BMW M6 - Recent Questions, Troubleshooting & Support

The reason for this could be more than one problem. How much oil is there? Does the vehicle have any other symptoms or problems like smoky exhaust, loss of power, uneven idle? This could be a clogged PCV valve, clogged oil passages or badly worn piston rings. A PCV valve is a pressure release system for the bottom half of the engine that vents into the air filter housing. If this fails the engine can 'Burp' oil up into the air filter. They are not expensive so replacing it could be a cheap fix. Clogged oil passages usually happens to badly maintained engines where the oil isn't changed regularly and the dirty oil blocks the oil channels inside the engine. Depending on how dirty the oil is and how long ago the last oil change happen the fix could be two different methods. A major oil and filter change could fix the issue, however, if the engine is badly clogged you might need to get the engine 'flushed'. A major washout of the oil channels. The last reason is a more serious one. Worn Piston Rings. Oil is coming up past the pistons into the combustion chamber. This issue often also has thicker blue coloured exhaust smoke. This involves an engine rebuild to repair so mechanics often recommend a full engine swap. A rebuild is Major surgery for an engine.

Have you checked your fuses ? Might also want to begin checking for power from the fuse panel to the light assembly.

you might want to change the resistor wires if you have anywhere close to 90 or 100k miles on your car. The wires actually start getting hard and brittle after miles and miles of all that heat. In some cases, that will cause the wires to open or get breaks in the insulation. Which in turn will lead to no spark at the plugs. You can tell by pulling the wires off one at a time and holding it about an 1/8 of an inch away from a screwed in spark plug. You should see a little arc of electricity if you have no problem. You will see nothing if you do have a problem.

If it is posi rear-end or limited slip MUST have additive added to fluid or will cause noises.

please state if its a auto or a manual ,need this information to tell you what to check but firstly check the front pulley and the rubber join in the middle take the fan belt off to do this

Take trim back off. See if start. If start, leave trim off. You may have one of those grounding trim cars where you put the trim on and it shorts the battery and then there's not enough electrical electrons to start the motor.

Here is one source..
http://www.books4cars.com/listings.php?findmake=BMW&model=M6 &year=3000&type=%

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http://www.m5board.com/vbulletin/e63-bmw-m6-forum-bmw-m6-convertible-m6board-com/134060-m6-coupe-w-6spd-manual-owners-here.html

the most common oil leak on the m5 and m6 is the vanos high pressure line located on the front of the engine in fact this is the only area in which i have seen a leak on this car in the shop