Air con smells of rotten eggs .

[Stubby]

So . Truck sailed through the MOT last week . Now , coincidentally i am sure , the air con smells like rotten eggs . ( not my mate eggs the drain man ! )  Blocked pollen filter or something else ?

Edited July 27, 2021 by Stubby

[gary112]

8 minutes ago, Stubby said:

So . Truck sailed through the MOT last week . Now , coincidentally i am sure , the air con smells like rotten eggs . ( not my mate eggs the drain man ! )  Blocked pollen filter or something else ?

Usually a rotten egg smell is from the catalytic converter when thats knackered and i guess the smell comes through the a/c. You sure you didn,t just fart?

[Stubby]

4 minutes ago, gary112 said:

Usually a rotten egg smell is from the catalytic converter when thats knackered and i guess the smell comes through the a/c. You sure you didn,t just fart?

Thanks Gary . No not farted bud !  A new cat is lots of £££££ innit ?  Will keep the windows down me thinks . 👍

[dan blocker]

The Cat can smell of eggs when still in good order, what’s your daily mileage like? May be just wants a good run out. Exhaust exits at the rear of vehicle doesn’t it? with air intake somewhere up the front so I doubt exhaust fumes are coming in through the air intake 🤔- unless your reversing everywhere cos you can’t find a forward gear😳. Have you got a pollen filter? They should be changed at least annually, also I believe some manufacturer main dealers clean out the air intake side with a anti-bacterial spray. Start with the cheaper solutions before changing cat because as you say they’re stupid prices.

[Dan Maynard]

It can be mould from the damp condensation inside the ducts, you can get Aircon "treatment" which is supposed to kill that and make it fresh again. Or in some vehicles pollen filter going mouldy, that can be changed.

[spudulike]

Sounds like the condensate from the Aircon isn't draining correctly...check the outlets the water comes out of. 

[Stubby]

15 minutes ago, spudulike said:

Sounds like the condensate from the Aircon isn't draining correctly...check the outlets the water comes out of. 

Thanks Steve . Also got a pair of cabin/pollen filters on order .

[Rac man]

Start engine turn aircon to max cold should be a lovely puddle of water forming underneath ive forgot the amount of breakdowns I go to who think there radiator leaking but one of those aircon aerosol are pretty good

 

[Stubby]

1 hour ago, Rac man said:

Start engine turn aircon to max cold should be a lovely puddle of water forming underneath ive forgot the amount of breakdowns I go to who think there radiator leaking but one of those aircon aerosol are pretty good

 

Started the engine , ran the fan flat out with no pollen filters in and air con off . Sprayed Dettol anti bacterial spray into the air intake  left it running for 5 mins or so . Replaced the pollen/cabin filters with brand new ones . Horrid smell gone ! . As an aside I think the gas wants topping up as its not blowing very cold with air con on .

[topchippyles]

Was it a chicken egg smell or another type of bird species ?