BMW 328I knocking problems

Filed Sep 3, 2026 · Engine · WA

I took my car to the Tigard Oregon bmw dealership for my three recalls that were needing addressed. I turned my car over to them in good working order. After picking it up after the repairs my service engine light came on. My car started knocking and rattling louder and louder. I returned to the dealership and requested they fix the issue. After a few days they contacted my and told me it needs a new engine. They say they checked over their work and the problem isn't their fault. I disagree. They say they found metal shavings in my oil. They did an oil change a week earlier and mentioned no metal in my oil.

Filed Jul 17, 2026 · Electrical, Engine · NV

The engine intake tract, PCV infrastructure, and the main lower engine wiring harness loom failed due to improper reassembly during Federal Safety Recall 24V‑608. The technician left the main intake coupler completely loose and spinning freely by hand, and left the MAF sensor crooked. This introduced a massive unmetered air leak and severe vacuum leaks. Simultaneously, the technician over-tensioned, pinched, or damaged the Cylinder 2 wiring loom components. The vehicle is currently parked dead and untouched at my residence, and it is 100% available for immediate federal or corporate inspection.The unsealed intake tract and damaged wiring harness caused the engine to run dangerously lean at highway speeds. This resulted in sudden, violent engine shuttering, rapid deceleration, severe mechanical engine knocking, and a terminal Cylinder 2 misfire. This component failure caused an immediate loss of vehicle propulsion on a high-speed public highway, creating an extreme risk of a high-speed collision and leaving the vehicle completely disabled. The issue has not yet been physically inspected by a third party because the vehicle is unsafe to drive. I went to the originating dealer (BMW of Henderson) in person on July 16, 2026, to coordinate a safety re-inspection under an active BMW North America Corporate Case. Dealership management actively obstructed the safety process, gave technically impossible justifications regarding the recall execution, and flatly refused to dispatch a complimentary flatbed tow. They attempted to hold the safety re-inspection hostage behind out-of-pocket customer towing costs and upfront retail diagnostic fees. There were 0 mechanical warnings or symptoms prior to the recall. The vehicle was meticulously maintained with 5,000-mile oil changes and a perfectly tight timing chain. The severe drivetrain malfunction warnings, violent front-end shaking, and terminal engine knocking appeared after picking up my car.

Filed Mar 21, 2026 · Engine · ND

So, the N20 2.0L motors are known to have prematurely failing plastic chain guides and a weak hydraulic tensioner, leading to whine, rattles, and potential engine failure. BMW improved the issue in the 2015 or newer models which have more robust timing chain guides and Tensioners. The fix involves replacing the entire timing chain assembly (guides, chain, tensioner) with updated, more durable parts and cleaning the oil pump/pan of debris. Which the 2015 and newer models have this fix. 2014 and older models with the N20 suffer from failing parts due to a design flaw. Since the The BMW N20 engine (2012–early 2015 328i) does suffer from premature timing chain guide failure, leading to oil pump failure and catastrophic engine failure. There should be a recall with these older models. And there should be a fix for them. BMW design this motor and the only remedy the issue in the newer models 2015 or newer. So anyone that doesn't have a 2015. Their N20 is basically a ticking time bomb.

Filed Oct 9, 2024 · Engine · 176,000 miles · GA

The contact owns a 2014 BMW 328I. The contact stated that the vehicle was difficult to start and was idling rough. Additionally, the contact stated that while starting the vehicle and while driving at various speeds, there was an abnormal knocking sound coming from the engine. The low oil pressure warning light was illuminated. The vehicle was taken to an unknown dealer and to several independent mechanics, where the valve cover gasket, the serpentine belt, the oil pressure sensor, and other unknown parts were replaced; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed that the timing chain, the oil pump, the drive chain, and the oil pump had failed and needed to be replaced. The contact related the failure to TSB Number: SIB 11 03 17; however, the dealer informed the contact that the vehicle was not covered. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the dealer and to the federal safety agency Hotline for assistance. The failure mileage was approximately 176,000.

Filed Jun 20, 2024 · Engine · 103,000 miles · NV

The contact owns a 2011 BMW 328I. The contact stated while driving at various speeds and depressing the accelerator pedal, the vehicle hesitated to respond. Additionally, the contact stated that the vehicle made an abnormal knocking sound while driving. The check engine warning light, the traction control warning light, and other unknown warning lights were illuminated. The vehicle was taken to an independent mechanic, where the VANOS bolts were replaced twice; however, the OBD scanner indicated diagnostic test codes related to the VANOS bolts. The vehicle was temporarily repaired. The contact received notification of the federal safety agency Campaign Number: 23V707000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 103,000. VIN tool confirms parts not available.

Filed Feb 13, 2024 · Brakes, Steering · IL · crash

I got up to leave my house and entered my vehicle and proceeded to start my car. I started it and moved the gear shift so that I can reverse out my driveway. With my foot on the brake I attempted to put the car in reverse and soon as I took the car out of park, my car accelerated forward and the brakes completely locked up. It accelerated so hard and fast that it broke through my gate and knocked down my other gate. I turned the car off when it accelerated because the brakes locked and even with the power off the car accelerated. There is no possible way my foot was on the gas because I was pulled in my driveway facing my house and had that been the case I would’ve went backwards not forward. The very second I took the car out of park it accelerated forward and would not stop. Luckily I thought to turn it off as a last resort and even then it continued to accelerate and knock down my second gate as well. I was very scared and as a safety precaution, I will no longer drive the car. Had I been anywhere but home this could’ve caused serious injury to myself or others and had it been parked a few feet over it would’ve accelerated into my living room where my son was sitting.

Filed Apr 21, 2022 · Electrical, Engine · MO

My car was brought in to the BMW dealership for knocking noises, a fire smell, and shaking. I was told my car could not be repaired due to engine failure.l was informed that replacing the engine would cost me more than the vehicle is worth. He recommended l sell it for parts. Currently there are no lights/ indicators present on my dash board indicating that something is even wrong . l did not receive any warnings before the shaking and /or during the knocking . On the other hand; I have made multiple complaints to my mechanic about smelling fire or burnt rubber for the past six months and he thought it was coming from the radiator and he replaced it.. The smell did not improve .. he was still in the process of guessing what it could be . I guess we know now. The safety of my family has been at risk for months, knowing that burnt rubber smell could have evolved into something major at anytime . My life was in danger when the car began shaking while driving on the highway on my way to work . The car has been parked for a week now due to me not knowing what to do with a dead 10 years young vehicle. I have not called the police and my insurance company states they don’t cover mechanical issues. My car has only been viewed by a dealership and my mechanic shop. To make my situation worse , I am currently working overseas in Germany on orders and l don’t know what to do with this car. I don’t live a lifestyle where I can afford to purchase a vehicle with the intentions of it lasting 10 years or less . My car is definitely available for inspection upon request.. if someone could advise me on whom to contact , that would be great . The set back this has caused me is unrealistic. If there is anything I can do as a costumer please let me know .l am a healthcare worker .l am very reliant upon my vehicle . I need my car.

Filed Dec 8, 2021 · Engine · VA

Timing Chain Guide failure after 75k miles resulting in catastrophic engine damage. I was in heavy traffic at 60 mph when the engine began to knock loudly, just as quick the drivetrain malfunction warning came on along with the oil pressure warning light. Immediately lost power & the vehicle went into “Limp Mode” and within a 3 seconds it completely shut down causing a plethora of problems that made it a nightmare to get off of this busy highway. Vehicles were narrowly missing me & blowing their horns while I was trying to coast off of the side of the roadway. All this happened in about 20 to 25 seconds.The car has been in the garage for 6 months & a confirmation was made on the timing chain guide failure. The inlet screen to the oil pump has pieces of the broken guides stuck in it which restricted the oil flow to the entire engine. Both front & rear crankshaft bearings were seized up & spun inside the engine block. Upon inspection of the top end of the engine, indicators suggesting extreme heat resulting in damage to both camshafts, connecting rods, rocker spring retainers, rocker arms, valves, & piston rings. The VIN number of the vehicle is amongst the ones included in the Class Action Lawsuit against BMW regarding the malfunction of the timing chain guides. I still haven’t heard back from BMW’s representatives to date. My vehicle needs fixed whether it’s beyond the mileage of the extended warranty or not!!

Filed Apr 18, 2021 · Engine · 115,000 miles · NV

Timing chain failure, engine knocking, vanos bolt failure

Filed Dec 18, 2019 · Steering · 49,100 miles · NY

The car now has approximately 50,000 miles on it. The steering wheel has increasingly deteriorated, becoming very sloppy and eventually LED to a knock in the steering wheel rack. It is well documented in hundreds of online chats, videos and forums, that bmw has been changing the entire rack. They have recently released a kit with and upgraded bushing to repair the rack, thus acknowledging a common issue due to a failing thrust arm bushing. The original bushing is plastic and smooth, the new bushing is metal and rigid.