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F30 330d extreme eggy smell from exhaust
17-01-2020, 09:31 PM,
#1
F30 330d extreme eggy smell from exhaust
Dear fanatics, after driving my 2015 stock 330d, I noticed a very foul eggy smell. The smell is unbearable and my luggage in the boot was smelling. The small can be felt 15 meters away from the car. Car is driving really well with full power. What could be causing this? Mileage is 71k.
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17-01-2020, 09:32 PM,
#2
RE: F30 330d extreme eggy smell from exhaust
Your catalytic converter is probably clogged
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17-01-2020, 09:33 PM,
#3
RE: F30 330d extreme eggy smell from exhaust
(17-01-2020, 09:32 PM)NBN Wrote: Your catalytic converter is probably clogged

Thanks for the quick response. How do I unclog it?
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17-01-2020, 09:35 PM,
#4
RE: F30 330d extreme eggy smell from exhaust
Is it a common failure? I think it's the first time I have heard of this problem. What could have caused it?
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17-01-2020, 10:18 PM,
#5
RE: F30 330d extreme eggy smell from exhaust
(17-01-2020, 09:33 PM)3 serious Wrote:
(17-01-2020, 09:32 PM)NBN Wrote: Your catalytic converter is probably clogged

Thanks for the quick response. How do I unclog it?

U don't, u take it out.

It will release the sad torque gremlins that are trapped

Sent on the move using Tapatalk

#NoLivesMatter
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17-01-2020, 10:29 PM,
#6
RE: F30 330d extreme eggy smell from exhaust
(17-01-2020, 10:18 PM)tman Wrote:
(17-01-2020, 09:33 PM)3 serious Wrote:
(17-01-2020, 09:32 PM)NBN Wrote: Your catalytic converter is probably clogged

Thanks for the quick response. How do I unclog it?

U don't, u take it out.

It will release the sad torque gremlins that are trapped

Sent on the move using Tapatalk

By taking it out you mean replacing or deleting? You mean there will be more torque once it is removed or replaced? Car still has few months on motorplan. Looking forward to your response.
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17-01-2020, 11:36 PM,
#7
RE: F30 330d extreme eggy smell from exhaust
(17-01-2020, 10:29 PM)3 serious Wrote:
(17-01-2020, 10:18 PM)tman Wrote:
(17-01-2020, 09:33 PM)3 serious Wrote:
(17-01-2020, 09:32 PM)NBN Wrote: Your catalytic converter is probably clogged

Thanks for the quick response. How do I unclog it?

U don't, u take it out.

It will release the sad torque gremlins that are trapped

Sent on the move using Tapatalk

By taking it out you mean replacing or deleting? You mean there will be more torque once it is removed or replaced? Car still has few months on motorplan. Looking forward to your response.

If you still have Motorplan... You should take the car in for them to identify the issue... Which is likely the cat... Generally bmw will replace the whole front section of the exhaust... Or the entire system

Either way... This is something that Motorplan must resolve.

[Image: webp.net-compress-image%20(3)_4062250708.jpg]
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18-01-2020, 04:10 AM,
#8
RE: F30 330d extreme eggy smell from exhaust
Out of plan, fit a downpipe, no restrictions, better exhaust tone and slightly more response.
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18-01-2020, 08:55 AM,
#9
RE: F30 330d extreme eggy smell from exhaust
which brand of diesel are you using? I would book the car in and let the dealership sort the issue out if motor plan is still active

Cartel
Current:
2014 F30 320d with M performance power kit : My run around
2019 G05 X5 xdrive 30d M Sport : Family wagon
2019 G20 330i M Sport : Hers
Ex:
2011 C350 CDI



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18-01-2020, 10:18 AM,
#10
F30 330d extreme eggy smell from exhaust
I had this issue on mine, dealer changed something and it was fine after

[Image: traction-control-malfunction-automobile-...tive-5.png]

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18-01-2020, 11:15 AM,
#11
RE: F30 330d extreme eggy smell from exhaust
(17-01-2020, 11:36 PM)Riaad Wrote:
(17-01-2020, 10:29 PM)3 serious Wrote:
(17-01-2020, 10:18 PM)tman Wrote:
(17-01-2020, 09:33 PM)3 serious Wrote:
(17-01-2020, 09:32 PM)NBN Wrote: Your catalytic converter is probably clogged

Thanks for the quick response. How do I unclog it?

U don't, u take it out.

It will release the sad torque gremlins that are trapped

Sent on the move using Tapatalk

By taking it out you mean replacing or deleting? You mean there will be more torque once it is removed or replaced? Car still has few months on motorplan. Looking forward to your response.

If you still have Motorplan... You should take the car in for them to identify the issue... Which is likely the cat... Generally bmw will replace the whole front section of the exhaust... Or the entire system

Either way... This is something that Motorplan must resolve.

Thanks. I still have a few months on motorplan so I will book it in for Tuesday. Sounds like it's expensive to fix.
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18-01-2020, 11:16 AM,
#12
RE: F30 330d extreme eggy smell from exhaust
(18-01-2020, 04:10 AM)BeemerFanatic Wrote: Out of plan, fit a downpipe, no restrictions, better exhaust tone and slightly more response.

Thanks for this suggestion. Doesn't the downpipe have negatives e.g. higher fuel consumption and less engine/turbo reliability?
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18-01-2020, 11:17 AM,
#13
RE: F30 330d extreme eggy smell from exhaust
(18-01-2020, 08:55 AM)lebofa Wrote: which brand of diesel are you using? I would book the car in and let the dealership sort the issue out if motor plan is still active

I use 50p. Where I stay they only sell 50p. There is nothing better available in my town.
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18-01-2020, 11:19 AM,
#14
RE: F30 330d extreme eggy smell from exhaust
(18-01-2020, 10:18 AM)S1NGH 911 Wrote: I had this issue on mine, dealer changed something and it was fine after

I just wonder what was replaced. Some are saying it can be the whole exhaust system? How long did your car spend at the dealer?
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18-01-2020, 11:19 AM,
#15
RE: F30 330d extreme eggy smell from exhaust
(17-01-2020, 09:31 PM)3 serious Wrote: Dear fanatics, after driving my 2015 stock 330d, I noticed a very foul eggy smell. The smell is unbearable and my luggage in the boot was smelling. The small can be felt 15 meters away from the car. Car is driving really well with full power. What could be causing this? Mileage is 71k.

Sulphur build up in Cat, have you changed the Diesel filter?
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18-01-2020, 11:27 AM,
#16
RE: F30 330d extreme eggy smell from exhaust
(18-01-2020, 11:19 AM)Kavi4GP Wrote:
(17-01-2020, 09:31 PM)3 serious Wrote: Dear fanatics, after driving my 2015 stock 330d, I noticed a very foul eggy smell. The smell is unbearable and my luggage in the boot was smelling. The small can be felt 15 meters away from the car. Car is driving really well with full power. What could be causing this? Mileage is 71k.

Sulphur build up in Cat, have you changed the Diesel filter?

Im not sure. The car has always been serviced by the dealer since it's still under motorplan. I actually doubt it was ever changed. Car is due for service in 2-3k kilometers. Is there a way to check?
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20-01-2020, 03:30 PM,
#17
RE: F30 330d extreme eggy smell from exhaust
Keep us posted what they find and what they replace

E46 2003 325i Sold
E90 LCI 2009 325i Trade in
F30 2013 320d upgraded
F30 2016 330d current
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27-01-2020, 08:28 PM,
#18
RE: F30 330d extreme eggy smell from exhaust
(20-01-2020, 03:30 PM)Iceman007 Wrote: Keep us posted what they find and what they replace
Hi, sure I will keep you guys posted. I haven't been to the dealer yet. The car has not generated that terrible smell since that day. It's been more than a week now and I have driven it hard a few times. No obvious loss of power or increased consumption. Consumption is steady at 8.0 l/100k according to the computer. Cheers
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28-01-2020, 12:40 AM,
#19
RE: F30 330d extreme eggy smell from exhaust
Foul eggy smell is the cat but then again, these cars can do a regen when you drive it hard and clear it up and it will be fine again. Report it anyway to the dealer and let them have a look and when motorplan is done, remove it and get a downpipe fitted.No issues or gremlins again except torque gremlins ha ha ha!

Current:
2013 EB BMW M135i F20 - Xcede Tuned - 264wkw/635wnm
2016 Ice White Hyundai ix35 R2.0 CRDi Elite -
2008 Silverbird Grey VW Polo 1.4i Trendline

Gone but never forgotten:
2011 Mercedes-Benz C250 CDi BE Avantgarde - Madness Tuned
2010 Titanium Silver BMW 320d Exclusive E90 LCi - Chiplogic Tuned
2008 Stratosgrau Stratos Grey BMW 320i Individual E90
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28-01-2020, 11:39 AM,
#20
RE: F30 330d extreme eggy smell from exhaust
(28-01-2020, 12:40 AM)AshG108 Wrote: Foul eggy smell is the cat but then again, these cars can do a regen when you drive it hard and clear it up and it will be fine again. Report it anyway to the dealer and let them have a look and when motorplan is done, remove it and get a downpipe fitted.No issues or gremlins again except torque gremlins ha ha ha!
Thanks a lot Ash. I was under the impression that local 330ds do not do a regeneration? Is that correct? Nonetheless I will take it to the dealer soon.
I have been schooled about the mechanical and power benefits of getting a downpipe and maybe after MP expires I will go for it.
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