2017 BMW 120i
Here’s a breakdown of common issues and complaints for the 2017 BMW 120i, following your specified format and focusing on accuracy and configuration details. The 2017 BMW 120i is a hatchback known for its sporty handling and relatively compact size. While it provides a premium driving experience, it also comes with potential issues that owners should be aware of. The 120i typically features a 2.0-liter turbocharged four-cylinder engine producing around 184 horsepower and 270 Nm of torque. Other engine options for the 2017 1 Series lineup (though not necessarily all available in every market as the 120i) include the 118i with a smaller displacement engine, the 125i with a higher-output 2.0-liter engine, and diesel variants like the 118d, 120d, and 125d. Transmission options are generally a 6-speed manual or an 8-speed automatic. Owners often praise the 120i’s nimble handling and fuel efficiency but sometimes find the rear seats cramped and the ride a bit firm.
Engine
2.0L Turbocharged Four-Cylinder (B48)
- Timing Chain Issues
- Description/Symptoms: Rattling noise upon startup, especially in cold weather. Engine misfires, loss of power, or complete engine failure. The timing chain can stretch or break, leading to significant engine damage.
- Solution: Replacing the timing chain, guides, and tensioner. In severe cases, a complete engine rebuild might be necessary if the chain failure caused internal damage.
- Estimated Cost to Fix: $1,500 - $4,000+
- Recalls: None Found
- Oil Leaks (Valve Cover and Oil Filter Housing)
- Description/Symptoms: Oil puddles under the car, burning oil smell, low oil level warnings. Oil may leak onto exhaust components, creating smoke.
- Solution: Replacing the valve cover gasket and/or the oil filter housing gasket.
- Estimated Cost to Fix: $200 - $800
- Recalls: None Found
Transmission
8-Speed Automatic (Aisin)
- Rough Shifting/Hesitation
- Description/Symptoms: Jerky or delayed shifts, particularly between lower gears. Hesitation when accelerating.
- Solution: Transmission fluid flush and filter replacement. In some cases, valve body replacement or transmission rebuild/replacement might be necessary.
- Estimated Cost to Fix: $300 - $4,500+
- Recalls: None Found
Suspension
- No Issues Found
Electrical
- iDrive System Malfunctions
- Description/Symptoms: Freezing, crashing, or unresponsive iDrive screen. Bluetooth connectivity issues. Navigation problems.
- Solution: Software update. If the issue persists, the iDrive control unit may need to be replaced.
- Estimated Cost to Fix: $150 - $1,200+
- Recalls: None Found
- Battery Drain
- Description/Symptoms: Car doesn’t start after sitting for a short period, frequent jump starts required.
- Solution: Diagnosing and repairing parasitic draws. Common culprits include faulty door lock actuators, alarm systems, or other aftermarket electronics. Replacing the battery if it’s old or damaged.
- Estimated Cost to Fix: $150 - $500+
- Recalls: None Found
Exterior
- No Issues Found
Interior
- Creaking/Rattling from Dashboard and Trim
- Description/Symptoms: Annoying noises coming from the dashboard, door panels, or other interior trim pieces, especially when driving on rough roads.
- Solution: Identifying the source of the noise and adding felt tape or other sound-dampening material to the contact points. Tightening loose screws or clips.
- Estimated Cost to Fix: $50 - $300+ (depends on labor if professionally addressed)
- Recalls: None Found
Summary
The 2017 BMW 120i can suffer from a range of issues, with the most potentially severe and costly ones relating to the engine (timing chain) and transmission. Electrical issues with the iDrive system and battery drain are also relatively common. Interior rattles can be a nuisance. Overall, while the car offers a sporty driving experience, potential buyers should be aware of these issues and factor in potential repair costs when considering a purchase. Addressing these issues proactively with regular maintenance can help mitigate problems.