Burn smell from 4K RPM?

[begins]

Hi all,

My C5 would have this burn smell coming out from the air-con (suspecting) when I pushed the car to 4K RPM and above.

What could have the problem? Is this the car's indication to change engine oil, gearbox oil or is there a bigger problem behind?

Kindly advise me and Thank you very much.

Regards,

[Mandrake]

What engine and gearbox does it have ?

[begins]

Hi there,

My C5 is a 2.0L EW10 i4 VVT (YEAR 2007) using AL4 automatic gearbox.

Thank you.

Regards,

[Gibbo2286]

Quite often caused by driver error i.e. resting one's foot on the brake pedal at the same time as accelerator. Causes premature gearbox failure.

[citronut]

maybe this should be linked to your gear oil thread as it might be related,
i dont know much about auto box's but it sounds like the clutch's in the box are slipping/burning,

this will not do the gear oil any good at all

[begins]

maybe this should be linked to your gear oil thread as it might be related,
i dont know much about auto box's but it sounds like the clutch's in the box are slipping/burning,

this will not do the gear oil any good at all

Oh dear, this sounds worrying to me. Feel like going out there to grab a gearbox vitalizer and see if it works for me. But then, Jim told me to stick with AL4 and nothing...really puzzling..

Regards,

[myglaren]

Jim's advice is good. I would unhesitatingly follow it, had I an autobox.

[begins]

The smell would occur when driving hard. I read from other threads that it might be due to a leaky exhaust or oil leak on the catalytic converter. What do you guys think about this?

So far, I have changed the gearbox oil 3 times since almost 10 months of ownership. The situation did not improve. I’m concerned whether I would be toxicated by CO2 eventually, LOL.

Regards,