28i Ignition Coil & spark plugs

sumotan · Post by **sumotan** » Wed Dec 02, 2020 9:56 am

Hi Guys,
Looking to purchase the above as spares. Question do you guys use Original Bmw or Oem like Delphi etc also
for spark plugs what do you guys recommend.

Thanks

Leek78 · Post by **Leek78** » Wed Dec 02, 2020 12:16 pm

i used Delphi parts when i changed my coils last year. For spark plugs NGK.

Pbondar · Post by **Pbondar** » Wed Dec 02, 2020 12:32 pm

I went with NGK for both plugs n coils..not very often you get a duff experience with a Japanese supplier!

Having fitted new plugs n coils at 45k miles I couldn't detect any changes post the change..not that I'm advocating skipping maintenance..

sumotan · Post by **sumotan** » Wed Dec 02, 2020 12:52 pm

Thanks again Gents

Chippie · Post by **Chippie** » Wed Dec 02, 2020 1:04 pm

Be careful buying of eBay and the likes as there a a lot of fakes about

Pbondar · Post by **Pbondar** » Wed Dec 02, 2020 1:22 pm

Chippie wrote: ↑Wed Dec 02, 2020 1:04 pm Be careful buying of eBay and the likes as there a a lot of fakes about

Good point (droning on mode)..I buy a lot of stuff through Autodoc to try and avoid the fakes

sumotan · Post by **sumotan** » Wed Dec 02, 2020 3:09 pm

No worries buying them from a legit Bmw parts supplier.
Btw Phondar are you using NGK 97506 silzkbr8d8s laser iridium plugs, if so any difference in performance ?

Thanks again Gents

Pbondar · Post by **Pbondar** » Wed Dec 02, 2020 3:19 pm

sumotan wrote: ↑Wed Dec 02, 2020 3:09 pm No worries buying them from a legit Bmw parts supplier.
Btw Phondar are you using NGK 97506 silzkbr8d8s laser iridium plugs, if so any difference in performance ?

Thanks again Gents

Yup..

https://www.autodoc.co.uk/ngk/7891077

And nope..didn't see any differences..

The N20 engine unlike the N54 seems to be lot less demanding of its plugs n coils..in part the head design was changed to avoid the head 'cooking' the coils..

Smartbear · Post by **Smartbear** » Wed Dec 02, 2020 4:39 pm

Pbondar wrote: ↑Wed Dec 02, 2020 3:19 pm
sumotan wrote: ↑Wed Dec 02, 2020 3:09 pm No worries buying them from a legit Bmw parts supplier.
Btw Phondar are you using NGK 97506 silzkbr8d8s laser iridium plugs, if so any difference in performance ?

Thanks again Gents
Yup..

https://www.autodoc.co.uk/ngk/7891077

And nope..didn't see any differences..

The N20 engine unlike the N54 seems to be lot less demanding of its plugs n coils..in part the head design was changed to avoid the head 'cooking' the coils..

I think the standard n20 spark plugs are commonly used as upgrades for the n54 as they’re a “cooler” heat range

Rob

Boltz · Post by **Boltz** » Wed Dec 02, 2020 4:42 pm

NGK coils and plugs for me and fitted at 40k and in readiness for a remap that was done

Z4-forum.com

Z4-forum.com