Power Reduction FC2A82 Intake VANOS and/or FC2 A87 Exhaust VANOS Camshaft Fault: The "Service Engine Soon" (MIL) lamp is illuminated and engine power reduction is perceived. This situation can occur after driving for some time with the engine at full operating temperature. If the ignition is cycled the engine then usually performs normally.
full bulletin at NHTSA ↗2009 BMW M3 powertrain problems
moderate 24 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
24
Recalls
0
Avg fix
$2,500
When does it fail?
Of the 24 powertrain complaints filed for the 2009 BMW M3, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Powertrain accounts for 53% of every owner complaint on file for this vehicle — the dominant problem area across 4 categories tracked.
Among the 5 model years of BMW M3 in our records for powertrain problems, this one ranks #2 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
DCT Transmission: Oil Leakage Diagnosis. INFORMATION Incorrect diagnosis of DCT (Double-clutch Transmission) oil leaks may lead to unnecessary part replacements and repeat customer repair visits. When diagnosing complaints related to DCT fluid leaks, please use the attached diagnostic procedure. WARRANTY INFORMATION Not applicable. ATTACHMENTS View PDF attachment B280114_DCT_Oil_Leak_Diagnosis. [ Copyright (c)2014 BMW of North America, Inc. ] https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/16672.2.B28011... 12/24/2014
full bulletin at NHTSA ↗"Intelligent Battery Sensor Diagnosis Hints. The vehicle enters the workshop with one or more of the following complaints: * Check Control Message related to battery discharge * No-start condition * Consumer power reduction (reduced blower speed, heated seats operation, etc.) * The following fault codes may be stored in the DME a. 2E8B - Intelligent battery sensor, signal b. 2E8C - Intelligent battery sensor, function c. 2E8D - Intelligent battery sensor, signal transmission d. 2E8E - Intelligent battery sensor, communication CAUSE A faulty battery or IBS sensor (not both) The power management system and IBS in the vehicle cannot determine if the battery needs to be replaced. This is normal
full bulletin at NHTSA ↗GM6 - 6L45R: Diagnostic Procedure for Shudder or Vibration Issues. A shudder or vibration can be felt under light acceleration or when driving at constant suburban speeds. This can be most noticeable in the 1700 - 2200 engine rpm range while in 3rd through 6th gears. No faults are stored in the EGS module. CAUSE Changes in the frictional properties of the automatic transmission fluid over time can lead to momentary slipping of the torque convertor lock-up clutch.
full bulletin at NHTSA ↗N55 Engine Failsafe - FC 120308 Boost Pressure Control, Plausibility: Pressure Too Low Stored in DME Fault Memory. INFORMATION The customer complains the SES is illuminated and the engine has reduced power (engine failsafe mode).
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2009 BMW M3's dual-clutch transmission (DCT) suffers from a chronic lag between throttle application and power delivery during low-speed acceleration. Owners describe the problem this way: you slow down for a turn or intersection without stopping completely, then press the accelerator. For 1 to 2.5 seconds—sometimes longer—nothing happens. The transmission appears to be "thinking" about which gear to use. Then it abruptly engages and the car lurches forward, sometimes hard enough to trigger the stability control.
This happens almost every day for owners who drive in stop-and-go traffic. The lag is most pronounced in automatic mode but also occurs in manual mode when the driver has pre-selected second gear. Multiple owners nearly got hit by oncoming traffic when turning into intersections or merging onto highways because the car wouldn't accelerate when they needed it.
BMW dealerships confirmed the problem and reproduced it for technicians, but BMW North America told them it's "normal behavior" and there's nothing to fix. One owner noted the issue started or worsened after a December 2009 transmission software update. Before that update, the car would eventually downshift and move, but slowly; after it, sometimes the transmission won't downshift at all even with full throttle, leaving the car nearly immobilized in traffic. Owners consider this a serious safety defect that BMW is choosing to ignore.
Same BMW M3 powertrain reports on nearby years: 2008
Failure modes owners describe
DCT downshift lag and power delay during low-speed acceleration
When slowing down but not stopping (e.g., for turns, intersections, or rolling stops at 10–20 mph), the dual-clutch transmission hesitates to downshift or confirm gear selection. Upon throttle application, power delivery is delayed 1–2.5 seconds or longer before the transmission engages, then the car lurches forward abruptly. Owners report this occurs regularly in automatic mode and can be reproduced at will. The lag makes merging, turning into oncoming traffic, and lane changes dangerous—drivers lose acceleration authority exactly when they need it most.
When: Occurs on a daily to weekly basis, issue present from purchase; one owner noted the problem worsened after a December 2009 transmission software update
Symptoms owners cite: Delay of 1–2.5 seconds (or longer) between throttle application and power engagement; Transmission appears to 'decide' which gear to select even after gear is selected; Abrupt lurching or sudden power application when transmission finally engages, sometimes triggering stability control; Loss of responsiveness to manual gear selection during the lag period; Unpredictable downshift behavior—sometimes transmission downshifts automatically, sometimes does not
Recalls/TSBs owners mention: BMW North America has told dealerships and owners that this behavior is 'normal' and 'works as designed'; dealers have reproduced the issue but stated BMW will not correct it. One owner noted the problem began after a previous recall addressing engine stalling and hard-braking shift failures.
Failure to downshift from high gear under acceleration demand
When decelerating from highway speeds (50–60 mph) to low speeds (15–20 mph) without coming to a complete stop, the transmission remains in a high gear (6th or 7th) even when the driver applies full throttle. The engine cannot produce adequate torque at very low RPM, leaving the vehicle essentially immobilized. This issue emerged after a December 2009 software update; prior versions exhibited the lag symptom described above but would eventually downshift after 1–2 seconds.
When: Post–December 2009 transmission software update; occurs during low-speed maneuvers such as turns and lane changes
Symptoms owners cite: Transmission stays in 6th or 7th gear during moderate deceleration to 15–20 mph; Full throttle input does not trigger appropriate downshift; Vehicle barely accelerates despite pedal-to-floor input; Car sits motionless or nearly motionless, creating rear-end and oncoming-traffic hazards
Recalls/TSBs owners mention: No response documented; owners note the software update introduced this behavior.
Post-hard-braking acceleration delay
After hard braking from highway speed, the transmission exhibits delayed power response when throttle is reapplied. One owner reported a 2-second lag during an emergency lane-change scenario after hard braking from 70 mph to 40 mph, creating a rear-end collision risk when traffic behind expected rapid acceleration.
When: Occurs after hard braking events from elevated speeds
Symptoms owners cite: Delay of approximately 2 seconds between throttle application and power delivery after hard braking; Loss of responsiveness when acceleration is needed for lane changes or evasive maneuvers
Synthesized from 24 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 10 most recent
To whom it may concern, I am very happy to see your organization taking an interest in this issue. It is a very dangerous problem with this vehicle that bmwna is well aware of, but insists that it is "normal behavior" for my car/transmission. I brought the car into the dealer, and they were able to reproduce it, but they were told by BMW that this was "normal behavior." the problem occurs…
The dual clutch transmission (DCT) in my car, a 2009 BMW m3 routinely hesitates when pushing the accelerator in 2nd gear. The hesitation is long enough to have put me and my passengers in grave danger. In fact, it has almost caused a number of accidents when merging with highway traffic. This is unacceptable and needs to be immediately corrected before someone is seriously injured or killed. *tr
Hello, I recently purchased a 2009 BMW m3 with the DCT transmission. The transmission acts like a sequential manual shifter, allowing the driver to shift up and down at their will. These shifts happen instantaneously, within fractions of a second. Additionally, when coming to a stop, the car will downshift to 1st gear on its own, instead of relying on driver input, as a matter of convenience.…
M-DCT transmission lag. When you're turning and cars may be coming at you there is no power, causing serious endangerment. *tr
The problem occurs when you slow down- like for a turn, but do not come to a complete stop. The DCT transmission seems to have trouble figuring out what gear to select because when you step on the gas to accelerate, there is a very significant delay in the onset of power- up to 2-3 seconds. By this time, the driver is usually really digging into the throttle. The transmission finally picks a…
I was driving on a two-lane street (one-lane each direction) and as I was approaching a stoplight I turned on my left turn signal and started to move into the dedicated left-hand turn lane. As I did this I needed to downshift as I slowed down for the stopped traffic ahead at the light. When I shifted to second gear and pressed the accelerator to move into the turn lane my car would not engage…
This complaint is for a 2009 BMW m3 coupe with the dual-clutch transmission (DCT). I am experiencing major shift lag trying to reaccelerate after slowing down. Basically, the 2nd gear will fail to catch / engage when I put my foot on the gas pedal causing the car stall for a second or two. After that, the gear will engage abruptly and I will be pulled violently forward. This has resulted in…
Hello. I have a 2009 BMW m3 with the DCT transmission. I am experiencing significant delays when down shifting from one gear to a lower gear. The problem occurs when you slow down, like for a turn, but do not come to a complete stop. The DCT transmission seems to have a serious problem figuring out what gear to select because when you step on the gas to accelerate, there is a very significant…
2009 BMW m3 DCT (dual clutch transmission) exhibits a serious lag/hesitation when trying to accelerate from a rapid rolling stop. When this issue occurs in an intersection or at a stop light, a serious safety issue exists of being t-boned or slammed in the rear. When reported to BMW they claim it "works as designed". Guess someone needs to be seriously injured or killed before BMW will resolve…
Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6) dear [xxx], I am very happy to see your oranization taking an interest in this issue. It is a very dangerous problem with this vehicle that bmwna is well aware of, but insists that it is "normal behavior" for my car/transmission. I brought the car into the dealer, and they were able to reproduce it,…
Had powertrain trouble with your 2009 BMW M3?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2009 BMW M3?
It's a documented issue but not catastrophic. 24 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Across the 19 complaints that reported odometer mileage, most powertrain failures cluster between 1,500 and 5,900 miles, with the median around 2,500. A quarter of owners report trouble before 1,500; a quarter make it past 5,900. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2009/BMW/M3.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.