Question about 2004 Mazda 3 1.6

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Mazda 3 computer box

If I put second hand computer box will it work, must I also take it to a mazda dealer for key coding

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The engine has blown and it needs reconditioning or new engines. How much will it cost?

you local Mazda dealer can frighten you with the cost of a new engine. Make sure you are sitting down.

This will give you some idea of second-hand engines.

You can all the parts from here for the engine you have.

RockAuto Parts Catalog

Jan 06, 2016 | 2009 Mazda 3 2.2

1 Answer mazda3 2005 2.0 did not cone with a manual. second hand buy.if I look for radio code problems everyone keeps on saying to put in a new code after using the master code I should check the manual. I...

Take the Mazda straight to a Mazda dealership and they will solve your problem in no time. Or email Mazda corporation and they will email back with the instructions, like I did. We have a 2005 Mazda SP23.

Feb 17, 2015 | 2005 Mazda 3 2.0

2 Answers

After changing battery radio and electrical door key don't work

car lost the frequency of the key..needs reprogrmed..

Dec 30, 2013 | 2010 Mazda CX-7

1 Answer

Radio code bt50

The easist way to program a mazda key is

sit in the vehicle with drivers door open
ensure all other doors are closed
put key in the ignation and put to on (do not start)
then put the key to off within 10 seconds
inset another (new key) in the ingition and turn the key to on
by now your indicators and door lock should flash
this means the key is programmed....

Aug 03, 2012 | Mazda BT50 Cars & Trucks

2 Answers

1999 E46 318i car do not want to start. Computer box motherboard is burned where the no 1 plug fits. Can i replace the computer box with a second hand one and is it a question of plug and start or what is...

you can fit a new one from scrapyard but you will need the chip from the key and the transponder to make it work ,a new one in dealers is around a 1000euros and a dealer will not reprogramme a secondhand one for you as they only want to fit a new one (profit) Unless you can find a local auto locksmith who can reprogramme the immobilisor for you but for him to do this you will need the chassis number of the donor vehicle so he can get the 4 figure code to reprogramme the key to the ECU immobilisor .

Jan 24, 2011 | 1999 BMW 318 ti

1 Answer

Lost the key to a 02 or 03 mazda 6 - had keys made but before it was lost but they don't have the computer chip - how can I get a replacement key with the computer chip in it?

most key shops have these keys in stock/on the shelf but if you get stuck contact a local mazda dealer(they will need coding to the car......)

Aug 02, 2010 | Mazda MAZDA6 Cars & Trucks

1 Answer

I have disconnected the battery to my MX5 and now when I try to use the stereo it just comes up with Err?

when the live is disconnected the stereo locks itself to unlock it you need the code which is usually a four digit number code look if its in the cars hand books if not a mazda main dealer will be able to get the code for you or i use a local radio code man than charges £10 so depending on how much it costs from a mazda dealer you may be as well buying a second hand cd player and putting that in

Oct 21, 2009 | 2002 Mazda Miata

2 Answers

Mazda 323 1994 dont started anymore all of a sudden 3 lights come on but nothing happen any idea?

for your mazda problem you must to check the followings
1- chech fuel filter
2- check electric fuel pump
3- put switch on you must to hear a click if no so there no electric power on pump in this way take out electric fuel pump and tested if not work so you must to change it by new one and also you must to change the fuel filter by new one.
this is the best way for start your car and let me know if every thing ok

Aug 10, 2008 | 1994 Mazda 323

1 Answer


The 1st key cost more because they have to reset the cars security system to make it recognize the new key, once that is done is easy to do the 2nd key, thus less money for the second key.

Aug 06, 2008 | 1999 Mazda 626

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