🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLHTCU Electra Glide Ultra Classic

Year:

2015

Product Name:

Harley Davidson FLHTCU Electra Glide Ultra Classic Motorcycle 2015 Service & Repair Workshop Manual Download PDF

Model Code:

FLHTCU

👋 Introduction

Market Segment:

Full-dress touring motorcycle, premium segment

Target Audience:

Long-distance touring riders, those seeking maximum comfort, features, and luggage capacity

Primary Competitors:

Indian Roadmaster, Honda Gold Wing, BMW K1600 GTL

Comfort And Ergonomics:

Batwing fairing, integrated wind deflector, comfortable seating for rider and passenger, rider backrest, floorboards

Touring Amenities:

Large saddlebags, tour-pak with passenger backrest, premium audio system, cruise control, climate control (optional/integrated)

Technology:

ന് infotainment system, CB radio, intercom (depending on specific trim/options)

📋 Manual Details

Primary Coverage:

Complete factory service, repair, and workshop information

Secondary Coverage:

Maintenance, troubleshooting, diagnostics, component repair, and overhaul

Estimated Page Count:

Varies by specific factory manual, typically 500-1000+ pages for this model/year

Manual Type:

Service and Repair Workshop Manual

Language:

English

Format:

Downloadable PDF

📖 Manual Coverage

Powertrain:

Engine assembly, lubrication, fuel system, ignition system, exhaust system, transmission, clutch, drive belt

Chassis:

Frame, suspension (front fork, rear shocks), steering, wheels, tires, braking system (hydraulic, ABS), final drive

Electrical System:

Battery, charging system (alternator, regulator/rectifier), starting system, lighting (headlights, taillights, turn signals), instrumentation, wiring diagrams, Body Control Module (BCM), Engine Control Module (ECM), audio system, cruise control, security system

Bodywork And Fittings:

Fairings, body panels, saddlebags, tour-pak, seating, fuel tank, handlebars, controls, mirrors, windshield

Maintenance:

Scheduled maintenance, oil changes, filter replacements, brake fluid flushes, coolant checks, spark plug service, drive belt tensioning

Repair:

Engine disassembly and reassembly, transmission rebuilds, clutch replacement, brake caliper overhauls, suspension component replacement, electrical component diagnosis and repair, fairing repair and replacement

Diagnostics:

Troubleshooting common issues, diagnostic trouble codes (DTCs), using diagnostic tools (e.g., Harley-Davidson Dealer Diagnostic System - H-D DDFS)

Special Tools:

Identification and usage of specialized Harley-Davidson tools required for specific procedures

Depth:

Comprehensive, covering routine maintenance to complete engine and transmission rebuilds, including detailed torque specifications, clearances, and assembly sequences.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution, optimized for clear viewing and printing. Includes detailed diagrams, schematics, and illustrations.

Binding Type:

N/A (Digital PDF)

Paper Type:

N/A (Digital PDF)

Searchability:

Typically text-searchable PDF, allowing quick access to specific information.

Licensing:

No expiry dates, no extra fees (as per product description)

⚙️ Engine Specifications

Engine Type:

Air-cooled Twin Cam 103™

Displacement:

1690 cc (103 cubic inches)

Configuration:

V-twin, pushrod-actuated, overhead valves

Bore X Stroke:

3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)

Compression Ratio:

9.0:1

Torque:

Approx. 101 ft-lbs @ 3,250 RPM (137 Nm @ 3,250 RPM)

Horsepower:

Not officially rated by Harley-Davidson, but typically estimated around 70-75 HP at the crank.

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Premium unleaded gasoline, minimum 91 octane

Oil Type:

Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent)

Oil Capacity:

4.0 US qt (3.8 L) (with filter change)

🔧 Transmission

Transmission Type:

6-speed Cruise Drive®

Primary Drive:

Chain, 34/46 ratio

Final Drive:

Belt, 32/66 ratio

Clutch Type:

Hydraulic, 9-plate, wet

Overdrive:

Integrated overdrive gearing in 6th gear for reduced engine RPM at highway speeds.

Transmission Fluid Type:

Harley-Davidson Formula + Transmission and Primary Chaincase Lube (or equivalent)

Transmission Fluid Capacity:

2.7 US qt (2.5 L)

📐 Dimensions

Length:

103.1 in. (2619 mm)

Wheelbase:

64.2 in. (1630 mm)

Ground Clearance:

5.1 in. (130 mm)

Rake:

26°

Trail:

6.7 in. (170 mm)

Dry Weight:

838 lbs (380 kg)

Wet Weight:

Approx. 877 lbs (398 kg) (with full fluids)

Gross Vehicle Weight Rating:

Not explicitly stated, but rider/passenger/luggage capacity should be considered.

Fuel Tank Capacity:

6.0 US gal (22.7 L)

Saddlebag Capacity:

Approx. 2.2 cu ft (62.4 L) total

Tour Pak Capacity:

Approx. 2.4 cu ft (68 L)

🛡️ Safety Features

Crash Test Ratings:

Motorcycles are not typically rated by organizations like NHTSA or IIHS in the same way as cars.

Braking System:

Linked, hydraulic disc brakes with ABS (Anti-lock Braking System) standard.

Cruise Control:

Standard electronic cruise control for highway stability and rider fatigue reduction.

Lighting:

Halogen headlight, LED taillight and brake light, amber incandescent turn signals. Fog lights (optional).

Security:

H-D Smart Security System with immobilizer, key fob activation.

💡 Technology Features

Infotainment System Name:

Boom!™ Box 6.5 GT Infotainment System

Display Type:

6.5-inch color touchscreen

Features:

AM/FM radio, CB/Intercom, Jukebox (USB port for MP3 player), Bluetooth connectivity for phone and audio streaming, GPS navigation (optional depending on trim).

Cruise Control:

Standard electronic cruise control.

ABS:

Standard Anti-lock Braking System (ABS).

Bluetooth:

Standard Bluetooth connectivity for hands-free calling and audio streaming.

Usb Port:

Included for media playback and device charging.

🔧 Maintenance

Initial Service:

First service typically at 1,000 miles (1,600 km)

Routine Maintenance:

Generally every 5,000 miles (8,000 km) for oil changes, or annually, whichever comes first. More frequent checks for brakes, tires, and fluids.

Major Service Items:

Spark plugs typically at 10,000 miles, drive belt inspection/replacement based on wear and tension, fork oil service (variable), brake fluid flush every two years.

Primary Chaincase Oil:

Harley-Davidson Formula + Transmission and Primary Chaincase Lube (or equivalent)

Engine Oil:

Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent)

Brake Fluid:

DOT 4 (for hydraulic clutch and ABS brake systems)

Fork Oil:

Harley-Davidson Screamin' Eagle High-Performance Fork Oil (typically 15W or 20W, check specific manual for exact type and quantity)

Common Wear Items:

Drive belt wear, clutch cable adjustment (if not hydraulic), suspension component wear over time, potential for exhaust leaks at head pipe.

Electrical System Considerations:

While generally reliable, issues can arise with battery connections, charging system components (regulator/rectifier), and accessory wiring. Proper torque on electrical connections is critical.

Engine Temperature Management:

Air-cooled engines can be sensitive to extreme heat and prolonged low-speed operation. Maintaining proper airflow and using recommended oil is crucial.

📚 Vehicle History

Heritage:

Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer known for its V-twin engines and touring prowess.

Electra Glide Lineage:

The Electra Glide lineage dates back to the 1960s, evolving into the 'Ultra' variants in the 1980s and becoming the benchmark for American touring motorcycles.

Twin Cam Era:

The Twin Cam engine platform was introduced in 1999 and was the primary engine for Harley-Davidson touring models until the introduction of the Milwaukee-Eight engine.

Manufacturing Location:

York, Pennsylvania, USA (primary)

Production Years For Twincam 103 Ultra Classic:

The Twin Cam 103™ was featured in the FLHTCU from approximately 2007 through 2016, with the 2015 model being a significant year for this platform.

🏆 Awards & Recognition

Brand Awards:

Harley-Davidson consistently ranks high in customer satisfaction for touring motorcycles.

Model Specific Recognition:

The Electra Glide Ultra Classic has historically been recognized as a benchmark for comfort and capability in the luxury touring motorcycle segment.