jw1977

I have an 07 C2S that has 36,000 miles on it. THe car has been awesome, not one problem other than replacing the battery which is expected. I've noticed during the last month that after harder acceleration runs there is a burning smell. Any ideas? I haven't dropped the clutch so I doubt it that's but who knows.

TerpsRED

check your brakes. If your pads are low you could be heating up your braking system, also check around the exhaust under the rear. If you run over and pick up some road gunk, it will cook off slowly from those exhaust components. - Just some thoughts. It would help if you could narrow down where the smell might be originating from.

CORSASCHNELL

Does the burning smell come into the cabin while driving or do you smell it after you shut down and exit the car?

PHX 911

Normal, me thinks.
Mine gets a little skanky after being driven hard.
My 2006C2S did it, too.

CORSASCHNELL

Not sure if it normal, in some cases, even in cars several years old, the Cosmoline applied from the factory prior to shipping the car burns off when the engine runs too hot, but that smells different than a plastic or oil burn.

It is difficult to accurately describe a burning smell here, but Cosmoline burning off has a sort ofsweet smell.

duke92

+1 on the cosmoline. Well known concern of new Porsche owners classically observed after spirited runs. Many threads on this.

fskof

Was the oil just changed? If it was its possible that some oil was spilled on to the engine.

krysFly

It's normal

jw1977

THe oil was not just changed. I can smell it in the cabin. and I doubt it's the brakes, when i've smelled it I haven't just been on the brakes. Thanks, maybe it's just normal.

yemenmocha

Mine has the cosmoline smell after some hard accelerations sometimes, and I haven't found a correlation with certain tempatures or anything like that. All I know is I smell it less or notice it less than when I bought it new 6 years ago. But it is still there occasionally.

Edgy01

If it's not the clutch (and we all know what that smells like) and it's not the brakes or the remaining cosmoline I would seriously check out the serpentine belt and the come-along wheels in the engine area. I was smelling sort of a burning rubber smell (which I dutifully reported to my service advisor) and sure enough a few weeks later my serpentine belt failed. If they are not tracking perfectly you will get abnormal wear and then a surprise failure...see my posting on serpentine belts. Your mileage is close to where mine was when it failed.

Link: https://rennlist.com/forums/997-foru...t-failure.html

San Rensho

The cam covers tend to leak, more so after a hard run, which can drip oil onto the exhaust and cause a very pronounced burning smell. Also, remember tires smell when they are run hard.

At Law

Very normal. Mine has done this since 3,000 miles when I bought it after spirited driving. 17,000 miles later, still does it. Cosmoline.