Messages

1

Electrical / Problema Alarma BMW/ encendido

« on: October 07, 2024, 10:35:13 AM »

Hi everyone!

The other day I was finishing fixing some things in my 318IS and I connected the battery that I had removed to work.
Whenever I disconnect the battery, when I reconnect it, the alarm goes off and I can't figure out how to stop it, sometimes by locking or unlocking the doors and sometimes it just stops.

The question is that when I wanted to insert the key to start the engine there was a tab that did not allow me to insert the key.

After manoeuvring for a while I managed to get it in, but when I turned the ignition on, the dashboard wouldn't light up and it wouldn't let me turn the key any more to start the engine. It doesn't work with the battery disconnected either.
My question is: Does the alarm have some kind of immobiliser? I know that the original BMW alarm cuts the injection, but I don't know if it has a locking system for the cylinder, as the key has a light or infrared (I have disassembled it and it is a light attached to a battery without a motherboard).

The battery works correctly at 12V and on the other hand I have the driver's door lock broken and I don't use it, which is the one that triggers the alarm.

Thanks for your help. 

2

Engine + Driveline / Endemic starting chain noise

« on: August 05, 2024, 06:50:30 PM »

Hi guys, I would like to comment on one of the main problems I have with my 318is and I am waiting for your help.

The case is that I have had the car for 3 years, and at the beginning sometimes in winter when I started it, the chain rattled for about 2 seconds.
The noise in particular is the one at the beginning of this video:

https://www.youtube.com/watch?v=5vAx-XkHej8&t=597s

The question is that it started to make the noise more and more often, and nowadays it sounds if the car is stopped for 1 week (before I used to use it the same way and it didn't make it).
That's why searching in forums, videos, etc. I saw that it was a recurring problem in the M42 caused by the chain tensioner, or otherwise it was something normal as the tensioner was unblocked and hence the noise the first few seconds.


Therefore I checked the following things:
-Chain tensioner: I had already fitted the one from the M44 which was the new BMW reference as the one from the first M42 was giving problems. Even so, I replaced it with a new one and it is still the same.
-Oil viscosity: I have always used 10w40 oil even when it hardly made any noise. Change oil to Motul 10w40 + Liqui Moly ceratec (previously washed with Engine flush). Still the same.
-Chain: The car has 114.000km. The mechanic told me that the chain sounded a little bit, a scraping at about 2000rpm before opening the big throttle. I don't know if it could be wear but I would be surprised with so few kilometres (and with good maintenance).
-Oil pressure: the pressure sensor has been checked and is working. It would be necessary to measure the pressure with a pressure gauge, which I still have to do.

In short, it's a problem that is bothering me and I don't know what it could be, because the problem has been getting worse over time.
I hope someone can help me hahaha

Thank!