Have never serviced a Mazda atenza before and have bough the oil filter, not to sure where it goes?

you have'nt mentioned year so follow this link to a owners forum for the relevent year etc
Proper Oil capacity Mazda 6 Forums Mazda 6 Forum Mazda Atenza Forum

My data book shows that all Mazda motors around the 2006 year are all chain driven. they include 4 cylinders and V -6 engines . Chains have an aluminium housing on the front of the engine where as belts have a plastic cover . Chains have a hydraulic adjuster which adjusts the chain automatically and the KLM's to do it will depend on the work the engine does and the services it gets . For example if you are a petrol head and forget the services or uses cheap /wrong grade oils then the chain may be noisy at 150.000 klms but if you drive responsibly and change the oil every 10.000 klms and use a good quality oil the chain will last more than 250.000klms. To prevent being taken in future check the accreditation of the mechanic and ask around about the garage's customer relations

get your codes first.

Manual mazda - http://www.avtodiagnostika.info/manual-mazda/

No problem its only a filter and the same filter could be used on as many as 20 or more different makes of vehicle

Hi there, I am looking for service manual book for Mazda Alteza 2008 with thanks

well you can go to Auto Zone website and ask they will show you how.I did

Reading Topic: Timing Chain?? Both the 4 cylinder and 6 cylinder use timing chains. These chains are pretty much service free and should last the life of the vehicle. Borrowed from http://forum.mazda6club.com/mazda6-atenza/121169-timing-chain.html

For optimum protection, change the fluid and filter every 30,000 miles. Hope this helps.

find the oil pressure sensor on the block and unplug it the light should go out, if not try grounding it if it goes out make sure you have adequate oil pressure and change the sensor please rate -jeff