2014 BMW 328I Exterior lighting Problems

Safety Concern Regarding Left Rear Brake and Turn Light Malfunction in a BMW 328i I want to outline a significant safety concern related to the electrical system. specifically involving the left rear brake and turn signal lights. For several months, intermittent warnings indicated a malfunction in these lights. On New Years, the warnings ceased to be intermittent, and the lights failed completely. Upon inspection, it was discovered that the ground pin within the wiring harness had melted off the tail light connector and fused into the harness itself. The melting of a wiring pin is a critical issue that indicates an electrical fault, likely due to excessive current or resistance, and presents a serious safety risk. The fact that a core safety feature of the vehicle—the brake and turn lights—failed completely due to this issue is a significant concern. This type of malfunction can lead to a rear-end collision, as drivers behind the vehicle would not be properly alerted to braking or turning maneuvers. This situation is not merely an inconvenience but a potential public health and safety hazard. The failure of vehicle safety components, particularly those responsible for signaling, directly increases the risk of motor vehicle accidents, which are a leading cause of injury and death. NHTSA is responsible for ensuring vehicle safety, and the failure of vehicle lighting systems due to a manufacturing or design defect is a violation of these standards and a common factor in accidents (FHA, 2025). this specific issue with my BMW 328i is not an isolated incident. Research into technical service bulletins and consumer complaints reveals that melted wiring harnesses and bulb carriers in the rear taillight assemblies are a known, recurring problem. The prevalence of this issue strongly suggests a systemic design or manufacturing flaw that puts drivers and the public at risk. As a known defect, the failure to address it could lead to significant legal and financial consequence

NHTSA ID

11684163

Incident

Feb 1, 2024

The left rear turn signal stopped working. Along with the left brake light. Currently getting the part fixed that is causing the issue. Part is being melted by something. Yes there has been warning lamps and messages.

NHTSA ID

11478281

Incident

Jul 25, 2022

Left rear brake and turn lights malfunctioning -issue not fixed after changing light bulbs. Noticed that metal pins in the connector was melted and stuck into the wiring harness. Problem affects brake light and turn signal. Melting of the the metal pin in the connector housing clearly is not a wear and tear situation but a defect in manufacturing that needs to be repaired and corrected by BMW.

NHTSA ID

11477527

Incident

Aug 1, 2022

I RECEIVED DASHBOARD WARNINGS THAT MY LEFT REAR BRAKE LIGHT AND TURN SIGNAL WERE NOT WORKING. THIS WARNINGS WERE INTERMITTENT. I CHANGED THE BULBS, BUT THAT DID NOT FIX THE PROBLEM. I THEN LOOKED AND THE CONNECTOR TO THE LIGHT HOUSING AND SAW THAT PIN #3 HAD MELTED/CORRODED. I DID SOME RESEARCH AND FOUND THAT THIS IS A COMMON PROBLEM FOR THIS CAR, AND THAT ON A PREVIOUS MODEL YEAR, THERE WAS A RECALL . THIS PROBLEM IS CAUSED BY A DESIGN DEFECT AND IS A SAFETY HAZARD AND SHOULD BE FIXED BY BMW. THE CONSUMER COST IS IN THE HIGH HUNDREDS OF DOLLARS. THERE IS A SERVICE BULLETIN THAT DESCRIBES THE PROBLEM AT: HTTPS://STATIC.NHTSA.GOV/ODI/TSBS/2017/MC-10136736-9999.PDF

NHTSA ID

11395184

Incident

Feb 5, 2021

Mileage

72,000 mi

ON FEB 20, 2020, I TOOK MY CAR TO BMW DEALERSHIP BECAUSE I HAD A LEFT REAR SIGNAL AND BRAKE MALFUNCTION. I WAS GIVEN AN ESTIMATE OF APPROXIMATELY 600.00. BASED UPON MY UNDERSTANDING OF THIS ISSUE, THIS IS A MANUFACTURER ISSUE. THE CIRCUIT BOARD, CONNECTOR, AND WIRING MUST BE REPLACED. AFTER FURTHER RESEARCH, I FOUND THAT THERE HAVE BEEN TWO RECALLS FOR THIS VERY SAME ISSUE, BUT FOR OLDER MODEL BMW'S. PLEASE REFERENCE 13V407000 AND 17V6766000. BMW ALSO ISSUED A SERVICE BULLETIN TO FIX THIS ISSUE. PLEASE REFERENCE SIB63-0611. ALSO REFERENCE 11V-438 CAMPAIGN. IT IS APPARENT THAT BMW'S ARE STILL BEING PRODUCED WITH THE GROUND WIRING ISSUE. IF YOU VISIT BIMMERFEST, YOU WILL SEE HOW MANY BMW'S FROM 2010- 2014 ARE STILL BEING EFFECTED BY THIS ISSUE. IF OLDER MODELS WERE RECALLED FOR THIS ISSUE, NEWER ONES WITH THE SAME ISSUE SHOULD ALSO BE RECALLED, AND FIXED FREE OF CHARGE. I AM CURRENTLY DRIVING A VEHICLE WITH A FAULTY LEFT REAR BRAKE LIGHT, AND LEFT REAR SIGNAL LIGHT WHICH IS A SAFETY HAZARD. I AM REQUESTING THAT BMW PAY FOR THE REPAIRS AS THIS IS A MANUFACTURING PROBLEM, NOT OPERATOR ERROR OR WEAR AND TEAR. PLEASE REFERENCE THE COMPLAINT FILED ON 3.3.20 11315965.

NHTSA ID

11376904

Incident

Feb 20, 2020

WAS GETTING WARNINGS ABOUT LEFT REAR BRAKE AND TURN LIGHTS MALFUNCTIONING FOR MONTHS THAT WOULD TURN ON AND THEN GO AWAY. ON CHRISTMAS DAY THE BRAKE LIGHT AND TURN LIGHT FOR LEFT REAR CAME ON AND STAYED ON. I WENT AND BOUGHT BULBS TO REPLACE THEM SINCE AT THAT POINT THE LIGHTS WERE NO LONGER WORKING (INSTEAD OF A WARNING THAT WOULD COME ON THEN GO RIGHT BACK OFF ONCE THE BRAKE WAS PRESSED OR LEFT TURN SIGNAL WAS USED). I TOOK THE TAIL LIGHT ASSEMBLY OFF TO REPLACE THE BULBS AND ONCE I DISCONNECTED THE WIRING HARNESS I DISCOVERED THAT THE GROUND PIN WAS MELTED OFF THE TAIL LIGHT SIDE OF THE CONNECTOR AND STUCK INTO THE WIRING HARNESSES. I HAVE NEVER MADE AN NHTSA COMPLAINT BEFORE, BUT FELT THIS WAS DANGEROUS BETWEEN THE FACT THAT 1 IT PULLED ENOUGH CURRENT TO MELT THE WIRING PIN INTO THE HARNESS AND 2 I WAS DRIVING DOWN THE ROAD AND LOST REAR BRAKE TAIL AND TURN LIGHTS ON THE LEFT SIDE.

NHTSA ID

11163977

Incident

Dec 25, 2018

Mileage

71,000 mi

FAULT IN AIRBAG ON SCREEN, COMES ON AND OFF. STARTED AROUND 61,513 MILES. EXACT MESSAGE "FAULT IN AIRBAG, BELT RENSIONER OR BELT-FORCE LIMITER. FEW DAYS LATER, CHECK ENGINE COMES ON, ALONG WITH HIGH RPM'S, WHILE STRUGGLING TO ACCELERATE. 12/10/2018 ENGINE IS EXTREMELY LOUD AND DROPPING OFF AT DEALER. ALSO BACK TAIL LIGHTS HAVE MOISTURE, BACK PASSENGER WAS REPLACED A YEAR AGO. DRIVER SIDE NOW NEEDS REPLACING.

NHTSA ID

11160759

Incident

Dec 7, 2018

Mileage

61,533 mi

THERE IS A PROBLEM WITH MY STEERING, ELECTRICAL AND LIGHTS ON MY 2014 328I. THERE IS A STEERING COLUMN PROBLEM THAT IS CAUSING MY ELECTRICAL SYSTEM AND MY BRAKE LIGHTS AND FOG LIGHTS TO RANDOMLY STOP WORKING AT TIMES WHEN I'M DRIVING MY CAR DOWN THE ROAD. I HAD IT TESTED AND THEY SAID IT'S A 6 PIN STEEEING COLUMN ISSUE. IT'S CAUSING MY CRUISE CONTROL TO MALFUNCTION, ALONG WITH MY BRAKE LIGHTS AND FOG LIGHTS. I HAVE THE DOCUMENTS FROM THE REPORT IN MY EMAIL. ALSO, THERE IS SOMETHING WRONG WITH MY DRIVE TRAIN/TIMING BELT OR POWER STEERING BECAUSE MY ENGINE MAKES A LOUD WHINING NOISE WHEN I TURN THE STEERING WHEEL A CERTAIN WAY AND ALSO IT'S LOUDER WHEN I HAVE THE AIR OR VENTS TURNED ON. I'M AFRAID ALL THE DEFECTS ARE GOING TO CAUSE ME TO HAVE AN ACCIDENT DUE TO MY LIGHTS FAILING AND SOMEONE RUNNING INTO ME OR MY STEERING GOING OUT ON ME OR MY ENGINE SHUTTING DOWN DUE TO THE NOISE AND IT FAILING. I'VE READ LOTS OF OTHER BMW OWNERS REPORTING THE SAME ISSUES ON DIFFERENT SITES ON GOOGLE. THEY NEED TO RECALL THESE THINGS AND CHECK INTO THEM MORE SERIOUSLY BEFORE SOMEONE GETS HURT.

NHTSA ID

11150884

Incident

Mar 30, 2018

Mileage

68,000 mi

I AM EXPERIENCING THE SAME EXACT PROBLEM LISTED IN NHTSA CAMPAIGN NUMBER 15V520000. I HAVE CONTACTED BOTH BMW AND NHTSA ABOUT IT BUT TTGHEY HAVE SAID MYVIN IS NOT ASSOCIATED WITH THAT PROBLEM. I HAVE SET AN APPOINTMENT WITH BMW BUT WILL HAVE TO PAY FOR THE REPAIR BECAUSE MY VIN IS NOT ASSOCIATED WITH THE RECALL.

NHTSA ID

11080676

Incident

Mar 1, 2018

TL* THE CONTACT OWNS A 2014 BMW 328I. THE CONTACT STATED THAT THE HEADLIGHTS FAILED TO ILLUMINATE THE ROAD. THE VEHICLE WAS TAKEN TO PATRICK BMW (700 E GOLF RD, SCHAUMBURG, IL 60173) WHERE IT WAS DIAGNOSED THAT THE HEADLIGHT CASING NEEDED TO BE REPLACED; HOWEVER, THERE WAS NO AVAILABLE REMEDY. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE VIN AND FAILURE MILEAGE WERE NOT AVAILABLE.

NHTSA ID

11048011

Incident

Oct 15, 2017

ONE OF THE REAR RIDE HEIGHT SENSORS CONTROLLING THE ADAPTIVE XENON HEADLIGHTS FAILED (BOLT BROKE). THIS CAUSED THE HEADLIGHTS TO AIM DOWN AT THE LIMIT OF THEIR ADJUSTMENT, EFFECTIVELY GIVING THE DRIVER ONLY 20 OR SO FEET OF VISIBILITY AT NIGHT. WE HAD TO USE THE HIGH BEAMS TO GET ANY REASONABLY VISIBILITY TO DRIVE SAFELY. *TR

NHTSA ID

10568732

Incident

Mar 7, 2014

Mileage

4,000 mi