Rockauto has the plugs(NGK 97181)
Reviews of spare parts for BMW
Using Redline 5w-50 on my E90 M3. it's supposed to have a similar viscosity at high temps as most 60wt oils. Comes up to operating temp faster and doesn't overheat.
I've been using the original castrol 10-60 oil and then more recently the BMW M TwinPower 10-60 oil for the last 10 years on my e46 M3.
I was running Castrol 0w30 European formula in my 07 323i and the car ticked a lot and made noises I’ve never heard it make previously when running 5w30. So recently I swapped to castrol 5w40 European formula and the car is whisper quite even on cold starts. It just sounds so much healthier.
Turns out the high pressure fuel pump had disintegrated and the entire fuel system had to be replaced. They tried to blame it on water in the fuel, I didn’t cave, so warranty covered it.
Get Roadstones which are made by Nexen. I use them on a remapped (300bhp) 3 litre diesel BMW and they are great in both the dry and the wet.
You should just buy the Mahle or Mann filter (in that order) and replace the whole thing. Your vacuum line running to it could also be leaking.
If you are willing to put some money into it before resorting to drastic measures, try replacing all 6 of your spark plugs and ignition coils. Might help in your case, or it might not.
I would pass. I had these on my Z3. They were great at first, but got stiff really quick.
my bmw would say this, a year after having a new oem batt installed, and only in the winter, dealer couldn't find the problem, so I traded it in for another subaru because parasitic draws are the last thing you want in a german car
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