1998 BMW 540i Service and Repair Manual

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Fits the 1998 540i — Base Sedan 4-Door ·
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1998 BMW 540i 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

Engines covered

  • 4.4L 4398CC V8 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 #98V14200022/06/1998Component: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE DIFFERENTIAL PINION SHAFT WITHIN THE DIFFERENTIAL CASE ASSEMBLY WAS PRODUCED WITHOUT THE APPROPRIATE SURFACE HARDENING. THIS CAN RESULT IN THE SHAFT EXP

Consequence

THIS CONDITION WILL CAUSE A NOISE FROM THE DIFFERENTIAL AND, ULTIMATELY, FAILURE OF THE SHAFT AND LO

Remedy

DEALERS WILL REPLACE THE ENTIRE DIFFERENTIAL ASSEMBLY.

TSB #10249437

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

TSB #606694

INFORMATION ON PROGRAMMING ME7.2 ENGINE CONTROL MODULES WITH CD 18. *TT

TSB #604628

SUBJECT PERTAINING TO DSP AMPLIFIER SWITCHING TO

TSB #600874

INFORMATION ON EVAPORATIVE EMISSION CONTROL AND FUEL FILLER CAP / FILLER DOOR LABELS. *YC

TSB #600877

ENGINE CRANKS, BUT WILL NOT START. *YC

TSB #600527

SITUATION WITH THE TENSION ROD TEST GAUGE. *YC

TSB #600531

INFORMATION AND PROCEDURES ON THE GARAGE DOOR OPENER. *YC

TSB #600431

CONDITION WITH BRAKE PAD WARNING STAYS ILLUMINATED AFTER BRAKE PAD REPLACEMENT. *YC

Showing the 8 most recent of 12 technical service bulletins on file with NHTSA.

20210521Component: AIR BAGS1 injured

While stopped (engine still running) at a gas station, the driver side airbag and driver side side curtain airbag both went off. The battery disconnect feature was also triggered. Very lucky I wasn't

20050127Component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

WHITE STEAM WAS COMING FROM UNDER THE HOOD ONTO THE FRONT WINDSHIELD. THE STEAM WAS FOGGING THE WINDSHIELD, AND CAUSING POOR VISIBILITY WHILE DRIVING 50-55 MPH. CONSUMER WAS ABLE TO GET THE VEHICLE TO

20050106Component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

2ND CATASTROPHIC RADIATOR FAILURE. NOT A LEAK, THE NECK BREAKS OFF CAUSING IMMEDIATE LOSS OF COOLING. 1ST RADIATOR AT 45K, 2ND AT 92K. BASED ON OTHER'S EXPERIENCES, THIS IS VERY COMMON FOR THIS MODEL

Showing the 3 most serious of 28 complaints filed with NHTSA.

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