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2018 BMW 3 Series problems, recalls and owner complaints
What the 2018 BMW 3 Series has been recalled for, how often it fails the UK MOT and what owners report, from official government data. Updated October 25, 2026.
- 0safety recalls
- 60owner complaints
- 5crash reports
- 4fire reports
- 12%fail the UK MOT
60 complaints, against an average of 123 for the other 13 BMW 3 Series model years.
Every BMW 3 Series model year with its number of owner complaints. Pick a year to compare.
What goes wrong with the 2018 BMW 3 Series?
The components named most often in the 60 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
What symptoms do 2018 BMW 3 Series owners describe?
Found by reading the text of all 60 owner complaints. Tap a symptom for the answer, a real owner quote and any related recall.
- Why does my 2018 BMW 3 Series overheat?15 owners · 25%
- Why does my 2018 BMW 3 Series stall, lose power or shut off while driving?6 owners · 10%
- Why won't my 2018 BMW 3 Series start?3 owners · 5%
- Why is the check engine light on in my 2018 BMW 3 Series?3 owners · 5%
- Why does my 2018 BMW 3 Series smell of burning or smoke?3 owners · 5%
Has the 2018 BMW 3 Series been recalled?
NHTSA lists no safety recalls for the 2018 BMW 3 Series as of October 25, 2026. Recalls can be issued at any time, so check your VIN before you rely on this.
Is the 2018 BMW 3 Series recalled in the UK or Europe?
Recalls issued by the UK's DVSA and through the EU's Safety Gate system that cover this model and build period. European models can differ from U.S. ones, and "years estimated" means the recall gave no build dates, so confirm your own car with your registration or VIN.
UK DVSATakata Driver and/or Passenger Airbag Recall (Global VINs)
Risk: Affected vehicles are already included in Safety Recalls within the markets they have previously resided in. The vehicles may be fitted with a driver and/or passenger airbag/s which if deployed may do so with excessive force causing sharp metal fragments to be released this may cause serious injury which could prove fatal to people in the vicinity.
Fix: Vehicles will have the affected airbags checked and if necessary replaced.
UK DVSAReplace the Engine Starter Motor
Risk: For affected vehicles there is a concern involving water ingress and corrosion to the starter motor for where a short circuit cannot be ruled out. It is strongly recommended to park the vehicle outdoors and not in the immediate vicinity of buildings until the repair has been carried out.
Fix: Replacement of the starter motor.
UK DVSACheck Driver’s Airbag for Conversion Takata SDI & PSDI-5
Risk: Affected vehicles may have had a retrofit or conversion of the airbag using a previously recalled airbag variant which if deployed may do so with excessive force causing sharp metal fragments to be released this may cause serious injury possibly fatal to people in the vicinity. The original factory fitment airbag for the vehicle is not affected.
Fix: Vehicles will have the airbag checked and if necessary replaced.
UK DVSAA possible degradation of the propellant tablets could lead to an over-aggressive combustion in the event the airbag is activated which…A possible degradation of the propellant tablets could lead to an over-aggressive combustion in the event the airbag is activated which may cause the inflator body to rupture.
Risk: A possible degradation of airbag propellant tablets could lead to an over-aggressive combustion in the event the airbag is activated which may cause the inflator body to rupture.
Fix: On affected vehicles the drivers airbag module will be replaced.
UK DVSAIn rare cases the starter motor can inadvertently be activated permanently presenting a risk of a thermal event
Risk: In rare cases the starter motor can inadvertently be activated permanently presenting a risk of a thermal event.
Fix: Rework the starter motor assembly.
UK DVSAUndetected EGR System leaks may cause thermal activity in the intake manifold
Risk: Undetected EGR System leaks may cause thermal activity in the intake manifold.
Fix: The engine management control unit (DDE) will be programmed with improved software incorporating the latest OBD functionality.
UK DVSAThe exhaust gas recirculation cooler may leak over time and cause thermal incident
Risk: The Exhaust Gas Recirculation cooler may leak over time and cause thermal incident.
Fix: On the affected vehicles the EGR cooler module will be replaced.
UK DVSAThe exhaust gas recirculation module could leak over time
Risk: The Exhaust Gas Recirculation (EGR) Module could leak over time and cause thermal incident.
Fix: The EGR cooler will be internally inspected with an endoscope and replaced if evidence of leaking is found.
UK DVSAThe exhaust gas recirculation cooler could leak over time
Risk: Leaking glycol coolant could create in combination with soot and oil sediments in the EGR module ignitable deposits.
Fix: The EGR cooler will be internally inspected with an endoscope and replaced if evidence of leaking is found.
UK DVSASteering tie rod can become broken in the 'kink' groove area of the rod
Risk: A steering tie rod with an earlier design configuration can become broken in the kink groove area of the rod.
Fix: Both of the steering tie rods will be replaced on the affected vehicles.
UK DVSAThe pressing force of the bearing bushing into the crankcase may be out of specification
Risk: The engine counterbalance shaft bearing bushing into the crankcase may be out of specification
Fix: Replace the engine of affected vehicles
UK DVSAExhaust gas recirculation cooler could potentially leak over time
Risk: The EGR cooler may leakpresenting a fire risk.
Fix: The EGR cooler will be replaced with an improved version.
UK DVSASoftware fault in crankshaft sensor
Risk: The affected vehicles may be equipped with a crankshaft sensor with a software fault.
Fix: On the affected vehicles the crankshaft sensor will be replaced with a new version.
UK DVSASoftware fault with crankshaft sensor
Risk: The affected vehicles may be equipped with a crankshaft sensor with a software fault. The crankshaft sensor cannot process the signal values from the crankshaft transmitter due to an improper firmware level. The firmware does not compensate sufficiently the temperature gradients and the magnetic field strength of the sensor electronic. If the crankshaft sensor cannot process the signal values from the transmitter the Digital Diesel Electronic (DDE) will notice that and change to the emergency operation mode. The emergency mode will be displayed by the check control message engine malfunction . The driver may notice a rough running engine and a reduced driving power (70%). However an engine stalling during driving conditions cannot be excluded.
Fix: On the affected vehicles the crankshaft sensor will be replaced with a new version.
UK DVSAPlug in contact cable may malfunction
Risk: It is possible that the connection between the B+ cable and the Power Distribution Box can become damaged by wear and heat which is caused by high current flow and high contact resistance. Normally this will result in a non-start situation after parking the vehicle. However it is possible that this could in extreme cases occur whilst the vehicle is in motion. The driver should be made aware of the issue by flickering of the instrument cluster (dash) or an engine mis-fire; but if the driver does not then the engine could cut-out without warning.
Fix: Recall all affected vehicles with petrol engines and replace the cable/connection with a more robust item.
EU Safety GateWater may enter the starter motor and cause damage.As a result, the engine may no longer start, or the starter motor may short-circuit or remain continuously activated. This could cause local overheating of the starter motor or thermal overload of surrounding components and lead to a vehicle fire, including when the ignition is switched off.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: 31/08/2026
EU Safety GateThe engine starter’s electrical contacts may overheat and cause the vehicle to start improperly.Continued starting attempts can intensify the overheating and ignite surrounding components, potentially leading to a vehicle fire while driving or shortly after parking.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateWater may come into contact with the starter relay and gradually cause corrosion.This could affect the electrical connection inside the relay and make the engine difficult to start. It may also result in a short circuit and could cause the starter to overheat leading to a fire when the vehicle is in motion or when it is parked with the ignition off.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe propellant in the driver airbag may deteriorate over time.If the airbags deploy, it could result in fragments from the inflator injuring the vehicle's occupants.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe propellant in the driver airbag may deteriorate over time.If the airbags deploy, it could result in fragments from the inflator injuring the vehicle's occupants.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe software-based overload protection function cannot sufficiently prevent the starter being overloaded in the event of repeated long…The software-based overload protection function cannot sufficiently prevent the starter being overloaded in the event of repeated long start-up attempts. The starter may overheat or sparks may be produced as a result of an increased current flow. This increases the risk of a fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe propellant in the driver airbag can deteriorate due to high humidity and temperature variations.In the event of an accident in which the airbag deploys, this could result in fragments from the inflator casing coming loose and injuring the vehicle’s occupants.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: 29/06/2021
EU Safety GateA vibration fatigue failure of the track rod may occur due to to an exceptional bending load.Such a failure would lead to a loss of wheel control on one side of the vehicle, increasing the risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe press-in force of the counterbalance shaft’s bearing shells may not have met the specifications, which could cause the counterbalance…The press-in force of the counterbalance shaft’s bearing shells may not have met the specifications, which could cause the counterbalance shaft to become loose. As a result, the engine could be damaged and locked in motion, increasing the risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
How often does the 2018 BMW 3 Series fail its MOT?
Why they failed: the share of failed tests with at least one fault in each area (a test can fail on several). Cars first registered in 2018, tested in Great Britain in 2023; first registration is usually, but not always, the model year. Source: DVSA anonymised MOT tests and results, Open Government Licence v3.0.
What do 2018 BMW 3 Series owners report?
12 of the 60 complaints, the most recent for the most-reported components, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
In October 2024, a "Drivetrain Malfunction" warning appeared on the dashboard (first noticed around October 8, 2024). The vehicle switched into hybrid mode and would no longer return to electric mode. Shortly after, the engine would not start at all. Mileage was approximately 46,400 miles. An authorized BMW dealer inspected the vehicle and found fault codes for the engine starter motor. After several inspections, the dealer confirmed the starter motor was faulty and replaced it with a new BMW genuine part. During the starter diagnosis, the dealer tested the auxiliary 12V battery and it passed…
The contact owns a 2018 BMW 330E. The contact stated that while driving at an undisclosed speed, the engine overheated, and the vehicle became inoperable. The check engine warning light was illuminated. The message "Drivetrain - Check Soon" was displayed. The vehicle was towed to the dealer and was diagnosed with engine failure, melted cooling hoses, and starter failure. The vehicle was repaired by the dealer under warranty and was then towed to an independent mechanic where cooling hoses were replaced. The starter failure was not addressed. The dealer was contacted about the repair of the…
While driving on the highway, my vehicle unexpectedly caught fire due to no fault of my own. Upon investigation, it appears the fire originated from a short in the rear window defroster wiring, which led to significant damage in the right rear C-pillar area, headliner, rear window, and rear deck. This event was not only hazardous to my physical safety but also deeply traumatic on a personal level. As someone who suffered severe burns as a child, experiencing a fire while operating a vehicle triggered a powerful emotional response. The trauma of the incident has had a profound impact on my…
Car just shut off when driving at 65mph and never started back up, took it in and repair was a bad fuel pump and fuel rail line causing metal shards to go through fuel tank and injectors.
Was simply driving my vehicle to work. It started overheating parked it right away before it got worse as the car alerted had it towed to a shop. The shop informed me that the motor was blown in the pistons went through the motor something with the oil the mechanic and I were looking further into this and it looks like my make and model in year had some recalls about the motor overheating in the past so I would really like this looked into as this might be a recall I’m not sure what else this could be or why this would happen with such low miles
The contact owns a 2018 BMW 330I. The contact stated that while driving at various speeds, the engine overheating message was displayed on the instrument panel with the temperature gauge rising to hot(H). The vehicle was taken to an independent mechanic where the coolant reservoir was topped off however, the failure persisted. The contact then received notification of NHTSA Campaign Number: 21V907000 (Fuel System, Diesel) which was linked to the failure. The vehicle was taken to the dealer where the recall repair was performed. The contact stated that recently the vehicle began to leak…
The contact owns a 2018 BMW 328D. The contact stated while driving 50 MPH, the vehicle started shuddering significantly. The contact was able to pull over and the check engine warning light illuminated. The vehicle was towed to the contact's workplace. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and informed the contact that there was no record of a recall on the VIN. However, the contact stated that he received notification of NHTSA Campaign Number: 21V586000 (FUEL SYSTEM, DIESEL). The vehicle remained at the…
My passenger airbag sensor malfunctioned and the repair is over two thousand dollars. The car is only 6 years old and I believe airbags should last longer than 6 years. BMW has extended warranties for airbags on some models (mine not included) for 15 years without mileage limitation. If a collision occurs, my passenger would be in extreme danger.
Coolant fluid exits from the expansion tank into the overflow leaving no fluid in the expansion tank. Then it causes and overflow/steam to burst out of the overflow tank. Then the coolant is low notification comes on which warrants to replace the coolant fluid. Took it to a few BMW dealers. They've did a flush, replace expansion tank, and water pump, also tested the pressure several times at 2 different BMW dealerships. I leave the dealership broker and with the same problem starting again within that week. This has been a constant issue which never seems to be fixed by any BMW dealer.
My 2018 bmw 320 stalls and cuts off when I come to a stop. Very dangerous. It has cut off in the middle of the road. I have checked online to see if this is a common issue. Other bmw owners have reported this same issue. There has been a recall on other bmw models with this same issue from 2014-2018 for fuel system and fuel pump that may cause this issue. Letters were sent out I. January of 2022. My 2018 bmw 320si has not been included in this recall for some odd reason. When car shuts off a warning message appears on screen. One message states “transmission not in park.” Or “drivetrain…
The contact owns a 2018 BMW 320I. The contact stated that while the vehicle was parked for a while, upon starting the vehicle, there was an abnormal fuel odor detected. The contact stated that the fuel tank ventilation warning light was illuminated. The vehicle was taken to an independent mechanic who informed the contact that the failure was due to the fuel tank ventilation and power management system. The vehicle was taken to the local dealer where it was diagnosed with a fuel system malfunction. The vehicle was not repaired. The manufacturer was contacted, and the contact was referred to…
The car's cruise control's rocker switch got stuck causing the vehicle's speed to increase continually. The rocker switch allows driver to increase or decrease speed when the cruise control is activated. The rocker switch permits speed increase in increments of 1 mph or 5 mph. If pressed up until a resistance point, the speed increases by 1 mph; if pressed beyond the resistance point, it increases by 5 mph. In my instance, I was on cruise control at 61 mph (in a 55 zone, where traffic was also moving in the 60's). I wanted to increase speed by 3-4 mph using the rocker switch to safely complete…
2018 BMW 3 Series: questions owners ask
Is the 2018 BMW 3 Series reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 60 complaints with NHTSA about the 2018 BMW 3 Series; the most common categories were engine (19, 31.7%), electrical system (15, 25%), fuel/propulsion system (10, 16.7%). There are no safety recalls listed for this model year. 5 complaints mention a crash, 4 mention a fire, 4 injuries were reported.
What are the most common problems with the 2018 BMW 3 Series?
Across 60 owner complaints filed with NHTSA, the categories mentioned most often are engine (31.7% of complaints), electrical system (25% of complaints), fuel/propulsion system (16.7% of complaints), fuel system (11.7% of complaints), diesel (10% of complaints). One complaint can name several components.
Does the 2018 BMW 3 Series have any recalls?
As of October 2026, NHTSA lists no safety recalls for the 2018 BMW 3 Series. Recalls can be issued at any time, so check your VIN at nhtsa.gov/recalls.
Why does my 2018 BMW 3 Series overheat?
15 of the 60 owner complaints NHTSA has on file for the 2018 BMW 3 Series (25%) describe the engine overheating or coolant loss. One owner wrote: "Was simply driving my vehicle to work. It started overheating parked it right away before it got worse as the car alerted had it towed to a shop." (NHTSA complaint 11660219, May 2025). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why does my 2018 BMW 3 Series stall, lose power or shut off while driving?
6 of the 60 owner complaints NHTSA has on file for the 2018 BMW 3 Series (10%) describe the engine stalling, losing power or shutting off while driving. One owner wrote: "Car just shut off when driving at 65mph and never started back up, took it in and repair was a bad fuel pump and fuel rail line causing metal shards to go through fuel tank and injectors." (NHTSA complaint 11670096, June 2025). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why won't my 2018 BMW 3 Series start?
3 of the 60 owner complaints NHTSA has on file for the 2018 BMW 3 Series (5%) describe the car failing to start. One owner wrote: "Car was in motion on a street. engine stalled. car wouldn't start. towed to bmw dealership. catastrophic high pressure fuel pump failure at approximately 7400 miles. metal shavings throughout entire fuel system." (NHTSA complaint 11256481, September 2019). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why is the check engine light on in my 2018 BMW 3 Series?
3 of the 60 owner complaints NHTSA has on file for the 2018 BMW 3 Series (5%) describe the check engine light coming on. One owner wrote: "The contact owns a 2018 BMW 330E. The contact stated that while driving at an undisclosed speed, there was an abnormal squealing sound coming from the engine compartment, with the check engine warning light illuminated." (NHTSA complaint 11648186, March 2025). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why does my 2018 BMW 3 Series smell of burning or smoke?
3 of the 60 owner complaints NHTSA has on file for the 2018 BMW 3 Series (5%) describe a burning smell or smoke. One owner wrote: "I smelt and saw smoke coming from the back of my vehicle. I pulled over on to the left side of [XXX] bound. Then, I jumped out of the car to check the truck. I didn't see anything, then i popped the hood and still did not see anything visible." (NHTSA complaint 11667410, June 2025). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Check your own 3 Series
Counts are a starting point, not a verdict: popular models collect more complaints because more of them are on the road, and NHTSA does not verify individual reports. To see whether a recall is still open on your car, enter your VIN at nhtsa.gov/recalls (U.S.) or your registration at check-vehicle-recalls.service.gov.uk (UK). Had a safety problem? Report it to NHTSA; complaints are what trigger investigations and recalls.
Data: NHTSA Office of Defects Investigation recall and complaint databases (public domain), DVSA anonymised MOT results (Open Government Licence v3.0), DVSA vehicle recalls (Open Government Licence v3.0), EU Safety Gate alerts (© European Union), retrieved October 25, 2026. Model year 2018 only; combines NHTSA's entries for 3 SERIES, 3 SERIES GT and 3 SERIES PHEV.