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Re: engine number location for 2002 audi a4
Is it a 1.8 turbo or 2.8 V6 or 2.7 biturbo V6 ? on most models what you will be looking for is a 3 letter code like ATQ or APW and is normally on a sticker on the timing belt cover, it is also stamped into the engine on a ledge up high. if no luck there check the owners manual, around the 3rd page there will be a sticker that was put in the book during predelivery inspection this sticker is about 3 inches by 3 inches and filled with id codes for almost everything. If the pdi wasn't done right another copy of the same sticker will be under or next to the spare tire in the spare tire well.
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engine number is different coming 7 dig.engine code 3 or 4 characters and fuse for diagnouse when use VAS it meen different parts use together and coordinated by ECU . tow engine same but diffrent code meens some part use are different . engine number is definition for this engine with chassis number you can find it one label on timing belt cover , and in between cylinder bolck and cylinder head there is square stamped number at exhaust side
You have to find someone who can hook up a diagnostic computer to your system. The code should tell them what system is giving you the problem, then you have to narrow it down from there. I have a mechanic friend who does this for me so I have a clue of the problem before I go to my Audi dealer. The engine warning light could be any number of things.
Part number: 4B0819439C. Filter element (dust and polen filter) with odor and harmful substances filltration. Placed on the right side of the car, (engine bonnet raised), under cover plate for water box (also for battery box), and under water deflector at the bottom of the windshield - right side for Left Hand Steering wheel. !!! For Right Hand Steering wheel cars the cabin air filter is placed on the left side !!! Please Rate my Respone! Thanks!
THOSE NUMBERS ARE VERY GOOD, THE PROBLEM MOST LIKELY IS A DEFECTIVE OIL PRESSURE SENDING UNIT, HAVE REPLACED 100'S OVER THE YEARS FOR THIS SAME ISSUE, GREAT THAT U CHECKED THE PRESSURE THOUGH, IF THE LIGHT WAS INDICATING ACTUAL LOW PRESS U COULD HAVE WASTED THE BEARINGS IN THE ENGINE.