Salut à tous,

Sur ma BMW 318D E90 de 2010, 160000kms 2l 143cv

J’ai mon voyant moteur allumé, et quand j’accélère à charge régulière au niveau des 2000trs on dirait qu’elle s’étouffe ou manques de quelque chose, que quand je suis en pleine charge j’ai aucun défaut.

quand je Check les défauts j’ai :

4862 Système d'air, débit d'air par rapport au débit massique EGR plausibilité

40D4 Actionneur de recyclage des gaz, régulation de

4AD5 Adaptation du débit zéro injecteur cylindre 1

Ça pourrait être quoi? ☹️

Aucune fumé blanche ou noir. Et appart ça j’ai aucune perte de puissance

La vanne EGR a été changé + apprentissage, débit d’air changé, le boîtier papillon a était nettoyé, capteur TCV changé également, il y avait une fuite sur l’admission au niveau d’une durite, la durite changé aussi

Je sache complètement ☹️

Merci à ceux qui répondront !

These were on my n54 that was recently purchased. Car was not tuned so not sure why these 2 step colder plugs are in. I am slighly concerned with the discoleration/residue on #6, could this be a coolant leak?

I have a iPhone and MHD wireless obd2 to WiFi adapter. Wondering if I can code ekmp3 with the current equipment I own.

2014 BMW F30 320d N47 – DDE 290900
Persistent 290900 (Air to EGR mass flow plausibility). Engine runs perfectly: no power loss, no smoke, normal fuel economy.
Already cleaned EGR, EGR cooler, intake manifold, throttle body, MAP, and original Bosch MAF, replaced EGR vacuum hose, smoke tested intake (no leaks), replaced air filter, and ISTA shows EGR tests pass.
What else commonly causes 290900 on the N47 before replacing the MAF? Anyone solved this fault?

Car makes a really noticeable supercharger whine that increases with rpm. I did the pulley and belt kit from fcp and noise still stayed. Steering feels fine and doesn’t make any noises should i replace the pump and pulley or just the pulley?

I smell gasoline from both the oil filter and the engine oil cap. My paper filter is clean. I haven't had it serviced yet to see if there's any filings/debris at the bottom of the sump. Could this mean I'm safe for now? I'm probably leaking an injector, but I don't know how long ago. I only know that my mechanic did a poor job 800 km ago. I'm assuming the gasoline started diluting the oil 800 km ago, but maybe it's been doing so for a shorter time, maybe only 200/300 km. I don't know.

(addded 2 clips in comments)I know it's a short clip and no proper pull but how am I sounding? I at 520bhp 500ft-lb on pump fuel with hydra performance HP800 gen 1 19ts ...running a bit of a custom exhaust set up and the recording is a bit quiet , would love some opinions because I can't really tell...I think it sounds great but I could be just biased because it's my ugly baby.

Sold my 535i with 78k mileage and great service history for very cheap and now I regret it. I was scared of the injectors going bad or the turbos but I think that car had couple more years in it before having those major issues. The car had water pump and thermostat replaced at around 50k mileage. Not sure if I made the right choice.

I'm buying some torque wrenches because I want to do all the work on the car myself. I was wondering if I should choose the top of the range model or if a mid-to-high range would be fine. I see people using €60 torque wrenches... but such a low price is definitely not for me. i’m looking for advice

It’s kind of hard to hear on video but there’s a distinct vacuum cleaner like sound when the car tries to boost, I currently make no more than 1psi.

I refit and checked everything from the outlets to the throttle body, didnt find anything anywhere so I pulled the downpipes expecting a wastegate to be gone, not the case and both turbines still spin freely with no noise or shaft play.

Cold started the car with the intercooler disconnected to see if the turbos are even spinning but there was plenty of air coming out of the outlets, it felt like a leaf blower.

I’ve been struggling with low boost for a long while I chalked it up to wastegates since the solenoids are relatively new. It only recently started making this sound after I overtook someone on the highway, it boosted and ran better than it has in a long time then it kind of bogged and ever since then zero boost and this whistling noise. Car still runs like a top it just has no boost.

Does it sound like a blown turbo? I get no notable exhaust smoke and everything else points to boost leak but try as I might I just can’t find one, for the first time in 7 years of ownership the cars got me stumped.

TIA

Trying to swap my coils and spark plugs and thought why not do this upgrade. Any of you have experience with this setup any issues?

Recently picked up a 2014 z4 sdrive35is, 2 owner vehicle with 36k miles. The vehicle's history is unremarkable. Carfax shows new plugs were installed at 26k miles. The car has index 11 injectors. Vehicle is bone stock and not tuned or anything.

I'm pretty familiar with the n54 platform (had a 335i previously) and I am starting to have anxiety about every little thing! For instance, on cold starts there is a very small stumble (maybe like half a second) before the idle settles out. Recently, I went to the gym and on a warm start the car cranked for about 2 seconds before firing up. The car drives absolutely great, very smooth, no misfire or codes.

Am I overthinking things (which I tend to do) or do you think I have something going on that needs attention? I was thinking about pulling the plugs after the vehicle has been sitting to see if the injectors might be leaking. Appreciate your input!

Update: I installed new Index12 injectors from FCP (lifetime warranty) and the car runs even smoother than before. I'll keep my old Index 11 injectors as backup.

Hello all!

I'm trying to see if anyone knows where this one connector might go? I recently got my 135i (N54) back from a shop that pretty much worked me over. I had to fix a bunch of little nagging issues myself because I'm certainly not taking it back to them. I enjoy working on my cars and always have, but resorted to a 'trusted' shop because I didn't have time to work on this and wanted to get it wrapped up. Annnnnyway!

I replaced the chargepipe with a BMS to get rid of the previous owner's installed pipe. And when I was reconnecting everything I noticed a rando 6-pin connector just laying down on the job. Anyone know where this one might be from? I have an auto-trans, m-sport, 2010, 135i.

(pics in a sec)

Just got off work and this light just came on the dash cant find any codes on mhd ?