Hallo Mike, not sure about code, had mine replaced at the stealers when it had to go for major service. But , the plugs is iridium plugs , will check tomorrow morning if i can find the old ones and send the codes.
The wife's 125i also had a rough idle changed plugs (got them from dealership) and seemed sorted for sometime. Then started misfiring and coil no. 3 needed replacing. So check the coils while you're changing plugs. BTW this was at around 75k km
im going to do a service on my 125i soon.
going with - NGK Iridium plugs - NGK 6619 Iridium Spark Plugs LFR6AIX-11
also if you need to get a coil pack: BOSCH 470. they around R350-370.
the 470 replaces the 464.
Correction!
i check the box i bought - NGK ILZFR6D11
I apologise for the mistake, i went back to my search history as i was doing research on spark plugs for my car and the previous model number came up, but the above is the correct to what i bought as i have checked the box this morning.
:smilebounce: actually they where the correct Plugs - but no one has so I settled for the Bosch PLZFR6A-11S which funny enough is the same code as the NGK one - and I got them very cheap from Goldwagen, and they work perfect.
Sorted out the bad Idle almost totally, except it has a small hiccup from time to time, But I suspect one of the Coils might be going. :thumbs:
This is the email I received from NGK. "For your vehicle application you need PLZFR6A-11S and we have stock. This is a Platinum spark plug.
The difference between LFR6AIX-11 and LFR6A-11 is that the IX means the center electrode are made from Iridium "
i changed my coils too on saturday. oh what a joy the car is now. truly like a new car, more power. the old coils were totally shot. black and the electrode was round and not a point - on every plug!
Correction!
i check the box i bought - NGK ILZFR6D11
I apologise for the mistake, i went back to my search history as i was doing research on spark plugs for my car and the previous model number came up, but the above is the correct to what i bought as i have checked the box this morning.
i changed my coils too on saturday. oh what a joy the car is now. truly like a new car, more power. the old coils were totally shot. black and the electrode was round and not a point - on every plug!
yeah the plugs made a difference, in fact so much so the Aircon is better, I think because it was hurting so bad it was cutting power to the aircon. I must still do the Coil Packs