Audi Quattro A4 2002 "Check engine oil warning lamp"

Sounds like bad battery connections or ground. Brake lights on permanently may be draining battery also. Brake light issue may be switch at pedal out of position or adjustment.

don't think fuse diagram will help , is the battery in good condition , may not hold enough charge to turn over engine , try jump start if engine starts then get a new battery then check alternator charge rate as may be reason battery went

1990 Audi V-8 Quattro 3.6L DOHC

Starter, removing and installing
Disconnect battery NEGATIVE cable
Disconnect wiring from battery to starter and starter to alternator (large terminal)
Disconnect terminal 50 (small wire to ignition/starter switch)
Remove starter mounting screws on engine/transmission
NOTE: Remove upper bolt on starter by guiding 10 mm Allen socket with extension and flex fitting through opening on transmission housing over final drive
Remove starter motor assembly
Reverse procedure to install

if the alternator was charging below 30 amps then i would suspect the regulator or alternator is the problem

The yellow light oil sensor on Audi TT Quattro is the warning message for the minimum oil level has been reached !!!
Check engine oil level by dipstick & fill up oil inside engine !!!

either a dead battery or bad wire connections from battery to starter first check and clean battery connections if still not starting try jumping battery if it still click than you have bad connection at starter

You would have to go to the dealership unfortunetly.

I hope that you had the proper weight oil installed, at your oil change. If your oil is up to the proper level, and it's rattling ,this is VERY bad. White smoke usually means steam in the exhaust, and that means a blown head gasket. Check your coolant level. I wouldn't drive it anymore......until someone knowledgeable can diagnose it!!!!!

I would suggest you check oil levels etc. Generally these cars suffer from the air mass meter / air sensor problems aswell as coil problems too. Did you ever get a solution to the problem?

have the oil pressure checked as soon as you can... also have them check the wiring for the oil sending unit

Robert

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