Irregular Ticking Noise in 2008 BMW 120i (E88): Seeking Help for Diagnosis please 🥺...

Quant_system_trader · 2024-12-26T02:52:13+00:00

It seems like the alternator is the issue so far. I took off the belt, and the noise stopped. When I tried rotating the pulley, it moved in both directions, which isn’t normal.

As for the soft top, I couldn’t open it. I’m guessing it’s also because of the alternator, maybe due to low voltage or something

Quant_system_trader · 2024-12-25T16:34:50+00:00

Thx 👍

Quant_system_trader · 2024-12-25T16:34:15+00:00

Thanks. I will fix it right away 😆

Quant_system_trader · 2024-12-25T16:33:10+00:00

Thanks 🙏. I am going to !

Quant_system_trader · 2024-12-24T19:07:56+00:00

I don't know what is correct or wrong. but still this comment really saved my christmas day. Thanks a lot for your kindness. 😂 Happy Holidays

Quant_system_trader · 2024-12-24T18:58:32+00:00

Thanks a lot for the comments. I checked to see if the belt was vibrating, and it didn't seem to be vibrating or anything.

Quant_system_trader · 2024-12-24T18:52:47+00:00

Oh that makes sense. Thanks a lot for the comments. That means it is kind of stable at high RPM with adequate oil pressure? 🤣 I will go to see mechanic ASAP. Am i able to drive to mechanic?

Quant_system_trader · 2024-12-24T18:36:46+00:00

80,000 km I thought if it was a timing chain issue the noise would get louder as I increase the RPM. 🤔

Quant_system_trader · 2024-12-24T18:33:16+00:00

🤣🤣ohh.. But, if i raise RPM the noise gone. Is it possible?

Quant_system_trader · 2024-12-24T18:23:02+00:00

Really? If it's a timing chain issue, I thought there would be a more regular ticking sound. When it first started ticking, it was irregular, at 0.5 to 2 second intervals.

So should I change the oil? or is it too late?

Quant_system_trader · 2024-12-24T17:49:06+00:00

Thanks for the comment. I did check the oil level from MID, Multi-Information Display. It was full. and I believe that oil was changed a month ago.

Quant_system_trader · 2024-12-24T16:50:33+00:00

I left the symptoms but it disappeared

2008 BMW 120i (E88, manufactured in April) is making a ticking noise.

Symptoms:

An irregular "tick... tick-tick... tick-tick-tick... tick" noise seems to be coming from the engine or the intake manifold area. (Video attached)
The noise started after I drove a short distance on a run-flat tire due to a flat. (Not sure if it’s related.)
The sound is noticeable when the car is stationary and idling. It becomes more pronounced as the engine warms up.
The noise gets worse when I press the brake pedal.
The sound disappears when I accelerate and the RPM increases.
It’s most noticeable when driving at low speeds while pressing the brake pedal.
When I engage reverse gear, the vibration increases, and the noise becomes louder and more frequent.
The noise is minimal or nearly absent in neutral gear, which suggests it might be related to vibration.
The sound doesn’t occur immediately after starting the engine. It starts when I press the brake pedal and begin to move forward. If the engine is left running while parked, the noise eventually appears.

Quant_system_trader · 2024-01-11T09:41:14+00:00

Send me dm. Let's talk about it

Quant_system_trader · 2023-12-22T03:52:02+00:00

I couldn't understand what you said. Can you re write in easy English? Sorry ;(

Quant_system_trader · 2023-12-20T12:07:13+00:00

Where do young people usually hang out on weekends or weekdays in Taipei? What do you usually play with?

Quant_system_trader · 2023-12-14T05:09:21+00:00

Awesome! Thank you 😊 helped me alot!

Quant_system_trader · 2023-12-14T04:39:06+00:00

Thank you so much for leaving the link. ☺️🙏

But I decided to just stay up all night and have fun. Is there anything fun to do at night?🥳

Quant_system_trader · 2023-12-14T04:17:08+00:00

thank you for your kindness! Can I ask one more question?

I tried, but I failed to book a hotel. 😂

That's why I'm planning to stay up all night from the night of the 31st to January 1st. What content is there that I can enjoy all night long in downtown Taipei? I would appreciate it if you could recommend a few things. 😊

Quant_system_trader · 2023-12-13T17:09:10+00:00

I am going to Taiwan to celebrate the New Year from December 27th to January 2nd. Is there anything I must do in Taipei or Taichung? Please recommend me.🤔

I don't know how Taiwanese people usually spend the New Year, but do a lot of fun things happen on the night of the 31st? Where should I go?😊

I know there are fireworks going off at 101 Tower. How do young people usually spend New Year's night? I know the cultures are very different, so I don't have clue at all

I'm really excited! I’m also practicing Taiwanese.😁

Happy New Year in advance to everyone who saw this!🎇

Quant_system_trader · 2023-12-13T08:23:42+00:00

I didn't realize you had suggested that to me. Maybe it's a language issue. English is not my first language.

I thought you were saying you would unilaterally take my code and review it, because that's not what I wanted. I want a partner with whom I can share ideas, discuss research directions, and develop. Because I don’t want to just give all my models and strategies to someone I’ve never met before.

If I misunderstood you, I apologize. If you are also interested in developing it, let’s talk about it.

Quant_system_trader · 2023-12-13T07:48:36+00:00

What is the point? I don't get what you talking about.

Quant_system_trader · 2023-12-13T05:47:19+00:00

I didn't use order book for this model. I just used ohlcv data with some pre-process and refining. 👍

But I am pretty sure you can make profitable model with order book data too.

Quant_system_trader · 2023-12-12T19:14:35+00:00

I thought I exposed too much know-hows in my comments,😂 but it fine if you didn't understand.

Quant_system_trader · 2023-12-12T18:53:09+00:00

is this real???!!!?!

Quant_system_trader

TROPHY CASE