[SID335]

Over the last week my E92 335i(07) has been misfiring when cold,definately running on 5 cylinders and after letting it run for a couple of minutes the eml (small yellow engine light) on dash appears,nothing on I drive,If I then switch off and restart although a little lumpy everything is fine (eml light off),when warm the idle is completely steady.Booked it in at the dealers,and they agree there is a problem but BMW will not allow them to replace suspect coils/injectors unlesss there is a fault code present ,is it true that the eml fault is not logged anywhere on the vehicle ?,the vehicle is staying at the dealers as they found a cracked 225m alloy and are waiting for new items from Germany,which could take upto 4 weeks,they have given me a courtesy car in the meantime and have said they hope the eml light will progress into fault code,any thoughts on what I can do guys.............?

[Yahoo]

An EML will definately trigger a fault code. It works the other way round - many fault codes don't trigger the EML.

[SID335]

Originally Posted by Yahoo

An EML will definately trigger a fault code. It works the other way round - many fault codes don't trigger the EML.

Would the fault code ever disappear if it was no longer present i.e after the second start up where there is no EML light present ?

[pjs]

Last time mine played up when cold, in the same way, needed new HPFP

[Yahoo]

Originally Posted by SID335

Would the fault code ever disappear if it was no longer present i.e after the second start up where there is no EML light present ?

No - the EML may go off, but the code will remain logged until it is cleared via the OBD port.

[newmanman]

Hi, mine threw a EML last August and drove like a bag of spanners, it was in the dealer 6 times over 6 months before misfire solved, original fault was misfire on cylinders 2 & 3 , its been fine for 3.5 weeks now with 6th visit having a new coil and injector on cylinder 3 only.

The other 5 visits where a mix of 6 new plugs and a larger amount of diagnostic checks solving nothing, all very frustrating, I was pushing for new coils and injectors all round but BMW would not it have it.

57 plate on 36k miles under extended warranty, got there in the end

Good luck,

[SID335]

Originally Posted by newmanman

Hi, mine threw a EML last August and drove like a bag of spanners, it was in the dealer 6 times over 6 months before misfire solved, original fault was misfire on cylinders 2 & 3 , its been fine for 3.5 weeks now with 6th visit having a new coil and injector on cylinder 3 only.

The other 5 visits where a mix of 6 new plugs and a larger amount of diagnostic checks solving nothing, all very frustrating, I was pushing for new coils and injectors all round but BMW would not it have it.

57 plate on 36k miles under extended warranty, got there in the end

Good luck,

Thanks mate,I think I am going to have to insist that it is sorted,the dealer is in other words telling me that I may have to drive it until I break down at the roadside before they will cover anything under warranty,I have just had new turbo's and wastegates in January this year,not happy !!!!