Smart Car Manuals — manuals, parts, fault codes, and trusted mechanics for every Smart fortwo, Roadster, and Forfour

Manuals, guides, and technical resources for every Smart fortwo, Roadster, and Forfour generation.

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Smart Generations at a Glance

Year  +  Body  =  Model code

Generation

  • 4501st Gen Fortwo1998–2007
  • 4512nd Gen Fortwo2007–2015
  • 452Smart Roadster2003–2006
  • 4533rd Gen Fortwo / 2nd Gen Forfour2016+
  • 4541st Gen Forfour2004–2006

Body code prefix

  • C450 / C451 / C453Coupé models
  • A450 / A451 / A453Cabrio (Convertible) models
  • W453 / W454Forfour (4-door) models

Put them together

  • 2010 hardtop Fortwo = C451
  • 2017 convertible = A453
  • 2005 Forfour = W454

Multi-Model & General Reference

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Technical Reference (450/451)

A cross-generational guide that compares specs and service data between the original 450 and the 451 models. 977 pages
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Breakdown Supplement (450)

A vintage guide for the first-gen City-Coupe/Fortwo covering emergency procedures, bulbs, and basic fuses. 33 pages
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Paint Codes (450/452/454)

A Glasurit-based reference listing official color names and codes for body panels and Tridion cells. 13 pages
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Accessories Guide (450/451/453)

A combined catalog of genuine Smart parts and accessories spanning multiple generations. 28 pages
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Cosmic Cabrios

The most highly recommended mobile repair for your Smart convertible. UK based but travels internationally.
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USA + Canada Mechanics

Curated list of 132+ mechanics and repair shops recommended by Smart fortwo owners across the US and Canada.
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UK, Europe & Global Mechanics

Visit Evilution for the most comprehensive Smart car knowledge base — trusted maps, expert insights, and global resources.
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Best of YouTube

The best YouTube content for every Smart model, organized by job type and skill level.
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SmartDiag-AI

Tell SmartDiag what your Smart is doing — or paste a code. Get ranked likely causes, step-by-step checks, and source citations from the workshop manual.
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Show all 23 multi-model / 450 / 454 / Modern manuals from the library

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Model Series 451 (2007–2015)

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Quick Guide (451)

A condensed reference manual for the 451 facelift models, focusing on essential controls and daily operations. 12 pages
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US Service Manual Intro (451)

The technical launch guide for the US-spec 451; includes detailed engine (M132) and transmission specifications. 98 pages
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ED Service Manual Intro (451 ED)

A highly specific technical guide for the Gen 3 Electric Drive (ED), focusing on high-voltage battery and motor systems. 84 pages
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Workshop Service Manual (450/451/452/454)

A comprehensive repair manual covering mechanical, electrical, and maintenance procedures. 4,602 pages
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Remote Start Installation Guide (451)

A community-sourced installation manual for adding aftermarket remote start functionality to the US 451. 15 pages
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Secondary Air Injection Notes (451)

A technical bulletin regarding damage codes and diagnostics for the M132 engine's air injection system. 1 page
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EV Battery FAQ (451 ED + 453 EQ)

Mercedes-Benz USA brand-level care guide for the smart electric drive battery — temperature limits, charging habits, and the 12 V battery that nobody tells you about. 2 pages
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Cabrio Operating Manual (451)

The convertible-specific operator's manual for the 451 Cabrio. Covers the soft top, roll bar, and trunk-cover handling the coupe version skips. 298 pages
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UK Operating Instructions (451)

The right-hand-drive UK edition of the 451 operator's manual, with UK dashboard symbols, units, and roadside guidance. 275 pages
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Model Series 453 (2016–2024)

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Owners Manual (453)

The complete North American operator's manual for the 2016 gasoline Fortwo, including basic operation, safety features, and dashboard symbols. 234 pages
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Service Manual Intro (453)

A technical deep-dive for service staff covering the engine, chassis, and electronic architecture for the newest generation. 122 pages
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Workshop Manual (453)

A comprehensive repair manual covering mechanical, electrical, and maintenance procedures for the third-gen Fortwo. 4,180 pages
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Smart Media (Radio) Guide (453)

A specialized supplement for the touchscreen infotainment, navigation, and Bluetooth connectivity systems. 77 pages
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Standard Radio Guide (453)

Detailed operating instructions for the standard non-touchscreen audio system, including radio and Bluetooth pairing. 42 pages
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Fuse Allocation Guide (453)

A quick-reference chart for fuse box locations and circuit assignments, essential for electrical troubleshooting. 4 pages
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2018 Owner Manual (453)

Updated North American owner's manual for the late 453 facelift. Replaces the 2016 edition for late-model coupes. 231 pages
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EQ Owner Manual (453)

Owner's manual for the smart EQ — the all-electric 453 — covering the high-voltage system, charging, and EQ-specific dash and infotainment. 190 pages
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Model Series 452 (Roadster)

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SAM Wiring Schematic (452)

Detailed electrical diagrams for the Signal Acquisition Module (the "brain") of the Roadster. 1 page
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Electrical Schematic (452)

Detailed electrical diagrams for the Roadster. 14 pages
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Water Leak Guide (452)

The essential "leak booklet" covering remedial measures for common water ingress points in the Roadster and Roadster-Coupe. 48 pages
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Operating Manual (452)

The full operator's manual for the Roadster and Roadster-Coupe — the companion document to the wiring schematics and water-leak guide. 264 pages
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Forfour (453 + 454)

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EQ Forfour Owner Manual (453)

Owner's manual for the all-electric 4-door 453 forfour — EQ powertrain content paired with forfour body and rear-door specifics. 231 pages
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ECE Owner Manual (453 forfour)

European-spec owner's manual for the 4-door 453 forfour built on the Renault Twingo platform. The most complete forfour reference for 2015–2024. 280 pages
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Owner Manual (454 forfour)

Owner's manual for the 1st-gen forfour — the rare 2004–2006 4-door built on the Mitsubishi Colt platform. Distinct chassis from the 453 forfour. 232 pages
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Maintenance Guidelines (454)

OEM service intervals and consumables for the 2004–2006 forfour. A short companion to the 454 owner's manual. 46 pages
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Additional Resources

Evilution.co.uk

The deepest Smart resource on the web

A long-running smart car wiki. Encyclopedic DIY guides, repair instructions, and model-specific quirks across 450 through 453 — grounded in hands-on experience. The companion YouTube channel covers the harder repairs (gearbox, clutch, electrical) where photos alone don't cut it. Subscribe to Evilution (£5/month) to help keep these resources free for Smart owners.

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Manuals, Documents & Tools

Operation CHARM

Free factory service manuals scanned by hobbyists. Covers the US-market 451 fortwo (2008–2013) — useful when the official MBUSA portal comes up short.

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Manualslib — Smart archive

Community-uploaded archive of Smart owner's manuals, service manuals, and quick guides — broader chassis and EU/UK coverage than CHARM. Useful when you need a manual we haven't catalogued yet at our /manuals/ index.

Browse Manualslib

MBUSA Owner Resources

Official Mercedes-Benz USA owner portal — manuals, how-to videos, and warranty details for smart vehicles sold in the US.

MBUSA Owners