Can anybody pin point this fluid leak?

So thisafternoon I noticed there was an oil / fluid leak coming from somewhere. The oil ends up accumulating on the undercarriage just behind the front right wheel arch. The oil is a brownish redish colour. Does anyone know where this leak may be coming from? Please see pics to help explain the location.

Open your engine bay. Open the power steering tank. Open your brake fluid reservoir. Pull out your dipstick. Look at all the fluids. See if the leak matches any of these.

You can dab some of the fluid from your engine bay on a white tissue to make it easier to study

If your brake fluid reservoir is running low, top up with brake fluid immediately, and then take your car to a workshop to have it checked out. Do not delay.

The only other fluid at the back of the car would be differential fluid. But that should be leaking (if there's a leak) from the rear differential and not the doors.

There is a bolt that commonly comes loose on the 535's M30 engine. You need to remove the air filter housing to access it. It is a front timing cover bolt that backs out causing an oil leak. It doesn't take a lot of oil to make a big mess, just follow the oil forward to the source. If it is the t/c bolt, the oil will drip onto the a/c compressor then to the lower engine pan, then either the ground or blown back while driving.

The red color could indicate auto trans fluid. Check the lines and connections between the radiator and the transmission.

Power steering is a pretty common leak as well, though on my lhd drive car, the pump, box and lines are all on the left side of the engine bay. Pressure washing this area first is very helpful as there are several potential leak points. Start by making sure the clamps on the low pressure side and under the resevoir are tight.

Another possibility is the oil filter housing gasket on the left side of the engine.

Clean it up, drive it a little and check all of the above.

It shouldn't be brake fluid, snow is right of its red It's trans, or powersteering. It looks like it could be engine oil too. I would guess valve cover. I've had a leak that did that to another car as well as get on the windshield too. My valve cover now leaks onto the subfram pretty close to that. But can't tell until you POP the hood

Under no circumstances should you add brake fluid to your car, unless it is leaking(you will know by the feeling of the brake pedal) or changing fluid.

Clean it all off, check fluids, and drive it for a little bit. Should be able to see the leak.

Thanks for the advice guys. I will get to work on my lunch break and try to diagnose. Will post back once I have found the source.

On second glance, are your sure it was your leak? Looks more like you drove through something and it sprayed off of the tire.

I bet some of the spots mentioned, may need attention anyway.

If for some reason it is brake fluid, you will feel it immediately and profoundly in the pedal. Do not drive, find leak.

Well I had a good look and couldn't find a leak anywhere. So I took it to my local garage who couldn't find a leak either. Snowsled I think you were right, I may have just drivin over someone else's leaking "stuff". So I celebrated by removing my front spring pads getting it to its ideal height.