Rotton Egg Smell

Dawsey · 10-01-2009, 10:52 AM

I have tried a search for this but no joy so apologises if this has been covered before.

This week the car has developed a rotten egg smell which I understand normally indicates that the cat has gone, could it be anything else?

The car did go in to BMW for the engine light about 3 months ago, a temp sensor was faulty and replaced under warranty.

Also it was MOT'd a couple of weeks ago, perhaps the emissions probe has damaged it?

Any ideas or thoughts would be greatly appreciated.

Thanks
Dawsey

Nickleback · 10-01-2009, 11:06 AM

Obvious answer is if it's still under warranty give it back to your $tealer to fix.

If it's run out then you've been very unlucky as it sounds like the catylitic converter that's causing the smell, but it could be a Lambda sensor that is the real problem but the cat is just giving off the smell because the mixture is wrong.

Have you noticed any difference in how it drives or sudden drop in fuel consumption or smoking etc ?

Steve748 · 10-01-2009, 11:06 AM

Have you had a relationship go a bit sour?

creepy coupe · 10-01-2009, 11:07 AM

Sulphur dioxide can be more noticable on the cooler, damper mornings we're having this time of year

Dawsey · 10-01-2009, 11:24 AM

Cheers will pop into local dealer and have a word with them, does seem a little hesitant at times now I come to think about it. will check MPG.

@steve748 - You have lost me?

@creepy - not using it first thing at the moment as I find myself on gardening leave!!

jjbirch · 10-01-2009, 12:29 PM

i had a E46 and it went on for a service and a air filter change ever time i turned the key it was like i farted lol, anyway had the filter changed and it worked smell gone

willhollin · 10-01-2009, 01:49 PM

Quote:

Originally Posted by jjbirch

i had a E46 and it went on for a service and a air filter change ever time i turned the key it was like i farted lol, anyway had the filter changed and it worked smell gone

I think you lost your sense of smell. At the last South West meet you stunk.

toxicnerve · 10-01-2009, 01:50 PM

Quote:

Originally Posted by Dawsey

@steve748 - You have lost me?

I think he's suggested that a jilted ex-partner may have left you a parting gift...

Dawsey · 10-01-2009, 02:02 PM

Quote:

Originally Posted by toxicnerve

I think he's suggested that a jilted ex-partner may have left you a parting gift...

Gotch!

sorry brain not on full power!!

jjbirch · 10-01-2009, 02:10 PM

Quote:

Originally Posted by willhollin

I think you lost your sense of smell. At the last South West meet you stunk.

you were late as well for the meet, you sure it was you that was stinking you pig lol

NFS · 10-01-2009, 05:08 PM

Quote:

Originally Posted by Dawsey

This week the car has developed a rotten egg smell which I understand normally indicates that the cat has gone, could it be anything else?

Definitely coming from the catalytic converter. Probably an engine management issue. Unburned fuel passing into the CAT.

10-01-2009, 10:52 AM	#1
Dawsey Atom avaliable for hire - PM me 5 Rep 46 Posts Drives: E90 335i & Ariel Atom Join Date: Jan 2009 Location: Tring, Herts iTrader: (0)	Rotton Egg Smell I have tried a search for this but no joy so apologises if this has been covered before. This week the car has developed a rotten egg smell which I understand normally indicates that the cat has gone, could it be anything else? The car did go in to BMW for the engine light about 3 months ago, a temp sensor was faulty and replaced under warranty. Also it was MOT'd a couple of weeks ago, perhaps the emissions probe has damaged it? Any ideas or thoughts would be greatly appreciated. Thanks Dawsey
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10-01-2009, 11:06 AM	#2
Nickleback Private First Class 7 Rep 118 Posts Drives: E92 335D M Sport Join Date: Jul 2007 Location: Down South iTrader: (0)	Obvious answer is if it's still under warranty give it back to your $tealer to fix. If it's run out then you've been very unlucky as it sounds like the catylitic converter that's causing the smell, but it could be a Lambda sensor that is the real problem but the cat is just giving off the smell because the mixture is wrong. Have you noticed any difference in how it drives or sudden drop in fuel consumption or smoking etc ? __________________ I am their leader, which way did they go ?
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10-01-2009, 11:06 AM	#3
Steve748 Lieutenant 12 Rep 564 Posts Drives: Corvette & Jeep Commander Join Date: Dec 2008 Location: North Yorks & Granite Hills CA iTrader: (0)	Have you had a relationship go a bit sour?
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10-01-2009, 11:07 AM	#4
creepy coupe Lieutenant General 1867 Rep 13,043 Posts Drives: BMW M340I G20 Join Date: Aug 2007 Location: UK iTrader: (2) Garage List 2015 BMW 435d [0.00] 2009 335i [0.00]	Sulphur dioxide can be more noticable on the cooler, damper mornings we're having this time of year
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10-01-2009, 11:24 AM	#5
Dawsey Atom avaliable for hire - PM me 5 Rep 46 Posts Drives: E90 335i & Ariel Atom Join Date: Jan 2009 Location: Tring, Herts iTrader: (0)	Cheers will pop into local dealer and have a word with them, does seem a little hesitant at times now I come to think about it. will check MPG. @steve748 - You have lost me? @creepy - not using it first thing at the moment as I find myself on gardening leave!!
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10-01-2009, 12:29 PM	#6
jjbirch Banned 75 Rep 2,927 Posts Drives: E60 530D M SPORT Join Date: Feb 2006 Location: england iTrader: (0) Garage List 2006 320d m sport [0.00]	i had a E46 and it went on for a service and a air filter change ever time i turned the key it was like i farted lol, anyway had the filter changed and it worked smell gone
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