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W211 Introduction

219 HO W211 Intro (WFF) 08-05-02

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W211 Introduction Topics

• Body changes as compared to W210

• Lighting and instrument cluster

• Crash concepts

• Flatwire cable

• Audio system

• Supplemental Restraint System (SRS)

• Optional equipment training

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W211 vs. W210 - Body Comparison

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Interior Dimensions

• Height +12 mm

• Headroom (front) -3 mm w/glass roof

• Headroom (rear) +13 mm

• Trunk +35 liters

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Exterior Dimensions

• Wheel base +21 mm

• Width +23 mm

• Length unchanged at 4818 mm

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Radiator Blinds

• Located in front of radiator

• Only on E320

• Designed to create better Cd of 0.26

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Radiator Blind Components

1 - Electrical connector

2 - Switchover valve

3 - Radiator shutter control module (N56)

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Blind Function

• Controlled by Passenger SAM (N10/11)

• Inputs- vehicle speed- coolant temperature

• Operating parameters- blinds close upon start up (if engine is cold) - up to 50 mph blinds open (if engine is warm)- above 50 mph blinds closed- above 207º F blinds open regardless of vehicle speed

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Lighting and Instrument Cluster

Tail lights

Rain/light sensor

Instrument cluster

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Tail Lights

• Long lasting bulbs - closed glass capsule filled with xenon gas

• Bulbs not replaceable

• Substitute lighting

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Rain / Light Sensor (B38)

• 1 block unit with 10 lenses

• Linked via an interface with N70

• Equipped with heating element

• Controls - intermittent wipe request - automatic driving lights on request

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Rain / Light Sensor Layout

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Instrument Cluster

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Instrument Cluster Legend

1 - Left turn signal indicator lamp 2 - ABS / ESP warning lamp 3 - Speedometer 4 - Multifunction display 5 - Distance warning lamp (only with DTR) 6 - Right turn signal indicator lamp 7 - Coolant temperature display with warning lamp 8 - Tachometer with ABS malfunction indicator lamp, high beam indicator lamp, seat belt warning lamp, restraint systems warning lamp 9 - Selector lever position with transmission range display10 - Clock with preglow indicator, engine diagnosis and brake indicator lamps11 - Fuel tank level display with warning lamp12 - Instrument lighting, reset button

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Instrument Cluster Changes

• Designed using back-lighting technology

• Digital fuel gauge

• Digital vehicle temperature gauge

• Analog type clock

• Circular multi-function display

• Separate mileage and gear position display

• Some indicator functions have been relocated

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Crash Concepts

• Bolted front and rear modules

• Headlamp housing with repair fixtures

• Energy-absorbing bumpers with protective strips replaceable from the outside

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Front & Rear Modules

• Prevents damage to frame in minor collisions

• Shorter repair times

• Lower repair costs

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Headlamps & Bumper Strips

• Headlamp fixtures have predetermined fracture points

• Protective strips easily replaced

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W211 Flatwire Cables

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Flatwire Application

• Application 211- door panel harness (illumination)- headliner harness (illumination)

• Repair procedures- currently non-repairable- do not hang components from flatwire- no color codes, uses circuit I.D. number printed 20 mm from connector ends

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Flatwire Construction

• Construction- flexible printed cable- 200 micron thickness, 5.5 mm wide = 20A- stacking layers increases amperage rating of cable- new lamella style contacts

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Flatwire Advantages &Disadvantages

• Advantages- manufacturing cost reduction- production fully automated- reduced installation space (less bulky)- 20 to 30% weight savings- improved connection contacts (better reliability)- fewer connections- future designs will allow control module integration in flatwire harness

• Disadvantages- fragile- not repairable at this time

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Flatwire - Front OCP

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Flatwire - Rear OCP

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Flatwire Door Panel Harness Routing

Front door panel Rear door panel

Connector lock

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Audio System

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System Highlights• Audio head units

- Audio 50- COMAND (not available at launch)

• Audio Gateway- 2 versions - with and without LOGIC 7 (base version = without LOGIC 7)

• Media Oriented Systems Transport Bus (MOST)- replaces D2B- offers increased gross data transfer rate

• Audio Gateway functions- AM/FM reception- audio amplifier- interface between MOST and CAN B- central diagnostic interface for MOST components

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Audio 50 Head Unit

• Initial head unit for vehicle launch

• Different design

• Produced by Harman Becker

• CD drive for audio - 6 disc changer optional

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Audio 50 Controls

• Volume adjustment similar to A/C control ring

• Incorporates softkeys for menu selections

• Push control knob for scrolling and selecting

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Audio Cassette Access

• Open button

• Closed manually

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Compact Disc Access

• Push button to open

• Push button to close

• Storage / CD location

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CD Changer

• 1 single insert slot

• 2 CD eject button

• Plays 6 discs + 1 in head unit

• LED’s indicates CD in changer

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LOGIC 7 Multi-Channel AudioSystem

• A 420-watt sound system

• 12 state-of-the-art loudspeakers (7.1 system: 7 channels + 1 subwoofer channel)

• 7-channel surround matrix that converts any 2-channel material into surround sound

• Produces a true 360º “enveloping” soundfield with maximum “audio sweetspot” for all passengers

• System utilizes a digital fiber optic network (MOST Bus) interface for optimized signal transmission

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LOGIC 7 Component Layout

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LOGIC 7 Component Legend

1 - Audio Gateway (N93/1) sound 7.1 / 8-channel 420-watts DPS amplifier 2 - One 80 mm metal matrix center speaker 3 - Four 41 mm metal matrix dome tweeters 4 - Four 168 mm metal matrix wide-band transducers 5 - Two 80 mm metal matrix surround speakers 6 - One 260 mm double voice-coil subwoofer 7 - Audio head unit 8 - CD changer 9 - Antenna amplifier10 - Microphone

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Supplemental Restraint System(SRS)

Window and side airbags

ETR’s

Rollover deployment

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Window & Side Airbags

• Rear occupant side airbags in rear doors

• Incorporates window airbags

• Front occupant side airbags relocated to front seats

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Window Bags

Gas generator relocatedin "A" pillars

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Front Side Air Bags

• Left front side airbag with left front side air bag ignition squib (R12/9) • Right front side airbag with right front side air bag ignition squib (R12/10)

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Seat Occupant Sensor (B48)

• Senses weight

• Used to determine deployment threshold

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New Style ETR’s

• Redesigned mechanical function - retraction mechanism - torsion rod

• Front passenger ETR ignition squib (R12/2)

• Driver ETR ignition squib (R12/1)

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Belt Force Limiter

• Integrated into front ETR’s only

• Belt force limiter squib yellow connector: - passenger belt force limiter (R12/26) - driver belt force limiter (R12/27)

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Rear ETR

• Rear ETR’s as known from previous chassis

• Right rear ETR ignition squib (R12/7)

• Left rear ETR ignition squib (R12/6)

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Frontal Acceleration Sensors(B48/1 and B48/2)

• Located behind the front headlamp assemblies

• Arrow on sensors must point toward the grill

• Sensors record frontal acceleration values and send them to restraint systems control module (N2/7)

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Side Impact Sensors(A53/1 and A54/1)

Located on the leadingedge of the frontseat cross member

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Rollover Deployment Logic

If N2/7 determines a roll over:

• Side curtains deploy

• ETR’s deploy

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W211 Optional Equipment Training

• Panorama roof (solar panels covered later)

• HVAC (covered later) - 2 zone system - 4 zone system

• Keyless go (covered later)

• Distronic (covered later)

• Heated steering wheel

• Dynamic front seats

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Heated Steering Wheel (HSW)

• Heating wires in wheel

• Switched on / off using switch

• Red LED indicates function

• Functions for 24 minutes - 7 minutes high - 17 minutes low

• Uses a DC/DC converter

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DC/DC Converter (N99)

• Controls, monitors, shutsdown and diagnosis of heater

• Bolted to crossmember behind instrument cluster

• Raises the on-board voltage to 42 or 48 volts

• Provides 100 W heating power

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Dynamic Seat

Improved cornering comfort

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Dynamic Seat Control Unit Locations

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Multi Function Display