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[Mav Singh]

hey all, mk3 1.6 si here, im getting what i think is exhaust gas fumes in the car when the heating is turned on, my eyes get watery and i get dizzy.

any idea where this would come from, no exhaust leaks from what i can see under the car but not sure whereabouts in the enginebay to look.
manifold seems to be ok

i dont think the smell comes in if its set to cold, i will check later today,

where does hot and cold air come from into the cabin? is hot air directed in from the engine bay?
i thought it was sealed off from the engine, but not sure.

[Mav Singh]

just to add iv changed the rocker cover gasket few days ago, old one was leaking, so i cleaned up the area afterwards brake cleaner. would old oil deposits that have dropped down onto the exhaust cause this sort of issue?
all i know is if i put the heating on i get watery eyes and they sting a bit.

[Dazza]

You sure its exhaust gas? Could it not be melting plastic? If its heater related (only when heat is selected)it could be a problem with a connector or the actual heater element, does it getter better or worse with time?

[Mav Singh]

i will do more testing on my way home, its got worse since replacing my rocker cover gasket, im not sure its exhaust gasses either. but smells dodgey.
i will update when i have more testing done.

[Mav Singh]

odd it didn't happen on the way back home today. happened in the morning when I was stuck in traffic. will have to do more testing over the week.

[Mav Singh]

very odd its not doing it again, must have been some oil from old rocker cover gasket that got burnd on manifod or something.