🏷️ Basic Information

Make:

Dodge

Model:

Magnum STR8

Years Covered:

2006, 2007, 2008, 2009, 2010

Chassis Codes:

LX Platform

Engine Codes:

ESF (6.1L SRT HEMI V8)

👋 Introduction

Segment:

Full-size Sport Wagon / Performance Sedan (in sedan guise).

Target Audience:

Performance enthusiasts seeking a practical yet potent American muscle car alternative.

Competitors:

Chevrolet Impala SS, Pontiac GTO, Cadillac CTS-V, Ford Crown Victoria Police Interceptor (performance variants).

Performance Focus:

Equipped with the potent 6.1L SRT HEMI V8, emphasizing high horsepower and torque.

Practicality:

Station wagon body style offers significant cargo capacity, blending performance with utility.

Suspension Tuning:

Performance-oriented suspension and braking upgrades compared to standard Magnum models.

📋 Manual Details

Engine:

Yes

Transmission:

Yes

Drivetrain:

Yes

Suspension:

Yes

Brakes:

Yes

Steering:

Yes

Electrical System:

Yes

HVAC:

Yes

Interior Systems:

Yes

Body And Chassis:

Yes

Diagnostic Troubleshooting:

Yes

Wiring Diagrams:

Yes

Maintenance Schedules:

Yes

Total Pages:

9528

Type:

Workshop Service Manual

Purpose:

Repair and Maintenance

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Full rebuild procedures, component diagnostics, timing, valve train, lubrication system, cooling system, fuel delivery, emissions control.

Engine Electrical:

Ignition system, starter, alternator, sensors (crankshaft position, camshaft position, O2, MAP, etc.), ECU diagnostics, PCM control strategies.

Transmission Automatic:

5-Speed Automatic (NAG1 W5A580), torque converter, valve body, internal components, fluid service, electronic controls, diagnostic codes.

Drivetrain:

Rear-wheel drive (RWD) system, driveshaft, rear axle, differential service and overhaul, axle shafts, universal joints.

Suspension Front:

Independent front suspension (double wishbone), coil springs, shock absorbers, control arms, ball joints, bushings, alignment specifications.

Suspension Rear:

Independent rear suspension (multi-link), coil springs, shock absorbers, control arms, bushings, alignment specifications.

Brakes Front:

Vented disc brakes, caliper replacement, pad service, rotor specifications, ABS system integration, brake fluid specifications.

Brakes Rear:

Disc brakes, caliper replacement, pad service, rotor specifications, parking brake system, ABS system integration.

Steering:

Power steering system, steering rack, tie rod ends, power steering fluid, steering column components, alignment procedures.

Fuel System:

Fuel pump replacement, fuel injectors, fuel filter, fuel tank service, evaporative emissions (EVAP) system.

Exhaust System:

Exhaust manifolds, catalytic converters, mufflers, oxygen sensors, exhaust pipe replacement.

Climate Control:

Air conditioning system (R134a), refrigerant charging, compressor service, HVAC blower motor, heater core, cabin air filter replacement.

Body Exterior:

Panel removal and installation (hood, fenders, doors, bumpers), door mechanisms, glass replacement, weatherstripping, exterior trim.

Body Interior:

Seat removal and installation, dashboard removal, center console, headliner, door panels, interior trim components.

Lighting System:

Headlight replacement, taillight service, interior lighting, fuse box locations, bulb specifications.

Instrument Panel:

Gauge cluster removal, speedometer, tachometer, warning lights, indicator functionality.

Safety Systems:

Airbag system operation and diagnostics, seatbelt service, ABS system, traction control system (TCS), electronic stability control (ESC).

Routine Maintenance:

Oil change, filter replacement, fluid checks and top-offs, tire rotation, spark plug replacement, air filter replacement.

Component Replacement:

Detailed step-by-step guides for replacing major and minor components across all systems.

Troubleshooting:

System-specific diagnostic flowcharts, symptom-based troubleshooting, error code interpretation.

Rebuilding Overhaul:

Comprehensive instructions for rebuilding engines, transmissions, differentials, and other major assemblies.

Diagnostics:

Use of diagnostic scan tools, understanding OBD-II data, sensor testing, actuator testing.

Adjustments:

Wheel alignment procedures, brake adjustments, clutch adjustments (if applicable), idle speed adjustments.

Calibration:

Throttle body calibration, steering angle sensor calibration, other electronic system calibrations.

Depth:

Comprehensive from basic maintenance to complete drivetrain and engine rebuilds, including advanced diagnostics and electrical schematics.

📊 Manual Specifications

Quality:

High-resolution PDF, ensuring clear text and legible diagrams.

Searchability:

Searchable text content for quick information retrieval.

Printability:

Printable pages, allowing for physical copies for workshop use.

Type:

N/A (Digital PDF format)

Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Type:

6.1L (370 cu in) SRT HEMI V8

Bore X Stroke:

4.05 in x 3.58 in (103 mm x 91 mm)

Compression Ratio:

10.3:1

Valvetrain:

Overhead Valve (OHV), 2 valves per cylinder, Pushrod actuation

Horsepower:

425 hp @ 6000 rpm (approx.)

Torque:

420 lb-ft @ 4800 rpm (approx.)

Fuel Delivery:

Sequential Multiport Fuel Injection (MPI)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

ECM:

Powertrain Control Module (PCM)

🔧 Transmission

Type:

5-Speed Automatic Transmission (Mercedes-Benz NAG1 W5A580)

Type:

N/A (Only automatic offered for STR8)

Gear Ratios First:

3.58

Gear Ratios Second:

2.19

Gear Ratios Third:

1.41

Gear Ratios Fourth:

1.00

Gear Ratios Fifth:

0.83

Gear Ratios Reverse:

4.33

Fluid Type:

ATF+4 (Mopar specification, equivalent to MB 236.10)

Fluid Capacity:

Approximately 8.0 quarts (7.6 liters) for complete fill.

📐 Dimensions

Length:

Approx. 195.1 inches (4955 mm)

Width:

Approx. 74.1 inches (1882 mm)

Height:

Approx. 58.7 inches (1491 mm)

Wheelbase:

Approx. 116.0 inches (2946 mm)

Curb Weight:

Approx. 4075 lbs (1848 kg)

Gross Vehicle Weight Rating:

Approx. 5300 lbs (2404 kg)

Cargo Volume Behind Rear Seats:

Approx. 29.5 cu ft (835 liters)

Cargo Volume With Rear Seats Folded:

Approx. 63.1 cu ft (1787 liters)

🛡️ Safety Features

NHTSA Frontal Crash Driver:

5-Star (for 2006 model year)

NHTSA Frontal Crash Passenger:

5-Star (for 2006 model year)

IIHS Frontal Offset:

Good (for 2006 model year)

ABS:

Yes (4-wheel Anti-lock Braking System)

Traction Control:

Yes (Traction Control System - TCS)

Electronic Stability:

Yes (Electronic Stability Program - ESP/ESC)

Brake Assist:

Yes (BAS - Brake Assist)

Airbags Front:

Advanced multistage driver and front-passenger airbags

Airbags Side:

Front seat-mounted side-impact airbags

Airbags Curtain:

Full-length side-curtain airbags (optional on some models, standard on later STR8)

Seatbelts:

3-point front and rear seat belts with pretensioners and load limiters

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for CHildren) system

💡 Technology Features

Audio System:

Premium Boston Acoustics sound system (optional), AM/FM/CD/MP3 player.

Navigation:

Optional factory navigation system available.

Display:

Center console display for audio and climate controls, driver information center in instrument cluster.

Cruise Control:

Standard electronic cruise control.

Parking Assist:

Optional rear park assist sensors.

Phone Integration:

Optional Uconnect hands-free communication system available on later models.

Remote Start:

Optional factory remote start system.

🔧 Maintenance

Oil Change Interval:

Every 6,000 miles (9,600 km) or 6 months, whichever comes first, under normal driving conditions. Severe driving conditions may require more frequent changes.

Air Filter Replacement:

Every 15,000 miles (24,000 km) or 12 months.

Spark Plug Replacement:

Every 30,000 miles (48,000 km) for 6.1L HEMI.

Transmission Fluid Change:

Every 30,000 - 60,000 miles (48,000 - 96,000 km), depending on driving conditions. Consult the manual for specific severe service recommendations.

Coolant Flush:

Every 30,000 miles (48,000 km) or 24 months.

Engine Oil:

SAE 0W-40 Synthetic (MS-10850 specification recommended by SRT)

Engine Oil Capacity:

7.0 quarts (6.6 liters) with filter change.

Brake Fluid:

DOT 3

Power Steering Fluid:

ATF+4 (Mopar specification)

Coolant:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant (50/50 mix with distilled water), HOAT for some variations.

Common Issues:

Transmission solenoid issues (NAG1), differential whine/leaks, early model electronic throttle body issues, potential for worn front suspension components due to performance driving.

Hemi Tick:

Some HEMI engines may exhibit a 'hemi tick' noise, often related to valve train components; consult manual for diagnostic procedures.

📚 Vehicle History

Manufacturer:

Dodge (division of Chrysler Group LLC)

Platform:

LX Platform (shared with Chrysler 300, Dodge Charger, Chrysler Pacifica/Grand Caravan, Lancia Grand Voyager)

Introduction Standard Magnum:

Reintroduced for the 2005 model year as a 2005 model.

Introduction Str8:

Introduced as the high-performance variant of the Magnum lineup for the 2006 model year.

Discontinuation:

The Dodge Magnum line was discontinued after the 2008 model year in North America. However, this manual's coverage extends to 2010, implying potential availability or documentation for other markets or specific service needs up to that year, or a broader interpretation of the 'Magnum' nameplate's lifecycle in service documentation context.

Manufacturing Location:

Brampton Assembly Plant, Ontario, Canada

🏆 Awards & Recognition

Performance Awards:

The 6.1L HEMI engine was widely praised for its power and torque, contributing to positive reviews for the SRT8 variants.

Model Recognition:

Often cited as an 'underground' performance car, appealing to a niche market for its blend of practicality and raw power.

Emissions Compliance:

Certified to meet relevant US EPA and CARB emissions standards for its model years.