2003 BMW 325i Service and Repair Manual

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Covers all 2003 325i trims — Base Sedan 4-Door, Base Wagon 4-Door ·
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2003 BMW 325i 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

  • Base Sedan 4-Door
  • Base Wagon 4-Door

Engines covered

  • 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
NHTSA #03V12400031/03/2003Component: VEHICLE SPEED CONTROL

ON CERTAIN PASSENGER AND SPORT WAGON VEHICLES WITH AUTOMATIC TRANSMISSIONS, WITH THE ENGINE RUNNING, AND THE VEHICLE AT REST, AN INCREASE OF ENGINE IDLE SPEED (UP TO 1,300 RPM) MAY OCCUR.

Consequence

IF A GEAR IS SELECTED, THE DRIVER MAY FEEL AS IF THE VEHICLE IS BEING PUSHED.

Remedy

DEALERS WILL REPROGRAM THE DIGITAL ENGINE MANAGEMENT CONTROL UNIT. OWNER NOTIFICATION BEGAN MAY 5,

NHTSA #03V16000029/04/2003Component: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS

ON CERTAIN PASSENGER VEHICLES, THE WINDOW LIFTING ANTI-PINCHING DEVICE MIGHT NOT FUNCTION PROPERLY.

Consequence

OCCUPANTS COULD BE PINCHED BY A WINDOW THAT IS BEING CLOSED.

Remedy

DEALERS WILL INSPECT, AND IF NECESSARY, REPLACE THE ELECTRONIC CONTROL UNIT FOR THE WINDOW LIFTING A

NHTSA #11V43800026/08/2011Component: EXTERIOR LIGHTING:TAIL LIGHTS

BMW IS RECALLING CERTAIN MODEL YEAR 2002-2005 325I, 325XI, 330I, AND 330XI VEHICLES MANUFACTURED FROM SEPTEMBER 1, 2001, THROUGH MARCH 1, 2005. OVER TIME, RESISTANCE IN THE ELECTRICAL CONTACTS MAY CA

Consequence

INTERMITTENT LIGHT OPERATION REDUCES THE ABILITY TO WARN OTHER MOTORISTS OF THE DRIVER'S INTENTIONS.

Remedy

BMW WILL NOTIFY OWNERS, AND DEALERS WILL REPAIR THE VEHICLES FREE OF CHARGE. THE SAFETY RECALL BEGA

NHTSA #20V01800015/01/2020Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

BMW of North America, LLC (BMW) is recalling certain 2000-2005 323iT, 325iT, 325xiT, 320i, 323i, 325i, 325xi, 328i, 330i and 330xi and 2000-2006 323Ci, 325Ci, 328Ci, 330Ci, M3 Coupe, 323Cic, 325Cic, 3

Consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occupants res

Remedy

BMW will notify owners, and dealers will replace the passenger's front air bag, free of charge. The

NHTSA #13V17200002/05/2013Component: AIR BAGS

BMW is recalling certain model year 2002-2003 325i, 325xi, 330i, 330xi sedans; 325Ci and 330Ci coupes and convertibles; 325iT and 325xiT Sports Wagons; and M3 coupes and convertibles to address a safe

Consequence

In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co

Remedy

Owners are advised not to drive their vehicles until they have been repaired. BMW intends to issue i

TSB #10249437

The basic conditions for initializing the power windows are not met.

TSB #10194296

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

TSB #10184591

SERVICE ACTION - HEAD AIR BAG HOLDER RETROFIT: A rattle noise may develop from the head air bag (ITS) gas generator contacting adjacent component. This noise can be heard while driving on an uneven roadway.

TSB #10181217

E46 SULEV/PZEV: FUEL TANK DISPOSAL PROCEDURE: E46 M56 vehicles, in addition to meeting the SULEV (Super Ultra Low Emission) tailpipe emission standard, also conform to the Zero Evaporative Emissions (PZEV) regulations. In order to meet thes

TSB #10037025

BMW: PROCEDURE FOR DETERMINING AND REPLACING INCANDESCENT AND HALOGEN LIGHT BULBS UNDER WARRANTY. *RM

TSB #10036979

BMW: A NEW TECHNICAL PROCESS HAS BEEN CREATED FOR BMW TO IDENTIFY CAUSES OF STEERING COMPLAINTS WITH A WIDE RANGE OF MODELS. *RM

TSB #10033130

BMW VEHICLES: FUEL LEVEL SENSOR REPAIRS. WHERE IT IS NECESSARY TO REPLACE THE RIGHT OR THE LEFT SIDE FUEL LEVEL SENSOR DUE TO A FAILURE, THE ENTIRE PUMP AND HOUSING OR DELIVERY UNIT (SUCTION JET ASSEMBLY) DO NOT NEED TO BE REPLACED AS WELL.

TSB #10000372

ENGINE WIRING HARNESS SECTION REPLACEMENT FOR IGNITION COILS. *TT

20060411Component: ELECTRICAL SYSTEM:IGNITIONCrash reported3 injured

I WAS DRIVING THROUGH AN INTERSECTION AT APPROXIMATELY 15 MPH WHEN I WAS STRUCK IN THE DRIVER AND PASSENGER DOORS BY A VEHICLE WHO WAS RUNNING A RED LIGHT. THE OTHER DRIVER DID NOT SEE ME AND STRUCK M

20060411Component: AIR BAGSCrash reported3 injured

I WAS DRIVING THROUGH AN INTERSECTION AT APPROXIMATELY 15 MPH WHEN I WAS STRUCK IN THE DRIVER AND PASSENGER DOORS BY A VEHICLE WHO WAS RUNNING A RED LIGHT. THE OTHER DRIVER DID NOT SEE ME AND STRUCK M

20141208Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNS A 2003 BMW 325I. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 45 MPH, THE CONTACT FALL ASLEEP BEHIND THE WHEEL AND CRASHED INTO A DITCH. THE AIR BAGS FAILED TO DEPLOY. T

Showing the 3 most serious of 261 complaints filed with NHTSA.

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