SMART Series 451 User manual

smart USA
Introduction of the smart fortwo
Model Series 451
Introduction into Service Manual
SN_Typ 451_us.book Seite 1 Freitag, 30. November 2007 1:56 13

Copyright
© smart USA, 2007
All rights reserved. Reproduction by any means,
electronic or mechanical, including photocopying,
recording, or by any information storage and retrieval
system or translation in whole or part is not permitted
without written authorization from the publisher.
Published by smart USA, 2007
Printed in U.S.A.
www.smartusa.com
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Content
3
Introduction of the smart fortwo, Model Series 451
Preface 7
Complete vehicle
Overview 8
Technical data 10
Maintenance 13
Safety concept 17
Electrical system
On-board electrical system/power supply 20
Complete networking 22
Wiring harnesses 24
Diagnosis 26
SAM control unit 28
Engine M132
Engine description 30
Performance graph 30
Engine data 32
Valve assembly 33
Valve timing 34
Gasoline injection and ignition system 35
Belt drive 38
Cooling system 39
Engine mount 41
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Content
4Introduction of the smart fortwo, Model Series 451
Fuel system
Fuel supply 42
Exhaust system
Overview 45
Secondary air injection 46
Automated manual transmission
Transmission description 47
Transmission data 48
Shift mechanism 49
Synchronization 54
Transmission control 55
Park pawl 61
Clutch 62
Chassis
Front axle 64
Rear axle 65
Rear module 66
Tire pressure monitor 67
Brakes 69
Steering 75
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Content
5
Introduction of the smart fortwo, Model Series 451
Body
Interior 82
Doors/flaps 86
Roof systems 90
Central locking 96
Anti-theft alarm system (ATA [EDW]) 99
Exterior lights 101
Audio system 102
Climate control 104
Customized Bodypanel System (CBS) 106
Seats 108
Supplemental restraint system 109
Body 113
Accessories
smart accessories 116
Index 120
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Content
6Introduction of the smart fortwo, Model Series 451
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Preface
7
Introduction of the smart fortwo, Model Series 451
Dear reader,
This Introduction into Service Manual presents the
new smart fortwo in model series 451.
The purpose of this manual is to inform you of the
technical features of this new vehicle. This brochure
is intended to provide information for people
employed in service, maintenance and repair as well
as for aftersales staff.
In terms of the contents, the emphasis in this Intro-
duction into Service manual is on presenting the major
assemblies and systems.
This Introduction into Service manual is not intended
as an aid for repairs or for the diagnosis of technical
problems. For such needs, more extensive information
is available in the Workshop Information System (WIS)
and in the Diagnosis Assistance System (DAS).
WIS is updated monthly. Therefore, the information
available there reflects the latest technical status.
This Introduction into Service Manual presents initial
information relating to the new smart fortwo in model
series 451 and, as such, is not stored in WIS. The
contents of this brochure are not updated. No provi-
sion is made for supplements.
We will publicize modifications and new features in the
relevant WIS documents. The information presented in
this Introduction into Service Manual may therefore
differ from the more up-to-date information found in
WIS.
All information relating to technical data, equipment
and options is valid as of the copy deadline in
September 2007 and may therefore differ from the
current production configuration.
smart USA aftersales
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Overview
8
Complete vehicle
Introduction of the smart fortwo, Model Series 451
P00.10-4192-00
P00.10-4198-00
smart fortwo coupé
smart fortwo cabrio
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Overview
Complete vehicle
9
Introduction of the smart fortwo, Model Series 451
Vehicle concept
Externally, the smart fortwo is immediately distin-
guishable by its compactness with the tridion safety
cell and its two-tone design. The smart fortwo is avail-
able in a variety of colors. The tridion safety cell in
black or silver can be combined with six different
basic colors.
The model series can be ordered as the smart fortwo
coupé or the smart fortwo cabrio.
Despite its compact appearance, the smart fortwo
provides the occupants with a generous amount of
legroom and sufficient trunk capacity.
The interior compartment has a classic design. The
instrument panel was designed with straight lines and
the colors have been kept refined. Repeated aluminum
accent trim on the air vents and the inside door
handles gives the interior design a harmonic yet
modern aspect.
Vehicle characteristics
•Overall vehicle exterior
External dimensions to suitably accommodate the
occupants and provide sufficient the trunk
capacity.
Plastic panoramic sunroof or full roof on the smart
fortwo coupé.
Tritop soft top on the smart fortwo cabrio.
•Overall vehicle interior
Numerous color and pattern variants in the
interior.
Ergonomic instrument cluster in the instrument
panel.
Clearly arranged and user-friendly center
console.
Rear-end door with integral stowage compartment
for the smart fortwo coupé or tight-fitting stowage
areas without retaining straps for the roof side
supports in the smart fortwo cabrio.
•Engine/injection system
3-cylinder gasoline engine with 52 kW.
Fuel injection system with Bosch Multi-Point-
Injection.
•Transmission
5-speed automated manual transmission AMT 2
(2nd generation).
•Suspension
MacPherson front suspension with torsion
stabilizer bars.
DeDion rear axle.
•Brake
Hydraulic 2-circuit brake system with ESP and TT
(front/rear) split, version 8.1 from Bosch.
•Steering
Equipped with rack-and-pinion steering as
standard.
Electromechanical power steering with active
steering centering and adaptation of the steering
forces available as special equipment.
•Maintenance
Maintenance concept: Maintenance service only
every two years, with only the Oil Service Plus once
a year in between.
Service flap at front for easy access to the
maintenance points.
• Safety
Restraint system with airbags and emergency
tensioning retractors.
Bodyshell made of high-strength steels.
Door reinforcements made of high-strength
steels.
Full-length knee guard for driver and passenger.
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