BMW 3 Series 2014 to 2019: common problems and what to know

TL;DR

The 2014 to 2019 BMW 3 Series is a popular choice, but it has common problems such as timing chain issues, oil leaks, and electrical faults. The 2017 model is generally regarded as the most reliable option in this range.

Key facts callout

• Common issues: Timing chain failures, oil filter housing leaks, and electrical problems.
• Most reliable year: Generally, the 2017 model is regarded as one of the most reliable in this range.
• MOT failures: Look out for issues with suspension components and emissions.
• Owner sentiment: Many owners appreciate the driving experience but report frustrations with reliability.

Engine and gearbox

The 2014 to 2019 BMW 3 Series features a variety of engines, including petrol, diesel, and hybrid options. The N20 and N26 engines, especially in the 320i and 328i models, are known for timing chain issues that can lead to serious engine damage. Additionally, the oil filter housing gasket is prone to leaking, which can result in oil loss and potential engine damage if not addressed. Checking for oil leaks during a pre-purchase inspection is essential.

The 8-speed automatic gearbox is generally well-regarded for its smooth shifts and good fuel efficiency. However, some owners have reported issues with the gearbox not responding correctly, particularly in earlier models.

Electrics and electronics

Electrical problems are a frequent concern in the 2014 to 2019 BMW 3 Series. Owners have reported issues with the battery and starter motor, with some experiencing difficulty starting the car. Listening for unusual sounds when starting is advisable, as a sluggish starter can indicate potential problems.

The infotainment system can also be temperamental, with occasional glitches reported. Some owners have noted that the navigation system may freeze or fail to respond. Testing all electronic features thoroughly during a test drive is recommended.

Body and suspension

The bodywork of the BMW 3 Series is generally well-built, but some models have reported rust issues, particularly around the wheel arches. Regular maintenance and checks can help identify early signs of corrosion.

Suspension problems are also common, with many owners experiencing squeaks and rattles. These noises often stem from worn shock absorbers or suspension bushes. Having the suspension inspected is advisable, especially if the car has been used on rough roads.

What people are asking

Which BMW 3 Series to stay away from? The 2014 and 2015 models are often mentioned as ones to avoid due to their reliability issues, particularly with the timing chain and electrical systems.

What are the common problems with the 2014 BMW 3 Series? Common problems include timing chain failures, oil leaks from the oil filter housing, and various electrical faults that can affect starting and infotainment systems.

What is the most reliable year of the BMW 3 Series? The 2017 model year tends to receive the best reliability ratings among this cohort, with fewer reported issues compared to earlier models.

What is the most common problem with the BMW 3 Series? Timing chain issues are often cited as the most common problem, particularly in the petrol engines.

What owners say

Owners of the 2014 to 2019 BMW 3 Series often express a love for the vehicle’s driving dynamics and overall performance. Many appreciate the blend of comfort and sportiness that the 3 Series offers. However, there is a recurring theme of frustration regarding reliability.

Issues with the timing chain and electrical systems have led some owners to feel that the car does not meet the premium expectations associated with the BMW brand. While many enjoy their cars, they often recommend thorough checks and maintenance history before purchase.

Should you buy a 2014 to 2019 BMW 3 Series?

The 2014 to 2019 BMW 3 Series is a well-regarded vehicle that offers a great driving experience. However, potential buyers should be aware of common issues, particularly with the timing chain, oil leaks, and electrical systems.

If you are considering purchasing one, ensure you conduct a thorough inspection and obtain a full service history. Models from 2017 onwards tend to be more reliable, making them a safer choice within this range. If you can find a well-maintained example, it can be a rewarding car to own.