Question about 1999 BMW 323 Series

2 Answers

323i bmw problem

Hi i have an s reg bmw323i every time i start the car from cold there is a lound knocking sound which seems to be coming from the top of the engine but doesn`t last long enough to determine where it is coming from. also at the same time the revs are going up and down untill it becomes warm. please could you help me with this. thanks very much. chris

Posted by on

  • stuartcollin Mar 15, 2009

    i have a bmw 323 2.5l 1999e46 it knocks from cold sounds like its comming from underneath the chain cover the revs go up and down aswell until warm anyone got any ideas



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

An oil change won't do much.

You have failing VANOS seals. Relay this to your mechanic, and they should know what to do.

Posted on Jul 30, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert that hasĀ over 500 points.


    An expert who has answered 200 questions.

  • Expert
  • 359 Answers

Try an engine oil flush and a oil change

Posted on May 23, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Hi, my bmw e30 323i has a start problem, it only starts when its cold but hot it doesn't and when I check the plugs and (replace)coil and the coil plug isn't firing . Can I ask for help what's the problem...

Did you check the ECM or ignition module. You need a computer tester for that but they are not that much today. To me it sounds like an ignition module though

Feb 23, 2015 | BMW Cars & Trucks

1 Answer

Bmw 323i e46 making a noise coming somewhere from the engine i think

You will need to provide a little more info before someone can assist - when does it make the noise? All the time, only under acceleration, when turning left, etc? Can you locate it to the front or rear of the engine or to a specific component? There are mechanic stethoscopes that help with this. Can you describe the sound? A squeel, knocking, grinding? Good luck!

May 17, 2014 | Cars & Trucks

1 Answer

Where does coolant go bmw323i

A coolant is a fluid which flows through a device to prevent its overheating, transferring the heat produced by the device to other devices. The coolant goes in your radiator.You can find it anual--------------------------------------------------------------------------------
VAS 5054A V19

Jan 12, 2013 | 2000 BMW 323i

1 Answer

BMW 323i 1999 takes a long time to start in mornings and after short layoff. Engines seems not to want to crank. Battery OK. Changed sensors, fuel pump & relay. Dealer cant find fault. Starts after...

Friend, you've changed everything but the right thing. The temperature sending unit. It tells the computer to go into cold start mode to start the engine by putting more fuel into the engine. If this sensor is erratic, sometimes don't work, it will cause a hard start situation if not in cold start mode. Dealer cant find this because it's a manual thing and may not be showing up on his tester.

Nov 12, 2017 | 2000 BMW 3 Series

1 Answer

1996 bmw 323i m52b25 slight knocking noise from engine between

take rubber hose and place near ear use as stethoscope, pin point noise, and pull apart, till problem is located. buy manual

Sep 12, 2009 | 1994 BMW 3 Series

1 Answer

Fuses no. 7 & 37 on my 318is K-reg Bmw keep MELTING.

you have to figure out where there is a short in your wiring--follow wires, look for broken, missing insulation--if it started in lights, look there first maybe. Also check the connections of plugs. Good luck it may take some searching.

Mar 27, 2009 | 1996 BMW 318

1 Answer

Bmw 323i loss off power cutting out

have the catalytic converter checked out...if they clog it will make the car run wrong and cut out and die

Jun 15, 2008 | 1999 BMW 323 Series

Not finding what you are looking for?
1999 BMW 323 Series Logo

Related Topics:

360 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Anthony Jones
Anthony Jones

Level 2 Expert

128 Answers


Level 2 Expert

254 Answers


Level 2 Expert

281 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides