20 Most Recent 2002 BMW 3 Series Questions & Answers


If you are assembling the engine you must have a shop manual to provide torque values, etc. I expect it has the timing procedure. If you don't have one, I highly recommend you buy one because if you mess up the cam timing you will have wasted much work and $.

2002 BMW 3... | Answered on Jan 21, 2019


Hi. The oil service light in red indicates that the vehicle is over due for a vehicle service..OIL SERVICE.. If you don't have it done, it could all go wrong. Have the light reset after Service and then it will monitor for your next service.bye for now.

2002 BMW 3... | Answered on Oct 25, 2018


A8 is thermostat needs replacement, i just had mine done at Peter pan dealership

2002 BMW 3... | Answered on Mar 22, 2018


Rread the trouble codes with a wireless OBD adapter and OBD Fusion app. If the codes indicate lean condition, such as P0171 or P0174, then smoke test the engine for vacuum leaks.

2002 BMW 3... | Answered on Feb 02, 2018


check for trouble codes and have the fuel pressure tested.

2002 BMW 3... | Answered on Sep 05, 2017


could be a vacuum leak problem
put the car in park with the hand brake on
start engine --idles ok ---put the foot on the brake --idle changes ---replace brake booster-- no change adjust vent controls --no change -no vacuum leak
contact the bmw service for an explanation of the code found and what could be causing the problem

2002 BMW 3... | Answered on Apr 10, 2017


Most likely you have either a bad relay, or a short circuit. My 1998 had a relay someone had put in that was the wrong relay such that it caused a current drain. Use amp meter between battery ground cable (disconnected from battery) and battery ground post to see how much drain exists, then pull relays one at a time to see if one stops the drain. If not, do the same with fuses to find the bad circuit and fix drain.

2002 BMW 3... | Answered on Oct 18, 2016


Ignition firing order is 1-3-4-2.

2002 BMW 3... | Answered on Sep 22, 2016


check vacumm pipe
and mass air flow sensor

2002 BMW 3... | Answered on Sep 18, 2016


have you changed it or want to change

2002 BMW 3... | Answered on Sep 18, 2016


computer normally reset all system

2002 BMW 3... | Answered on Sep 18, 2016


bmw recommended one

2002 BMW 3... | Answered on Sep 18, 2016


plug in to diagnostic to clear light

2002 BMW 3... | Answered on Sep 18, 2016


ECU means Emission Control Unit. This is the computer and you need the OBDII to read the code. That code itells you where is the problem of your car. Only mechanic has this device. You can get your own too. Its only $65.00. Shop to online more cheaper. It is neccessary to have this device so that you know what you are telling when you go to the mechanic. They can not cheat you You can use this too to reset the computer. So very usefull for the cars. ok.

2002 BMW 3... | Answered on Jul 27, 2016


I always user OE parts. If the manufacturer called for these, use them. If not get the ones they call for.

2002 BMW 3... | Answered on Apr 22, 2016


http://www.bimmerfest.com/forums/attachment.php?attachmentid=367529&d=1363917572
this is supposed to be bmw error codes.
give it a whirl I scanned it with malware bytes and it said no issues.

2002 BMW 3... | Answered on Dec 01, 2015


This is not a task for the feint hearted and could require a major strip of the dashboard. Go to BMW forums and see if you get an idea of what's involved on that model. Anything with AC as well is usually a bit of a nightmare. If you get it done make sure you flush through and fill full antifreeze quantity to safeguard new heater.

2002 BMW 3... | Answered on Nov 05, 2015


IT MEANS IT WILL COST ABOUT THAT MUCH TO REPAIR. BMW CODES ARE CROSS REFERENCED TO THE AMOUNT THE DEALER CHARGES TO FIX.

2002 BMW 3... | Answered on Nov 04, 2015

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