my coupe has develped a really bad shake at around 80kph. If I accelerate through it nothing but as I brake the front left starts to shudder really bad. I don't thinks its the brakes as I have loaded them up and driven in 2nd and not a hint of vibration. I have jacked up the front and all the suspension components feel tight (I shook the s$%#t out of it). I then noticed oil all over the spring and stut, if the shocky is out of oil could this couse such a bad shake/shudder.

If it only happens when braking, the rotor is probably slightly warped.

sounds like a lump in a tyre, and killed the strut...

the oil could be brake fluid maybe? i had a seal go on a front caliper ages ago and lost all the brake fluid, different car, differnet problems.

check your front tyres and get the front wheels balanced

If it was the tyres, would it not shake even when not braking?

i also had similar symptoms from a worn bush and accentuated with a worn wheel bearing but was under accelartion and coasting. replaced both and gone.

After further inspection I think it may be the wheel bearings are loose (slight klunk klunk when shake wheel at 12 and 6) I will let you know.