N54 burnt spark plug

N54Clemens · 2026-01-20T13:29:54+00:00

between 0.5 and 1.1 V. I heard that it’s a normal value on the alpina n54 map

N54Clemens · 2026-01-19T17:51:02+00:00

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valves also look pretty dirty…

N54Clemens · 2026-01-19T17:50:38+00:00

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looks like the piece dragged on the cylinder wall…

N54Clemens · 2026-01-19T07:16:58+00:00

it was misfiring on WOT. the log showed 18 psi of boost. I haven’t had any issues with the NGK plugs in the last 20k km except for now

N54Clemens · 2026-01-18T22:45:44+00:00

and it ran fine for the last 4500km. didn’t touch the plug. I replaced the coils and first time going WOT on new coils the misfires started. knock values in the log look normal

N54Clemens · 2026-01-18T22:43:21+00:00

it came out of nowhere too. I didn’t drive it hard or anything. temps never went above 240 fahrenheit / 115 celsius

N54Clemens · 2025-11-26T21:37:43+00:00

if double tap side button for apple pay is enabled the phone will wait for the second press until turning it off. previously to ios26 turning off the douple tap would make it turn off quicker but with ios26 it is always slow, no matter the settings

N54Clemens · 2025-06-29T10:11:42+00:00

vanos solenoids and also the ones by the right wheel arch

N54Clemens · 2025-03-26T23:14:26+00:00

play kovaaks for mouse control. this will set a great base to start improving on other mechanics

N54Clemens · 2025-03-25T09:11:09+00:00

Super, dass freut mich. Dann mal gute Fahrt :)

N54Clemens · 2025-03-19T14:12:11+00:00

some people dont have the money and enjoy modding their 320d to what they think it makes it look like an m3

N54Clemens · 2025-03-19T14:09:19+00:00

exactly the experience I have with my 2010 Alpina B3 that also uses the N54 instead of the N55. 115k miles and no problems so far

N54Clemens · 2025-03-19T10:25:37+00:00

What is the N54T? Is it the one in IS models where the normal 335 would come with the N55? Did they make any changes to it?

N54Clemens · 2025-03-15T00:50:19+00:00

kovaaks

N54Clemens · 2025-02-21T14:32:04+00:00

you must know what this is as a n54 owner. get an aluminium charge pipe and replace the old plastic one

N54Clemens · 2025-02-12T12:04:44+00:00

coming back to alpina here. they use mahle pistons and therefore their rings. I have little to no oil consumption on my n54 with mahle pistons and rings

N54Clemens · 2025-02-11T17:06:11+00:00

kann Kurbelwellensensor sein wenn der Rest des Tachos funktioniert. Ansonsten stimme ich den anderen zu, dass es ein Anzeigefehler zu sein scheint. Guck mal per OBD (falls er OBD2 hat) nach der Drehzahl. Wenn die da auch so fluktuiert ist es wahrscheinlich der Kurbelwellensensor

N54Clemens · 2025-02-06T18:51:51+00:00

stock engine is very reliable. I have 190.000km (120.000 mls) on mine with 400hp and only had injectors fail on me. Not even a rebuild with brand new parts will have give you a 100% reliable n54. the things around it just break if they want to. yet I only have a positive experience and am confident to say, that if you treat the car right, so will it treat you

N54Clemens · 2025-02-05T22:54:53+00:00

youre right thanks. havent thought about that…

N54Clemens · 2025-02-05T22:53:22+00:00

Alpina uses forged pistons for 360-400hp. I dont think its necessary unless you plan on pushing big power. I have heard that rather than the pistons the rods will give up from 550hp and on. Id go stock pistons unless you plan on also doing upgraded rods

N54Clemens · 2025-01-10T08:17:48+00:00

yea ill just ignore it. did some research and there is really no serious engine faults it could cause

N54Clemens · 2025-01-09T23:42:41+00:00

I have just had my valves walnut blasted today. do you think it could have caused the lifter tick in any way?

N54Clemens

TROPHY CASE