2018 BMW M4 Service and Repair Manual
2018 BMW M4 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.
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BMW of North America, LLC (BMW) is recalling certain 2018 430i, 430i xDrive, 440i, 440i xDrive, and M4 convertible vehicles. The Emergency Locking Retractors (ELR) within the front seat belt assembli
If the vehicle has an incompatible vehicle-sensitive locking mechanism, the seat belt may not restra
BMW will notify owners, and dealers will inspect and, if necessary replace, the front seat belt asse
Protection Plate Return
A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operation when braking from low speed.
With the vehicle is on a lift and the front struts are in the extended position, there may be a cracking and orclicking type noise when turning the steering wheel left/right. See attached video V31 01 24. The sound can reoccur when the vehi
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
Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material-
After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.
Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
Exterior rear lights do not work.
Showing the 8 most recent of 45 technical service bulletins on file with NHTSA.
The fuel tank was leaking a substantial amount of fuel. Yes it is. Our safety was put at risk due to the fuel leak. Any small spark, overheating or if somebody threw a cigarette butt out of their win
What component or system failed or malfunctioned, and is it available for inspection upon request? Fuel Tank on my BMW under 50k miles started leaking after a fill up. How was your safety or the saf
Fuel tank was leaking. I brought it in to BMW of San Antonio who found the left side top area of fuel tank leaking fuel from the sealed portion. Heat caused the top of fuel tank to expand and crack. B
Showing the 3 most serious of 5 complaints filed with NHTSA.
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