2018 BMW X3 Service and Repair Manual

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Factory-Grade Data

2018 BMW X3 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

  • M40i Sport Utility 4-Door
  • xDrive30i Sport Utility 4-Door
  • xDrive30i X Line Sport Utility 4-Door
  • sDrive20i Executive Sport Utility 4-Door

Engines covered

  • 3.0L 2998CC l6 GAS DOHC Turbocharged
  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Turbocharged

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

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Vehicle Safety Data

2018 BMW X3 Recalls & Complaints

NHTSA #19V56300031/07/2019Component: SEATS

BMW of North America, LLC (BMW) is recalling certain 2018-2019 X3 sDrive30i, xDrive30i and M40i and 2019 X4 xDrive30i and M40i vehicles. The front seatback frames may have been improperly welded, all

Consequence

In the event of a crash, there is an increased risk of injury if the seatback folds forward or rearw

Remedy

BMW will notify owners, and dealers will replace the front seats, free of charge. The recall began

NHTSA #19V68400027/09/2019Component: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

BMW of North America, LLC (BMW) is recalling certain 2018 540d, 2018-2020 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 530e, 530e xDrive, X3 sDrive, X3 xDrive, X3 M40i, X3 M, and 2019-2020

Consequence

The lack of an image in the back-up camera display increases the risk of a crash.

Remedy

BMW will notify owners, and dealers will update the back-up camera software, free of charge. The re

NHTSA #20V15200018/03/2020Component: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

BMW of North America, LLC (BMW) is recalling certain 2019-2020 X4 xDrive30i and X4 M40i, and 2018-2020 X3 sDrive30i, X3 xDrive30i, X3 M40i, and X3M vehicles. The instrument panel casing may not have

Consequence

In the event of a crash necessitating air bag deployment, the air bag could damage the instrument pa

Remedy

BMW will notify owners, and dealers will replace the instrument panel casing, free of charge. The r

NHTSA #21V52100008/07/2021Component: AIR BAGS:FRONTAL

BMW of North America, LLC (BMW) is recalling certain 2018-2019 X3 sDrive30i, X3 xDrive30i, X3 M40i and 2019 X4 xDrive30i, and X4 M40i vehicles. The front passenger seat occupant classification system

Consequence

A deactivated front air bag will not deploy in the event of a crash, increasing the risk of injury.

Remedy

Dealers will replace the seat foam, which includes the occupant classification system, free of charg

TSB #11032731

The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date.

TSB #11019577

The Supplemental Restraint Systems (SRS) Front Passengers Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,

TSB #11018553

A situation may occur where the front passenger seat is not occupied. However, a fasten seat belt warning and a front passenger seat air bag deactivation message appears. If the situation is currently present, sit in the seat and move the s

TSB #11017504

The vehicle applies the brakes on its own when reversing onto an inclined roadway or driveway. This appliesonly to the situation where the Active PDC option is activated via the iDrive.

TSB #11017099

The Supplemental Restraint Systems (SRS) Front Passengers Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,

TSB #11013058

The limited warranty for the Knee Air Bag wire harness repair cable procedure for defects in materials and / or workmanship has been extended to 10 years / 120,000 miles as determined from the original first in-service / delivery date.

TSB #11012074

the NVLD limited emissionrelated warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in-service date.

TSB #11012067

The NVLD limited emission related warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in-service date.

Showing the 8 most recent of 388 technical service bulletins on file with NHTSA.

20180209Component: SERVICE BRAKESCrash reported2 injured

THE VEHICLE WAS MOVING AND WHEN I TRIED TO STOP BECAUSE THE CAR IN FRONT OF ME STOPPED. MY CAR HAD A BRAKE FAILURE AND CAUSED AN ACCIDENT. ABS AND/OR THE COLLUSION DETERRENT SYSTEM ENGAGED TO AVOID T

20180209Component: UNKNOWN OR OTHERCrash reported2 injured

THE VEHICLE WAS MOVING AND WHEN I TRIED TO STOP BECAUSE THE CAR IN FRONT OF ME STOPPED. MY CAR HAD A BRAKE FAILURE AND CAUSED AN ACCIDENT. ABS AND/OR THE COLLUSION DETERRENT SYSTEM ENGAGED TO AVOID T

20191222Component: SERVICE BRAKESCrash reported

I WAS PARKING WHEN I TOTALLY LOST CONTROL OF MY CAR. I COULD NOT STEER IT AND I COULD NOT BREAK. I WENT LEFT WHILE I WAS ATTEMPTING TO BRAKE BUT I HAD NO BRAKES. I ATTEMPTED TO GO STRAIGHT AND HIT ON

20191222Component: STEERINGCrash reported

I WAS PARKING WHEN I TOTALLY LOST CONTROL OF MY CAR. I COULD NOT STEER IT AND I COULD NOT BREAK. I WENT LEFT WHILE I WAS ATTEMPTING TO BRAKE BUT I HAD NO BRAKES. I ATTEMPTED TO GO STRAIGHT AND HIT ON

20191222Component: UNKNOWN OR OTHERCrash reported

I WAS PARKING WHEN I TOTALLY LOST CONTROL OF MY CAR. I COULD NOT STEER IT AND I COULD NOT BREAK. I WENT LEFT WHILE I WAS ATTEMPTING TO BRAKE BUT I HAD NO BRAKES. I ATTEMPTED TO GO STRAIGHT AND HIT ON

Showing the 5 most serious of 102 complaints filed with NHTSA.

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