5
E70 Exterior Lighting
The exterior lighting in the E70 is based on the exterior lighting system implemented in
the E90.
The E70 features the welcome light, making the vehicle even more customer-friendly.
The exterior lighting system is switched on for approximately. 20 seconds when the vehi-
cle is unlocked. This has the advantage of locating the vehicle more easily under unfa-
vorable light conditions.
A further feature is the daytime driving light that can be activated or deactivated via the
Personal Profile.
The following graphic shows where the control units responsible for the exterior lighting
are located in the E70.
* Components ins
t
alled depending on equipment
configur
ation
Introduction
Index Explanation Index Explanation
1
Dynamic s
t
ability contr
ol
5
A
dv
anced crash saf
ety management
2
Rain/driving lights/solar sensor*
6
Steering column switch cluster
3
Roof functions center
7
Car Access System 3
4
V
ertical dynamics management
*
8
F
ootw
ell module
Control Units for the Exterior Lighting
6
E70 Exterior Lighting
The input/output diagram provides a quick overview of the exterior lighting. It also shows
which input or output signals are used for the exterior lighting functions.
IPO - Exterior Lighting
System Overview
L
egend for IPO - Exterior Lighting
7
E70 Exterior Lighting
I
ndex
E
xplanation
I
ndex
E
xplanation
1
Footwell module FRM
9
Sensors, vertical dynamics management
2
F
ront lighting
10
R
ear lighting
3
Trailer module
11
Hazard warning switch
4
Junction box control unit
12
Steering column switch cluster
5
Car Access System 3
13
Lights control panel
6
Identification transmitter
14
Door contact
7
Rain/driving lights/solar sensor in mirror base
PT-CAN
Powertrain CAN
8
Brake light switch BLS
K-CAN
Body CAN
K-CAN signals at the footwell module
In/out Information Source/sink Function
In Crash signal
Crash sensor > advanced crash safe-
ty management
Interior lighting ON, hazard warning lights ON,
terminal 58g ON
In
Status, trailer
module
Trailer socket outlet > trailer module Trailer lighting
Out
Dir
ection indi-
cator
St
eering column stalk direction indi-
cator > trailer module
Direction indicator ON
S
chematic Circuit Diagram
8
E70 Exterior Lighting
L
egend for Schematic Circuit Diagram
The range of
the headlights is adapt
ed dynamically to the respective vehicle statuses
based on the signals from the ride-height sensors. The vehicle statuses include, for
example, braking or accelerating as well as various load conditions.
On vehicles equipped with vertical dynamics management, the footwell module receives
the ride-height information via the F-CAN.
9
E70 Exterior Lighting
Index Explanation Index Explanation
1
Main headlight, left
11
Rear light cluster, left in tailgate
2
Front fog light, left
12
Tail light, left
3
Front fog light, right
13
Ride-height sensors, rear
4
Main headlight, right
14
Lights control panel
5
Rear light cluster, right
15
Ride-height sensors, front
6
Rear light cluster, right in tailgate
16
Footwell module FRM
7
Raised brake light
17
Signals via F-CAN
8
license plate light, right
F-CAN
Chassis CAN
9
Filter with rejector circuit, raised brake light
K-CAN
Body CAN
10
license plate light, left
KL 30
Terminal 30
K-CAN signals at the footwell module
In/out Information Source/sink Function
In Crash signal
Crash sensor >
advanced crash safety management
Interior lighting ON, hazard warning
lights ON, terminal 58g ON
In
Status,
trailer module
Trailer socket outlet >
trailer module
Trailer lighting
Out
Direction
indicator
Steering column stalk direction indicator
> trailer module
Direction indicator ON
F-CAN signals at the footwell module
In/out Information Source/sink Function
In
Vehicle Ride
Height
Sensor, vertical dynamics management >
footwell module
Adaptation of headlight range
10
E70 Exterior Lighting
The following system components are installed for the exterior lighting:
• Control units
– The footwell module contains the complete functionality to control and monitor
the exterior lighting.
– Roof functions center with integrated ultrasonic interior protection (motion sensor)
Providing signal, e.g. for visual alarm or visual feedback of Anti-theft alarm system
– Car Access System 3 providing signal, e.g. for visual feedback of central locking
system
– Advanced crash safety management providing signal, e.g. triggered by crash
• Headlights
– Low beam/high beam headlights
– Fog lights
• Direction indicator lights
• Direction indicator light repeaters
• Rear light clusters in vehicle body and tailgate
– Tail light
– Brake light
– Rear fog light
– Reversing light
– Direction indicator lights
• Lights control panel
• Steering column switch cluster
– Steering column stalk, high beam/headlight flasher
– Steering column stalk, direction indicator lights
– Steering column stalk, wiper with button for automatic driving lights control
• Sensors
• Center-lock button
System Components
11
E70 Exterior Lighting
Bi-Xenon Headlights
Daytime Driving Light
The daytime driving light is produced by the inner and outer corona ring. The inner cham-
ber of the bi-xenon headlight is used for the daytime driving light.
The inner corona ring is illuminated from behind. The reflector is designed to ensure that
the light mainly illuminates the corona ring. There is a darkened shutter in the middle of
the corona ring that blanks off the forward light from the reflector.
Light from the same headlight chamber is coupled in two fiber optics cables and fed to
the outer corona ring.
The outer corona ring functions as a light guide. The inner corona ring is brighter than the
outer corona ring in daytime driving lights mode.
Index Explanation
1
Side Light/Daytime Driving Light
2
Side Light
3
Low bean/high beam/headlight
flasher
4
Direction indicator light
12
E70 Exterior Lighting
The footwell module decreases the daytime driving lights as soon as the side lights or
low beam lights are switched on. Consequently, both corona rings of the daytime driving
light are now used for the side lights.
Index Explanation
1
Side Light Ring
2
Light Guide
3
Side Light Ring
4
Bulb
5
Cover
13
E70 Exterior Lighting
Rear Light Cluster
Design
The rear light cluster of the E70 is based on a split design. One part is integrated in the
body and the other in the upper tailgate. The two parts form the complete rear light clus-
ter. The rear light in the body section has four chambers. Almost every chamber, with the
exception of the tail light LED, is equipped with a 21 W bulb.
The following chambers are equipped with a 16 W bulb.
• Reversing lights 16 W
• Brake force display 16 W
• Brake light chamber 2
The rear light in the tailgate has 2 chambers. One chamber is for the rear fog light while
the other
chamber is used for the tail light.
The direction indicator light is red. The light cover is also red.
The direction indicat
or
light cover for versions outside the US is light red. The orange
color for the direction indicator light is achieved by means of a light filter.
Index Explanation Index Explanation
1
Tail Light
5
Brake Light
2
Brake Light
6
Tail Light
3
Direction Indicator Light
7
Brake Force Display
4
Reversing Light
14
E70 Exterior Lighting
Tail Lights
The tail lights of the E70 are equipped with LEDs. The light from 4 LEDs is routed
through fiber optics conductors. The fiber optics conductors distribute the light uniformly.
Side Marker Lights
The US version of the E70 has reflecting side marker lights at the front. They are located
in the side apron. The reflective side marker lights at the rear are integrated in the tail light
clusters in the US version.
The active side marker lights in the US version is generated by the dimmed front direc-
tion indicator lights.
Rear Reflectors
The rear reflectors are located in the bumper.
Lights Control Panel
The lights control panel features following controls as standard:
• Light switch for side lights and low beam
• Manual headlight-range adjustment
The light control panel contains additional controls corresponding to the scope of option-
al extras.
The additional controls are:
• Automatic driving lights control
• Fog light button
• Head-up display button
Không có nhận xét nào:
Đăng nhận xét