2004 BMW 3 Series Problems

What owners report

Owners of the 2004 BMW 3 Series most often write about the optional bi-xenon headlights, which owners say gradually lose output as the reflective material inside the projector bowls degrades, so night driving becomes difficult. Rear lamp and connector faults, along with locks that intermittently refuse to unlock, are also recurring complaints, and many airbag filings concern wait times for recall parts rather than a new failure.

1. 1
   Exterior lighting

   Xenon headlights dim as reflectors degrade

   • 29 complaints (38%)
   • median 89,000 mi at 8.3 yrs old (19 state mileage)
   • 1 mention a crash, fire or injury
   • owner-quoted repair $1,200 (median of 7 quotes)
   • filed 2009–2017

   Owners of cars with the optional bi-xenon headlights report that light output falls off gradually until low beams barely illuminate the road, and several say they drive with high beams or fog lights to see. Complaints describe scorched or burnt projector bowls inside the housing, with the reflective coating gone; replacing bulbs, polishing or replacing the lens covers did not restore output. According to the complaints, dealers treated the assemblies as wear items or quoted whole new headlight units, and in some cases the same type of assembly was the only replacement offered. Reported across a wide mileage range, from about 30,000 to 156,000 miles, and described as a slow decline over years of use.

   2 related service bulletins

   What to check: At night, compare low-beam output against a similar car or a wall, and look into the projector for brown or scorched bowls; ask whether the headlight assemblies have been replaced and with what.

   2 excerpts from owner complaints in NHTSA records

   “My zkw headlights do not reflect light anymore. Bmw offer no replacement reflector bowls for the headlight, so no fix is available except replacing the headlight assembly with the same faulty assembly from the same manufacturer. Headlights produce too much heat and melt the reflectors deeming them useless and an extreme danger. Recall needed for extreme safety reasons. I can't drive my car at night anymore.”

   NHTSA complaint #10653206, filed 2014-11, 110,000 miles

   “As reported by other owners, the bi-xenon headlights no longer light up the road. It is a safety hazard and is a known issue with headlights manufactured by zkw on 2003-2005 Bmw 330 models. The reflector bowls on these units burn out over time and reduce the headlights ability to reflect light. Driving at night is literally no better with the headlights on or off. I have to rely on my fog lights just to see anything. Please look into this safety issue as it is wide-spread. …”

   NHTSA complaint #10628093, filed 2014-08, 45,000 miles
2. 2
   Air bags

   Airbag warning light and recall part waits

   • 13 complaints (17%)
   • median 111,000 mi at 11.8 yrs old (3 state mileage, few)
   • filed 2013–2017

   Many filings concern the passenger airbag status light coming on with no one in the seat, or owners waiting for airbag recall parts that dealers said were unavailable. Owners describe being told their vehicle was not covered, or being placed on a list and not contacted when parts arrived. A few report unexpected airbag deployment at low speed over a small bump. Filings span a wide mileage range, with many not stating mileage; several are from 2014 to 2017 and concern recall notices from 2014 and 2015.

   3 related service bulletins

   What to check: Check that the airbag warning and passenger status lamps behave normally, and confirm with a dealer whether any open airbag recall applies to the specific vehicle by VIN.

   2 excerpts from owner complaints in NHTSA records

   “Takata recall: in july, 2015 I received a letter from Bmw (recall notice 15v-318) stating that my driver side air bag should be replaced, but that there was no remedy available and I would be contacted when one is. I've had a couple of service appointments at my local dealership (perillo Bmw in chicago) and each time asked if there was any update on resolution and each time I was either referred to Bmw's corporate customer service or politely told that there was no update. …”

   NHTSA complaint #10882125, filed 2016-07, 80,000 miles

   “Takata recall. This complaint is due to the slow response of nalley Bmw in decatur georgia to replace my airbag. I received my recall letter and immediately called the Bmw dealer on sept 7th. I was told that parts were ordered and I would be called when they arrived. By sept 16th I had heard nothing and called again. Nalley said they had no record of my having ordered parts. I was transferred to the parts department where no one answered the phone. So I called Bmw national customer relations. …”

   NHTSA complaint #10910699, filed 2016-09, 112,000 miles
3. 3
   Exterior lighting

   Tail light and connector failures

   • 8 complaints (10%)
   • median 96,000 mi at 7.5 yrs old (5 state mileage, few)
   • filed 2010–2014

   Complaints describe rear turn signals or brake lights that fail intermittently, sometimes with a bulb-out warning on the dash, and in some cases melted wiring or a burnt connector plug at the light housing. Owners report that the problem returned after bulb replacement because the fault is in the connector or ground wiring rather than the bulb. Some say the dealer quoted a repair, and a few note their car was not covered by a related campaign. Typically reported between roughly 40,000 and 130,000 miles, with failures described as intermittent at first.

   4 related service bulletins

   What to check: Check that every rear lamp works and inspect the connector plugs and wiring at the tail light housings for heat damage or melting; ask whether the connector repair has been done.

   2 excerpts from owner complaints in NHTSA records

   “My 2004 Bmw 325ci recently developed a problem with the left rear tail light (turn signal and brake light) intermitently does not work. A left tail light failure also shows on the on board diagnostic display. The problem is intermitent and with no warning. I did some research and found there was a Bmw recall for model years 2001 thru 2005 for this exact problem. The recall specifies 325 sedan models, my model is a 325ci (coupe). I called Bmw north america and they say my particular model is not covered by the recall. …”

   NHTSA complaint #10561969, filed 2014-01, 76,000 miles

   “The rear turn signals repeatedly fail. The wiring is melted. While this issue is addressed in NHTSA campaign id number: 11v438000, my car is not included in the recall. The recall should be expanded to include more cars. I called Bmw customer service. They are indifferent to this issue and completely unconcerned about the safety issues created by their negligent manufacturing. Thanks,”

   NHTSA complaint #10435659, filed 2011-11
4. 4
   Electrical system

   Doors will not unlock (central locking)

   • 5 complaints (6%)
   • median 42,000 mi at 6.9 yrs old (5 state mileage, few)
   • filed 2010–2015

   Owners report that the central locking or key fob stops unlocking one or more doors intermittently, sometimes leaving passengers unable to open the door from inside until it eventually releases. Complaints describe repeated attempts with the remote and the console button, and some say the fault comes back after repair. According to the complaints, dealers diagnosed a failed body control module and quoted a replacement, and some owners were told no fault could be found. Mostly reported between about 40,000 and 94,000 miles, with some owners noting it is worse in warmer months.

   2 related service bulletins

   What to check: Lock and unlock all doors repeatedly with the fob and the interior button, and try each interior handle; ask whether the central locking module has been replaced.

   2 excerpts from owner complaints in NHTSA records

   “Door locks intermittently will not unlock with switch or remotes. Central locking does not work even when using the key fob. My kids and I have been trapped in the car on several occasions for up to 10 minutes. This is a serious risk to my life and the life of others on the road. Bmw refuses to fix this problem. I have video of me trapped in the car. I addressed his problem with Bmw before my warranty was up but they state since the technicians could not identity any problem it's not covered. …”

   NHTSA complaint #10493675, filed 2013-01, 80,450 miles

   “The power door lock on passenger side cannot be unlocked either via remote or inside button. Worse, often when this happens, the door cannot be opened even by pulling on the handle from the inside! A passenger cannot get out of the car via the door. Furthermore, repeatedly attempts to have this fixed all fail within a short time.”

   NHTSA complaint #10780159, filed 2015-10, 42,000 miles

Buying note. On a 2004 3 Series, check the headlights at night and inspect the rear lamp connectors and door locks before buying, since those come up repeatedly in owner complaints; confirm any open airbag recall by VIN and budget for age-related electrical and battery work.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.