20 Most Recent 2007 BMW 3 Series 328i - Page 8 Questions & Answers

check the gear selectors.

very same problem here. does it effect your car in anyway.
i have a bmw e46 coupe 318. and recently the tempreture raises and drops as soon as i put the heater on.
please reply asap i need to know if there is a link

You probably fouled the sparkplugs. Change those and see if it starts ok.

Its a warning to check brakes,pads have sensors to warn you early
Get all pads checked
Look in owners manual so you know what all warning lights are

the clutch plates are very worn if the engine starts and the car drives for a short time. Upon driving the trans fluid will get hotter causing the fluid to get thinner causing a higher viscosity which means when the fluid is cold it is heavier keeping better pressure on the clutch pack facings. When hot the pressure is lost causing the clutch pack facing to slip which causes this problem you have here. Having the trans rebuilt will cure this problem

Depending on the age of the car.. it may simply be the battery in the key.

You can either buy a new key.. or pry open the key and replace the 5 dollar battery.. you need to be handy with a soldering gun..

Before you do this.. you can try reprogramming the key..

1:Get in the car and close all of the doors.

2: Turn key on (1st position), and wait for all the lights to go out before turning ignition off. (or under five seconds)

Perform next steps within 30 seconds.

3: Press and hold the UNLOCK button on the key.

4: While still holding the UNLOCK button, press and release the LOCK button three times. Do this deliberately, not too quickly.

5: Release the unlock button. Car's locks should cycle, indicating the key is programmed.

6: On some cars, all keys are cleared from memory, so you will need to repeat steps 2-4 for any other keys.

7: Once all keys are programmed, use the last programmed key to turn the ignition on and back off one last time.

If programming more than one key.. Must be done within 30 seconds of completing the above steps.

This is the first step.. next would be checking the receiver ..I believe it is located in or near the rear view mirror on that car.

If you replace the key battery..or the key(s).. you will have to use the above programming steps to get them to work properly.

Best of luck!

Hello and welcome to FixYa!

It can be a possible MAF (mass air flow) sensor and vacuum hose problem. If the MAF is faulty, there will be irregularities on the vacuum supply. Now wonder it cut's out. If there are worn out or disconnected vacuum hoses the vehicle may cut out to.

I strongly suggest that you have the car scanned to know the fault code and the fix. This is wiser that guessing on what part needs replacement.

Hope this helps and thank you for using FixYa! Have a good one!

it has a sensor fault but the problem is finding the fault ,best advice here is to ask BMW dealer to have a look for you as sometimes this sort of fault could be anything from a sensor to a microprocessor and without the correct software its very difficult to locate

These can be bought at most discount parts huses, e.g. Autozone, Advanced Auto, O'Reilly's, and Pep Boys for about $20.00. Haynes Service Manual:

Do you have a problem with the vehicle that leads you to feel that this proceedure is neccesary?I work on Jaguars and seldom find the need to disassemble an engine without a need.The only true inspection of this type is an NDI which is basically an xray.Very expensive.Its cheaper to just guess this is the problem and replace the part.What exactly is your complaint?
Glen

try by cleaning throttle body good ! start at air filter and check. then go to maf sensor. just unplug sensor,run vehicle if it is better sensor is bad, if rpms drop it is ok. it may need a good cleaning. also check fuel pressure and all vacuum lines. it is hard to tell from this end, but try above and see. did you replace fuel filter. have a good day !!

Sounds like thermostat went bad. That would explain cold one side/hot other. I'd start there. Good parts sources - BavAuto.com or PelicanParts.com

You need to get hold of a tool to read your supplemental restraint system (SRS) codes. Fortunately, for 2002 models, tools are commercially available for a fairly reasonable price, or you can visit a shop that works on BMWs and have them check it.
Often times, airbag codes result from someone abusing a seat belt buckle or from something heavy bouncing on the passenger seat, confusing the occupant sensor. If you just reset the light (which the code reader will do) it often will not recur. If the light comes right back, you have a problem and you need to get it fixed. If the light is lit, they air bags may fail to deploy in an accident, or they may all deploy in an accident (which would total the car and be really hard on your eardrums) The code should give a clue as to where the problem is.

Look up your car on RealOEM.com. It shows the belt position and shape when installed.

most likely its the thrust bearing noisy but it could also be the layshaft bearings in the gearbox as well ,check the gearbox oil level and check its ok if ok then its a thrust bearing ,these modern motors with a nylon bearing holder are not very good to say the least ,now if oil level is low in gearbox then before you top level up use a grease gun and remove the nipple thing on the end and then pump a good grease gun full of LM grease into gearbox and then top up with EP90 as this will help seal any leaks and stop a lot of the noise ,you cannot hurt anything by putting the grease in the gearbox i do it lot to stop a leaky gearbox from leaking as the grease gets hot and sinks to the bottom and solidifies stopping a lot of the leaks from gear linkages and around the drive shafts although this is a rear wheel drive vehicle so that is less of a problem

Sometimes (as weird as this sounds) trunk actuator will knock sync out if whack. (I used to work for BMW and encountered this once before) Try working locks from trunk actuator. Can also try from passenger front door.