BMW 325i Engine Problems

Owners have filed 142 complaints about engine & cooling problems with the BMW 325i — 11% of all 325i complaints. The worst model years are 2006 (77), 2001 (23) and 2003 (16). Problems typically start around 88,000 miles. 4 related recalls have been issued.

142complaints
2006worst year
88ktypical miles
4related recalls
3crashes
19fires

Engine complaints by model year

1995200020012002200320042005200620072008200920102011423131671771
Engine complaints per model year, BMW 325i.
YearComplaintsShare of year's complaintsTypical mileage
20081100%113,000 miles
20067715%90,000 miles
200511%140,000 miles
200475%50,000 miles
2003168%71,000 miles
2002138%103,000 miles
20012315%98,000 miles
1995413%150,000 miles

Which parts fail

  • Engine
    10
  • Cooling system
    9
  • Cooling system › Fan
    7
  • Engine › Gasoline
    4
  • Exhaust system
    3
  • Exhaust system › Emission control › Catalytic convertor
    2
  • Exhaust system › Emission control › Crankcase (pcv)
    1
  • Engine › Gasoline › Belts and associated pulleys
    1

Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).

Mileage when the problem started

  • Under 25k
    1111%
  • 25k–50k
    88%
  • 50k–75k
    1818%
  • 75k–100k
    2424%
  • 100k–150k
    2626%
  • 150k+
    1414%

What owners report

The contact owns a 2006 BMW 325I. The contact received notification of NHTSA Campaign Number: 22V119000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The contact stated while driving 40 MPH, there was a significant amount of smoke coming out of the exhaust pipe and coming from underneath the hood of the vehicle. The check engine warning light was illuminated. The contact drove to the local dealer, where it was diagnosed that the PCV valve heater fuses had failed. The dealer charged a fee for the repair because the recall remedy was not available. The dealer installed an inline fuse and wiring that connected the PCV valve to the PCV valve heater. The contact stated that he received a second notice advising that the recall remedy was available, and the vehicle was taken back to the dealer, where the recall repair was performed. …

2006 325i · 132,000 miles · Dec 2022

The contact owned a 2006 BMW 325i. The contact stated while driving 60-65 MPH, the A/C became inoperable and made an abnormally loud sound. The contact then noticed an abnormal burning wiring odor, and there was smoke coming out of the A/C vents. There was no warning light illuminated. The contact stated that she attempted to pull to the side of the road, but could not safely do so. The contact continued driving and came to a complete stop at the traffic light, where the cabin became engulfed in smoke. The contact then pulled into a business parking lot and immediately exited the vehicle. The contact stated upon opening the hood, the contact noticed a reflection of the flame inside the hood. The contact ran into the business and asked for assistance. …

2006 325i · 140,000 miles · Sep 2024 · fire

Thur May 11, 2017 lower engine caught fire while driving on sunrise highway near exit 49. Vehicle began to shut down and got to the shoulder and got out and saw the smoke coming out of the engine. The fire flames were in the engine at bottom of car. A driver behind saw the fire beneath car and was trying to catch up with me to inform that flames at bottom of car . Fire was put out by the highway safety unit.

2004 325i · 49,000 miles · May 2017 · fire

Total engine failure. Air bag lights illuminated. Air condition failure. Several electrical component failures. Incident occurred at idle speed at stoplight. Currently window system failure due to automobile accident. Window were slow to roll prior to the accident. Reported to BMW denied for warranty coverage. Rear side highway speed contact airbags failed to deploy resulting in medical injury on October 11th 2013. Window now inoperable BMW still fails to acknowledge any responsibility to design flaw.

2004 325i · 46,000 miles · Jun 2009 · crash · 1 injury

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.

2003 325i · 92,000 miles · Oct 2015

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.

2003 325i · 145,000 miles · Apr 2017

The contact owns a 2002 BMW 325i. The contact stated that upon exiting the store, he observed fire emerging from the driver's side dashboard. The vehicle spontaneously combusted and was engulfed in flames. There was no warning light illuminated prior to the failure. The fire department was able to successfully extinguish the fire. No injuries were reported. The vehicle was still in the parking lot where the incident occurred. A police officer was on the scene, but no report was filed. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and the automated system confirmed there was no recall coverage. The approximate failure mileage was 168,000.

2002 325i · 168,000 miles · Nov 2025 · fire

On Tuesday June 20, 2023 at 7:20am I was awakened by my neighbor who informed me that my car was on fire. A report was done by the fire department and they did not believe it was done on purpose but something with my car. My car was totally consumed with fire nothing but ashes.

2002 325i · Jun 2023 · fire

Related recalls (4)

Engine and engine cooling › Exhaust system › Emission control › Crankcase (pcv)

NHTSA recall 19V-273 · Apr 4, 2019 · 184,505 vehicles

BMW of North America, LLC (BMW) is recalling certain 2006 525i, 525xi, 530i, 530xi, 530xi Sports Wagon, 325i, 325xi, 325xi Sports Wagon, 330i, 330xi, Z4 3.0i and Z4 3.0si vehicles. The heater for the positive crankcase ventilation (PCV) valve may short circuit.

Remedy: BMW will notify owners, and dealers will replace the PCV valve heater, free of charge. The recall began May 30, 2019. Owners may contact BMW customer service at 1-800-525-7417.

Engine and engine cooling › Cooling system › Fan

NHTSA recall 02V-138 · May 16, 2002 · 1,550 vehicles

On certain passenger vehicles, the engine auxiliary/cooling fan operation, including variable speed, is electronically controlled. Failure of the fan motor can cause the electrical circuitry of the fan control unit to overload and fail, causing the fan to stop operating.

Remedy: Dealers will replace the fan. Owner notification began September 28, 2001. This is a supplement to a recall that began during September 2001 (see recall campaign 01V206).

Engine and engine cooling › Cooling system › Fan

NHTSA recall 01V-206 · Jun 21, 2001 · 76,469 vehicles

Vehicle description: passenger vehicles. The engine auxiliary/cooling fan operation, including variable speed, is electronically controlled. Failure of the fan motor can cause the electrical circuitry of the fan control unit to overload and fail, causing the fan to stop operating.

Remedy: Dealers will replace the fan. Owner notification began September 28, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable…

Engine and engine cooling › Cooling system

NHTSA recall 98V-178 · Aug 4, 1998 · 340,000 vehicles

Vehicle description: passenger vehicles. A malfunction or failure of a coolant system component, such as a thermostat, water pump, or fan belt, can result in significantly increased coolant temperature and system pressure.

Remedy: Dealers will install a new design radiator cap to control pressure and provide greater coolant overflow in the event of overheating.

Frequently asked questions

Which BMW 325i years have engine problems?

By NHTSA complaints, the 2006 (77), 2001 (23), 2003 (16), 2002 (13) and 2004 (7) model years. Engine complaints make up 15% of all complaints for the 2006.

Is there a recall for BMW 325i engine problems?

Yes — 4 recalls, including 19V-273 (crankcase (pcv), Apr 4, 2019); 02V-138 (fan, May 16, 2002); 01V-206 (fan, Jun 21, 2001). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.

At what mileage do BMW 325i engine problems start?

Across all years, half of the complaints with a recorded mileage happened before about 88,000 miles; 19% happened before 50,000 miles.

What part fails most often?

Owners most often name the engine (10 mentions), followed by the cooling system (9).

Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.