Question about 2004 BMW 325i

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I hear a light ticking noise in my bmw 325i engine

Light noise under mo hood

Posted by Anonymous on


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Posted on Jan 02, 2017

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SOURCE: check engine light comes on but car runs great 2002 bmw 325i and

The check engine light could be any number of things and the only way to find out is have the codes scanned. The brake light issue is common on E46 3 series. It is an issue were the brown ground wire that goes into the lamp housing melts at the connector causing a loose ground connection. The connector needs to be replaced and also add additional grounding wires to prevent further issues. And for fuel additives either use the cheveron techron, or the bmw fuel additive(the bmw stuff is the exact same thing, so just use which ever is cheaper).

Posted on Mar 12, 2009

  • 30 Answers

SOURCE: 2003 BMW 325i will start but making noise

It might be a faulty power steering pump. Try checking the level of the power steering fluid. It is probably best you have your power steering system checked by a mechanic.

Does the noise occur only when the vehicle is moving?

Try moving the steering wheel from side to side, while stationary (but don't do it too often, or you might damage something). If the noise is still present when the car is stationary, then it probably is the power steering system.

If the noise only occurs while the vehicle is moving, it could be a problem with the differential/final drive, or even wheel bearings.

Posted on Apr 21, 2009

  • 1 Answer


in not the batery and starter the securyty sistem activad is not signal to the stater from ews ii to starter

Posted on Jan 06, 2010

  • 10319 Answers

SOURCE: abs brake light dsc on 2003 bmw 325i

many reasons for this. A bad relay can do it, or a wheel speed sensor can to. Also the relay may be at fault. You can have the codes checked for free at any Auto Zone and they will tell you what part is bad

Posted on Jan 24, 2010

  • 736 Answers

SOURCE: check engine light 2003 BMW 325i

both codes are for lean mixture ... bank one and bank two .....that usually means a vacuum leak in the air intake system ... there is a Y shapped boot off the throttle body that fails frequently .. look for a hole or tear or general deterioration ... there is a second boot after the MAF (mass air flow) sensor, that is another possibility ... any off the vacuum hoses you can see under the fancy cover plate could be leaking .. there is a "crank case breather diaphram" that can do the same ... you can test that by removing the oil filler cap slowly (running) ..there should be a sllight vacuum release ... if its a big vacuum whoosh and maybe engine stumbling then suspect the crank case breather diaphram ... finally you could have a bad MAF sensor but more likely the vacuum leak ... running with a lean mixture can eventually damage valves and valve seats ... i use a small rubber hose to my ear to find vacuum leaks (stethoscope) ...

Posted on Apr 11, 2010

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My 2001 740i bmw makes a ticking noise when idleing and if i turn on the air conditioner it gets louder

First off, have a good look at the engine and the a/c, try to find any leaked fluids or stains, could find the problem. If you hear a hissing or wheezing sound it may simply be a gasket or tiny hole in a hose / vacuum line. Open the hood while at idle, see if you can echo locate the noise ( with and without a/c.running) Be careful to avoid the belts and fans. If you still can't locate it. The only other thing that comes to mind is the belts themselves, if one is worn of frayed it can make a noise every time it passes over a pulley. One last thought, make sure you're using the right octane gas, too low and the engine will knock and / or tick. Hope some of that helps you, Grim

Aug 19, 2015 | BMW Cars & Trucks

1 Answer

I have a 325i 1993 bmw my windows and sunroof went out barly work all i hear is this ticking noise behind the steering wheel so i buy a new muti purpose relay and plug it in brand new one and its still...

They sold you a turn-indicator relay!!!!
(Sorry- sick joke) ;)
The ticking noise you hear will be the relay contacts repeatedly closing and opening, like somebody flicking the lights on and off.
This should not happen.
Have somebody check your on-board computer and wiring.
Does this help you?

Oct 28, 2017 | 1993 BMW 3 Series

1 Answer

Ticking noise in engine

May be mice, but I had a truck that did that from a worn speedo cable.

Aug 21, 2009 | Ford F-150 Cars & Trucks

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How does the hood open on a 1993 325i? I have it

Latch under the hood, Drivers side of the BMW emblem. Lift it up and voila!

Jun 27, 2009 | 1993 BMW 3 Series

1 Answer


You can't use a tool to pull codes from an '87 BMW 325(e). You have the 2.7 liter and your DME, or computer is a Motronic. If you had a 325i, then a tool could read the codes because the computer was upgraded that year to a Motronic 1.1 system with a round plug in under the screw cap on the driver's side under the hood. The only tool you can buy is the one for resetting the service interval light and resetting the oil change light. To answer your question about going about finding your driveability problem would be to get a BMW Bentley Manual. This manual shows you how to use a standard voltmeter to check everything from your computer plug in. Your computer is located above the glovebox.

Good Luck,


Jun 05, 2009 | 1986 BMW 3 Series

1 Answer


The motor is replaced from under the hood, you have to remove the cabin ai filter housing. It is can be a hard job. Most dealerships will charge 3 hours labor to do it.

Apr 10, 2009 | 2001 BMW 325

1 Answer

Air sucking noise from below the intake manifold.

Look for a vacuum hose that isn't hooked up

Feb 13, 2009 | 2003 BMW 325

1 Answer

Need location of fuel pump relay

This relay will be in the Power Distribution Center under the hood in the engine bay. Thanks for using fixya!



Jan 08, 2009 | 2001 BMW 325

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