If the check engine light is on in your 2004 BMW 325i, it indicates that the vehicle's onboard diagnostics system has detected an issue. Common causes can include problems with the oxygen sensor, mass airflow sensor, or issues related to the ignition system. It's best to use an OBD-II scanner to retrieve the specific trouble codes and diagnose the issue accurately. If you're unsure, consider visiting a professional mechanic for a comprehensive inspection.
You need a scan tool to plug into OBD port
reset service engine light on BMW 325
The oil pressure sensor on a 2004 BMW 325i is located on the bottom, right side of the engine. It is screwed into the block and has an output wire which sends information to the computer.
Reset inspection light on 1989 bmw 325i
The brake pad sensor light is reset by leaving the key on engine off for about 20sec. If it does not reset retry, if it still does not reset check the wiring of the left front and right rear pad sensors
If you asking about the engine type, the 325i is a straight-six not a V4.
To reset the disc brake warning light on a 2004 BMW 325i, you typically need to use a diagnostic tool or follow a manual reset procedure. If you have a diagnostic scanner, connect it to the OBD-II port and clear the fault codes. Alternatively, you can turn the ignition to the "on" position without starting the engine, then press the brake pedal three times. If the light persists, ensure that the brake pads are properly installed and that the brake fluid level is adequate.
The engine control module on a 95' BMW 325i can be found on the transmission. The transmission is under the hood, near the engine.
Probably the Thermostat has corroded and jamed. Or the ceramic pipe joins behind the engine are cracked. I would check these.
No
Yes
go to a battery store