🏷️ Basic Information

Make:

Gilera

Model:

Nexus 300 IE E3

Year Range:

2008 Onward

Engine Code:

M357M (typically)

Emission Standard:

Euro 3 (E3)

👋 Introduction

Segment:

Sport Scooter / Maxi-Scooter

Target Audience:

Riders seeking performance, comfort, and modern features in a scooter for urban commuting and touring.

Key Competitors:

Piaggio X10 350, Yamaha XMAX 300, Suzuki Burgman 400 (depending on market and specific year).

Engine Performance:

Fuel-injected 300cc engine offering a good balance of power and efficiency for its class.

Chassis Design:

Sporty chassis and suspension tuning for responsive handling and stability.

Ergonomics:

Comfortable riding position, good wind protection, and spacious ergonomics suitable for longer rides.

Braking System:

Typically equipped with ABS (Anti-lock Braking System) for enhanced safety, especially on the E3 models.

Design Aesthetics:

Aggressive, sporty styling reminiscent of a motorcycle, distinguishing it from more conventional scooters.

📋 Manual Details

Manual Type:

Service Repair Workshop Manual

Language:

English

Format:

PDF Download

Estimated Pages:

High (typically 300+ pages for a comprehensive manual)

📖 Manual Coverage

Engine Mechanical:

Complete engine overhaul, disassembly, assembly, inspection, internal components, piston, rings, cylinder, crankshaft, camshaft, valves, timing.

Fuel System:

Fuel injection system, injectors, fuel pump, fuel filter, fuel pressure regulator, throttle body, ECU control.

Ignition System:

Spark plugs, ignition coils, ECU timing, sensor inputs.

Cooling System:

Radiator, coolant hoses, water pump, thermostat, fan operation, coolant specifications.

Transmission Drivetrain:

Automatic transmission (CVT), clutch operation, variator, torque converter, final drive, gear oil specifications.

Braking System:

Front and rear brakes, hydraulic system, brake lines, master cylinder, calipers, brake pads, brake discs, brake fluid type and bleeding procedures.

Suspension Steering:

Front forks (telescopic), rear shock absorber, linkages, steering head bearings, alignment specifications, lubrication.

Electrical System:

Battery, charging system (stator, regulator/rectifier), starter motor, lighting circuits (headlight, taillight, indicators), horn, wiring diagrams, fuse box.

Electronic Control Unit ECU:

ECU functions, sensor inputs (MAP, TPS, IAT, O2, etc.), diagnostic trouble codes (DTCs), reset procedures, basic programming if applicable.

Bodywork Chassis:

Fairings, seat, storage compartments, frame inspection, body panel removal and installation, fasteners, graphics.

Wheels Tires:

Wheel removal and installation, tire types, tire pressures, wheel bearing inspection, rim specifications.

Instrumentation Controls:

Dashboard indicators, switches, levers, throttle control, brake levers, diagnostic port.

Routine Maintenance:

Oil changes, filter replacements (oil, air), spark plug replacement, coolant checks, brake fluid replacement, chain lubrication (if applicable to final drive).

Troubleshooting Diagnostics:

Step-by-step diagnostic procedures for common faults, error code interpretation, symptom-based troubleshooting guides.

Engine Rebuild Repair:

Complete engine disassembly, component inspection, wear limits, assembly sequence, torque specifications for all internal engine components.

Transmission Overhaul:

Variator inspection and replacement, clutch assembly servicing, final drive inspection and service.

Electrical Troubleshooting:

Wiring diagram interpretation, circuit testing, component testing, common electrical faults.

Brake System Maintenance:

Brake pad replacement, brake fluid flush and bleed, caliper servicing.

Suspension Steering Service:

Fork seal replacement, shock absorber inspection, steering bearing adjustment.

Body Panel Replacement:

Detailed instructions for removing and refitting all body panels, fairings, and trim.

Special Tool Requirements:

Identification and usage of specialized tools required for specific procedures.

Depth:

Comprehensive (from basic maintenance to full engine rebuilds and diagnostics)

Detail Level:

Detailed step-by-step instructions with clear diagrams and illustrations.

📊 Manual Specifications

File Type:

PDF

Searchable Text:

Likely (standard for reputable PDF manuals)

Resolution:

High resolution for clarity of diagrams and text

Printable:

Yes

Binding:

N/A (Digital Download)

Paper Quality:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Four-stroke, single-cylinder, liquid-cooled, SOHC (Single Overhead Camshaft), 4 valves.

Displacement:

278 cc

Bore X Stroke:

75 mm x 63 mm (approximate)

Compression Ratio:

10.5:1 (approximate)

Horsepower:

Approx. 22-23 HP @ 7250 RPM

Torque:

Approx. 24-25 Nm @ 6000 RPM

Fuel Delivery:

Electronic Fuel Injection (EFI) with Keihin or similar system

Fuel Type:

Unleaded Petrol (Gasoline)

Fuel Tank Capacity:

Approx. 12 Liters

Oil Type:

SAE 10W-40 or 15W-50 Synthetic Motorcycle Oil (API SG/SH/SJ or higher)

Oil Capacity W Filter:

Approx. 1.3 - 1.5 Liters

🔧 Transmission

Transmission Type:

Automatic CVT (Continuously Variable Transmission) with Torque Converter

Drive Type:

Belt drive to rear wheel

Gear Ratio Variations:

Continuously variable for optimized performance across the speed range.

Transmission Fluid Type:

Specific CVT Fluid or SAE 80W-90 Gear Oil (refer to manual for exact specification)

Transmission Fluid Capacity:

Approx. 0.2 Liters (for final drive/gearbox)

📐 Dimensions

Length:

Approx. 2170 mm

Width:

Approx. 770 mm

Height:

Approx. 1340 mm (seat height typically around 800 mm)

Dry Weight:

Approx. 170 kg

Curb Weight:

Approx. 185-190 kg (with fluids)

Front Tire Size:

120/70-15

Rear Tire Size:

140/70-14

Wheelbase:

Approx. 1500 mm

Wheel Bolt Pattern:

N/A (Typically single-sided swingarm with a hub)

🛡️ Safety Features

ABS:

Available / Standard on E3 models (Bosch ABS system typically)

Braking System Type:

Dual hydraulic disc brakes (front), Single hydraulic disc brake (rear).

Lighting:

Halogen headlight, LED taillight and indicators (depending on specific build).

Chassis Construction:

Steel frame for rigidity and stability.

Ride Comfort:

Large diameter telescopic front forks and adjustable rear suspension contribute to a stable and comfortable ride.

💡 Technology Features

Instrument Panel:

Digital and analog display including speedometer, tachometer, fuel gauge, coolant temperature, and warning lights.

Lighting Technology:

Multi-reflector headlight for improved illumination, potential LED taillight/indicators.

ABS System:

Bosch ABS system (likely dual-channel on E3 models) for enhanced braking control.

Diagnostic Port:

Standard OBD-II or proprietary diagnostic connector for electronic fault diagnosis.

🔧 Maintenance

Engine Oil Change:

Every 6,000 - 10,000 km or annually (refer to manual for precise interval).

Oil Filter Replacement:

With every engine oil change.

Air Filter Cleaning Replacement:

Check every 6,000 km, replace as needed or as specified.

Spark Plug Replacement:

Every 12,000 - 18,000 km (check manual for specific plug type and gap).

Transmission Oil Change:

Every 12,000 - 18,000 km or as specified.

Coolant Replacement:

Every 2-3 years or as specified.

Brake Fluid Type:

DOT 4 Synthetic Brake Fluid

Coolant Type:

Ethylene Glycol based antifreeze mixture (e.g., 50/50 with distilled water)

Electrical Gremlins:

Some older models may experience minor electrical connection issues if not maintained. The manual will detail diagnostic steps.

Variator Wear:

As with many CVT systems, variator rollers and ramps can wear over time, potentially affecting acceleration. The manual covers inspection and replacement.

Cooling System Leaks:

Regular inspection of hoses and connections is recommended to prevent coolant leaks.

📚 Vehicle History

Manufacturer:

Gilera is an Italian manufacturer with a long history in motorcycle production, now part of the Piaggio Group.

Nexus Series:

The Nexus line was Gilera's flagship sport-scooter range, known for its sporty design and performance characteristics.

Manufacturing Location:

Italy (primarily)

🏆 Awards & Recognition

Review Accolades:

While specific awards for the 2008 Nexus 300 IE E3 are not widely cataloged, Gilera scooters generally receive praise for their sporty handling and design in motorcycle and scooter reviews of the era.