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      10-10-2014, 10:45 AM   #1
cadbm
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Question Fault codes 330d

Hello all,

I've recently picked up a '10 plate 330d (e92 / Manual), which has 90k on the clock.

I've been getting paranoid recently about the car (as I love it, came from a 1.7 Astra!).

Sometimes I feel like the power isn't quite there (this isn't consistent), but i'm not sure if that's because i'm still getting used to the gear box.

Anyway I went ahead and bought a WiFi code reader to see if there is any issues (No engine light on dash).

And I got the following codes back. Only one of which has a description.

P3043
P0401 - Exhaust Gas Recirculation Flow Insufficient Detected
C00D4
C0501
C00E9
C0C9E
C0C9F

Now i'm not a mechanic at all and I haven't ever checked fault codes before but I'm not sure if I should clear them and see if they come back.

Or if every single fault should be looked at.

I'm aware that BMW offer a diagnostic check for 150 inc VAT which they will basically do what I have done already but actually translate the codes for me and give me a better idea of what actually needs doing.

I need some advice on what to do next.

Thanks.
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      10-10-2014, 02:37 PM   #2
Sensible_
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P3043 is EGR related too.

Those codes I'm guessing are ODBII generic. You really need BMW specific codes. As you have a wifi adapter I'd purchase BMWhat app for your iPhone or android phone. Or even better get a K+DCAN use cable and INPA / Rheingold for complete BMW diagnosis.

So, seems the EGR valve is sticking. I'd start by cleaning / replacing it.

I'm betting you'll have a DPF fault as well. Have you noticed the DPF attempting a regen recently?

Are you seeing any smoke out of the exhaust?

I'd never take it to BMW. If you don't want to read the BMW spec codes yourself take it to an independent. They will tell you what's up and what needs doing. Where about are you in the UK?


The 330d is a great car, just make sure you look after it. Investing in a way to read BMW spec codes is a must for any BMW owner in my opinion.
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      10-10-2014, 03:01 PM   #3
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Sorry, I forgot to answer your question re clearing the codes.

I'm not sure what code reader you have but does it say if the fault is currently present?

Below are 2 more of your codes...

C00D4 - wheel speed sensor right rear low input
C0501 - power steering Solenoid Circuit Range/Performance
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      10-11-2014, 02:48 AM   #4
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I'd clear the codes first and see if they reappear after going for a run in the car.
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      10-11-2014, 04:06 AM   #5
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Pop the plastic cover off the top of the EGR valve,grease the metal runners inside ,refit,erase memory.Job done
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      10-14-2014, 02:01 AM   #6
cadbm
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Quote:
Originally Posted by Sensible_ View Post
P3043 is EGR related too.

Those codes I'm guessing are ODBII generic. You really need BMW specific codes. As you have a wifi adapter I'd purchase BMWhat app for your iPhone or android phone. Or even better get a K+DCAN use cable and INPA / Rheingold for complete BMW diagnosis.

So, seems the EGR valve is sticking. I'd start by cleaning / replacing it.

I'm betting you'll have a DPF fault as well. Have you noticed the DPF attempting a regen recently?

Are you seeing any smoke out of the exhaust?

I'd never take it to BMW. If you don't want to read the BMW spec codes yourself take it to an independent. They will tell you what's up and what needs doing. Where about are you in the UK?


The 330d is a great car, just make sure you look after it. Investing in a way to read BMW spec codes is a must for any BMW owner in my opinion.
I got the BMWhat app and took a look, just the BMW error codes came up this time (EGR related).

No smoke out of the exhaust although it is pretty hard to tell when driving.

Based in Cambridge.

Quote:
Originally Posted by oldbilly View Post
I'd clear the codes first and see if they reappear after going for a run in the car.
I cleared the codes and have driven 120 miles since and the codes havent come back. Does this mean everything is ok? Or should I still look at the EGR valve?
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      10-14-2014, 02:14 AM   #7
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Good stuff. I'd still give the EGR a clean as per Kris's instructions.
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      10-14-2014, 04:07 AM   #8
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does the engine get up to temp (hot) maybe the EGR needs changing, easy to do and quite cheap to buy, the reason I'm saying this its all part and coupled to the DPF regeneration process.
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