2018 BMW X4 Service and Repair Manual
2018 BMW X4 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
- xDrive35i M Sport Sport Utility 4-Door
- xDrive28i Sport Utility 4-Door
- xDrive28i X Line Sport Utility 4-Door
Engines covered
- 3.0L 2979CC l6 GAS DOHC Turbocharged
- 2.0L 1997CC 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
BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i
An electrical short increases the risk of a fire.
Dealers will inspect and replace the water pump and plug connector as necessary, and install a prote
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.
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.
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.
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.
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.
EVAP SYSTEM PURGE (VENT) VALVE EXT LTD WTY (ELW) 15/150
While driving the vehicle on normal roads at10mph and above, a "cracking" sound from the top of the B-pillar(s) is heard.
One or more of the LED daytime running lights are dim or discolored.
Showing the 8 most recent of 58 technical service bulletins on file with NHTSA.
Unknown: Dealership replaced my brakes however they werenât working properly I reported it 3 times BMW said it was common about 2 weeks later I was involved in a car accident where the brakes failed
The contact owns a 2018 BMW X4. The contact stated that when she would stop the vehicle for a traffic signal, the vehicle would independently shift into park (P). The contact stated that the failure h
We heard a whining sound under the hood on November 1st, 2025. Prior to noticing this noise, there were no warming lamps or messages appearing. Following a short drive we smelled burning in the garage
Showing the 3 most serious of 19 complaints filed with NHTSA.
