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Engine & cooling

2003 BMW 3 Series Engine problems

Owners have filed 44 complaints about the 2003 BMW 3 Series's engine & cooling with NHTSA - 9% of all its complaints, most recently on January 30, 2022. They describe 0 crashes, 1 fire and 1 injury. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
44
Recalls
0
Crashes
0
Fires
1
Injuries
1
Deaths
0

Engine complaints

Engine & cooling

Coolant leak from exhaust manifold Reservoir fails All coolant hoses fail

Filed Incident Unknown or other · EngineNHTSA 11449466
Engine & cooling

The cooling fans exploded after I started my car up following coolant fluid leaking out the bottom of a hose with no warning signs showing the car over heating in the end result.

Filed Incident EngineNHTSA 11350004
Electrical systemEngine & cooling

Tl* the contact owns a 2003 bmw 325. The contact stated that the vehicle's electrical system was malfunctioning. The contact stated that certain lights were illuminating on the dashboard while other lights were not. The vehicle also failed to start. The vehicle was towed to an independent mechanic where it was awaiting diagnosis and repairs. The vin was not available. The failure mileage was 158,000.

Filed Incident Electrical system · EngineNHTSA 11144639
Engine & coolingFire

Tl* the contact owned a 2003 bmw 330xi. While the vehicle was parked at the contact's job, the front end caught fire. There were no warning indicators illuminated. The contact stated that the power steering pump was replaced days before the fire, but it was unknown if the repair contributed to the fire. There were no injuries. The fire department was called and extinguished the fire. The vehicle was destroyed, but not towed. The fire department informed the contact that once a police report was filed, they could disclose specifically where the fire originated. The dealer and manufacturer were not notified. The failure mileage was 106,000.

Filed Incident EngineNHTSA 11104782
Engine & coolingFuel system

2003 BMW 325I LOW FUEL STALL

Filed Incident Engine · Fuel / propulsion systemNHTSA 11074692
SuspensionTransmission & drivetrainEngine & cooling

STALL LIMPS

Filed Incident Suspension · Power train · EngineNHTSA 11074684
AirbagsEngine & cooling

Takata recall - call the dealer about recall and was told I would get a call when the part for the jobs was received. It's been months and have heard nothing from the dealership.

Filed Incident Air bags · EngineNHTSA 11073554
Engine & coolingFuel system

Tl* the contact owns a 2003 bmw 325i. When the contact took the vehicle to be smogged, the contact was informed that fuel was leaking from the fuel tank. The contact stated that the check engine warning indicator illuminated. The vehicle was towed to the dealer where it was diagnosed that the fuel tank needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 145,000.

Filed Incident Engine · Fuel / propulsion systemNHTSA 10985148
Engine & cooling

Tl* the contact owns a 2003 bmw 3251. The contact stated that while driving at various speed, the vehicle stalled without warning. The vehicle was able to restart. In addition, the contact noticed a strong abnormal odor from the rear of the vehicle. The vehicle was taken to a dealer where it was diagnosed that the coil cylinder needed to be repaired. The vehicle was repaired however, the failure persisted. The manufacturer was not notified of the failure. The approximate failure mileage was 92,000.

Filed Incident EngineNHTSA 10839707
Engine & cooling1 injury

Tl* the contact owns a 2003 bmw 325xi. While driving at approximately 50 mph, smoke appeared under the hood of the vehicle and filled the driver's cabin. The contact exited the vehicle and observed oil between the valve gasket and the head gasket as well as oil leaking underneath the vehicle. The vehicle was turned off. When the oil dip stick was removed, hot oil shot out onto the contact. The contact was burned, but did not receive medical attention. The vehicle was towed to an independent mechanic where it was...

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diagnosed that the pcv system failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 100,000.

Filed Incident EngineNHTSA 10725736
Electrical systemEngine & cooling

Tl* the contact owns a 2003 bmw 325xi. When the ignition was turned to the on position, the vehicle failed to start without warning. The failure recurred numerous times. The vehicle was taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 93,000.

Filed Incident Electrical system · EngineNHTSA 10695458
SuspensionEngine & cooling

Originar request car gone for repair: main issue; leak of anti-free, pump issue. Hose replacement. 2012 - Package results no included in our original requests. Suspension problem: tech found both rear coil springs broken. Note by car's owner: we when ahead and replaced both, although around 90% of my drive is in highways and my frequent passenger is only a 3 year old boy. Repair cost: us$400.00 --------------------------------------- 2015- Car brought over the dealership for "computer programming" as...

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service was not available anywhere. Recommended services by the dealership: - "replace rear coil springs with lower pads. (Both rear coil springs are broken) note: - although, we 'd like to make this repair we did not agreed to do so. - The tag price scaled to us766.28 Without tax and we've been in a tight budget. - You may try searching online for "bmw rear coil springs complain, issue or problems." There are literally hundreds of complains on bmw's rear spring fail but still not recall, ( although by bmw own admission this should be consider a serious safety issue. *Tr

Filed Incident Suspension · Engine and engine coolingNHTSA 10676843
Engine & cooling

Tl* the contact owns a 2003 bmw 325xi. The contact received notification for recall nhtsa campaign number: 14v280000 (engine and engine cooling). However, the part needed to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

Filed Incident EngineNHTSA 10662883
Engine & cooling

While driving on the freeway my engine just shut off and continues to do so every time I drive my car. So, my brakes and steering lock up because the engine shuts off. My mechanic told me there was a recall dme ms45 - fc28b2, 28aa, 28ac; internal ram faults model e46 m54 with ms45.1 From 9/00 to 7/06 e83 m54 with ms45.0/Ms45.1 From 9/03 to 9/06 e85 m54 with ms45.0 From 10/04 to 1/06 e60 m54 with ms45.1 From 9/03 to 3/05 situation customers may complain about a crank/no start or a rough start...

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situation. The "service engine soon light" or the dsc light is illuminated, and one of the 3 scenarios may apply: fc 28b2 "rpm limiting reset " is stored in the dme together with one, or more of the following faults which are caused by the 28b2: fc 28ac - "nominal torque", fc 2796 - "throttle flap: adaptation wrong", fc 27a1 - "throttle flap: start check", fc 2869 - "dme self diagnostic: ram check failed". Fc 28aa "idle speed regulator" is stored in the dme. Fc 28ac "nominal torque" is stored in the dme. Cause fault codes 28b2, 28aa and 28ac indicate an internal dme ram fault. Procedure perform the appropriate dis/gt1 test modules for the 28b2, 28aa or 28ac. Replace the dme if prompted by the dis/gt1 test module results. Important: do not replace the throttle body for the throttle faults, stored in conjunction with fc28b2, even when the test plan recommends to do so. Please can I get this repaired and covered for all the cost before I kill myself or my grandchildren... At courtesy motors chico 2520 cohasset rd. Chico,ca 95973 thank you kindly *tr

Filed Incident EngineNHTSA 10651391
SteeringElectrical systemEngine & cooling

My 2003 bmw 325it stalls unexpectedly while driving. The engine shuts down, I loose power steering, the check engine light goes on and have to pull off the road. I then put it in park and start the engine again. This started to happen in 2011 and now occurs with increasing frequency. It happened three times in 2014, including today october 11, 2014, while I was driving on a two lane road at about 40 mph. I am very worried about my personal safety and hope to have an early response from you about this critical matter. I have also written to bmw corporation. I am the original owner of the car, bought on october 22, 2002 from vob auto sales 1396 rockville pike, rockville, md 20852 usa. *Tr

Filed Incident Steering · Electrical system · EngineNHTSA 10644107
Engine & cooling

The bmw e46 3-series (1999-2006) suffers from a design flaw in the cooling system. Plastic parts in the cooling system fail as soon as 4 years and 80,000 miles from manufacture date, often failing catastrophically and causing the engine to overheat. Continued driving of the car in this situation leads to complete engine failure and loss of power (including power steering and power brakes), potentially causing an accident if it happens at highway speeds. Typical failed parts include the coolant expansion tank,...

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radiator end tanks, and water pump impellers or bearings. (Bmw came up with an improved water pump design around 2004 that is more reliable.) Cars with automatic transmissions also suffer failures of the mechanical fan clutch and the transmission cooling thermostat. Failure of the fan clutch (found only on automatic transmission cars) can cause the fan blades to break off and damage the radiator, serpentine belt, and water pump, as well as the car's hood. At higher mileages (>150,000 miles) the plastic coolant pipes often fail, causing overheating and requiring major work to replace. On my car the coolant expansion tank and radiator both failed and were replaced. The thermostat also stuck open resulting in lower gas mileage until it was replaced. Now one of my plastic coolant pipes is leaking. Bmw should be required to repair failed plastic cooling system parts on the e46 3-series with higher-quality parts designed to last at least 10 years and 100,000 miles from manufacture date. *Tr

Filed Incident EngineNHTSA 10577923
Engine & cooling

Brought in my car to local mechanic three times for oil leak (oil on driveway, oil light sensor on dashboard illuminated). In each case, I thought the problem was fixed but after two weeks the dashboard oil light came on again. I thought my mechanic was inexperienced with bmw's, so I took it to a bmw dealer and all seemed fine ($1,000 repair) until two weeks later when the oil light yet again appears on the dashboard. I am taking it back to the bmw dealer next week for a second time. I believe every possible gasket...

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has been replaced - remember it's been "repaired" for the same problem four times now, soon to be five. The problem started last year. I have place upwards of 15 quarts of oil (one quart of oil a week at times) in between mechanic repairs just to save up money to bring it back in for yet another repair. Nobody, including bmw seems to know why or where the oil leak is happening. I have spent thousands of dollars on repairs and as a consumer am getting tired of it. *Tr

Filed Incident EngineNHTSA 10494739
Engine & cooling

Engine vapor separator, hoses, dipstick, and vanos line replacement. This part separates the water vapor from the oil to remove condensation so it doesn't circulate inside the engine. The car was unsafe to drive with a faulty vapor separator and can cause engine vapor lock if it fails. The repair was about $1,400. *Tr

Filed Incident Engine and engine coolingNHTSA 10443231
Engine & cooling

The oil filter housing gasket fails on bmw cars. It is a mesh gasket between the engine and the block where the oil enters/exits the filter. The repair is about $600 and fails frequently on these cars. It causes oil to leak onto the block and gives a strong burning oil smell. Oil can accumulate on top of the engine depending on the severity of the leak. Oil blows and covers the oil filter housing and the inside of the hood with a spray of sticky oil. *Tr

Filed Incident Engine and engine coolingNHTSA 10443230
Engine & cooling

The cooling fan broke loose spontaneously and flew through the air cutting through the hood of the car and ripping through the entire engine compartment. Moments prior the hood had been open with people standing around looking at the hoses. Had the fan broke loose at this time, I would have seriously injured or killed people. *Tr

Filed Incident Engine and engine coolingNHTSA 10436090
Engine & coolingFuel systemElectrical system

While travelling on route 50 in maryland at 55mph engine cut out completely. I lost power steering and brakes. Fortunately, I was able to pull over to side of road, turn off vehicle and restart it. I brought it to the dealership where I purchased it. They cannot diagnose it without at least $1100 worth of work (they think its a transmission problem). After $1100 they state it would be an easy $200 fix or a substantial $6-8000 fix. I will be bringing it to another mechanic for second opinion. I was fortunate I was not in traffic and could pull over safely.

Filed Incident Engine and engine cooling · Fuel system, gasoline · Electrical systemNHTSA 10383861
Engine & cooling

Car ran perfectly, then I turned off, then I restarted 5 seconds later to reposition in garage. Engine then revving from 800 to 1200 rpm rhythmically, approx once per second, eml light on, brake light on, service engine light on, very hard to stop car, had anyone been close I would have hit them. Engine revving continued for 2 days, then went away on own. I then took off airbox to inspect maf, filter. Codes on 3rd day: p1632 throttle, pending: p0102, iats. There have been other incidents over the years of restarting engine to have extremely rough idle, also cleared on its own, but never surging like this. *Tr

Filed Incident Engine and engine coolingNHTSA 10378711
SteeringEngine & coolingElectrical systemAcceleration & cruise control

While driving my 2003 bmw 325ci the engine will shut off. This causes: 1. Power steering stops functioining 2. I am unable to accelerate 3. Braking takes excessively long with engine off 4. Dashboard lights up. *Tr

Filed Incident Steering · Engine and engine cooling · Electrical system · Vehicle speed controlNHTSA 10353603
Engine & coolingElectrical system

Our 2003 bmw 325i has had repeated stalling events occurring at increasing frequency. While idling at stop lights or at highway speed warning lights on the dashboard (eml, hazard and brake) light and the engine loses power, and rpm's drop. After the first occurrence, the bmw was taken to advantage midtown bmw in houston, tx for diagnosis/repair. Bmw replaced the throttle controller which they said was defective. 1-2 Months later the problem began occurring again with increasing frequency. The car stalled at a...

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traffic light with the same warning lights/symptoms. The car was returned to advantage bmw and left for several days. Initially the service staff at advantage bmw told us that the computer had failed and needed to be replaced and was under warranty. However, after discussions with the bmw corporate office, advantage bmw did not replace the computer instead stating the that the problem may be due to low voltage in the system. I asked them what would cause this since I did not want to drive the car when it intermittently could stall. Advantage kept the car a few more days and then returned it to us with the explanation that the low voltage was due to insufficient charge on the battery. I was advised to purchase a float charger. Since then the car has been kept fully charged via a ctek float charger. However last weekend the engine stalled repeatedly while my family and I were driving on interstate 10 at freeway speeds. This forced me to pull to the shoulder of the highway and drive with reduced power. After stopping the car and restarting, the engine reset and functioned again for a while. Since this time the problem has repeated itself 5 times in 1 week. I feel that bmw returning the car to me in the condition where intermittent stalling is occurring is unsafe - I stated this to advantage bmw when I had it in for service during the second instance of these problems. I have service scheduled again at advantage bmw for august 14, 2010. *Tr

Filed Incident Engine and engine cooling · Electrical systemNHTSA 10349042
Engine & cooling

The car had no symptoms leading up to the event. Car was idling in parking lot to warm up and randomly turned off. Would not turn back on and had to be towed to a shop. Found out that the crankcase ventilation system froze causing oil present in all six cylinders. System was replaced once the mechanic had access to the technical service bulletin. Mechanic was surprised to see bmw had no recalls for this design flaw since it is very dangerous. If the car had been moving with 2500-3500 rpms, much more damage would have been caused with anywhere from piston rings to engine block in addition to an accident and possibly death or injury. *Tr

Filed Incident Engine and engine coolingNHTSA 10311127

BMW 3 Series engine complaints by year

3 Series engine problems, every year

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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