The seat belt sensor will continuous goes off even though the seat belts are engaged/fastened. I have reported this issue to the dealership multiple times with no resolution.
The worst 2017 BMW 330I problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine23
- Electrical4
- Seat belts4
- Acceleration2
- Driver assistance2
- Transmission2
- Airbags1
- Brakes1
- Fuel system1
- Lights1
- Seats1
- Steering1
- Visibility1
Specific symptoms reported on the 2017 BMW 330I
Recalls
No recalls on record for this model year.
Defect investigations
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
EA21002
Technical service bulletins for the 2017 BMW 330I 310
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been...
- For this vehicle, the EVAP systems purge (vent) valve limited warranty for defects in materials or...
- The basic conditions for initializing the power windows are not met.
- The electrical system of BMW vehicles has been subject to an ongoing development process over the last few...
- Diesel fuel injectors: ltd wty extension to 10 years/120,000 miles
- Pressure control valve (pcv) extended ltd wty 15 years/150,000 miles
- Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
- After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes...
- Exterior rear lights do not work.
- The 3G network in the US has been shut down
2017 BMW 330I fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.0L 4‑cyl | RWD | 21-23 | 32-34 | 25-27 |
What 2017 BMW 330I owners say
Most recent owner complaints, unedited.
The defect has left the driver stranded several times and required multiple tows due to the vehicle becoming unsafe and inoperable. On one occasion, the vehicle broke down after a 2.5-hour drive away from home and had to be towed because the overheating and coolant leak issue made it unsafe to continue driving. The vehicle is operated in a region where summer temperatures frequently exceed 115°F, which significantly increases the safety risk associated with repeated overheating and roadside disablement. The issue remains unresolved and continues to pose an ongoing safety risk due to sudden overheating and loss of reliable vehicle operation. There are multiple dates started mid 2023 through today 4-6-2026 , still overheating after failed attempts
The cooling system is continually failing prematurely. Parts that should be lifetime are needing to be repaired below 100K miles. I have had to repair the following cooling system related items that should be under recall and are not Oil filter housing Thermostat housing Turbo coolant lines Water neck the cost of repairs is significant and BMW is denying responsibility for the premature failures.
The Oil Filter Housing (OFH), the Coolant/Water Pump, and other plastic lines for the cooling systems are well known to fail with this engine early in their lifetime. My service advisor at BMW said, "these are very common issues for a B46 engine.". The Motor Mounts also are extremely prone to failure due to the use of the Auto Start/Stop feature. This has also been noted by my service advisor at BMW. They commented, "these cars come in often before ever hitting 20k miles and needing replacement. I recommend never using the Auto Start/Stop feature ever again.'
The contact owns a 2017 BMW 330I. The contact stated that the rear driver’s side taillight cover loosened and detached but was able to be put back in place. Upon investigation, the contact discovered the federal safety agency Campaign Number: 19V074000 (Exterior Lighting); which the contact linked to the failure. The dealer was notified of the failure and the contact was informed that there were no recalls on the VIN related to the failure. The vehicle was not repaired. The dealer referred to the contact to the federal safety agency Hotline to report the failure. The manufacturer was not notified of the failure. The failure mileage was unknown.
My BMW has had multiple repairs (3 incidents - 2 times repaired by BMW and 1 time repaired by a national mechanic garage) to the coolant system since I purchased it in 2018. BMW have verified the leaking coolant as well as the independent garage. Currently, the coolant system has another on going issue where it is still leaking and it's still unable to be fixed. This coolant issue has had catastrophic failures at times and more recently it has thrown a major engine overheating warning that has impacted the safety of my wife, kids and I as well as other individuals on the road as I have had to pull over quickly and turn the car off to allow the engine to cool down. I've had to drive the car at a reduce speed and acceleration which has frustrated many drivers causing them to over take me dangerously. Additionally, I've burnt my hand from opening the coolant expansion tank to add coolant on multiple occasions.
I noticed coolant leaking from under the vehicle. The message to add coolant was displayed. The vehicle was taken to an independent mechanic where the engine was inspected, and was notified of stains of coolant coming from the head gasket. The contact was informed that the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. I believe this is failure is related to the federal safety agency Campaign Number: Recall 18V755000, October ,24 2018, My car has only 73000 Miles
The contact owns a 2017 BMW 330I. The contact stated that while the vehicle was parked, upon inspecting the vehicle, the contact noticed coolant leaking from under the vehicle. The message to add coolant was displayed. The vehicle was taken to an independent mechanic where the engine was inspected, and the contact became aware of stains of coolant coming from the head gasket. The contact was informed that the head gasket needed to be replaced. The vehicle was not repaired. The contact stated there was a software update performed on the rearview camera. The manufacturer was notified of the failure but offered no assistance. The contact related the failure to the federal safety agency Campaign Number: 18V755000 (ENGINE AND ENGINE COOLING); however, the VIN was not included in the recall. The contact was referred to the federal safety agency Hotline for assistance. The failure mileage was 73,000.
The contact owns a 2017 BMW 330I. The contact stated while driving at an undisclosed speed, the low coolant warning light illuminated. The vehicle was taken to an independent mechanic, who determined that the vehicle was consuming and excessive amount of coolant. The contact stated that the coolant reservoir was empty after being refilled the previous morning. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 18V755000 (Engine and Engine Cooling); the VIN was included, and the vehicle was already repaired under the recall. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the federal safety agency Hotline for assistance. The failure mileage was unknown.
Oil filter housing and or oil cooler failed. Leaking internally and externally. May cause fluid to leak on to hot engine and cause potential fire or short circuit wiring.
Compare the 2017 BMW 330I
Other model years
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Questions about the 2017 BMW 330I
Is the 2017 BMW 330I reliable?
Owners have filed 42 complaints about the 2017 BMW 330I, close to a typical 330I model year.
What is the 2017 BMW 330I year score?
The 2017 BMW 330I scores 75 out of 100 (average). The score compares it with the other model years of the BMW 330I: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2017 BMW 330I?
Engine and cooling, with 23 complaints. Next is electrical (4).
How many recalls does the 2017 BMW 330I have?
No recalls on record.
What year does the BMW 330I have bad engine?
The BMW 330I model years with the most engine complaints are 2006 (26 complaints), 2017 (23 complaints) and 2020 (20 complaints).
What gas mileage does the 2017 BMW 330I get?
Official estimates for the 2017 BMW 330I range from 25 to 27 mpg combined. The most efficient version (2.0L 4-cyl, RWD) gets 21-23 city and 32-34 highway.
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