[Kizbaa]

Hi guys, recently purchased a 2014 228i with 108k kms a couple weeks ago, I’ve noticed on cold starts it has a pretty loud ticking noise for 1 to 1.5 mins then subsides and car drives and sounds normal I was wondering if this is normal or if it’s possibly a timing chain or lifter issues or if anyone has any advice. I’ve just had a general service oil and filter and hasn’t seemed to make any difference thus far.

See attached Video link note toward end of video how noise quiets down im guessing that’s because the revs drop but it just seems very loud


https://youtube.com/shorts/jFIEoJS0u...EyAWBvPQglek-Z

[shannon1]

Google is your friend.

Just did a simple google search "2014 bmw 228i engine" and found your engine is a N20B20 inline 4 cylinder.

Did another simple google search "2014 bmw 228i N20B20 engine noise" and got,

The 2014 BMW 228i (N20B20 engine) is known for being relatively noisy, often producing a "diesel-like" ticking or rattling sound at idle. While many of these sounds are normal due to the high-pressure fuel injectors, the N20 engine also has known issues with timing chain failures that can present as a whining or rattling noise.
Here is a breakdown of common noises for this vehicle and their causes:
1. Normal N20 Engine Sounds

• Loud Ticking/Clicking: The direct injection system, specifically the high-pressure fuel injectors, operates at high pressure, which creates a constant metallic ticking sound, particularly audible from outside the vehicle at idle.
• "Tractor" Sound: Many N20 engines sound similar to a diesel engine, which is considered normal operating behavior for this engine type.

2. Concerning/Abnormal Noises (Require Inspection)

• High-Pitched Whining/Whirring: This is the primary indicator of a failing timing chain guide, which can lead to catastrophic engine failure if not addressed. This sound often correlates with engine RPM, particularly between 1,500 and 2,500 RPM.
• Rattling on Cold Start: A harsh rattle for a few seconds during a cold start is another sign of a loose timing chain before oil pressure builds up.
• Wastegate Rattle: A metallic, rattling noise, often heard during low RPMs or deceleration, is likely due to excessive play in the pneumatic wastegate actuator.
• Knocking/Squealing: A constant loud, metallic knocking or tapping that doesn't disappear when warmed up can indicate serious mechanical issues like worn rod bearings or bad lifters.

What to Do

• Timing Chain Check: Because 2014 models are among those affected by the timing chain guide issue, it is highly recommended to have a professional check for excessive chain slack.
• Oil Maintenance: Adhere strictly to 5,000–7,000 mile oil change intervals to keep the timing chain and components lubricated, as neglected oil changes accelerate chain guide failure.
• Avoid Cold High Revs: Do not apply heavy throttle (over 50%) until the engine is fully warmed up to reduce stress on the turbocharger and timing components.

If the noise is a whining that increases with RPM, take the car to a mechanic immediately.

[shannon1]

Also, you're posting this question in the BMW E90/E91/E92/E93 (2005–2011) 3 Series Forum, we don't have the same car or engine as you, so it is unlikely you will get any decent responses here.

You are much better off asking your questions in the 2 Series Forum for your car, https://www.2addicts.com/forums/ , you will get much better responses there.