rotten egg smell E55 part 2

[nickjonesn4]

So had the exhaust checked and nothing wrong with it and the smell has vanished... until today I put the a/c into the windscreen de-mist function and the rotten egg smell was back instantly.

Could it be something up with the a/c or heater?

Any help much appreciatd

 

[Bigrichw]

Get an aircon bomb from halfrauds


Sent from my iPhone using Tapatalk

 

[AMGeed]

Try this Nick.

Air Conditioning Clean - Halfords Autocentres

I think that is your problem. You can buy sprays that do the same job if you are into DIY but for £20 I'd let Halfrauds do it.

 

[John]

Some on here reckon you can just buy a can of Dettol antibacterial spray and spray that in to the air intakes.

Does the same job for less dosh.

Not tried it myself yet.

 

[nickjonesn4]

Thanks all

12 months into ownership and finally a problem that is cheaper to solve than expected!!!

Got a Halfords just round the corner so will book in

 

[Deleted member 37751]

It's possible that your windscreen wash holder is the culprit - completely empty the contents of it by simply sitting there pressing the screen wash stalk, pour a small amount of bleach into the reservoir with about a pint of water, leave it for an hour or two, then empty the reservoir as you did before, then top it up with a good concentrated windscreen wash and put the vents on full blast to see if it's made a difference.

 

[nickjonesn4]

The air con clean at halfords has sorted the smell out. Cheers for the tip.

 

[Lenny63]

Euro car parts are doing the meguirs air cleaner on offer at the moment - £8 or something

Get it !!!

 

[Flyinspanner]

Where exactly would the aircon intake be?

 

[Major774]

Where exactly would the aircon intake be?

For the W211, it's located above the aux. battery in the engine bay.

 

[ConChrist]

I had a really bad smell issue when I turn the a/c on last year. So bad my wife and kids did not enter the car. So I had some quiet rides until I fixed it.

After spending a fortune buying all kind of a/c chemicals and hours of cleaning and bombing, I spent some extra hours with google and found out tha MB has actually a procedure for this "known" issue! In a W204 You need to remove the cabin filter to access the temperature sensor on the condenser. Then you remove the sensor and put the MB cleaning tool (which is actually a long nozzle with spray holes on the right places) through the hole of the sensor. Now you can spray the heck out of the condenser with a cleaning solution MB is using. I do not remember the name of the solution but it worked miracles for me!

Now I have the family back in the car and no more quiet rides. :bannana:

 

[merc85]

Try this Nick.

Air Conditioning Clean - Halfords Autocentres

I think that is your problem. You can buy sprays that do the same job if you are into DIY but for £20 I'd let Halfrauds do it.

HOW MUCH!!! lol

 

[Mercy Me]

Did they check the whole exhaust, ie the catalytic converter(s) as well?

Rotten egg smell is usually a sign of hydrogen sulphide, so I would be checking the function and integrity of the catalytic converters to at least rule that possibility out, assuming you have not done that already.

 

[DRIVER200]

Funny enough had this same problem with my Audi SQ5 and always after washing it. Seemed as though water had built up somewhere and when blower or A/C used horrible smell would follow. I was able to clear the smell by putting the A/C on full for a few minutes and that did the trick. Not sure your problem is the same but who knows?