2004 BMW Z4 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- 3.0i Convertible 2-Door
- 2.5i Convertible 2-Door
Engines covered
- 3.0L 2979CC l6 GAS DOHC Naturally Aspirated
- 2.5L 2494CC 152Cu. In. l6 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
ON CERTAIN PASSENGER VEHICLES, UNDER CERTAIN ENVIRONMENTAL CONDITIONS, A VAPOR LOCK IN THE FUEL PUMP COULD OCCUR CAUSING THE ENGINE TO STALL. IF THIS WERE TO HAPPEN, THE ENGINE WOULD NOT BE ABLE TO B
IF STALLING WERE TO OCCUR, THE DRIVER WOULD BE UNABLE TO MAINTAIN VEHICLE SPEED OR ACCELERATE, INCRE
DEALERS WILL INSTALL A RESISTOR IN THE ELECTRICAL LINE POWERING THE FUEL PUMP IN ORDER TO PREVENT AN
The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on ho
The basic conditions for initializing the power windows are not met.
Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may not start when placing the key against the steering column.
Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Braking from high speed with cold brake components (less than 212 degree
Discharged Battery Energy Diagnosis Must Be Performed: The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This doc
Power Reduction FC2A82 Intake VANOS and/or FC2 A87 Exhaust VANOS Camshaft Fault: The "Service Engine Soon" (MIL) lamp is illuminated and engine power reduction is perceived. This situation can occur after driving for some time with the engi
BMW: BATTERY HAS AN INCREASED DEMAND DUE TO DEVELOPEMENTAL PROCESS OF THE ELECTRICAL SYSTEM. THIS IS CAUSING THE BATTER TO NEED TO UNDERGO AN ENERGY DIAGNOSIS. *KB
BMW: THE REAR LAMP IS NOT WATER TIGHT DUE TO CRACKS DUE TO STRESS. WATER MAY ENTER THE LAMP. *RM
Showing the 8 most recent of 29 technical service bulletins on file with NHTSA.
THE STEERING IS THE ONLY PROBLEM BUT YOUR WEB SITE INSISTS ON MY SELECTING AT LEAST 3 AFFECTED PARTS. IN ANY CASE, THE STEERING RECENTLY BECAME JERKY AND NOTCHY WHILE DRIVING. AFTER SEVERAL DAYS OF
THE STEERING IS THE ONLY PROBLEM BUT YOUR WEB SITE INSISTS ON MY SELECTING AT LEAST 3 AFFECTED PARTS. IN ANY CASE, THE STEERING RECENTLY BECAME JERKY AND NOTCHY WHILE DRIVING. AFTER SEVERAL DAYS OF
FOR ABOUT THE LAST FIVE THOUSAND MILES, MY STEERING HAS DEVELOPED THE DANGEROUS STEERING CONDITION( DESCRIBED BY LITERALLY HUNDREDS OF OWNERS IN BLOGS AND VARIOUS POSTINGS-JUST DO A SEARCH FOR "Z4 STE
Showing the 3 most serious of 443 complaints filed with NHTSA.
