The transmitter key is only detected by antennae on one side of the vehicle. The Keyless Go control unit (N69/5) therefore "knows" that the transmitter key is in the vehicle.


== Instrument Cluster ==
{|
{|
|[[File:W220_keyless-go_instrument_cluster_do_not_forget_key.jpg|thumb|none|Instrument cluster message "Key - Do not forget!"]]
|[[File:W220_keyless-go_instrument_cluster_do_not_forget_key.jpg|thumb|none|Instrument cluster message "Key - Do not forget!"]]
|[[File:W220_keyless-go_instrument_cluster_computing_data_please_wait.jpg|thumb|none|Message "Computing Data - Please wait!"]]
|[[File:W220_keyless-go_instrument_cluster_computing_data_please_wait.jpg|thumb|none|Message "Computing Data - Please wait!"]]
|}
|}
== Transmitter Key ==
Credit card type keys were used in pre-[[facelift]] vehicles after which MB integrated the card in regular looking [[SmartKey]].
You cannot tell the difference between KEYLESS-GO key and standard SmartKey by looking at it.
However, KEYLESS-GO [[SmartKey]] has 1 battery while standard keys have 2 batteries.
[[File:W220_keyless-go_credit_card_type_key.jpg|thumb|none|KEYLESS-GO transmitter key (pre-[[facelift]]).]]

Revision as of 23:23, 28 January 2017

Description

The keyless go function (on vehicles equipped with option code 889 - KEYLESS-GO) allows access and starting of the vehicle without actuating the transmitter key (A8/1). For access and drive authorization it is sufficient to carry the transmitter key (A8/1) with you.

The function of the standard central locking is maintained parallel to the keyless go functions, whereby the use of the transmitter key (A8/1) interrupts the function of the keyless go system.

The convenience opening function is not possible via keyless go.

Unlock with keyless go

The vehicle can be unlocked by:

  • Pulling any door handle (global or selective opening).
  • Reaching into one of the door handles
  • Actuating button on transmitter key (A8/1)

The vehicle can only be locked and not unlocked with the trunk lid keyless go pushbutton (S62/21).

Lock with keyless go

The vehicle can be locked by:

  • Actuating the left rear door push contact (S47/1s2), left front door push contact (S47s2), right rear door push contact(S48/1s2) or right front door push contact (S48s2)
  • Actuating the trunk lid keyless go button (S62/21) on trunk lid
  • Actuate button on transmitter key (A8/1)
KEYLESS-GO push contact on the door handle.

On vehicles with option code 551 - ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM anti-theft alarm (ATA) the anti-theft alarm system behaves in the same way as if the car is unlocked and locked with the transmitter key (A8/1).

Start engine and switch off with keyless go

The engine can be started or shut off by pressing the start/stop keyless go button (S2/3) on the selector lever.

KEYLESS-GO push button on the gear selector.

Components

  • A2/12 - Rear window antenna amplifier module
  • A2/31 - Rear bumper keyless go antenna
  • A2/35a1 - Left antenna element
  • A2/35a2 - Right antenna element
  • A8/1 - Transmitter key
  • S2/3 - Keyless go start/stop button
  • S62/21 - Trunk lid keyless go button
  • S62/26 - RTC button
  • S88/6 - Trunk lid contact switch
  • S17/3 - Left front door contact switch
  • S17/4 - Right front door contact switch
  • S17/5 - Left rear door contact switch
  • S17/6 - Right rear door contact switch
  • S47 - Left front door actuator
  • S47/1 - Left rear door actuator
  • S48 - Right front door actuator
  • S48/1 - Right rear door actuator
  • A1 - Instrument cluster
  • A37 - Pneumatic control unit (combined)
  • N10/8 - Rear SAM control module
  • N15/5 - Electronic selector lever module
  • N69/5 - Keyless go control module
  • N70 - Overhead control panel control module
  • N73 - Electronic ignition switch control module
  • A2/38 - Left front door keyless go antenna
  • A2/39 - Left rear door keyless go antenna
  • A2/40 - Right front door keyless go antenna
  • A2/41 - Right rear door keyless go antenna
  • L12 - Left front door keyless go lift solenoid
  • L12/1 - Left rear door keyless go lift solenoid
  • L12/2 - Right front door keyless go lift solenoid
  • L12/3 - Right rear door keyless go lift solenoid
  • N69/1 - Left front door control module
  • N69/2 - Right front door control module
  • N69/3 - Left rear door control module
  • N69/4 - Right rear door control module

Control Module

The keyless go control module contains the actuation/evaluation electronic of the sensors and the actuators of the keyless go system. The keyless go control module (N69/5) processes all actuator and sensor signals of the keyless go system.

The keyless go control module is connected with the EIS control module (N73) via passenger compartment CAN bus. The EIS control module (N73) is an interface for the keyless go control module with other control modules.

The keyless go control module (N69/5) is located behind the paneling in the trunk on the right above the wheelhouse.


Function

The keyless go control module (N69/5) has the following purposes:

  • Control of lift solenoids in doors
  • Control of keyless go inductive antennas:
    • Rear bumper keyless go antenna (A2/31)
    • Left antenna element (A2/35a1)
    • Right antenna element (A2/35a2)
    • Left front door keyless go antenna (A2/38)
    • Right front door keyless go antenna (A2/40)
    • Left rear door keyless go antenna (A2/39)
    • Right rear door keyless go antenna (A2/41)
  • Locate transmitter key (A8/1) inside or outside of vehicle via antenna system
  • Read in keyless go trunk lid button
  • Read in keyless start/stop button (S2/3)
  • Read in pull contact microswitch in doors
  • Read in pressure contacts for doors
  • Read in capacitive sensors for doors

Antennas

The antennas consist of inductive conductive loops connected to the Keyless Go control unit (N69/5).

The task of antennas:

  • Communication between the Keyless Go control unit (N69/5) and the transmitter key (A8/1).
  • Location of transmitter key (A8/1), inside/outside the vehicle.
  • A2/31 - Rear bumper Keyless Go antenna
  • A2/35a1 - Left antenna element
  • A2/35a2 - Right antenna element
  • A2/38 - Keyless go left front door antenna
  • A2/39 - Left rear door Keyless Go antenna
  • A2/40 - Keyless go right front door antenna
  • A2/41 - Right rear door Keyless Go antenna


Function

The inductive antennae in the doors, in the rear, in the luggage compartment and in the rear bumper are actuated by the Keyless Go control unit (N69/5).

Their electromagnetic fields cause the transmitter key (A8/1) to transmit its authorization code via radio to the right antenna amplifier module (A2/12). The transmitter key used last is interrogated first. In addition via these antennae it is established whether transmitter card is outside or inside the vehicle. The body sheet metal attenuates the antenna fields in the outer area limiting the range in a defined manner. The range of the antennae outside the vehicle is approx. 1 - 1.5 m. As a result the transmitter card outside the vehicle can always only be reached by the antennae on one side of the vehicle.

On the other hand, these range sectors overlap in the interior. This defined range limitation allows the Keyless Go control unit (N69/5) to decide whether the transmitter key is located inside or outside the vehicle.

Examples:

  • Transmitter card located inside the vehicle. Transmitter card recognized by antennas on both sides of the vehicle. The Keyless Go control unit (N69/5) therefore "knows" that the transmitter key is in the vehicle.
  • The transmitter key is located outside the vehicle. The transmitter key is only detected by antennae on one side of the vehicle. The Keyless Go control unit (N69/5) therefore "knows" that the transmitter key is in the vehicle.

Instrument Cluster

Instrument cluster message "Key - Do not forget!"
Message "Computing Data - Please wait!"

Transmitter Key

Credit card type keys were used in pre-facelift vehicles after which MB integrated the card in regular looking SmartKey. You cannot tell the difference between KEYLESS-GO key and standard SmartKey by looking at it. However, KEYLESS-GO SmartKey has 1 battery while standard keys have 2 batteries.

KEYLESS-GO transmitter key (pre-facelift).
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