Subject Page
Introduction . . . 2
Body Specifications . . . 3
Technical Data . . . 4
Body . . . 5
Interior Rear Seats . . . 6
Center Arm Rest . . . 7
Child Seat Restraint . . . 8
Cargo Area . . . 9
Tailgate . . . 11
Emergency Release . . . . . . 12
Rear Window . . . 13
Body Electronics . . . 15
Central locking . . . 16
Rear Wiper/Washer System . . . 17
Sound System Antenna Configuration . . . 20
Antenna Diversity . . . 21
Audio Speakers . . . 22
Table of Contents
E46 “SPORT WAGON”
SOP - 01/2000 INTRODUCTION
Objectives of the Module:
The E46/3 “Sport Wagon” is being introduced to the US market as a 2001 Model Year vehi- cle. It joins the highly successful Sedan and Coupe models to further enhance the product line up and offer 3 series customers an alternative choice of vehicle.
Up to the “B” pillars, the Sport wagon is identical to the E46 sedan. The rear doors have been remodeled for wagon usage and the tail gate is similar to the E39 Sport Wagon with an opening rear window.
The rear seats fold down to provide 1345 liters of cargo space. With the seats up, the rear compartment provides 435 liters of load space.
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At the end of this handout section, you will be able to:
• Identify the changes to the body of the E46 for the Sport Wagon.
• List the changes to the interior of the E46 Sport Wagon.
• Discuss the operation of the rear tailgate / window system.
• Discuss the operation of the rear wiper / washer system.
BODY SPECIFICATIONS
1471 mm 1739 mm
1478 mm 1932 mm
758 mm 2725 mm
4478 mm
995mm
1382mm 1378mm
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TECHNICAL DATA
The E46 Sport Wagon is 7 mm longer that the sedan and the unloaded height is 6 mm lower. The wheel base, width and turning radius are the same as the E46 sedan. The fol- lowing are the maximum cargo capacity/ loads:
• 435 Liters luggage capacity - with rear seat back up
•1345 Liters luggage capacity - with back rest down
• 540KG in the rear
• 75 KG on the roof.
Power train and interior equipment are comparable to the E46 - 323 Sedans and Coupes.
The E46 Sport Wagon is being introduced with the 2.5 liter 6 cylinder engine and Siemens MS 42 engine management system. The automatic transmission will be the GM 5-speed with AGS control.
ENGINE - M52 TU 2.5 LITER
Horse Power - 170 @ 5500 RPM Torque - 181 @ 3500 RPM
Automatic Transmission - GM V - 5 Speed - until 4/00
Automatic Transmission - 5 HP 19 - after 4/00
BODY
From the front bumper up to the “B” pillar the E46 Sport Wagon body is identical to the sedan. From the “B” pillar rearward, the body shell of the Sport Wagon is all new and includes:
• New Rear doors
• New Tailgate and hinge mechanism
• New Frameless rear window
• New Rear Bumper
• No tail gate lock cylinder
• Roof rails as optional equipment
The structural rigidity and “structural dynamic” characteristics introduced with the E46 sedan are carried over to the E46 Sport wagon. As with the sedan and coupe, the Sport Wagon body shell acts as the passenger’s safety cage along with the tubular impact struc- tures for the front and rear bumper mountings.
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INTERIOR
Up to the “B” pillar, the interior equipment and trim level corresponds to the E46 sedan. The front seat options are the same as the E46 Sedan, while the rear seating area has been newly designed to provide an attractive package that offers optimum functionality and use- able space when the seats are folded down for cargo loading.
The rear seats backs are a 60/40 split with the center arm rest section on the left seat back.
The center passenger’s inertia reel is mounted to the left seat back, while the left/right rear passenger’s belt reels are mounted on the wheel housings. The lower section of the seat back is separate foam piece that enables the back rest pivot point to be higher on the seat back. This allows the back rest to fold flat for more useable cargo loading space.
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INTERIOR
Center Arm Rest
The center arm rest incorporates the non-adjustable center head rest. The center arm rest is folded down to gain access to the storage compartment and cup holders , which are integrated into the rear of the head rest.
52E46SPTWGNCUP0500 STORAGE COMPARTMENT C
CUUPPHHOOLLDDEERR
INTERIOR
Child Seat Anchor
There are three child seat hold down anchors positioned behind the rear seat back rest.
The plastic covers must be removed to access the hold down anchors,
CHILD SEAT ANCHOR
CARGO AREA
The cargo area offers 435 liters of cargo space with the rear seat back rest raised and 1345 liters with it lowered. The cargo area offers a spring loaded - roller blind and cargo net sim- ilar to the E39 Sport Wagon.
00E46SPTWGNCARGO0500 51E46SPTWGNCARGONET0000
CARGO AREA
Storage Compartments
Storage areas on the left and right in the rear are used to house the rear window washer fluid reservoir on the right and vari- ous sound system components on the left.
Load Floor/Spare
The load floor is removable to access the spare tire and control module mounting area located beneath. A strap is provided to hold the load floor up while accessing the storage area. The interior trim panel must also be removed for access to the spare and control modules.
Power Socket
A 12 Volt power socket is installed on the left side of the cargo area behind the rear seat back.
WINDOW WASHER FLUID RESERVOIR SOUND SYSTEM
COMPONENTS
SPARE TIRE OOL KIT
ANTENNA AMPLIFIER
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TAIL GATE
The tail gate is similar in design to the E39 Sport Wagon, including the rear glass that is hinged separately and can be opened independently from the tail gate.
Rear Actuator
The actuator for the tailgate release is mounted on the rear apron behind the trim panel. Control of the actuator is a function of the GM - ZKE system.
TAILGATE RELEASE SWITCH
TAIL GATE
Emergency Release
The tailgate does not feature a lock cylinder so an emergency release mechanism is incor- porated into the tail gate latch. It allows mechanical opening of the gate actuator in the event of an electrical failure. The release is located along the lower edge of the rear apron behind a small access cover. After removing the cover, the lever is pushed to the right to mechanically release the tail gate.
The rear apron of the E46 Sport Wagon is lowered for easier loading/unloading. A plastic rubbing strip prevents the bumper from being scratched when cargo is being loaded/unloaded.
EMERGENCY RELEASE
REAR WINDOW
The Frameless rear window is bonded to a metal carrier which is hinged to the body. If the rear window needs replacement, it is supplied with the glass bonded to the metal carrier.
The release switch for opening the rear glass is incorporates into the rear wiper arm cover under the triangle trim plate.
REAR WINDOW SWITCH
REAR WINDOW
Rear Glass Hinge
The hinges are a new design (torsional coil spring) that are compact in shape for space saving reasons.
The rear window is adjusted through the slotted mounted bolts. The gap of the window should be uniform on all sides.
The height of the rear window is adjust- ed using shims on the hinge mounts.
Refer to the repair manual for complete adjustment procedures and sequence.
Rear Washer Nozzle
The rear window washer spray nozzle, as well as the third brake light, is mounted at the top left side integrated into the spoiler.
63E46SPTWGNTAILLIGHT0000 41460001
BODY ELECTRONIC SYSTEMS
The E46 Sport Wagon uses the body electronic systems from the E46 Sedan, Including the Driver’s Information Systems and Central Body Electronics (ZKE V). Changes have been incorporated into the systems for specific Sport Wagon functions and features including:
• Control of the rear tail gate/window latching and locking system.
• Control of the rear window wiper./washing system.
• Changes to the antenna configuration for the sound system.
• The UIS interior sensor for the DWA system is modified to suit the Sport Wagon body.
• The seat heating system is changed to the three stage heating control as in the 5 and 7 series vehicles.
• The outside rear view mirrors are now incorporated into the seat memory system (same as the E46iC).
CENTRAL LOCKING
ZKE CONTROL OF TAILGATE/WINDOW LATCHING SYSTEM
The tailgate can be opened from any of three input signals including:
• Remotely from FZV
• Interior tailgate release button - on left kick panel
• Unlock switch pad - located above the license plate
Any of these input request signal the GM to activate the tailgate latch motor. The GM will also switch on the interior lights with a unlock request for the tailgate.
The window is opened from the release switch located on the rear wiper arm cover.
Pressing the switch signals the GM to activate the rear window release relay.
REAR WIPER/WASH SYSTEM
The rear wiper/washer a function of the ZKE system and follows the basic operational sequences of the E39 Sport Wagon” wiper system. The rear wiper motor and gear assembly is mounted in the tail gate through insulating bushing to prevent operation noises from being transmitted into the body’s interior.
The wiper pivot bearing, wiper shaft and wiper arm are mounted on the rear window. A mechanical coupling is used to connect the two components as on the E39 wagon.
REAR WIPER/WASH SYSTEM
Operation
Operation of the rear wiper/washer is controlled from the wiper stalk switch on the steering column. The scope of operation is the similar to the E39 wagon as follows:
• INTERMITTENT WIPE - Standard operation
• PROGRAMMED INTERMITTENT WIPE
• CONTINUOUS WIPE
• WASHING CYCLE
Pressing the wiper stalk switch forward to the first detent activates the rear wiper in the intermittent mode. The timed interval is approximately 7 seconds. The full sweep and park positions of the wiper arm are recognized by two hall sensors on the motor gear assembly.
If the wiper is switched OFF, the wiper arm will return to the park position.
P
Prrooggrraammmmiinngg PPrroocceedduurree - for the wiping interval is as follows:
• Briefly switch the wiper ON/Off.
• Wait the desired interval time.
• Switch the wiper back ON again
• The OFF time will be the programmed interval - up to approximately 30 seconds.
Continuous wiping - is activated any time the transmission is shifted into reverse. The rear wiping module receives the reverse signal from the LSZ for continuous wiping activation.
Rear window washing - is activated by pressing the stalk switch forward past the wiping detent. The washer cycle is as follows:
• Wash cycle 1 - washer pump is switched ON for 1.5 seconds. The wiper activation starts 1 second later.
• Wash cycle 2 - washer pump is switched ON for .5 seconds - after a delay of of .8 sec- onds. Wiper continues to operate.
• Wash cycle 3 - washer pump is switched ON for .5 seconds - after a delay of .8 seconds.
This is followed by two wipe dry cycles.
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NOOTTEE:: The wiper will remain in the intermittent wiping mode after washing until wiper is switched off.
WIPER/WASHER I P O
SOUND SYSTEM
Antenna Configuration
The sound systems available for the E46 Sport Wagon are the same as the systems installed in the E46 Sedan and Coupe. The following anten- na layout is used for the Sport wagon body:
• FM 1 - Rear window on the right side
• FM 2 - Rear window in the center
• FM 3 - Left rear side window
• AM - Rear spoiler
• FZV - Combined with FM 2 antenna
The amplifier for FM 1 and FM 2 antennas is located beneath the rear spoiler. The signal from the antennas passes from the amplifier to the diversity module located in the left side storage compartment.
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SOUND SYSTEM
Antenna Configuration
The FM 3 antenna has a separate ampli- fier that is integrated into the diversity module which is mounted behind the storage cover on the left side.
Diversity Switching
The FM1/FM2 amplifier can only send one FM signal at a time. The diversity module controls the switching of the signals by applying a volt- age signal to the RF cable. When the voltage signal is low, the amplifier sends the FM 1 sig- nal. When the voltage level is high, it sends the FM 2 signal. The FM 1 and FM 2 inputs are continuously checked for the clearest signal.
The diversity module then checks the signal from FM1/FM2 with the signal from FM 3. The clearest of these signals will always be sent to the radio for FM reception.
FZV Antenna
The RF receiver module (315MHz) is integrated into the antenna amplifier. The receiver has a separate KL 30 power supply for its operation. Signal from the FZV key are processed by the module and sent to the GM for locking/unlocking functions over a ded- icated line.
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AUDIO SYSTEM SPEAKERS
The rear speakers for the sound system are mounted on the left and right wheel housing behind the trim covers
If the Navigation system is installed in the Sport wagon, the GPS receiver module is installed under the load floor in front of the spare tire well.
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GP PS S R RE EC CE EIIV VE ER R M MO OD DU UL LE E
REVIEW QUESTIONS
1. What are the similarities between the E46 and E39 “Sport Wagon” tail gates?
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___________________________________________________________________________________________________________________________________________________ 2. What change was designed into the E46 “Sport Wagon” rear seat and why”?
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___________________________________________________________________________________________________________________________________________________ 3. Describe the E46 “Sport Wagon” antenna system’s operation.
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___________________________________________________________________________________________________________________________________________________ 4. Where is the emergency release for the tailgate located on the E46 “Sport Wagon”?
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___________________________________________________________________________________________________________________________________________________ 5. What rear window wiping stage occurs when shifting into reverse?
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