wierd smell

[adrianzamarripa022802]

i bought a c300 from an auction and it always has this wierd smell at first i couldn’t smell it cause of my previous covid symptoms but my girlfriend would complain about it and now that im getting my smell back it and it is a nasty smell and only when i drive anyone know what to do


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[SL63 Mark]

Can you describe the smell please ? Is it Petrol ? Exhaust fumes ? Tobacco smoke ? Dog ?

 

[adrianzamarripa022802]

Can you describe the smell please ?

it smells like burning like either oil burning or plastic it’s a smell that’s hard to explain it’s not throw up nasty but it’s like you need to put the windows down


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[SL63 Mark]

Sounds like maybe wiring loom ? Is something overheating ?

 

[adrianzamarripa022802]

Sounds like maybe wiring loom ? Is something overheating ?

no nothing is overheating and smell is stronger the faster im driving at first i thought it was maybe leaking oil hitting the plastic pan under the car but i checked and it was nothing like that


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[L John]

Check for a plastic bag caught on the exhaust underneath the car.

 

[Blobcat]

As it’s had some front end damage are there any bits of plastic trim, covers etc. getting worn away by moving parts?

 

[adrianzamarripa022802]

As it’s had some front end damage are there any bits of plastic trim, covers etc. getting worn away by moving parts?

i dont know i haven’t checked that because when i got it had front end damage i fixed it and then got another front end where should i check ?


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[mioba]

get under the hood (bonnet), Take the covers off. Start the car (careful of moving parts) and start sniffing and looking.

 

[adrianzamarripa022802]

get under the hood (bonnet), Take the covers off. Start the car (careful of moving parts) and start sniffing and looking.

i looked and it doesn’t smell on the outside it’s only the inside


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[RussSL]

Cabin filter needs replacing or mould in the air con pipes?

 

[adrianzamarripa022802]

Cabin filter needs replacing or mould in the air con pipes?

how can i fix the mole in the air con pipes ??


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[davidsl500]

how can i fix the mole in the air con pipes ??


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Take it's spade away?

 

[sl500amgsport]

Reminds me of this ;-).

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[RussSL]

You can get aerosol cans of disinfectant which you release inside the car while running the air con. The gas cleans the pipes and kills off the mould. If its really bad you may need to do it twice. Do check the cabin filter as its often overlooked during servicing and can get very dirty...

 

[00slk]

A very weak possibility its the Cats, we have experienced this on my SL55 when it was cracked and still get a strong sulphur smell from time to time during my hard out driving, not that I do such a thing.........My Missus complained a bit when she had her Alfa V6 that it used to give off a horrible burning stinky smell at times. One day when I was out and driving I hit the rev limiter (very easy to do in the Alfa) and then she said 'that's the smell'! See I told you I get that smell when I am driving it)

 

[A.J.]

i bought a c300 from an auction and it always has this wierd smell at first i couldn’t smell it cause of my previous covid symptoms but my girlfriend would complain about it and now that im getting my smell back it and it is a nasty smell and only when i drive anyone know what to do


Sent from my iPhone using Tapatalk

A very weak possibility its the Cats, we have experienced this on my SL55 when it was cracked and still get a strong sulphur smell from time to time during my hard out driving, not that I do such a thing.........My Missus complained a bit when she had her Alfa V6 that it used to give off a horrible burning stinky smell at times. One day when I was out and driving I hit the rev limiter (very easy to do in the Alfa) and then she said 'that's the smell'! See I told you I get that smell when I am driving it)

I would agree, could be that Catalyser

 

[Mr Greedy]

My thoughts are:
- Something cracked on the exhaust system or a leaking exhaust gasket. You can normally test this by holding small feathers or a thin strip of tissue paper near the exhaust when it's running and the puffing from the exhaust should be noticeable. When testing up near the manifold, do it from cold and quickly, as the manifold heats up quickly!
- As above, something caught/rubbing/resting on a hot surface, causing smoldering plastic or rubber.
- Also as above, something rank in the air con system or water drainage system. I would remove the scuttle panel under the wipers and make sure that's all clean, and make sure all the bonnet drains are draining, and I would also make sure the heater matrix/cabin climate pipework drain is also not blocked. Once that's all confirmed, you can try a can or two of the air con disinfectant. Follow the can instructions.

Oh, and also listen and try to ascertain if the cabin isolation/recirculation flap is actually working. If that was stuck closed for some reason, that could be retaining moisture in the cabin maybe?

 

[mioba]

You can get aerosol cans of disinfectant which you release inside the car while running the air con. The gas cleans the pipes and kills off the mould. If its really bad you may need to do it twice. Do check the cabin filter as its often overlooked during servicing and can get very dirty...

and mouldy if neglected

 

[Wighty]

What about a “wet parp” by a previous owner