What are your current plugs' part number/mfg?
The Denso T20EP-U are a better (visually) looking match. IIRC, I dont think I've actually used the NGK's in my M103. A friend of mine did though. I just used the Denso's.
T20EP-U
BP5ES
I use BP5EFS in my M116
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!
(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)
82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k
RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k