2004-2008 Cadillac XLR Service & Repair Manual
2004-2008 Cadillac XLR Service & Repair Manual
Models Covered:
- Cadillac XLR
- Cadillac XLR-V (Supercharged)
Engines Covered:
- 4.6L Northstar V8 (LH2)
- 4.4L Supercharged Northstar V8 (LC3)
Transmissions Covered:
- 5L40-E / 5L50-E 5-Speed Automatic
- 6L50 / 6L80 6-Speed Automatic
The 2004-2008 Cadillac XLR Service & Repair Manual is the definitive technical guide for this unique luxury roadster. This documentation provides complete, manufacturer-sourced procedures for both the standard 4.6L Northstar V8 and the high-performance 4.4L Supercharged V8 found in the XLR-V model.
For a sophisticated vehicle like the XLR, which pairs a Corvette-derived chassis with Cadillac's own powertrain and luxury systems, this manual is the essential resource. It contains the precise, step-by-step instructions needed to correctly diagnose, service, and repair every aspect of the vehicle to factory standards.
What’s Inside the 2004-2008 Cadillac XLR Service & Repair Manual
General Information & Maintenance
Features essential safety precautions, model identification, complete torque specifications, and all scheduled maintenance procedures necessary to keep your vehicle in optimal condition.
Engine Service & Overhaul
Provides complete teardown and rebuild procedures for both the naturally aspirated 4.6L (LH2) and the supercharged 4.4L (LC3) Northstar engines. Covers all aspects of engine mechanical, cooling, lubrication, and electronic controls.
Transmission & Driveline
Detailed repair instructions for the 5-speed and 6-speed automatic transaxles. Includes full service information for the rear drive axle, driveline components, and electronic transmission controls.
Suspension, Steering & Brakes
Comprehensive service procedures for all chassis-related systems. Contains step-by-step guides for the front and rear suspension (including Magnetic Ride Control diagnostics), power steering system, and the complete brake assembly.
Retractable Hardtop & Body
A dedicated section provides detailed diagnostics and service procedures for the XLR's signature power retractable hardtop, including the hydraulic and electrical components, limit switches, and panel adjustments.
HVAC & Electrical Systems
Includes the full factory wiring diagrams. This section offers full diagnostic procedures for the climate control system, audio and navigation, anti-theft systems, and all other vehicle control modules.
Why Choose This Professional Manual?
A low-production, high-performance vehicle like the XLR demands precision. This manual delivers the specific diagnostic strategies for the supercharged LC3 engine, calibration procedures for the Magnetic Ride Control, and the complex schematics for the retractable hardtop that generic guides simply cannot provide.
Digital Format & Compatibility
Delivered as a high-resolution, fully searchable PDF, this manual works seamlessly on Windows, macOS, iOS, Android, and Linux systems. It is ideal for use on a workshop computer, tablet, or can be printed for hands-on reference right at the vehicle.
Get Your 2004-2008 Cadillac XLR Manual Today
Empower your workshop with the same data used by GM's own technicians. Whether you're performing routine maintenance or tackling a complex hydraulic roof repair, this is the ultimate resource for keeping your Cadillac XLR in factory condition.
Printable: Yes
Language: English
Compatibility: Windows, macOS, Linux, iOS, Android
Requirements: PDF Reader (e.g., Adobe Reader)




